新软件马上就要完成了,先发篇文章YY下
最近一直都在搞网站抓取方面的开发，闲着无聊逛逛论坛，发现有些帖子还是写的相当不错的，只是一篇一篇的点进去比较麻烦，于是就写了个小软件只是为了方便查看博客园和CSDN上的优秀文章。其实这个还可以拓展的，比如说可以添加RSS功能，查看新闻网站的新闻。代码比较简单，可以考虑用个工厂模式。
写的比较乱，都不敢上代码了。求大神喷！
2013-6-28号更新
1、添加了皮肤
2013-6-29号更新
1、解决了ListView控件添加数据闪烁问题。
2、取消皮肤加快数据加载速度
3、优化了浏览文章体验
里面有几个类库非常不错，想要的可以拿去。
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////// 类说明：HttpHelps类，用来实现Http访问，Post或者Get方式的，直接访问，带Cookie的，带证书的等方式，可以设置代理/// 重要提示：请不要自行修改本类，如果因为你自己修改后将无法升级到新版本。如果确实有什么问题请到官方网站提建议，/// 我们一定会及时修改/// 编码日期：2011-09-20/// 编 码 人：苏飞/// 联系方式：361983679 /// 修改日期：2013-04-14///using System;using System.Collections.Generic;using System.Text;using System.Net;using System.IO;using System.Text.RegularExpressions;using System.IO.Compression;using System.Security.Cryptography.X509Certificates;using System.Net.Security;namespace Common.PageHelper{ /// /// Http连接操作帮助类 /// public class HttpHelper { #region 预定义方法或者变更 //默认的编码 private Encoding encoding = Encoding.Default; //HttpWebRequest对象用来发起请求 private HttpWebRequest request = null; //获取影响流的数据对象 private HttpWebResponse response = null; /// /// 根据相传入的数据，得到相应页面数据 /// ///参数类对象 ///返回HttpResult类型 private HttpResult GetHttpRequestData(HttpItem objhttpitem) { //返回参数 HttpResult result = new HttpResult(); try { #region 得到请求的response using (response = (HttpWebResponse)request.GetResponse()) { result.StatusCode = response.StatusCode; result.StatusDescription = response.StatusDescription; result.Header = response.Headers; if (response.Cookies != null) result.CookieCollection = response.Cookies; if (response.Headers["set-cookie"] != null) result.Cookie = response.Headers["set-cookie"]; MemoryStream _stream = new MemoryStream(); //GZIIP处理 if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase)) { //开始读取流并设置编码方式 //new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240); //.net4.0以下写法 _stream = GetMemoryStream(new GZipStream(response.GetResponseStream(), CompressionMode.Decompress)); } else { //开始读取流并设置编码方式 //response.GetResponseStream().CopyTo(_stream, 10240); //.net4.0以下写法 _stream = GetMemoryStream(response.GetResponseStream()); } //获取Byte byte[] RawResponse = _stream.ToArray(); _stream.Close(); //是否返回Byte类型数据 if (objhttpitem.ResultType == ResultType.Byte) result.ResultByte = RawResponse; //从这里开始我们要无视编码了 if (encoding == null) { Match meta = Regex.Match(Encoding.Default.GetString(RawResponse), "<meta([^<]*)charset=([^<]*)["']", RegexOptions.IgnoreCase); string charter = (meta.Groups.Count > 2) ? meta.Groups[2].Value.ToLower() : string.Empty; charter = charter.Replace(""", "").Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk"); if (charter.Length > 2) encoding = Encoding.GetEncoding(charter); else { if (string.IsNullOrEmpty(response.CharacterSet)) encoding = Encoding.UTF8; else encoding = Encoding.GetEncoding(response.CharacterSet); } } //得到返回的HTML result.Html = encoding.GetString(RawResponse); } #endregion } catch (WebException ex) { //这里是在发生异常时返回的错误信息 response = (HttpWebResponse)ex.Response; result.Html = ex.Message; result.StatusCode = response.StatusCode; result.StatusDescription = response.StatusDescription; } catch (Exception ex) { result.Html = ex.Message; } if (objhttpitem.IsToLower) result.Html = result.Html.ToLower(); return result; } /// /// 4.0以下.net版本取数据使用 /// ///流 private static MemoryStream GetMemoryStream(Stream streamResponse) { MemoryStream _stream = new MemoryStream(); int Length = 256; Byte[] buffer = new Byte[Length]; int bytesRead = streamResponse.Read(buffer, 0, Length); // write the required bytes while (bytesRead > 0) { _stream.Write(buffer, 0, bytesRead); bytesRead = streamResponse.Read(buffer, 0, Length); } return _stream; } /// /// 为请求准备参数 /// ///参数列表 ///读取数据时的编码方式 private void SetRequest(HttpItem objhttpItem) { // 验证证书 SetCer(objhttpItem); //设置Header参数 if (objhttpItem.Header != null && objhttpItem.Header.Count > 0) { foreach (string item in objhttpItem.Header.AllKeys) { request.Headers.Add(item, objhttpItem.Header[item]); } } // 设置代理 SetProxy(objhttpItem); //请求方式Get或者Post request.Method = objhttpItem.Method; request.Timeout = objhttpItem.Timeout; request.ReadWriteTimeout = objhttpItem.ReadWriteTimeout; //Accept request.Accept = objhttpItem.Accept; //ContentType返回类型 request.ContentType = objhttpItem.ContentType; //UserAgent客户端的访问类型，包括浏览器版本和操作系统信息 request.UserAgent = objhttpItem.UserAgent; // 编码 encoding = objhttpItem.Encoding; //设置Cookie SetCookie(objhttpItem); //来源地址 request.Referer = objhttpItem.Referer; //是否执行跳转功能 request.AllowAutoRedirect = objhttpItem.Allowautoredirect; //设置Post数据 SetPostData(objhttpItem); //设置最大连接 if (objhttpItem.Connectionlimit > 0) request.ServicePoint.ConnectionLimit = objhttpItem.Connectionlimit; } /// /// 设置证书 /// /// private void SetCer(HttpItem objhttpItem) { if (!string.IsNullOrEmpty(objhttpItem.CerPath)) { //这一句一定要写在创建连接的前面。使用回调的方法进行证书验证。 ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult); //初始化对像，并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL); //将证书添加到请求里 request.ClientCertificates.Add(new X509Certificate(objhttpItem.CerPath)); } else //初始化对像，并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL); } /// /// 设置Cookie /// ///Http参数 private void SetCookie(HttpItem objhttpItem) { if (!string.IsNullOrEmpty(objhttpItem.Cookie)) //Cookie request.Headers[HttpRequestHeader.Cookie] = objhttpItem.Cookie; //设置Cookie if (objhttpItem.CookieCollection != null) { request.CookieContainer = new CookieContainer(); request.CookieContainer.Add(objhttpItem.CookieCollection); } } /// /// 设置Post数据 /// ///Http参数 private void SetPostData(HttpItem objhttpItem) { //验证在得到结果时是否有传入数据 if (request.Method.Trim().ToLower().Contains("post")) { byte[] buffer = null; //写入Byte类型 if (objhttpItem.PostDataType == PostDataType.Byte && objhttpItem.PostdataByte != null && objhttpItem.PostdataByte.Length > 0) { //验证在得到结果时是否有传入数据 buffer = objhttpItem.PostdataByte; }//写入文件 else if (objhttpItem.PostDataType == PostDataType.FilePath && !string.IsNullOrEmpty(objhttpItem.Postdata)) { StreamReader r = new StreamReader(objhttpItem.Postdata, encoding); buffer = Encoding.Default.GetBytes(r.ReadToEnd()); r.Close(); } //写入字符串 else if (!string.IsNullOrEmpty(objhttpItem.Postdata)) { buffer = Encoding.Default.GetBytes(objhttpItem.Postdata); } if (buffer != null) { request.ContentLength = buffer.Length; request.GetRequestStream().Write(buffer, 0, buffer.Length); } } } /// /// 设置代理 /// ///参数对象 private void SetProxy(HttpItem objhttpItem) { if (!string.IsNullOrEmpty(objhttpItem.ProxyIp)) { //设置代理服务器 WebProxy myProxy = new WebProxy(objhttpItem.ProxyIp, false); //建议连接 myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd); //给当前请求对象 request.Proxy = myProxy; //设置安全凭证 request.Credentials = CredentialCache.DefaultNetworkCredentials; } } /// /// 回调验证证书问题 /// ///流对象 ///证书 ///X509Chain ///SslPolicyErrors ///bool public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { // 总是接受 return true; } #endregion #region 普通类型 /// ///采用https协议访问网络,根据传入的URl地址，得到响应的数据字符串。 /// ///参数列表 ///String类型的数据 public HttpResult GetHtml(HttpItem objhttpItem) { try { //准备参数 SetRequest(objhttpItem); } catch (Exception ex) { return new HttpResult() { Cookie = "", Header = null, Html = ex.Message, StatusDescription = "配置参考时报错"}; } //调用专门读取数据的类 return GetHttpRequestData(objhttpItem); } #endregion } /// /// Http请求参考类 /// public class HttpItem { string _URL = string.Empty; /// /// 请求URL必须填写 /// public string URL { get { return _URL; } set { _URL = value; } } string _Method = "GET"; /// /// 请求方式默认为GET方式,当为POST方式时必须设置Postdata的值 /// public string Method { get { return _Method; } set { _Method = value; } } int _Timeout = 100000; /// /// 默认请求超时时间 /// public int Timeout { get { return _Timeout; } set { _Timeout = value; } } int _ReadWriteTimeout = 30000; /// /// 默认写入Post数据超时间 /// public int ReadWriteTimeout { get { return _ReadWriteTimeout; } set { _ReadWriteTimeout = value; } } string _Accept = "text/html, application/xhtml+xml, */*"; /// /// 请求标头值 默认为text/html, application/xhtml+xml, */* /// public string Accept { get { return _Accept; } set { _Accept = value; } } string _ContentType = "text/html"; /// /// 请求返回类型默认 text/html /// public string ContentType { get { return _ContentType; } set { _ContentType = value; } } string _UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"; /// /// 客户端访问信息默认Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) /// public string UserAgent { get { return _UserAgent; } set { _UserAgent = value; } } Encoding _Encoding = null; /// /// 返回数据编码默认为NUll,可以自动识别,一般为utf-8,gbk,gb2312 /// public Encoding Encoding { get { return _Encoding; } set { _Encoding = value; } } private PostDataType _PostDataType = PostDataType.String; /// /// Post的数据类型 /// public PostDataType PostDataType { get { return _PostDataType; } set { _PostDataType = value; } } string _Postdata = string.Empty; /// /// Post请求时要发送的字符串Post数据 /// public string Postdata { get { return _Postdata; } set { _Postdata = value; } } private byte[] _PostdataByte = null; /// /// Post请求时要发送的Byte类型的Post数据 /// public byte[] PostdataByte { get { return _PostdataByte; } set { _PostdataByte = value; } } CookieCollection cookiecollection = null; /// /// Cookie对象集合 /// public CookieCollection CookieCollection { get { return cookiecollection; } set { cookiecollection = value; } } string _Cookie = string.Empty; /// /// 请求时的Cookie /// public string Cookie { get { return _Cookie; } set { _Cookie = value; } } string _Referer = string.Empty; /// /// 来源地址，上次访问地址 /// public string Referer { get { return _Referer; } set { _Referer = value; } } string _CerPath = string.Empty; /// /// 证书绝对路径 /// public string CerPath { get { return _CerPath; } set { _CerPath = value; } } private Boolean isToLower = false; /// /// 是否设置为全文小写，默认为不转化 /// public Boolean IsToLower { get { return isToLower; } set { isToLower = value; } } private Boolean allowautoredirect = false; /// /// 支持跳转页面，查询结果将是跳转后的页面，默认是不跳转 /// public Boolean Allowautoredirect { get { return allowautoredirect; } set { allowautoredirect = value; } } private int connectionlimit = 1024; /// /// 最大连接数 /// public int Connectionlimit { get { return connectionlimit; } set { connectionlimit = value; } } private string proxyusername = string.Empty; /// /// 代理Proxy 服务器用户名 /// public string ProxyUserName { get { return proxyusername; } set { proxyusername = value; } } private string proxypwd = string.Empty; /// /// 代理 服务器密码 /// public string ProxyPwd { get { return proxypwd; } set { proxypwd = value; } } private string proxyip = string.Empty; /// /// 代理 服务IP /// public string ProxyIp { get { return proxyip; } set { proxyip = value; } } private ResultType resulttype = ResultType.String; /// /// 设置返回类型String和Byte /// public ResultType ResultType { get { return resulttype; } set { resulttype = value; } } private WebHeaderCollection header = new WebHeaderCollection(); //header对象 public WebHeaderCollection Header { get { return header; } set { header = value; } } } /// /// Http返回参数类 /// public class HttpResult { string _Cookie = string.Empty; /// /// Http请求返回的Cookie /// public string Cookie { get { return _Cookie; } set { _Cookie = value; } } CookieCollection cookiecollection = new CookieCollection(); /// /// Cookie对象集合 /// public CookieCollection CookieCollection { get { return cookiecollection; } set { cookiecollection = value; } } private string html = string.Empty; /// /// 返回的String类型数据 只有ResultType.String时才返回数据，其它情况为空 /// public string Html { get { return html; } set { html = value; } } private byte[] resultbyte = null; /// /// 返回的Byte数组 只有ResultType.Byte时才返回数据，其它情况为空 /// public byte[] ResultByte { get { return resultbyte; } set { resultbyte = value; } } private WebHeaderCollection header = new WebHeaderCollection(); //header对象 public WebHeaderCollection Header { get { return header; } set { header = value; } } private string statusDescription = ""; /// /// 返回状态说明 /// public string StatusDescription { get { return statusDescription; } set { statusDescription = value; } } private HttpStatusCode statusCode = HttpStatusCode.OK; /// /// 返回状态码,默认为OK /// public HttpStatusCode StatusCode { get { return statusCode; } set { statusCode = value; } } } /// /// 返回类型 /// public enum ResultType { /// /// 表示只返回字符串 只有Html有数据 /// String, /// /// 表示返回字符串和字节流 ResultByte和Html都有数据返回 /// Byte } /// /// Post的数据格式默认为string /// public enum PostDataType { /// /// 字符串类型，这时编码Encoding可不设置 /// String, /// /// Byte类型，需要设置PostdataByte参数的值编码Encoding可设置为空 /// Byte, /// /// 传文件，Postdata必须设置为文件的绝对路径，必须设置Encoding的值 /// FilePath }} |
分类: .net代码