C# 利用HttpListener监听处理Http请求

C# 利用HttpListener监听处理Http请求

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  分类: C#
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Xml.Serialization;
using System.Threading;
using System.Web;
namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                HttpListener listerner = new HttpListener();
                {
                    for (; true; )
                    {
                        try
                        {
                            Console.Write("请输入服务器IP地址:");
                            string ip = Console.ReadLine();

                            listerner.AuthenticationSchemes = AuthenticationSchemes.Anonymous;//指定身份验证 Anonymous匿名访问
                            listerner.Prefixes.Add("http://" + ip + ":1500/AnsweringMachineService/");

                            // listerner.Prefixes.Add("http://localhost/web/");
                            listerner.Start();
                        }
                        catch (Exception e)
                        {
                            Console.WriteLine("未能成功连接服务器.....");
                            listerner = new HttpListener();
                            continue;
                        }
                        break;
                    }
                    Console.WriteLine("服务器启动成功.......");

                    int maxThreadNum, portThreadNum;

                    //线程池
                    int minThreadNum;
                    ThreadPool.GetMaxThreads(out maxThreadNum, out portThreadNum);
                    ThreadPool.GetMinThreads(out minThreadNum, out portThreadNum);
                    Console.WriteLine("最大线程数:{0}", maxThreadNum);
                    Console.WriteLine("最小空闲线程数:{0}", minThreadNum);

                     
                    //ThreadPool.QueueUserWorkItem(new WaitCallback(TaskProc1), x);
                    
                    Console.WriteLine("\n\n等待客户连接中。。。。");
                    while (true)
                    {
                        //等待请求连接
                        //没有请求则GetContext处于阻塞状态
                        HttpListenerContext ctx = listerner.GetContext();

                        ThreadPool.QueueUserWorkItem(new WaitCallback(TaskProc), ctx);
                    }
                    con.Close();
                    listerner.Stop();
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                Console.Write("Press any key to continue . . . ");
                Console.ReadKey( );
            }

        }

        static void TaskProc(object o)
        {
            HttpListenerContext ctx = (HttpListenerContext)o;

            ctx.Response.StatusCode = 200;//设置返回给客服端http状态代码
       
            string type = ctx.Request.QueryString["type"];
            string userId = ctx.Request.QueryString["userId"];
            string password = ctx.Request.QueryString["password"];
            string filename = Path.GetFileName(ctx.Request.RawUrl);
            string userName = HttpUtility.ParseQueryString(filename).Get("userName");//避免中文乱码

    //进行处理
            
            //使用Writer输出http响应代码
            using (StreamWriter writer = new StreamWriter(ctx.Response.OutputStream))
            {
                writer.Write(“处理结果”);
                writer.Close();
                ctx.Response.Close();
            }
        }
    }
}



Android客户端:
public static void Register(final Handler handler, final Context context,
final String userId, final String userName,final int groupId, final String password){
new Thread(new Runnable(){
       public void run() {
        if(!CommonTools.checkNetwork(context)){
        Message msg = new Message();
        msg.what = Signal.NETWORK_ERR;
        handler.sendMessage(msg);
        return;
        }
       
        try {  
        String content = "";
         String tmp   =   java.net.URLEncoder.encode(userName,   "utf-8");   //防止中文乱码
        URL url = new URL(URL+"?type=Register&userId="+userId+"&password="+password+"&groupId="+groupId+"&userName="+tmp);   
               // HttpURLConnection   
               HttpURLConnection httpconn = (HttpURLConnection) url.openConnection();   
     
               if (httpconn.getResponseCode() == HttpURLConnection.HTTP_OK) {   
                     
                   InputStreamReader isr = new InputStreamReader(httpconn.getInputStream(), "utf-8");   
                   int i;   
                      
                   // read   
                   while ((i = isr.read()) != -1) {   
                       content = content + (char) i;   
                   }   
                   isr.close();     
               }   
               //disconnect   
               httpconn.disconnect();   

    } catch (Exception e) {
    e.printStackTrace();
    }
       }//run
}).start();//thread
}

注意:
1.中文乱码问题
   在客户端采用如下形式
   String tmp   =   java.net.URLEncoder.encode(userName,   "utf-8");   //防止中文乱码
   服务器端
   string filename = Path.GetFileName(ctx.Request.RawUrl);
   string userName = HttpUtility.ParseQueryString(filename).Get("userName");//避免中文乱码
 
   服务器端需要引入:  using System.Web;
   此时可能提示找不到库,则在项目右键添加引用 找到 System.Web.dll勾选即可

2.[System.Net.HttpListenerException] = {"拒绝访问。"}问题
   如果是win7或者win8,在cmd.exe上右键,以管理员身份运行,然后执行下面的命令
   netsh http add urlacl url=http://本机IP:1500/ user=用户名(如Administrator)
   
3.记得关闭防火墙,或者只开放指定端口,步骤如下:
        s tep1、点击控制面板
  
  step2、选择windows防火墙,点击高级设置
  
  step3、在弹出的“高级安全windows防火墙”点击“入站规则”,在右侧“操作”栏点击“入站规则”下的“新建规则…”,此时会弹出一个窗口让你设置。剩下的就非常傻瓜化了。
  
  step4、弹出“新建入站规则向导”-规则类型-选中“端口”,点击下一步。选择规则应用的协议“TCP/UDP”如果是TCP你就选择TCP,UDP就选择UDP。再勾选“特定本地端口”在文本框输入您想开放的端口号(例如1521)。
  
  step5、点击下一步,到“连接符合指定条件时应该进行什么操作?”选择“允许连接”。点击下一步到“配置文件”何时应用该规则,勾选“域”、“专用”、“公用”点击下一步。
  
  step6、配置规则名称,随便输入你自己认为好记的规则名称即可。

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