package com.speed; 

import java.io.BufferedReader; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.lang.reflect.Array; 
import java.net.URL; 

public  class TestServer { 
   static  int loopTimes = 500; 

   public Parameter readFromArgFile(String str) { 
    FileInputStream fileInput; 
    BufferedReader br; 
    Parameter param =  new Parameter(); 
     try { 
      fileInput =  new FileInputStream( new File(str)); 
      br =  new BufferedReader( new InputStreamReader(fileInput)); 

      String line; 
       while ((line = br.readLine()) !=  null) { 
         if (line.startsWith( "URL") ==  true && line.indexOf( "=") >= 3) { 
           int f = line.indexOf( "="); 
          String urlstring = line.substring(f + 1); 
          urlstring.trim(); 
          param.url =  new URL(urlstring); 
        }  else  if (line.startsWith( "METHOD") ==  true 
            && line.indexOf( "=") >= 3) { 
           int f = line.indexOf( "="); 
          String method = line.substring(f + 1); 
          method.trim(); 
          param.method = method; 
        }  else  if (line.indexOf( "=") != -1) { 
           int f = line.indexOf( "="); 
          String key = line.substring(0, f - 1); 
          String value = line.substring(f + 1); 
          param.addPair(key.trim(), value.trim()); 
        } 
      } 
      fileInput.close(); 
      br.close(); 
    }  catch (FileNotFoundException e) { 
      System.out.println( "File" + str +  "not found."); 
    }  catch (NullPointerException e) { 

    }  catch (IOException e) { 
      System.out.println(e); 
    } 
     return param; 
  } 

   public  static  void main(String[] args) { 
     int i; 
     int j; 
    Parameter param; 
    TestServer tester =  new TestServer(); 
     for (i = 0; i < Array.getLength(args); i++) { 
      param = tester.readFromArgFile(args[i]); 
       for (j = 0; j < loopTimes; j++) { 
        Thread th =  new Thread( new TestThread(param)); 
        th.start(); 
      } 
    } 
  } 
}

package com.speed; 

import java.lang.reflect.Array; 
import java.net.URL; 

public  class Parameter { 
  URL url; 
  String[] key; 
  String[] value; 
  String method; 
   int length = 0; 

   public  void addPair(String k, String v) { 
    Array.set(key, length, k); 
    Array.set(value, length, v); 
    length++; 
  } 
}

package com.speed; 

import java.io.BufferedReader; 
import java.io.InputStreamReader; 
import java.net.HttpURLConnection; 
import java.net.URL; 
import java.util.Date; 

public  class TestThread  implements Runnable { 
  Parameter param; 

  TestThread(Parameter par) { 
    param = par; 
  } 

   public  void run() { 
     long time1 =  new Date().getTime(); 
     try { 
      URL target = param.url; 
      HttpURLConnection conn = (HttpURLConnection) target 
          .openConnection(); 
      conn.setRequestMethod(param.method); 
       int i; 
       for (i = 0; i < param.length; i++) { 
        conn.setRequestProperty(param.key[i], param.value[i]); 
      } 
      conn.connect(); 
      BufferedReader in =  new BufferedReader( new InputStreamReader(conn 
          .getInputStream())); 
      String inputLine; 
       while ((inputLine = in.readLine()) !=  null); 
    }  catch (Exception e) { 

    } 
     long time2 =  new Date().getTime(); 
    System.out.println((time2 - time1)/1000+ "秒"); 
  } 

}

URL=http://mail.163.com 
METHOD=GET 
User-Agent=Internet Explorer 
Host=mail.163.com 
Accept=image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/x-silverlight, */* 
Accept-Language=zh-cn 
Content-Type=application/x-www-form-urlencoded 
Accept-Encoding=gzip, deflate 
User-Agent=Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Foxy/1; .NET CLR 2.0.50727;MEGAUPLOAD 1.0) 
Connection=Keep-Alive 
Cache-Control=no-cache