android 實現socket通信

客戶端代碼：

activity：

package com.example.sockettest;


import java.io.*;
import java.net.Socket;
import java.net.UnknownHostException;

import android.app.Activity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class main extends Activity implements OnClickListener {
    /**
     * Called when the activity is first created.
     */
    private EditText edtmsgcontent;
    private Button btnSend;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //setContentView(R.layout.main);
        InitView();
    }

    private void InitView() {
        setContentView(R.layout.main);

        edtmsgcontent = (EditText) findViewById(R.id.msgcontent);
        btnSend = (Button) findViewById(R.id.btnsend);

        btnSend.setOnClickListener(this);
    }

    public void onClick(View bt) {

        try {
            String msg = edtmsgcontent.getText().toString();
            if (!TextUtils.isEmpty(msg))
                SendMsg(msg);
            else {
                Toast.makeText(this, cccc, Toast.LENGTH_LONG);
                edtmsgcontent.requestFocus();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void SendMsg(final String msg) throws UnknownHostException, IOException {
        new Thread() {
            @Override
            public void run() {
                try {
                    String ip = 192.168.1.155;
                    int port = 1818;
                    Socket socket = null;
                    socket = new Socket(ip, port);
                    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
                    writer.write(msg);
                    writer.flush();
                    writer.close();
                    socket.close();
                } catch (UnknownHostException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }
}

main.xml：

 

 

AndroidMenifest.xml文件中添加網絡訪問權限：

 

 

 

服務器：

不是web工程，直接run main函數就可以了。

 

package test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;


public class Server {
	
	public static void main(String[] args){
		BufferedReader in;
		PrintWriter out;
		try{
			ServerSocket ss = new ServerSocket(43211);
			System.out.println(1);
			Socket socket = ss.accept();
			System.out.println(2);
			in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
			out = new PrintWriter(socket.getOutputStream(),true);
			while(true){
				String line = in.readLine();
				System.out.println(line);
				if(line.equals(88)){
					break;
				}
				out.println(hello:  + line);
				out.flush();
			}
			out.close();
			in.close();
			socket.close();
		}catch(IOException e){
		
		}
	}
			
}