手机与pc服务器通信那点事

1. [代码]手机客户端 

package com.newsocket;
 
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;
 
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.*;
public class Activity01 extends Activity {
    private final String DEBUG_TAG = "Activity01";
    private TextView  mTextView = null;
    private EditText mEditText = null;
    private EditText mima = null;
    private Button mButton = null;
    private DataOutputStream toserver;
    private DataInputStream fromserver; 
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mButton = (Button) this.findViewById(R.id.button1);
        mButton.setText("登录");
        mTextView = (TextView) this.findViewById(R.id.textView1);        
        mEditText = (EditText) this.findViewById(R.id.editText1);
        mima =(EditText) this.findViewById(R.id.editText2);
        mButton.setOnClickListener(new Button.OnClickListener(){            
            public void onClick(View v) {
               Socket socket = null;
               String ms = mEditText.getText().toString();
               String message = mima.getText().toString()+"\r\n";
               try{
                     socket = new Socket("192.168.1.100",54321);
                    //接受服务器的数据流
                    fromserver = new DataInputStream( socket.getInputStream());
                    //要发送的数据流
                    toserver=new DataOutputStream(socket.getOutputStream());
                    toserver.writeBytes(message);
                    toserver.flush();
                    String msg = fromserver.readLine();
                   if(msg != null)
                   {   if(msg.equals(ms))
                       mTextView.setText("登录成功");
                   else
                       mTextView.setText("密码错误");
                   }else
                   {
                       mTextView.setText("数据错误");
                        
                   }
                   toserver.close();
                   fromserver.close();
                   socket.close();
               }catch(Exception e){
                  mTextView.setText("没连接上");
               }
                 
            }
             
        });
    }
}







2. [代码]pc简单的服务器

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
 
 
public class AndroidServer implements Runnable{
 
    @Override
    public void run() {
       try{
           ServerSocket serverSocket = new ServerSocket(54321);
           while(true){
               System.out.println("Android socket 等待接受客户的连接");
               Socket client = serverSocket.accept();//接受客户端请求
               try{
                   BufferedReader in = new BufferedReader
                   (new InputStreamReader(client.getInputStream()));
                   String str = in.readLine();
                   System.out.println("read:"+str);
                   PrintWriter out = new PrintWriter
                   (new BufferedWriter(new OutputStreamWriter(client.getOutputStream())),true
                           );
                   out.println(str);
                   in.close();
                   out.close();
               }catch(Exception e){
                   System.out.println(e.getMessage());
                   e.printStackTrace();
               }
               finally{
                   client.close();
                   System.out.println("Android socket close");
               }
                
           }
       }catch(Exception e){
           System.out.println(e.getMessage());
       }
         
    }
    public static void main(String[] srgs){
        Thread desktopServerThread = new Thread(new AndroidServer());
        desktopServerThread.start();
    }
     
 
}

 

3. [代码]别忘了在AndroieManifest.xml里加上这个

<uses-permissionandroid:name="android.permission.INTERNET"></uses-permission>