1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Collections;
 5using System.Web;
 6using System.Web.Security;
 7using System.Web.UI;
 8using System.Web.UI.WebControls;
 9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11using System.IO;
12//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃoｍ)
13
14public partial class getfile : System.Web.UI.Page
15...{
16    string text = "";//用来传递给原始数据变量'filetext'的临时变量,页面第一次加载时初始值.将来用做恢复用的
17    protected void Page_Load(object sender, EventArgs e)
18    ...{
19        if (!User.Identity.IsAuthenticated) Response.Redirect("default.aspx");//如果用户没有登陆......
20        if (Request.Url.AbsoluteUri.IndexOf("public") != -1)//表示能在地址栏找到表示为VIP用户的标识
21        ...{
22            this.HyperLink1.Text = "支持外部匿名访问：";
23            this.url.Visible = true;
24            this.url.Text = this.HyperLink1.NavigateUrl = Uri.UnescapeDataString(Request.Url.AbsoluteUri.Replace("edit.aspx?", ""));//由于这里传过来的地址比较巧妙,只要把'edit.aspx?'去掉,就是文件地址
25            this.HyperLink1.Target = "_blank";
26        }
27        this.encode.Text = "目前编码：" + getencode().EncodingName;
28        if (!IsPostBack)
29        ...{
30            //首先就是取文件地址,这不用说了吧...
31            ViewState["path"] = Uri.UnescapeDataString(Request.Url.Query.Replace("?", ""));
32            if (Request.Url.Query != "") readfile();//开始读取文件
33            ViewState["filetext"] = text;//读取过文件后变量'text'就有值了
34            this.filetext.Attributes.Add("style", "display:none");
35        }
36    }
37    /**//* 读取文件
38     * 写入变量text,做恢复文件用
39     * 将按照'DropDownList1'控件指定的编码显示
40     * 将按照''控件指定的代码显示代码高亮格式
41     */
42    private void readfile()
43    ...{
44        string noedit = "";
45        string path = Server.MapPath(ViewState["path"].ToString());
46        if (File.Exists(path))
47        ...{
48            string k1 = ".vb .asp .inc .sql .php .java .css .aspx .cs .txt .html .htm";
49            string[] allkzm = k1.Split(new char[] ...{ ' ', '　' });
50            string thiskzm = Path.GetExtension(path);//获取要修改的文件的扩展名
51            foreach (string kz in allkzm)
52                if (String.Equals(kz, thiskzm, StringComparison.OrdinalIgnoreCase))//与动态数组每个值全文匹配
53                ...{
54                    text = File.ReadAllText(path, getencode());
55                    noedit = "";
56                    break;
57                }
58                else noedit = text = "该文件不可编辑";
59        }
60        else noedit = text = "文件不存在";
61        if (noedit != "")
62            this.msg.Text = "<script type=\"text/javascript\" defer=\"defer\">alert('" + noedit + "');window.close()</script>";
63        else
64            this.filetext.Text = text;
65    }
66    //选择语言后从新绑定
67    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
68    ...{
69        readfile();
70    }
71    //保存文件的操作
72    protected void Button1_Click(object sender, EventArgs e)
73    ...{
74        string path = Server.MapPath(ViewState["path"].ToString());
75        string text = this.filetext.Text;
76        StreamWriter sw = new StreamWriter(path, false, getencode());
77        sw.Write(text);
78        sw.Close();
79    }
80    protected void Button2_Click(object sender, EventArgs e)
81    ...{
82        if (ViewState.Count > 0) this.filetext.Text = ViewState["filetext"].ToString();
83        else this.msg.Text = "对不起,文件没有恢复成功!请检查您的使用方式";
84    }
85    private System.Text.Encoding getencode()
86    ...{
87        switch (this.DropDownList1.SelectedValue)
88        ...{
89            case "0":
90                return System.Text.Encoding.GetEncoding("gb2312");
91            case "1":
92                return System.Text.Encoding.UTF8;
93            default:
94                return System.Text.Encoding.Default;
95        }
96    }
97}
98//５1ａsｐｘ．ｃoｍ