web开发过程中经常用到的一些公共方法及操作

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//先在父页面定义一个全局变量
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View Code

#region 私有方法
/// <summary>
/// 过滤特殊字符
/// </summary>
private static string String2Json(String s)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.Length; i++)
{
char c = s.ToCharArray()[i];
switch (c)
{
case '"':
sb.Append("\""); break;
case '\':
sb.Append("\\"); break;
case '/':
sb.Append("\/"); break;
case '':
sb.Append("\b"); break;
case 'f':
sb.Append("\f"); break;
case ' ':
sb.Append("\n"); break;
case ' ':
sb.Append("\r"); break;
case ' ':
sb.Append("\t"); break;
default:
sb.Append(c); break;
}
}
return sb.ToString();
}

/// <summary>
/// 格式化字符型、日期型、布尔型
/// </summary>
private static string StringFormat(string str, Type type)
{
if (type == typeof(string))
{
str = String2Json(str);
str = """ + str + """;
}
else if (type == typeof(DateTime))
{
str = """ + str + """;
}
else if (type == typeof(bool))
{
str = str.ToLower();
}
else if (type != typeof(string) && string.IsNullOrEmpty(str))
{
str = """ + str + """;
}
return str;
}
#endregion

#region List转换成Json
/// <summary>
/// List转换成Json
/// </summary>
public static string ListToJson<T>(IList<T> list)
{
object obj = list[0];
return ListToJson<T>(list, obj.GetType().Name);
}

/// <summary>
/// List转换成Json
/// </summary>
public static string ListToJson<T>(IList<T> list, string jsonName)
{
StringBuilder Json = new StringBuilder();
if (string.IsNullOrEmpty(jsonName)) jsonName = list[0].GetType().Name;
Json.Append("{"" + jsonName + "":[");
if (list.Count > 0)
{
for (int i = 0; i < list.Count; i++)
{
T obj = Activator.CreateInstance<T>();
PropertyInfo[] pi = obj.GetType().GetProperties();
Json.Append("{");
for (int j = 0; j < pi.Length; j++)
{
Type type = pi[j].GetValue(list[i], null).GetType();
Json.Append(""" + pi[j].Name.ToString() + "":" + StringFormat(pi[j].GetValue(list[i], null).ToString(), type));

if (j < pi.Length - 1)
{
Json.Append(",");
}
}
Json.Append("}");
if (i < list.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
#endregion

#region 对象转换为Json
/// <summary>
/// 对象转换为Json
/// </summary>
/// <param name="jsonObject">对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(object jsonObject)
{
string jsonString = "{";
PropertyInfo[] propertyInfo = jsonObject.GetType().GetProperties();
for (int i = 0; i < propertyInfo.Length; i++)
{
object objectValue = propertyInfo[i].GetGetMethod().Invoke(jsonObject, null);
string value = string.Empty;
if (objectValue is DateTime || objectValue is Guid || objectValue is TimeSpan)
{
value = "'" + objectValue.ToString() + "'";
}
else if (objectValue is string)
{
value = "'" + ToJson(objectValue.ToString()) + "'";
}
else if (objectValue is IEnumerable)
{
value = ToJson((IEnumerable)objectValue);
}
else
{
value = ToJson(objectValue.ToString());
}
jsonString += """ + ToJson(propertyInfo[i].Name) + "":" + value + ",";
}
jsonString.Remove(jsonString.Length - 1, jsonString.Length);
return jsonString + "}";
}
#endregion

#region 对象集合转换Json
/// <summary>
/// 对象集合转换Json
/// </summary>
/// <param name="array">集合对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(IEnumerable array)
{
string jsonString = "[";
foreach (object item in array)
{
jsonString += ToJson(item) + ",";
}
jsonString.Remove(jsonString.Length - 1, jsonString.Length);
return jsonString + "]";
}
#endregion

#region 普通集合转换Json
/// <summary>
/// 普通集合转换Json
/// </summary>
/// <param name="array">集合对象</param>
/// <returns>Json字符串</returns>
public static string ToArrayString(IEnumerable array)
{
string jsonString = "[";
foreach (object item in array)
{
jsonString = ToJson(item.ToString()) + ",";
}
jsonString.Remove(jsonString.Length - 1, jsonString.Length);
return jsonString + "]";
}
#endregion

#region DataSet转换为Json
/// <summary>
/// DataSet转换为Json
/// </summary>
/// <param name="dataSet">DataSet对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(DataSet dataSet)
{
string jsonString = "{";
foreach (DataTable table in dataSet.Tables)
{
jsonString += """ + table.TableName + "":" + ToJson(table) + ",";
}
jsonString = jsonString.TrimEnd(',');
return jsonString + "}";
}
#endregion

#region Datatable转换为Json
/// <summary>
/// Datatable转换为Json
/// </summary>
/// <param name="table">Datatable对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(DataTable dt)
{
StringBuilder jsonString = new StringBuilder();
jsonString.Append("[");
DataRowCollection drc = dt.Rows;
for (int i = 0; i < drc.Count; i++)
{
jsonString.Append("{");
for (int j = 0; j < dt.Columns.Count; j++)
{
string strKey = dt.Columns[j].ColumnName;
string strValue = drc[i][j].ToString();
Type type = dt.Columns[j].DataType;
jsonString.Append(""" + strKey + "":");
strValue = StringFormat(strValue, type);
if (j < dt.Columns.Count - 1)
{
jsonString.Append(strValue + ",");
}
else
{
jsonString.Append(strValue);
}
}
jsonString.Append("},");
}
jsonString.Remove(jsonString.Length - 1, 1);
jsonString.Append("]");
return jsonString.ToString();
}

/// <summary>
/// DataTable转换为Json
/// </summary>
public static string ToJson(DataTable dt, string jsonName)
{
StringBuilder Json = new StringBuilder();
if (string.IsNullOrEmpty(jsonName)) jsonName = dt.TableName;
Json.Append("{"" + jsonName + "":[");
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
Json.Append("{");
for (int j = 0; j < dt.Columns.Count; j++)
{
Type type = dt.Rows[i][j].GetType();
Json.Append(""" + dt.Columns[j].ColumnName.ToString() + "":" + StringFormat(dt.Rows[i][j].ToString(), type));
if (j < dt.Columns.Count - 1)
{
Json.Append(",");
}
}
Json.Append("}");
if (i < dt.Rows.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
#endregion

#region DataReader转换为Json
/// <summary>
/// DataReader转换为Json
/// </summary>
/// <param name="dataReader">DataReader对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(DbDataReader dataReader)
{
StringBuilder jsonString = new StringBuilder();
jsonString.Append("[");
while (dataReader.Read())
{
jsonString.Append("{");
for (int i = 0; i < dataReader.FieldCount; i++)
{
Type type = dataReader.GetFieldType(i);
string strKey = dataReader.GetName(i);
string strValue = dataReader[i].ToString();
jsonString.Append(""" + strKey + "":");
strValue = StringFormat(strValue, type);
if (i < dataReader.FieldCount - 1)
{
jsonString.Append(strValue + ",");
}
else
{
jsonString.Append(strValue);
}
}
jsonString.Append("},");
}
dataReader.Close();
jsonString.Remove(jsonString.Length - 1, 1);
jsonString.Append("]");
return jsonString.ToString();
}
#endregion

View Code

/// <summary>
/// Xml的操作公共类
/// </summary>
public class XmlHelper
{
#region 字段定义
/// <summary>
/// XML文件的物理路径
/// </summary>
private string _filePath = string.Empty;
/// <summary>
/// Xml文档
/// </summary>
private XmlDocument _xml;
/// <summary>
/// XML的根节点
/// </summary>
private XmlElement _element;
#endregion

#region 构造方法
/// <summary>
/// 实例化XmlHelper对象
/// </summary>
/// <param name="xmlFilePath">Xml文件的相对路径</param>
public XmlHelper(string xmlFilePath)
{
//获取XML文件的绝对路径
_filePath = SysHelper.GetPath(xmlFilePath);
}
#endregion

#region 创建XML的根节点
/// <summary>
/// 创建XML的根节点
/// </summary>
private void CreateXMLElement()
{

//创建一个XML对象
_xml = new XmlDocument();

if (DirFile.IsExistFile(_filePath))
{
//加载XML文件
_xml.Load(this._filePath);
}

//为XML的根节点赋值
_element = _xml.DocumentElement;
}
#endregion

#region 获取指定XPath表达式的节点对象
/// <summary>
/// 获取指定XPath表达式的节点对象
/// </summary>
/// <param name="xPath">XPath表达式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
/// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
/// </param>
public XmlNode GetNode(string xPath)
{
//创建XML的根节点
CreateXMLElement();

//返回XPath节点
return _element.SelectSingleNode(xPath);
}
#endregion

#region 获取指定XPath表达式节点的值
/// <summary>
/// 获取指定XPath表达式节点的值
/// </summary>
/// <param name="xPath">XPath表达式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
/// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
/// </param>
public string GetValue(string xPath)
{
//创建XML的根节点
CreateXMLElement();

//返回XPath节点的值
return _element.SelectSingleNode(xPath).InnerText;
}
#endregion

#region 获取指定XPath表达式节点的属性值
/// <summary>
/// 获取指定XPath表达式节点的属性值
/// </summary>
/// <param name="xPath">XPath表达式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
/// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
/// </param>
/// <param name="attributeName">属性名</param>
public string GetAttributeValue(string xPath, string attributeName)
{
//创建XML的根节点
CreateXMLElement();

//返回XPath节点的属性值
return _element.SelectSingleNode(xPath).Attributes[attributeName].Value;
}
#endregion

#region 新增节点
/// <summary>
/// 1. 功能：新增节点。
/// 2. 使用条件：将任意节点插入到当前Xml文件中。
/// </summary>
/// <param name="xmlNode">要插入的Xml节点</param>
public void AppendNode(XmlNode xmlNode)
{
//创建XML的根节点
CreateXMLElement();

//导入节点
XmlNode node = _xml.ImportNode(xmlNode, true);

//将节点插入到根节点下
_element.AppendChild(node);
}

/// <summary>
/// 1. 功能：新增节点。
/// 2. 使用条件：将DataSet中的第一条记录插入Xml文件中。
/// </summary>
/// <param name="ds">DataSet的实例，该DataSet中应该只有一条记录</param>
public void AppendNode(DataSet ds)
{
//创建XmlDataDocument对象
XmlDataDocument xmlDataDocument = new XmlDataDocument(ds);

//导入节点
XmlNode node = xmlDataDocument.DocumentElement.FirstChild;

//将节点插入到根节点下
AppendNode(node);
}
#endregion

#region 删除节点
/// <summary>
/// 删除指定XPath表达式的节点
/// </summary>
/// <param name="xPath">XPath表达式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
/// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
/// </param>
public void RemoveNode(string xPath)
{
//创建XML的根节点
CreateXMLElement();

//获取要删除的节点
XmlNode node = _xml.SelectSingleNode(xPath);

//删除节点
_element.RemoveChild(node);
}
#endregion //删除节点

#region 保存XML文件
/// <summary>
/// 保存XML文件
/// </summary>
public void Save()
{
//创建XML的根节点
CreateXMLElement();

//保存XML文件
_xml.Save(this._filePath);
}
#endregion //保存XML文件

#region 静态方法

#region 创建根节点对象
/// <summary>
/// 创建根节点对象
/// </summary>
/// <param name="xmlFilePath">Xml文件的相对路径</param>
private static XmlElement CreateRootElement(string xmlFilePath)
{
//定义变量，表示XML文件的绝对路径
string filePath = "";

//获取XML文件的绝对路径
filePath = SysHelper.GetPath(xmlFilePath);

//创建XmlDocument对象
XmlDocument xmlDocument = new XmlDocument();
//加载XML文件
xmlDocument.Load(filePath);

//返回根节点
return xmlDocument.DocumentElement;
}
#endregion

#region 获取指定XPath表达式节点的值
/// <summary>
/// 获取指定XPath表达式节点的值
/// </summary>
/// <param name="xmlFilePath">Xml文件的相对路径</param>
/// <param name="xPath">XPath表达式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
/// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
/// </param>
public static string GetValue(string xmlFilePath, string xPath)
{
//创建根对象
XmlElement rootElement = CreateRootElement(xmlFilePath);

//返回XPath节点的值
return rootElement.SelectSingleNode(xPath).InnerText;
}
#endregion

#region 获取指定XPath表达式节点的属性值
/// <summary>
/// 获取指定XPath表达式节点的属性值
/// </summary>
/// <param name="xmlFilePath">Xml文件的相对路径</param>
/// <param name="xPath">XPath表达式,
/// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
/// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
/// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
/// </param>
/// <param name="attributeName">属性名</param>
public static string GetAttributeValue(string xmlFilePath, string xPath, string attributeName)
{
//创建根对象
XmlElement rootElement = CreateRootElement(xmlFilePath);

//返回XPath节点的属性值
return rootElement.SelectSingleNode(xPath).Attributes[attributeName].Value;
}
#endregion

#endregion

public static void SetValue(string xmlFilePath, string xPath, string newtext)
{
//string path = SysHelper.GetPath(xmlFilePath);
//var queryXML = from xmlLog in xelem.Descendants("msg_log")
// //所有名字为Bin的记录
// where xmlLog.Element("user").Value == "Bin"
// select xmlLog;

//foreach (XElement el in queryXML)
//{
// el.Element("user").Value = "LiuBin";//开始修改
//}
//xelem.Save(path);
}
}

View Code

public class FileDown
{
public FileDown()
{ }

/// <summary>
/// 参数为虚拟路径
/// </summary>
public static string FileNameExtension(string FileName)
{
return Path.GetExtension(MapPathFile(FileName));
}

/// <summary>
/// 获取物理地址
/// </summary>
public static string MapPathFile(string FileName)
{
return HttpContext.Current.Server.MapPath(FileName);
}

/// <summary>
/// 普通下载
/// </summary>
/// <param name="FileName">文件虚拟路径</param>
public static void DownLoadold(string FileName)
{
string destFileName = MapPathFile(FileName);
if (File.Exists(destFileName))
{
FileInfo fi = new FileInfo(destFileName);
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.Buffer = false;
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(Path.GetFileName(destFileName), System.Text.Encoding.UTF8));
HttpContext.Current.Response.AppendHeader("Content-Length", fi.Length.ToString());
HttpContext.Current.Response.ContentType = "application/octet-stream";
HttpContext.Current.Response.WriteFile(destFileName);
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.End();
}
}

/// <summary>
/// 分块下载
/// </summary>
/// <param name="FileName">文件虚拟路径</param>
public static void DownLoad(string FileName)
{
string filePath = MapPathFile(FileName);
long chunkSize = 204800; //指定块大小
byte[] buffer = new byte[chunkSize]; //建立一个200K的缓冲区
long dataToRead = 0; //已读的字节数
FileStream stream = null;
try
{
//打开文件
stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
dataToRead = stream.Length;

//添加Http头
HttpContext.Current.Response.ContentType = "application/octet-stream";
HttpContext.Current.Response.AddHeader("Content-Disposition", "attachement;filename=" + HttpUtility.UrlEncode(Path.GetFileName(filePath)));
HttpContext.Current.Response.AddHeader("Content-Length", dataToRead.ToString());

while (dataToRead > 0)
{
if (HttpContext.Current.Response.IsClientConnected)
{
int length = stream.Read(buffer, 0, Convert.ToInt32(chunkSize));
HttpContext.Current.Response.OutputStream.Write(buffer, 0, length);
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.Clear();
dataToRead -= length;
}
else
{
dataToRead = -1; //防止client失去连接
}
}
}
catch (Exception ex)
{
HttpContext.Current.Response.Write("Error:" + ex.Message);
}
finally
{
if (stream != null) stream.Close();
HttpContext.Current.Response.Close();
}
}

/// <summary>
/// 输出硬盘文件，提供下载支持大文件、续传、速度限制、资源占用小
/// </summary>
/// <param name="_Request">Page.Request对象</param>
/// <param name="_Response">Page.Response对象</param>
/// <param name="_fileName">下载文件名</param>
/// <param name="_fullPath">带文件名下载路径</param>
/// <param name="_speed">每秒允许下载的字节数</param>
/// <returns>返回是否成功</returns>
//---------------------------------------------------------------------
//调用：
// string FullPath=Server.MapPath("count.txt");
// ResponseFile(this.Request,this.Response,"count.txt",FullPath,100);
//---------------------------------------------------------------------
public static bool ResponseFile(HttpRequest _Request, HttpResponse _Response, string _fileName, string _fullPath, long _speed)
{
try
{
FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
BinaryReader br = new BinaryReader(myFile);
try
{
_Response.AddHeader("Accept-Ranges", "bytes");
_Response.Buffer = false;

long fileLength = myFile.Length;
long startBytes = 0;
int pack = 10240; //10K bytes
int sleep = (int)Math.Floor((double)(1000 * pack / _speed)) + 1;

if (_Request.Headers["Range"] != null)
{
_Response.StatusCode = 206;
string[] range = _Request.Headers["Range"].Split(new char[] { '=', '-' });
startBytes = Convert.ToInt64(range[1]);
}
_Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
if (startBytes != 0)
{
_Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength - 1, fileLength));
}

_Response.AddHeader("Connection", "Keep-Alive");
_Response.ContentType = "application/octet-stream";
_Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(_fileName, System.Text.Encoding.UTF8));

br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
int maxCount = (int)Math.Floor((double)((fileLength - startBytes) / pack)) + 1;

for (int i = 0; i < maxCount; i++)
{
if (_Response.IsClientConnected)
{
_Response.BinaryWrite(br.ReadBytes(pack));
Thread.Sleep(sleep);
}
else
{
i = maxCount;
}
}
}
catch
{
return false;
}
finally
{
br.Close();
myFile.Close();
}
}
catch
{
return false;
}
return true;
}
}

View Code

public class DownLoadHelper
{
#region ResponseFile 输出硬盘文件，提供下载支持大文件、续传、速度限制、资源占用小
/// <summary>
/// 输出硬盘文件，提供下载支持大文件、续传、速度限制、资源占用小
/// </summary>
/// <param name="_Request">Page.Request对象</param>
/// <param name="_Response">Page.Response对象</param>
/// <param name="_fileName">下载文件名</param>
/// <param name="_fullPath">带文件名下载路径</param>
/// <param name="_speed">每秒允许下载的字节数</param>
/// <returns>返回是否成功</returns>
public static bool ResponseFile(HttpRequest _Request, HttpResponse _Response, string _fileName, string _fullPath, long _speed)
{
try
{
FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
BinaryReader br = new BinaryReader(myFile);
try
{
_Response.AddHeader("Accept-Ranges", "bytes");
_Response.Buffer = false;
long fileLength = myFile.Length;
long startBytes = 0;

int pack = 10240; //10K bytes
//int sleep = 200; //每秒5次即5*10K bytes每秒
int sleep = (int)Math.Floor((double)(1000 * pack / _speed)) + 1;
if (_Request.Headers["Range"] != null)
{
_Response.StatusCode = 206;
string[] range = _Request.Headers["Range"].Split(new char[] { '=', '-' });
startBytes = Convert.ToInt64(range[1]);
}
_Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
if (startBytes != 0)
{
_Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength - 1, fileLength));
}
_Response.AddHeader("Connection", "Keep-Alive");
_Response.ContentType = "application/octet-stream";
_Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(_fileName, System.Text.Encoding.UTF8));

br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
int maxCount = (int)Math.Floor((double)((fileLength - startBytes) / pack)) + 1;

for (int i = 0; i < maxCount; i++)
{
if (_Response.IsClientConnected)
{
_Response.BinaryWrite(br.ReadBytes(pack));
Thread.Sleep(sleep);
}
else
{
i = maxCount;
}
}
}
catch
{
return false;
}
finally
{
br.Close();
myFile.Close();
}
}
catch
{
return false;
}
return true;
}
#endregion
}

View Code

/// <summary>
/// 字符串操作类
/// 1、GetStrArray(string str, char speater, bool toLower) 把字符串按照分隔符转换成 List
/// 2、GetStrArray(string str) 把字符串转按照, 分割换为数据
/// 3、GetArrayStr(List list, string speater) 把 List 按照分隔符组装成 string
/// 4、GetArrayStr(List list) 得到数组列表以逗号分隔的字符串
/// 5、GetArrayValueStr(Dictionary<int, int> list)得到数组列表以逗号分隔的字符串
/// 6、DelLastComma(string str)删除最后结尾的一个逗号
/// 7、DelLastChar(string str, string strchar)删除最后结尾的指定字符后的字符
/// 8、ToSBC(string input)转全角的函数(SBC case)
/// 9、ToDBC(string input)转半角的函数(SBC case)
/// 10、GetSubStringList(string o_str, char sepeater)把字符串按照指定分隔符装成 List 去除重复
/// 11、GetCleanStyle(string StrList, string SplitString)将字符串样式转换为纯字符串
/// 12、GetNewStyle(string StrList, string NewStyle, string SplitString, out string Error)将字符串转换为新样式
/// 13、SplitMulti(string str, string splitstr)分割字符串
/// 14、SqlSafeString(string String, bool IsDel)
/// </summary>
public class StringHelper
{
/// <summary>
/// 把字符串按照分隔符转换成 List
/// </summary>
/// <param name="str">源字符串</param>
/// <param name="speater">分隔符</param>
/// <param name="toLower">是否转换为小写</param>
/// <returns></returns>
public static List<string> GetStrArray(string str, char speater, bool toLower)
{
List<string> list = new List<string>();
string[] ss = str.Split(speater);
foreach (string s in ss)
{
if (!string.IsNullOrEmpty(s) && s != speater.ToString())
{
string strVal = s;
if (toLower)
{
strVal = s.ToLower();
}
list.Add(strVal);
}
}
return list;
}
/// <summary>
/// 把字符串转按照, 分割换为数据
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string[] GetStrArray(string str)
{
return str.Split(new Char[] { ',' });
}
/// <summary>
/// 把 List<string> 按照分隔符组装成 string
/// </summary>
/// <param name="list"></param>
/// <param name="speater"></param>
/// <returns></returns>
public static string GetArrayStr(List<string> list, string speater)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < list.Count; i++)
{
if (i == list.Count - 1)
{
sb.Append(list[i]);
}
else
{
sb.Append(list[i]);
sb.Append(speater);
}
}
return sb.ToString();
}
/// <summary>
/// 得到数组列表以逗号分隔的字符串
/// </summary>
/// <param name="list"></param>
/// <returns></returns>
public static string GetArrayStr(List<int> list)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < list.Count; i++)
{
if (i == list.Count - 1)
{
sb.Append(list[i].ToString());
}
else
{
sb.Append(list[i]);
sb.Append(",");
}
}
return sb.ToString();
}
/// <summary>
/// 得到数组列表以逗号分隔的字符串
/// </summary>
/// <param name="list"></param>
/// <returns></returns>
public static string GetArrayValueStr(Dictionary<int, int> list)
{
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair<int, int> kvp in list)
{
sb.Append(kvp.Value + ",");
}
if (list.Count > 0)
{
return DelLastComma(sb.ToString());
}
else
{
return "";
}
}

#region 删除最后一个字符之后的字符

/// <summary>
/// 删除最后结尾的一个逗号
/// </summary>
public static string DelLastComma(string str)
{
return str.Substring(0, str.LastIndexOf(","));
}

/// <summary>
/// 删除最后结尾的指定字符后的字符
/// </summary>
public static string DelLastChar(string str, string strchar)
{
return str.Substring(0, str.LastIndexOf(strchar));
}

#endregion

/// <summary>
/// 转全角的函数(SBC case)
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static string ToSBC(string input)
{
//半角转全角：
char[] c = input.ToCharArray();
for (int i = 0; i < c.Length; i++)
{
if (c[i] == 32)
{
c[i] = (char)12288;
continue;
}
if (c[i] < 127)
c[i] = (char)(c[i] + 65248);
}
return new string(c);
}

/// <summary>
/// 转半角的函数(SBC case)
/// </summary>
/// <param name="input">输入</param>
/// <returns></returns>
public static string ToDBC(string input)
{
char[] c = input.ToCharArray();
for (int i = 0; i < c.Length; i++)
{
if (c[i] == 12288)
{
c[i] = (char)32;
continue;
}
if (c[i] > 65280 && c[i] < 65375)
c[i] = (char)(c[i] - 65248);
}
return new string(c);
}

/// <summary>
/// 把字符串按照指定分隔符装成 List 去除重复
/// </summary>
/// <param name="o_str"></param>
/// <param name="sepeater"></param>
/// <returns></returns>
public static List<string> GetSubStringList(string o_str, char sepeater)
{
List<string> list = new List<string>();
string[] ss = o_str.Split(sepeater);
foreach (string s in ss)
{
if (!string.IsNullOrEmpty(s) && s != sepeater.ToString())
{
list.Add(s);
}
}
return list;
}

#region 将字符串样式转换为纯字符串
/// <summary>
/// 将字符串样式转换为纯字符串
/// </summary>
/// <param name="StrList"></param>
/// <param name="SplitString"></param>
/// <returns></returns>
public static string GetCleanStyle(string StrList, string SplitString)
{
string RetrunValue = "";
//如果为空，返回空值
if (StrList == null)
{
RetrunValue = "";
}
else
{
//返回去掉分隔符
string NewString = "";
NewString = StrList.Replace(SplitString, "");
RetrunValue = NewString;
}
return RetrunValue;
}
#endregion

#region 将字符串转换为新样式
/// <summary>
/// 将字符串转换为新样式
/// </summary>
/// <param name="StrList"></param>
/// <param name="NewStyle"></param>
/// <param name="SplitString"></param>
/// <param name="Error"></param>
/// <returns></returns>
public static string GetNewStyle(string StrList, string NewStyle, string SplitString, out string Error)
{
string ReturnValue = "";
//如果输入空值，返回空，并给出错误提示
if (StrList == null)
{
ReturnValue = "";
Error = "请输入需要划分格式的字符串";
}
else
{
//检查传入的字符串长度和样式是否匹配,如果不匹配，则说明使用错误。给出错误信息并返回空值
int strListLength = StrList.Length;
int NewStyleLength = GetCleanStyle(NewStyle, SplitString).Length;
if (strListLength != NewStyleLength)
{
ReturnValue = "";
Error = "样式格式的长度与输入的字符长度不符，请重新输入";
}
else
{
//检查新样式中分隔符的位置
string Lengstr = "";
for (int i = 0; i < NewStyle.Length; i++)
{
if (NewStyle.Substring(i, 1) == SplitString)
{
Lengstr = Lengstr + "," + i;
}
}
if (Lengstr != "")
{
Lengstr = Lengstr.Substring(1);
}
//将分隔符放在新样式中的位置
string[] str = Lengstr.Split(',');
foreach (string bb in str)
{
StrList = StrList.Insert(int.Parse(bb), SplitString);
}
//给出最后的结果
ReturnValue = StrList;
//因为是正常的输出，没有错误
Error = "";
}
}
return ReturnValue;
}
#endregion

/// <summary>
/// 分割字符串
/// </summary>
/// <param name="str"></param>
/// <param name="splitstr"></param>
/// <returns></returns>
public static string[] SplitMulti(string str, string splitstr)
{
string[] strArray = null;
if ((str != null) && (str != ""))
{
strArray = new Regex(splitstr).Split(str);
}
return strArray;
}
public static string SqlSafeString(string String, bool IsDel)
{
if (IsDel)
{
String = String.Replace("'", "");
String = String.Replace(""", "");
return String;
}
String = String.Replace("'", "'");
String = String.Replace(""", """);
return String;
}

#region 获取正确的Id，如果不是正整数，返回0
/// <summary>
/// 获取正确的Id，如果不是正整数，返回0
/// </summary>
/// <param name="_value"></param>
/// <returns>返回正确的整数ID，失败返回0</returns>
public static int StrToId(string _value)
{
if (IsNumberId(_value))
return int.Parse(_value);
else
return 0;
}
#endregion
#region 检查一个字符串是否是纯数字构成的，一般用于查询字符串参数的有效性验证。
/// <summary>
/// 检查一个字符串是否是纯数字构成的，一般用于查询字符串参数的有效性验证。(0除外)
/// </summary>
/// <param name="_value">需验证的字符串。。</param>
/// <returns>是否合法的bool值。</returns>
public static bool IsNumberId(string _value)
{
return QuickValidate("^[1-9]*[0-9]*$", _value);
}
#endregion
#region 快速验证一个字符串是否符合指定的正则表达式。
/// <summary>
/// 快速验证一个字符串是否符合指定的正则表达式。
/// </summary>
/// <param name="_express">正则表达式的内容。</param>
/// <param name="_value">需验证的字符串。</param>
/// <returns>是否合法的bool值。</returns>
public static bool QuickValidate(string _express, string _value)
{
if (_value == null) return false;
Regex myRegex = new Regex(_express);
if (_value.Length == 0)
{
return false;
}
return myRegex.IsMatch(_value);
}
#endregion

#region 根据配置对指定字符串进行 MD5 加密
/// <summary>
/// 根据配置对指定字符串进行 MD5 加密
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static string GetMD5(string s)
{
//md5加密
s = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(s, "md5").ToString();

return s.ToLower().Substring(8, 16);
}
#endregion

#region 得到字符串长度，一个汉字长度为2
/// <summary>
/// 得到字符串长度，一个汉字长度为2
/// </summary>
/// <param name="inputString">参数字符串</param>
/// <returns></returns>
public static int StrLength(string inputString)
{
System.Text.ASCIIEncoding ascii = new System.Text.ASCIIEncoding();
int tempLen = 0;
byte[] s = ascii.GetBytes(inputString);
for (int i = 0; i < s.Length; i++)
{
if ((int)s[i] == 63)
tempLen += 2;
else
tempLen += 1;
}
return tempLen;
}
#endregion

#region 截取指定长度字符串
/// <summary>
/// 截取指定长度字符串
/// </summary>
/// <param name="inputString">要处理的字符串</param>
/// <param name="len">指定长度</param>
/// <returns>返回处理后的字符串</returns>
public static string ClipString(string inputString, int len)
{
bool isShowFix = false;
if (len % 2 == 1)
{
isShowFix = true;
len--;
}
System.Text.ASCIIEncoding ascii = new System.Text.ASCIIEncoding();
int tempLen = 0;
string tempString = "";
byte[] s = ascii.GetBytes(inputString);
for (int i = 0; i < s.Length; i++)
{
if ((int)s[i] == 63)
tempLen += 2;
else
tempLen += 1;

try
{
tempString += inputString.Substring(i, 1);
}
catch
{
break;
}

if (tempLen > len)
break;
}

byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString);
if (isShowFix && mybyte.Length > len)
tempString += "…";
return tempString;
}
#endregion

#region HTML转行成TEXT
/// <summary>
/// HTML转行成TEXT
/// </summary>
/// <param name="strHtml"></param>
/// <returns></returns>
public static string HtmlToTxt(string strHtml)
{
string[] aryReg ={
@"<script[^>]*?>.*?</script>",
@"<(/s*)?!?((w+:)?w+)(w+(s*=?s*(([""'])(\[""'tbnr]|[^7])*?7|w+)|.{0})|s)*?(/s*)?>",
@"([ ])[s]+",
@"&(quot|#34);",
@"&(amp|#38);",
@"&(lt|#60);",
@"&(gt|#62);",
@"&(nbsp|#160);",
@"&(iexcl|#161);",
@"&(cent|#162);",
@"&(pound|#163);",
@"&(copy|#169);",
@"&#(d+);",
@"-->",
@"<!--.* "
};

string newReg = aryReg[0];
string strOutput = strHtml;
for (int i = 0; i < aryReg.Length; i++)
{
Regex regex = new Regex(aryReg[i], RegexOptions.IgnoreCase);
strOutput = regex.Replace(strOutput, string.Empty);
}

strOutput.Replace("<", "");
strOutput.Replace(">", "");
strOutput.Replace(" ", "");

return strOutput;
}
#endregion

#region 判断对象是否为空
/// <summary>
/// 判断对象是否为空，为空返回true
/// </summary>
/// <typeparam name="T">要验证的对象的类型</typeparam>
/// <param name="data">要验证的对象</param>
public static bool IsNullOrEmpty<T>(T data)
{
//如果为null
if (data == null)
{
return true;
}

//如果为""
if (data.GetType() == typeof(String))
{
if (string.IsNullOrEmpty(data.ToString().Trim()))
{
return true;
}
}

//如果为DBNull
if (data.GetType() == typeof(DBNull))
{
return true;
}

//不为空
return false;
}

/// <summary>
/// 判断对象是否为空，为空返回true
/// </summary>
/// <param name="data">要验证的对象</param>
public static bool IsNullOrEmpty(object data)
{
//如果为null
if (data == null)
{
return true;
}

//如果为""
if (data.GetType() == typeof(String))
{
if (string.IsNullOrEmpty(data.ToString().Trim()))
{
return true;
}
}

//如果为DBNull
if (data.GetType() == typeof(DBNull))
{
return true;
}

//不为空
return false;
}
#endregion
}

View Code

/// <summary>
/// 客户端脚本输出
/// </summary>
public class JsHelper
{
/// <summary>
/// 弹出信息,并跳转指定页面。
/// </summary>
public static void AlertAndRedirect(string message, string toURL)
{
string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>";
HttpContext.Current.Response.Write(string.Format(js, message, toURL));
HttpContext.Current.Response.End();
}

/// <summary>
/// 弹出信息,并返回历史页面
/// </summary>
public static void AlertAndGoHistory(string message, int value)
{
string js = @"<Script language='JavaScript'>alert('{0}');history.go({1});</Script>";
HttpContext.Current.Response.Write(string.Format(js, message, value));
HttpContext.Current.Response.End();
}

/// <summary>
/// 直接跳转到指定的页面
/// </summary>
public static void Redirect(string toUrl)
{
string js = @"<script language=javascript>window.location.replace('{0}')</script>";
HttpContext.Current.Response.Write(string.Format(js, toUrl));
}

/// <summary>
/// 弹出信息并指定到父窗口
/// </summary>
public static void AlertAndParentUrl(string message, string toURL)
{
string js = "<script language=javascript>alert('{0}');window.top.location.replace('{1}')</script>";
HttpContext.Current.Response.Write(string.Format(js, message, toURL));
}

/// <summary>
/// 返回到父窗口
/// </summary>
public static void ParentRedirect(string ToUrl)
{
string js = "<script language=javascript>window.top.location.replace('{0}')</script>";
HttpContext.Current.Response.Write(string.Format(js, ToUrl));
}

/// <summary>
/// 返回历史页面
/// </summary>
public static void BackHistory(int value)
{
string js = @"<Script language='JavaScript'>history.go({0});</Script>";
HttpContext.Current.Response.Write(string.Format(js, value));
HttpContext.Current.Response.End();
}

/// <summary>
/// 弹出信息
/// </summary>
public static void Alert(string message)
{
string js = "<script language=javascript>alert('{0}');</script>";
HttpContext.Current.Response.Write(string.Format(js, message));
}

/// <summary>
/// 注册脚本块
/// </summary>
public static void RegisterScriptBlock(System.Web.UI.Page page, string _ScriptString)
{
page.ClientScript.RegisterStartupScript(page.GetType(), "scriptblock", "<script type='text/javascript'>" + _ScriptString + "</script>");
}
}

View Code

public class CookieHelper
{
/// <summary>
/// 清除指定Cookie
/// </summary>
/// <param name="cookiename">cookiename</param>
public static void ClearCookie(string cookiename)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiename];
if (cookie != null)
{
cookie.Expires = DateTime.Now.AddYears(-3);
HttpContext.Current.Response.Cookies.Add(cookie);
}
}
/// <summary>
/// 获取指定Cookie值
/// </summary>
/// <param name="cookiename">cookiename</param>
/// <returns></returns>
public static string GetCookieValue(string cookiename)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiename];
string str = string.Empty;
if (cookie != null)
{
str = cookie.Value;
}
return str;
}
/// <summary>
/// 添加一个Cookie（24小时过期）
/// </summary>
/// <param name="cookiename"></param>
/// <param name="cookievalue"></param>
public static void SetCookie(string cookiename, string cookievalue)
{
SetCookie(cookiename, cookievalue, DateTime.Now.AddDays(1.0));
}
/// <summary>
/// 添加一个Cookie
/// </summary>
/// <param name="cookiename">cookie名</param>
/// <param name="cookievalue">cookie值</param>
/// <param name="expires">过期时间 DateTime</param>
public static void SetCookie(string cookiename, string cookievalue, DateTime expires)
{
HttpCookie cookie = new HttpCookie(cookiename)
{
Value = cookievalue,
Expires = expires
};
HttpContext.Current.Response.Cookies.Add(cookie);
}
}

View Code

public static class SessionHelper2
{
/// <summary>
/// 添加Session，调动有效期为20分钟
/// </summary>
/// <param name="strSessionName">Session对象名称</param>
/// <param name="strValue">Session值</param>
public static void Add(string strSessionName, string strValue)
{
HttpContext.Current.Session[strSessionName] = strValue;
HttpContext.Current.Session.Timeout = 20;
}

/// <summary>
/// 添加Session，调动有效期为20分钟
/// </summary>
/// <param name="strSessionName">Session对象名称</param>
/// <param name="strValues">Session值数组</param>
public static void Adds(string strSessionName, string[] strValues)
{
HttpContext.Current.Session[strSessionName] = strValues;
HttpContext.Current.Session.Timeout = 20;
}

/// <summary>
/// 添加Session
/// </summary>
/// <param name="strSessionName">Session对象名称</param>
/// <param name="strValue">Session值</param>
/// <param name="iExpires">调动有效期（分钟）</param>
public static void Add(string strSessionName, string strValue, int iExpires)
{
HttpContext.Current.Session[strSessionName] = strValue;
HttpContext.Current.Session.Timeout = iExpires;
}

/// <summary>
/// 添加Session
/// </summary>
/// <param name="strSessionName">Session对象名称</param>
/// <param name="strValues">Session值数组</param>
/// <param name="iExpires">调动有效期（分钟）</param>
public static void Adds(string strSessionName, string[] strValues, int iExpires)
{
HttpContext.Current.Session[strSessionName] = strValues;
HttpContext.Current.Session.Timeout = iExpires;
}

/// <summary>
/// 读取某个Session对象值
/// </summary>
/// <param name="strSessionName">Session对象名称</param>
/// <returns>Session对象值</returns>
public static string Get(string strSessionName)
{
if (HttpContext.Current.Session[strSessionName] == null)
{
return null;
}
else
{
return HttpContext.Current.Session[strSessionName].ToString();
}
}

/// <summary>
/// 读取某个Session对象值数组
/// </summary>
/// <param name="strSessionName">Session对象名称</param>
/// <returns>Session对象值数组</returns>
public static string[] Gets(string strSessionName)
{
if (HttpContext.Current.Session[strSessionName] == null)
{
return null;
}
else
{
return (string[])HttpContext.Current.Session[strSessionName];
}
}

/// <summary>
/// 删除某个Session对象
/// </summary>
/// <param name="strSessionName">Session对象名称</param>
public static void Del(string strSessionName)
{
HttpContext.Current.Session[strSessionName] = null;
}
}

View Code

public class CacheHelper
{
/// <summary>
/// 获取数据缓存
/// </summary>
/// <param name="CacheKey">键</param>
public static object GetCache(string CacheKey)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
return objCache[CacheKey];
}

/// <summary>
/// 设置数据缓存
/// </summary>
public static void SetCache(string CacheKey, object objObject)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject);
}

/// <summary>
/// 设置数据缓存
/// </summary>
public static void SetCache(string CacheKey, object objObject, TimeSpan Timeout)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject, null, DateTime.MaxValue, Timeout, System.Web.Caching.CacheItemPriority.NotRemovable, null);
}

/// <summary>
/// 设置数据缓存
/// </summary>
public static void SetCache(string CacheKey, object objObject, DateTime absoluteExpiration, TimeSpan slidingExpiration)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject, null, absoluteExpiration, slidingExpiration);
}

/// <summary>
/// 移除指定数据缓存
/// </summary>
public static void RemoveAllCache(string CacheKey)
{
System.Web.Caching.Cache _cache = HttpRuntime.Cache;
_cache.Remove(CacheKey);
}

/// <summary>
/// 移除全部缓存
/// </summary>
public static void RemoveAllCache()
{
System.Web.Caching.Cache _cache = HttpRuntime.Cache;
IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();
while (CacheEnum.MoveNext())
{
_cache.Remove(CacheEnum.Key.ToString());
}
}
}

View Code

/// <summary>
/// 网络操作相关的类
/// </summary>
public class NetHelper
{
#region 检查设置的IP地址是否正确，返回正确的IP地址
/// <summary>
/// 检查设置的IP地址是否正确，并返回正确的IP地址,无效IP地址返回"-1"。
/// </summary>
/// <param name="ip">设置的IP地址</param>
//public static string GetValidIP(string ip)
//{
// if (PageValidate.IsIP(ip))
// {
// return ip;
// }
// else
// {
// return "-1";
// }
//}
#endregion

#region 检查设置的端口号是否正确，返回正确的端口号
/// <summary>
/// 检查设置的端口号是否正确，并返回正确的端口号,无效端口号返回-1。
/// </summary>
/// <param name="port">设置的端口号</param>
public static int GetValidPort(string port)
{
//声明返回的正确端口号
int validPort = -1;
//最小有效端口号
const int MINPORT = 0;
//最大有效端口号
const int MAXPORT = 65535;

//检测端口号
try
{
//传入的端口号为空则抛出异常
if (port == "")
{
throw new Exception("端口号不能为空！");
}

//检测端口范围
if ((Convert.ToInt32(port) < MINPORT) || (Convert.ToInt32(port) > MAXPORT))
{
throw new Exception("端口号范围无效！");
}

//为端口号赋值
validPort = Convert.ToInt32(port);
}
catch (Exception ex)
{
string errMessage = ex.Message;
}
return validPort;
}
#endregion

#region 将字符串形式的IP地址转换成IPAddress对象
/// <summary>
/// 将字符串形式的IP地址转换成IPAddress对象
/// </summary>
/// <param name="ip">字符串形式的IP地址</param>
public static IPAddress StringToIPAddress(string ip)
{
return IPAddress.Parse(ip);
}
#endregion

#region 获取本机的计算机名
/// <summary>
/// 获取本机的计算机名
/// </summary>
public static string LocalHostName
{
get
{
return Dns.GetHostName();
}
}
#endregion

#region 获取本机的局域网IP
/// <summary>
/// 获取本机的局域网IP
/// </summary>
public static string LANIP
{
get
{
//获取本机的IP列表,IP列表中的第一项是局域网IP，第二项是广域网IP
IPAddress[] addressList = Dns.GetHostEntry(Dns.GetHostName()).AddressList;

//如果本机IP列表为空，则返回空字符串
if (addressList.Length < 1)
{
return "";
}

//返回本机的局域网IP
return addressList[0].ToString();
}
}
#endregion

#region 获取本机在Internet网络的广域网IP
/// <summary>
/// 获取本机在Internet网络的广域网IP
/// </summary>
public static string WANIP
{
get
{
//获取本机的IP列表,IP列表中的第一项是局域网IP，第二项是广域网IP
IPAddress[] addressList = Dns.GetHostEntry(Dns.GetHostName()).AddressList;

//如果本机IP列表小于2，则返回空字符串
if (addressList.Length < 2)
{
return "";
}

//返回本机的广域网IP
return addressList[1].ToString();
}
}
#endregion

#region 获取远程客户机的IP地址
/// <summary>
/// 获取远程客户机的IP地址
/// </summary>
/// <param name="clientSocket">客户端的socket对象</param>
public static string GetClientIP(Socket clientSocket)
{
IPEndPoint client = (IPEndPoint)clientSocket.RemoteEndPoint;
return client.Address.ToString();
}
#endregion

#region 创建一个IPEndPoint对象
/// <summary>
/// 创建一个IPEndPoint对象
/// </summary>
/// <param name="ip">IP地址</param>
/// <param name="port">端口号</param>
public static IPEndPoint CreateIPEndPoint(string ip, int port)
{
IPAddress ipAddress = StringToIPAddress(ip);
return new IPEndPoint(ipAddress, port);
}
#endregion

#region 创建一个TcpListener对象
/// <summary>
/// 创建一个自动分配IP和端口的TcpListener对象
/// </summary>
public static TcpListener CreateTcpListener()
{
//创建一个自动分配的网络节点
IPAddress ipAddress = IPAddress.Any;
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 0);

return new TcpListener(localEndPoint);
}
/// <summary>
/// 创建一个TcpListener对象
/// </summary>
/// <param name="ip">IP地址</param>
/// <param name="port">端口</param>
public static TcpListener CreateTcpListener(string ip, int port)
{
//创建一个网络节点
IPAddress ipAddress = StringToIPAddress(ip);
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, port);

return new TcpListener(localEndPoint);
}
#endregion

#region 创建一个基于TCP协议的Socket对象
/// <summary>
/// 创建一个基于TCP协议的Socket对象
/// </summary>
public static Socket CreateTcpSocket()
{
return new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
#endregion

#region 创建一个基于UDP协议的Socket对象
/// <summary>
/// 创建一个基于UDP协议的Socket对象
/// </summary>
public static Socket CreateUdpSocket()
{
return new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
}
#endregion

#region 获取本地终结点

#region 获取TcpListener对象的本地终结点
/// <summary>
/// 获取TcpListener对象的本地终结点
/// </summary>
/// <param name="tcpListener">TcpListener对象</param>
public static IPEndPoint GetLocalPoint(TcpListener tcpListener)
{
return (IPEndPoint)tcpListener.LocalEndpoint;
}

/// <summary>
/// 获取TcpListener对象的本地终结点的IP地址
/// </summary>
/// <param name="tcpListener">TcpListener对象</param>
public static string GetLocalPoint_IP(TcpListener tcpListener)
{
IPEndPoint localEndPoint = (IPEndPoint)tcpListener.LocalEndpoint;
return localEndPoint.Address.ToString();
}

/// <summary>
/// 获取TcpListener对象的本地终结点的端口号
/// </summary>
/// <param name="tcpListener">TcpListener对象</param>
public static int GetLocalPoint_Port(TcpListener tcpListener)
{
IPEndPoint localEndPoint = (IPEndPoint)tcpListener.LocalEndpoint;
return localEndPoint.Port;
}
#endregion

#region 获取Socket对象的本地终结点
/// <summary>
/// 获取Socket对象的本地终结点
/// </summary>
/// <param name="socket">Socket对象</param>
public static IPEndPoint GetLocalPoint(Socket socket)
{
return (IPEndPoint)socket.LocalEndPoint;
}

/// <summary>
/// 获取Socket对象的本地终结点的IP地址
/// </summary>
/// <param name="socket">Socket对象</param>
public static string GetLocalPoint_IP(Socket socket)
{
IPEndPoint localEndPoint = (IPEndPoint)socket.LocalEndPoint;
return localEndPoint.Address.ToString();
}

/// <summary>
/// 获取Socket对象的本地终结点的端口号
/// </summary>
/// <param name="socket">Socket对象</param>
public static int GetLocalPoint_Port(Socket socket)
{
IPEndPoint localEndPoint = (IPEndPoint)socket.LocalEndPoint;
return localEndPoint.Port;
}
#endregion

#endregion

#region 绑定终结点
/// <summary>
/// 绑定终结点
/// </summary>
/// <param name="socket">Socket对象</param>
/// <param name="endPoint">要绑定的终结点</param>
public static void BindEndPoint(Socket socket, IPEndPoint endPoint)
{
if (!socket.IsBound)
{
socket.Bind(endPoint);
}
}

/// <summary>
/// 绑定终结点
/// </summary>
/// <param name="socket">Socket对象</param>
/// <param name="ip">服务器IP地址</param>
/// <param name="port">服务器端口</param>
public static void BindEndPoint(Socket socket, string ip, int port)
{
//创建终结点
IPEndPoint endPoint = CreateIPEndPoint(ip, port);

//绑定终结点
if (!socket.IsBound)
{
socket.Bind(endPoint);
}
}
#endregion

#region 指定Socket对象执行监听
/// <summary>
/// 指定Socket对象执行监听，默认允许的最大挂起连接数为100
/// </summary>
/// <param name="socket">执行监听的Socket对象</param>
/// <param name="port">监听的端口号</param>
public static void StartListen(Socket socket, int port)
{
//创建本地终结点
IPEndPoint localPoint = CreateIPEndPoint(NetHelper.LocalHostName, port);

//绑定到本地终结点
BindEndPoint(socket, localPoint);

//开始监听
socket.Listen(100);
}

/// <summary>
/// 指定Socket对象执行监听
/// </summary>
/// <param name="socket">执行监听的Socket对象</param>
/// <param name="port">监听的端口号</param>
/// <param name="maxConnection">允许的最大挂起连接数</param>
public static void StartListen(Socket socket, int port, int maxConnection)
{
//创建本地终结点
IPEndPoint localPoint = CreateIPEndPoint(NetHelper.LocalHostName, port);

//绑定到本地终结点
BindEndPoint(socket, localPoint);

//开始监听
socket.Listen(maxConnection);
}

/// <summary>
/// 指定Socket对象执行监听
/// </summary>
/// <param name="socket">执行监听的Socket对象</param>
/// <param name="ip">监听的IP地址</param>
/// <param name="port">监听的端口号</param>
/// <param name="maxConnection">允许的最大挂起连接数</param>
public static void StartListen(Socket socket, string ip, int port, int maxConnection)
{
//绑定到本地终结点
BindEndPoint(socket, ip, port);

//开始监听
socket.Listen(maxConnection);
}
#endregion

#region 连接到基于TCP协议的服务器
/// <summary>
/// 连接到基于TCP协议的服务器,连接成功返回true，否则返回false
/// </summary>
/// <param name="socket">Socket对象</param>
/// <param name="ip">服务器IP地址</param>
/// <param name="port">服务器端口号</param>
public static bool Connect(Socket socket, string ip, int port)
{
try
{
//连接服务器
socket.Connect(ip, port);

//检测连接状态
return socket.Poll(-1, SelectMode.SelectWrite);
}
catch (SocketException ex)
{
throw new Exception(ex.Message);
//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
}
}
#endregion

#region 以同步方式发送消息
/// <summary>
/// 以同步方式向指定的Socket对象发送消息
/// </summary>
/// <param name="socket">socket对象</param>
/// <param name="msg">发送的消息</param>
public static void SendMsg(Socket socket, byte[] msg)
{
//发送消息
socket.Send(msg, msg.Length, SocketFlags.None);
}

/// <summary>
/// 使用UTF8编码格式以同步方式向指定的Socket对象发送消息
/// </summary>
/// <param name="socket">socket对象</param>
/// <param name="msg">发送的消息</param>
public static void SendMsg(Socket socket, string msg)
{
//将字符串消息转换成字符数组
byte[] buffer = ConvertHelper.StringToBytes(msg, Encoding.Default);

//发送消息
socket.Send(buffer, buffer.Length, SocketFlags.None);
}
#endregion

#region 以同步方式接收消息
/// <summary>
/// 以同步方式接收消息
/// </summary>
/// <param name="socket">socket对象</param>
/// <param name="buffer">接收消息的缓冲区</param>
public static void ReceiveMsg(Socket socket, byte[] buffer)
{
socket.Receive(buffer);
}

/// <summary>
/// 以同步方式接收消息，并转换为UTF8编码格式的字符串,使用5000字节的默认缓冲区接收。
/// </summary>
/// <param name="socket">socket对象</param>
public static string ReceiveMsg(Socket socket)
{
//定义接收缓冲区
byte[] buffer = new byte[5000];
//接收数据，获取接收到的字节数
int receiveCount = socket.Receive(buffer);

//定义临时缓冲区
byte[] tempBuffer = new byte[receiveCount];
//将接收到的数据写入临时缓冲区
Buffer.BlockCopy(buffer, 0, tempBuffer, 0, receiveCount);
//转换成字符串，并将其返回
return ConvertHelper.BytesToString(tempBuffer, Encoding.Default);
}
#endregion

#region 关闭基于Tcp协议的Socket对象
/// <summary>
/// 关闭基于Tcp协议的Socket对象
/// </summary>
/// <param name="socket">要关闭的Socket对象</param>
public static void Close(Socket socket)
{
try
{
//禁止Socket对象接收和发送数据
socket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
throw ex;
}
finally
{
//关闭Socket对象
socket.Close();
}
}
#endregion

#region 发送电子邮件
/// <summary>
/// 发送电子邮件,所有SMTP配置信息均在config配置文件中system.net节设置.
/// </summary>
/// <param name="receiveEmail">接收电子邮件的地址</param>
/// <param name="msgSubject">电子邮件的标题</param>
/// <param name="msgBody">电子邮件的正文</param>
/// <param name="IsEnableSSL">是否开启SSL</param>
public static bool SendEmail(string receiveEmail, string msgSubject, string msgBody, bool IsEnableSSL)
{
//创建电子邮件对象
MailMessage email = new MailMessage();
//设置接收人的电子邮件地址
email.To.Add(receiveEmail);
//设置邮件的标题
email.Subject = msgSubject;
//设置邮件的正文
email.Body = msgBody;
//设置邮件为HTML格式
email.IsBodyHtml = true;

//创建SMTP客户端，将自动从配置文件中获取SMTP服务器信息
SmtpClient smtp = new SmtpClient();
//开启SSL
smtp.EnableSsl = IsEnableSSL;

try
{
//发送电子邮件
smtp.Send(email);

return true;
}
catch (Exception ex)
{
throw ex;
}
}

#endregion
}

View Code

#region 序列化
public class Serialize
{
/// <summary>
/// 序列化为对象
/// </summary>
/// <param name="objname"></param>
/// <param name="obj"></param>
public static void BinarySerialize(string objname,object obj)
{
try
{
string filename = objname + ".Binary";
if(System.IO.File.Exists(filename))
System.IO.File.Delete(filename);
using (FileStream fileStream = new FileStream(filename, FileMode.Create))
{
// 用二进制格式序列化
BinaryFormatter binaryFormatter = new BinaryFormatter();
binaryFormatter.Serialize(fileStream, obj);
fileStream.Close();
}
}
catch(Exception ex)
{
throw new Exception(ex.Message);
}
}

/// <summary>
/// 从二进制文件中反序列化
/// </summary>
/// <param name="objname"></param>
/// <returns></returns>
public static object BinaryDeserialize(string objname)
{
System.Runtime.Serialization.IFormatter formatter = new BinaryFormatter();
//二进制格式反序列化
object obj;
string filename = objname + ".Binary";
if(!System.IO.File.Exists(filename))
throw new Exception("在反序列化之前,请先序列化");
using (Stream stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
obj = formatter.Deserialize(stream);
stream.Close();
}
//using (FileStream fs = new FileStream(filename, FileMode.Open))
//{
// BinaryFormatter formatter = new BinaryFormatter();
// object obj = formatter.Deserialize(fs);
//}
return obj;

}

/// <summary>
/// 序列化为soap 即xml
/// </summary>
/// <param name="objname"></param>
/// <returns></returns>
public static void SoapSerialize(string objname,object obj)
{
try
{
string filename=objname+".Soap";
if(System.IO.File.Exists(filename))
System.IO.File.Delete(filename);
using (FileStream fileStream = new FileStream(filename, FileMode.Create))
{
// 序列化为Soap
SoapFormatter formatter = new SoapFormatter();
formatter.Serialize(fileStream, obj);
fileStream.Close();
}

}
catch(Exception ex)
{
throw new Exception(ex.Message);
}
}

/// <summary>
/// 反序列对象
/// </summary>
/// <param name="objname"></param>
public static object SoapDeserialize(string objname)
{
object obj;
System.Runtime.Serialization.IFormatter formatter = new SoapFormatter();
string filename=objname+".Soap";
if (!System.IO.File.Exists(filename))
throw new Exception("对反序列化之前,请先序列化");
//Soap格式反序列化
using (Stream stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
obj = formatter.Deserialize(stream);
stream.Close();
}
return obj;
}

public static void XmlSerialize(string objname,object obj)
{

try
{
string filename=objname+".xml";
if(System.IO.File.Exists(filename))
System.IO.File.Delete(filename);
using (FileStream fileStream = new FileStream(filename, FileMode.Create))
{
// 序列化为xml
XmlSerializer formatter = new XmlSerializer(typeof(Car));
formatter.Serialize(fileStream, obj);
fileStream.Close();
}
}
catch(Exception ex)
{
throw new Exception(ex.Message);
}

}

/// <summary>
/// 从xml序列中反序列化
/// </summary>
/// <param name="objname"></param>
/// <returns></returns>
public static object XmlDeserailize(string objname)
{
// System.Runtime.Serialization.IFormatter formatter = new XmlSerializer(typeof(Car));
string filename=objname+".xml";
object obj;
if (!System.IO.File.Exists(filename))
throw new Exception("对反序列化之前,请先序列化");
//Xml格式反序列化
using (Stream stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
XmlSerializer formatter = new XmlSerializer(typeof(Car));
obj = (Car)formatter.Deserialize(stream);
stream.Close();
}
return obj;
}
}
#endregion

#region 要序列化的类
[Serializable]
public class Car
{
private string _Price;
private string _Owner;
private string m_filename;

[XmlElement(ElementName = "Price")]
public string Price
{
get { return this._Price; }
set { this._Price = value; }
}

[XmlElement(ElementName = "Owner")]
public string Owner
{
get { return this._Owner; }
set { this._Owner = value; }
}

public string Filename
{
get
{
return m_filename;
}
set
{
m_filename = value;
}
}

public Car(string o, string p)
{
this.Price = p;
this.Owner = o;
}

public Car()
{

}
}
#endregion

#region 调用示例
public class Demo
{
public void DemoFunction()
{
//序列化
Car car = new Car("chenlin", "120万");
Serialize.BinarySerialize("Binary序列化", car);
Serialize.SoapSerialize("Soap序列化", car);
Serialize.XmlSerialize("XML序列化", car);
//反序列化
Car car2 = (Car)Serialize.BinaryDeserialize("Binary序列化");
car2 = (Car)Serialize.SoapDeserialize("Soap序列化");
car2 = (Car)Serialize.XmlDeserailize("XML序列化");
}
}
#endregion

View Code

/// <summary>
/// 验证码类
/// </summary>
public class Rand
{
#region 生成随机数字
/// <summary>
/// 生成随机数字
/// </summary>
/// <param name="length">生成长度</param>
public static string Number(int Length)
{
return Number(Length, false);
}

/// <summary>
/// 生成随机数字
/// </summary>
/// <param name="Length">生成长度</param>
/// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
public static string Number(int Length, bool Sleep)
{
if (Sleep) System.Threading.Thread.Sleep(3);
string result = "";
System.Random random = new Random();
for (int i = 0; i < Length; i++)
{
result += random.Next(10).ToString();
}
return result;
}
#endregion

#region 生成随机字母与数字
/// <summary>
/// 生成随机字母与数字
/// </summary>
/// <param name="IntStr">生成长度</param>
public static string Str(int Length)
{
return Str(Length, false);
}

/// <summary>
/// 生成随机字母与数字
/// </summary>
/// <param name="Length">生成长度</param>
/// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
public static string Str(int Length, bool Sleep)
{
if (Sleep) System.Threading.Thread.Sleep(3);
char[] Pattern = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z' };
string result = "";
int n = Pattern.Length;
System.Random random = new Random(~unchecked((int)DateTime.Now.Ticks));
for (int i = 0; i < Length; i++)
{
int rnd = random.Next(0, n);
result += Pattern[rnd];
}
return result;
}
#endregion

#region 生成随机纯字母随机数
/// <summary>
/// 生成随机纯字母随机数
/// </summary>
/// <param name="IntStr">生成长度</param>
public static string Str_char(int Length)
{
return Str_char(Length, false);
}

/// <summary>
/// 生成随机纯字母随机数
/// </summary>
/// <param name="Length">生成长度</param>
/// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
public static string Str_char(int Length, bool Sleep)
{
if (Sleep) System.Threading.Thread.Sleep(3);
char[] Pattern = new char[] { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z' };
string result = "";
int n = Pattern.Length;
System.Random random = new Random(~unchecked((int)DateTime.Now.Ticks));
for (int i = 0; i < Length; i++)
{
int rnd = random.Next(0, n);
result += Pattern[rnd];
}
return result;
}
#endregion
}

/// <summary>
/// 验证图片类
/// </summary>
public class YZMHelper
{
#region 私有字段
private string text;
private Bitmap image;
private int letterCount = 4; //验证码位数
private int letterWidth = 16; //单个字体的宽度范围
private int letterHeight = 20; //单个字体的高度范围
private static byte[] randb = new byte[4];
private static RNGCryptoServiceProvider rand = new RNGCryptoServiceProvider();
private Font[] fonts =
{
new Font(new FontFamily("Times New Roman"),10 +Next(1),System.Drawing.FontStyle.Regular),
new Font(new FontFamily("Georgia"), 10 + Next(1),System.Drawing.FontStyle.Regular),
new Font(new FontFamily("Arial"), 10 + Next(1),System.Drawing.FontStyle.Regular),
new Font(new FontFamily("Comic Sans MS"), 10 + Next(1),System.Drawing.FontStyle.Regular)
};
#endregion

#region 公有属性
/// <summary>
/// 验证码
/// </summary>
public string Text
{
get { return this.text; }
}

/// <summary>
/// 验证码图片
/// </summary>
public Bitmap Image
{
get { return this.image; }
}
#endregion

#region 构造函数
public YZMHelper()
{
HttpContext.Current.Response.Expires = 0;
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.ExpiresAbsolute = DateTime.Now.AddSeconds(-1);
HttpContext.Current.Response.AddHeader("pragma", "no-cache");
HttpContext.Current.Response.CacheControl = "no-cache";
this.text = Rand.Number(4);
CreateImage();
}
#endregion

#region 私有方法
/// <summary>
/// 获得下一个随机数
/// </summary>
/// <param name="max">最大值</param>
private static int Next(int max)
{
rand.GetBytes(randb);
int value = BitConverter.ToInt32(randb, 0);
value = value % (max + 1);
if (value < 0) value = -value;
return value;
}

/// <summary>
/// 获得下一个随机数
/// </summary>
/// <param name="min">最小值</param>
/// <param name="max">最大值</param>
private static int Next(int min, int max)
{
int value = Next(max - min) + min;
return value;
}
#endregion

#region 公共方法
/// <summary>
/// 绘制验证码
/// </summary>
public void CreateImage()
{
int int_ImageWidth = this.text.Length * letterWidth;
Bitmap image = new Bitmap(int_ImageWidth, letterHeight);
Graphics g = Graphics.FromImage(image);
g.Clear(Color.White);
for (int i = 0; i < 2; i++)
{
int x1 = Next(image.Width - 1);
int x2 = Next(image.Width - 1);
int y1 = Next(image.Height - 1);
int y2 = Next(image.Height - 1);
g.DrawLine(new Pen(Color.Silver), x1, y1, x2, y2);
}
int _x = -12, _y = 0;
for (int int_index = 0; int_index < this.text.Length; int_index++)
{
_x += Next(12, 16);
_y = Next(-2, 2);
string str_char = this.text.Substring(int_index, 1);
str_char = Next(1) == 1 ? str_char.ToLower() : str_char.ToUpper();
Brush newBrush = new SolidBrush(GetRandomColor());
Point thePos = new Point(_x, _y);
g.DrawString(str_char, fonts[Next(fonts.Length - 1)], newBrush, thePos);
}
for (int i = 0; i < 10; i++)
{
int x = Next(image.Width - 1);
int y = Next(image.Height - 1);
image.SetPixel(x, y, Color.FromArgb(Next(0, 255), Next(0, 255), Next(0, 255)));
}
image = TwistImage(image, true, Next(1, 3), Next(4, 6));
g.DrawRectangle(new Pen(Color.LightGray, 1), 0, 0, int_ImageWidth - 1, (letterHeight - 1));
this.image = image;
}

/// <summary>
/// 字体随机颜色
/// </summary>
public Color GetRandomColor()
{
Random RandomNum_First = new Random((int)DateTime.Now.Ticks);
System.Threading.Thread.Sleep(RandomNum_First.Next(50));
Random RandomNum_Sencond = new Random((int)DateTime.Now.Ticks);
int int_Red = RandomNum_First.Next(180);
int int_Green = RandomNum_Sencond.Next(180);
int int_Blue = (int_Red + int_Green > 300) ? 0 : 400 - int_Red - int_Green;
int_Blue = (int_Blue > 255) ? 255 : int_Blue;
return Color.FromArgb(int_Red, int_Green, int_Blue);
}

/// <summary>
/// 正弦曲线Wave扭曲图片
/// </summary>
/// <param name="srcBmp">图片路径</param>
/// <param name="bXDir">如果扭曲则选择为True</param>
/// <param name="nMultValue">波形的幅度倍数，越大扭曲的程度越高,一般为3</param>
/// <param name="dPhase">波形的起始相位,取值区间[0-2*PI)</param>
public System.Drawing.Bitmap TwistImage(Bitmap srcBmp, bool bXDir, double dMultValue, double dPhase)
{
double PI = 6.283185307179586476925286766559;
Bitmap destBmp = new Bitmap(srcBmp.Width, srcBmp.Height);
Graphics graph = Graphics.FromImage(destBmp);
graph.FillRectangle(new SolidBrush(Color.White), 0, 0, destBmp.Width, destBmp.Height);
graph.Dispose();
double dBaseAxisLen = bXDir ? (double)destBmp.Height : (double)destBmp.Width;
for (int i = 0; i < destBmp.Width; i++)
{
for (int j = 0; j < destBmp.Height; j++)
{
double dx = 0;
dx = bXDir ? (PI * (double)j) / dBaseAxisLen : (PI * (double)i) / dBaseAxisLen;
dx += dPhase;
double dy = Math.Sin(dx);
int nOldX = 0, nOldY = 0;
nOldX = bXDir ? i + (int)(dy * dMultValue) : i;
nOldY = bXDir ? j : j + (int)(dy * dMultValue);

Color color = srcBmp.GetPixel(i, j);
if (nOldX >= 0 && nOldX < destBmp.Width
&& nOldY >= 0 && nOldY < destBmp.Height)
{
destBmp.SetPixel(nOldX, nOldY, color);
}
}
}
srcBmp.Dispose();
return destBmp;
}
#endregion
}