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    WEB項目后端跨域請求
    來源:易賢網(wǎng) 閱讀:1053 次 日期:2015-02-02 15:47:32
    溫馨提示:易賢網(wǎng)小編為您整理了“WEB項目后端跨域請求”,方便廣大網(wǎng)友查閱!

    using System;

    using System.Collections.Generic;

    using System.IO;

    using System.Linq;

    using System.Net;

    using System.Text;

    using System.Web;

    using System.Web.SessionState;

    namespace GL

    {

    public class CrossDomainHandler:IHttpModule, IRequiresSessionState

    {

    ///

    /// 釋放內(nèi)存

    ///

    public void Dispose()

    {

    }

    ///

    /// 開始請求

    ///

    ///

    public void Init(HttpApplication context)

    {

    //頁面開始請求時,綁定時間

    context.BeginRequest += new EventHandler(context_PreRequestHandlerExecute);

    }

    ///

    /// 請求處理

    ///

    ///

    ///

    void context_PreRequestHandlerExecute(object sender, EventArgs e)

    {

    HttpApplication app = (HttpApplication)sender;

    HttpContext context = app.Context;

    context.Response.AppendHeader("charset", "utf-8");

    context.Response.AppendHeader("defaultCharset", "utf-8");

    context.Response.AppendHeader("Content-Type", "text/html; charset=utf-8");

    var relativeAddr = context.Request.AppRelativeCurrentExecutionFilePath.Remove(0, 2);

    if (relativeAddr.StartsWith("Server"))

    {

    var url = string.Concat("", relativeAddr.Substring(relativeAddr.IndexOf('/')));

    HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;

    request.Method = "POST";

    request.ContentType = "application/x-www-form-urlencoded";

    var rs = request.GetRequestStream();

    var sb = new StringBuilder("a=a&");

    context.Request.Form.AllKeys.ToList().ForEach(name =>

    {

    sb.AppendFormat("{0}={1}&", name, context.Request.Form[name]);

    });

    var str = sb.ToString();

    if(str.Contains('&'))

    {

    str = str.Substring(0, str.Length - 1);

    }

    var sw = new StreamWriter(rs, Encoding.UTF8);

    sw.Write(sb.ToString());

    sw.Close();

    request.Timeout = 60 * 1000;

    var response = request.GetResponse() as HttpWebResponse;

    var ps = response.GetResponseStream();

    var reader = new StreamReader(ps, Encoding.UTF8);

    string html = reader.ReadToEnd();

    ps.Close();

    context.Response.Write(html);

    context.Response.End();

    }

    }

    }

    }

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    易賢網(wǎng)手機(jī)網(wǎng)站地址:WEB項目后端跨域請求
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