一、创建文件夹
using System.IO; string name = "aa"; string path = Server.MapPath("") + "//" + name; if (Directory.Exists(path)) { Response.Write("<script>alert('文件夹已存在了!');history.go(-1);</script>"); } else { DirectoryInfo folder=Directory.CreateDirectory(path); string time = Convert.ToString(Directory.GetCreationTime(path)); string foldername = name.Substring(name.LastIndexOf("//") + 1); Response.Write("添加成功!"); Response.Write("添加时间："+time); Response.Write("文件夹名："+foldername); }
二、删除文件夹
using System.IO; string name = "aa"; string path = Server.MapPath("") + "//" + name; if (Directory.Exists(path)) { Directory.Delete(path); Response.Write("删除成功!"); } else { Response.Write("<script>alert('文件夹不存在!');history.go(-1);</script>"); }
三、文件夹的移动
string name1 = "aa"; string name2 = "bb//aa"; //移动到的文件夹里,把AA移动到BB里 string path1 = Server.MapPath("") + "//" + name1; string path2 = Server.MapPath("") + "//" + name2; if (!Directory.Exists(path1)) { Response.Write("<script>alert('文件夹"+name1+"不存在!');history.go(-1);</script>"); return; } if (Directory.Exists(path2)) { Response.Write("<script>alert('文件夹" + name2 + "已存在!');history.go(-1);</script>"); return; } try { Directory.Move(path1, path2); Response.Write("文件夹移动成功!"); } catch { Response.Write("<script>alert('必须在同一目录下操作!');history.go(-1);</script>"); }
四、获取文件夹下的文件列表
前台
<aspistBox ID="list" runat="server" Width="200px" Height="300px" Visible="false"></aspistBox>
后台
string name = "aa"; string path = Server.MapPath("") + "//" + name; if (!Directory.Exists(path)) { list.Visible = false; Response.Write("<script>alert('文件夹" + name + "不存在!');history.go(-1);</script>"); return; } else { DirectoryInfo foldinfo = new DirectoryInfo(path); FileSystemInfo[] dirs = foldinfo.GetFileSystemInfos(); if (dirs.Length < 1) { Response.Write("<script>alert('文件夹中没数据!');history.go(-1);</script>"); return; } list.Visible = true; list.DataSource = dirs; list.DataBind(); }
五、创建文件
string name = "aa.aspx"; string path = Server.MapPath("") + "//" + name; if (File.Exists(path)) { Response.Write("<script>alert('文件" + name + "已存在!');history.go(-1);</script>"); return; } else { FileStream fs = File.Create(path); fs.Close(); Response.Write("文件" + name + "添加成功!"); }
六、拷贝文件
string name1 = "aa//1.html"; string name2 = "bb//1.html"; string path1 = Server.MapPath("") + "//" + name1; string path2 = Server.MapPath("") + "//" + name2; if (!File.Exists(path1)) { Response.Write("<script>alert('文件" + name1 + "不存在!');history.go(-1);</script>"); return; } if (File.Exists(path2)) { Response.Write("<script>alert('文件" + name2 + "已存在!');history.go(-1);</script>"); return; } try { File.Copy(path1, path2); Response.Write("拷贝成功!"); } catch { Response.Write("拷贝失败!"); }
七、移动文件
string name1 = "aa//1.html"; string name2 = "bb//1.html"; string path1 = Server.MapPath("") + "//" + name1; string path2 = Server.MapPath("") + "//" + name2; if (!File.Exists(path1)) { Response.Write("<script>alert('文件" + name1 + "不存在!');history.go(-1);</script>"); return; } if (File.Exists(path2)) { Response.Write("<script>alert('文件" + name2 + "已存在!');history.go(-1);</script>"); return; } try { File.Move(path1, path2); Response.Write("移动成功!"); } catch { Response.Write("移动失败!"); }
八、文件删除
1 string name = "bb//1.html"; 2 string path = Server.MapPath("") + "//" + name; 3 4 if (!File.Exists(path)) 5 { 6 Response.Write("<script>alert('文件" + name + "不存在!');history.go(-1);</script>"); 7 return; 8 } 9 try 10 { 11 File.Delete(path); 12 Response.Write("删除成功!"); 13 } 14 catch 15 { 16 Response.Write("删除失败!"); 17 }
九、获取文件的详细信息
1 string name = "aa//11.txt"; 2 string path = Server.MapPath("") + "//" + name; 3 if (!File.Exists(path)) 4 { 5 Response.Write("<script>alert('文件" + name + "不存在!');history.go(-1);</script>"); 6 return; 7 } 8 else 9 { 10 FileInfo file = new FileInfo(path); 11 string filexinxi1, filexinxi2, filexinxi3, filexinxi4, filexinxi5; 12 //文件路径 13 filexinxi1 = file.FullName; 14 //文件大小,字节 15 filexinxi2 = file.Length+"字节"; 16 //文件属性 17 filexinxi3 = file.Attributes.ToString(); 18 //文件创建时间 19 filexinxi4 = file.CreationTime.ToShortDateString(); 20 //文件上次访问时间 21 filexinxi5 = file.LastAccessTime.ToShortDateString(); 22 Response.Write("文件路径:"+filexinxi1+"<br>"); 23 Response.Write("文件大小:" + filexinxi2 + "<br>"); 24 Response.Write("文件属性:" + filexinxi3 + "<br>"); 25 Response.Write("文件创建时间:" + filexinxi4 + "<br>"); 26 Response.Write("文件上次访问时间:" + filexinxi5 + "<br>"); 27 }
十、读取文件内容
1 string name = "aa//11.html"; 2 string path = Server.MapPath("") + "//" + name; 3 FileInfo fi = new FileInfo(path); 4 //获取文件名 5 string filename = fi.Name; 6 //获取文件扩展名 7 string extension = fi.Extension; 8 //判断该文件是否为txt格式 9 if (extension != ".html") 10 { 11 Response.Write("<script>alert('请选择html格式文件!');history.go(-1);</script>"); 12 return; 13 } 14 StreamReader sr = new StreamReader(path, System.Text.Encoding.Default); 15 Response.Write("文件中的内容如下:<br>"); 16 Response.Write(sr.ReadToEnd()); 17 sr.Close();
十一、文件的写入
1 string name = "aa//11.html"; 2 string content1="<html><title>大家好</title></html>"; 3 string path = Server.MapPath("") + "//" + name; 4 FileInfo fi = new FileInfo(path); 5 //获取文件名 6 string filename = fi.Name; 7 //获取文件扩展名 8 string extension = fi.Extension; 9 //判断该文件是否为txt格式 10 if (extension != ".html") 11 { 12 Response.Write("<script>alert('请选择html格式文件!');history.go(-1);</script>"); 13 return; 14 } 15 StreamWriter sr = new StreamWriter(path, true, System.Text.Encoding.GetEncoding("gb2312")); 16 sr.WriteLine(content1); 17 sr.Close(); 18 Response.Write("文件写入成功!");