WEB项目后端跨域请求_PHP教程

WEB项目后端跨域请求

 　　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

　　{

　　///

　　/// 释放内存

　　///

　　public void Dispose()

　　{

　　}

　　///

　　/// 开始请求

　　///

　　///

　　public void Init(HttpApplication context)

　　{

　　//页面开始请求时，绑定时间

　　context.BeginRequest += new EventHandler(context_PreRequestHandlerExecute);

　　}

　　///

　　/// 请求处理

　　///

　　///

　　///

　　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("http://localhost:89", 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();

　　}

　　}

　　}

　　}

http://www.bkjia.com/PHPjc/950333.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/950333.htmlTechArticleWEB项目后端跨域请求 using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Text; using System.Web; using System....