socket使用相关，socket相关,package com.

socket使用相关，socket相关,package com.

package com.sdut.edu.tools;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStream;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.InetSocketAddress;import java.net.Socket;import java.net.SocketAddress;import java.net.SocketException;import java.util.Scanner;import android.app.ActivityManager;import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.util.Log;public class ConnectServer {    public String connectServer(String str) throws SocketException,IOException    {//获得从服务器的响应字符串        // TODO Auto-generated method stub        String result = null;        StringBuffer tempStr=new StringBuffer();//最终返回的结果//      try{            int c=0;            //根据服务器的IP和端口号创建一个socket对象，建立与服务器的连接            Socket socket=new Socket();//Socket的构造方法，            socket.connect(new InetSocketAddress("192.168.0.189",4444),4000);            //接收从服务器获得的数据额对象//            if(socket.getRemoteSocketAddress()==null)//            {//            //            }            //socket.connect(remoteAddr);            //BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream(),"utf-8"),10000);            InputStream is=socket.getInputStream(); //接收数据的转码问题            Scanner in=new Scanner(is);            //根据已经建立的socket创建PrintWriter对象，并通过这个对象将信息发送给服务器。                PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(),"utf-8")),true);            //消息发送            out.println(str);            Log.d("ListAdapter_getvediourl_isConnected",socket.isConnected()+"");            //判断连接超时            if(socket.isConnected())//判断客户端与服务器端的连接，接收响应的字符串            {                       while(in.hasNextLine())                    {                         result=in.nextLine();                         tempStr.append(result);                         System.out.println(tempStr);                       }            }            else            {                System.out.println("连接服务超时");            }            out.close();            in.close();            socket.close();//完成后。关闭socket//      }catch(SocketException e)//      {//          return "-1";//          //System.out.println("连接失败");//          //e.printStackTrace();                                                                                                         //      }catch(IOException e){//          return "-2";//      }        return tempStr.toString();    }}//该片段来自于http://byrx.net