Android客户端与PC服务端Socket连接详解

1. SocketConnect.java文件
package cn.com;   
  
import java.io.BufferedReader;   
import java.io.BufferedWriter;   
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.view.View.OnClickListener;   
import android.widget.Button;   
import android.widget.EditText;   
import android.widget.TextView;   
  
public class SocketConnect extends Activity {   
  
    private TextView mTextView = null;   
    private EditText mEditText = null;   
    private Button mButton = null;   
  
    /** Called when the activity is first created. */  
    @Override  
    public void onCreate(Bundle savedInstanceState) {   
        super.onCreate(savedInstanceState);   
        setContentView(R.layout.main);   

  
        mButton = (Button) findViewById(R.id.Button01);   
        mTextView = (TextView) findViewById(R.id.TextView01);   
        mEditText = (EditText) findViewById(R.id.EditText01);   
  
        // 登陆   
        mButton.setOnClickListener(new OnClickListener() {   
            public void onClick(View v) {   
                Socket socket = null;   
                String message = mEditText.getText().toString() + "\r\n";   
                try {   
                    // 创建Socket   
                    socket = new Socket("192.168.1.100", 5554); // 查看本机IP,每次开机都不同   
                    // 向服务器发送消息   
                    PrintWriter out = new PrintWriter(new BufferedWriter(   
                            new OutputStreamWriter(socket.getOutputStream())),   
                            true);   
                    out.println(message);   
  
                    // 接收来自服务器的消息   
                    BufferedReader br = new BufferedReader(   
                            new InputStreamReader(socket.getInputStream()));   
                    String msg = br.readLine();   
  
                    if (msg != null) {   
                        mTextView.setText(msg);   
                    } else {   
                        mTextView.setText("数据错误!");   
                    }   
                    // 关闭流