Android Socket 编程案例

package com.lzq.socketclient; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.Socket; import java.net.UnknownHostException; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class SocketClientActivity extends Activity { //声明变量 private EditText etMsg; private TextView tvMsg; private Button btnSend; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //获取控件 etMsg = (EditText)this.findViewById(R.id.etMsg); tvMsg = (TextView)this.findViewById(R.id.tvMsg); btnSend = (Button)this.findViewById(R.id.btnSend); //给按钮注册单击事件 btnSend.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { //创建Socket连接对象 （ip地址，端口） Socket socket = new Socket("192.168.1.65",54321); //PrintWriter发送对象 PrintWriter printWriter = new PrintWriter(new OutputStreamWriter(socket.getOutputStream(),"UTF-8"),true); //向服务器发送信息 printWriter.println(etMsg.getText()); //Bufferedreader 接收服务器的数据对象 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream(),"UTF-8")); //接受服务器端数据 String serverContext = bufferedReader.readLine(); //TextView设置文本 tvMsg.setText(serverContext); //关闭服务之间的连接 printWriter.close(); bufferedReader.close(); socket.close(); } catch (UnknownHostException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }); } }