Android实现用Android手机控制PC端的关机和重启的功能

package com.oyp.shutdown; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import java.net.Socket; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.widget.Button; import android.widget.Toast; public class ControlActivity extends Activity implements OnClickListener { private Button btn_shutdown, btn_restart, btn_cancel, btn_close; private Socket clientSocket;// 客户端socket private DataOutputStream dataOutput = null;// 客户端发送数据 private DataInputStream dataInput = null;// 客户端接收数据 private String connIP = ""; private ConnThread connThread = null; private Handler handler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case 1: Toast.makeText(ControlActivity.this, (String) msg.obj, Toast.LENGTH_SHORT).show(); break; default: break; } super.handleMessage(msg); } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().requestFeature(Window.FEATURE_LEFT_ICON); setContentView(R.layout.layout_control); getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.acticon); btn_shutdown = (Button) findViewById(R.id.btnShutdown); btn_restart = (Button) findViewById(R.id.btnReboot); btn_cancel = (Button) findViewById(R.id.btnCancel); btn_close = (Button) findViewById(R.id.btnClose); Intent intent = getIntent(); connIP = intent.getStringExtra("ip"); btn_shutdown.setOnClickListener(this); btn_restart.setOnClickListener(this); btn_cancel.setOnClickListener(this); btn_close.setOnClickListener(this); } @Override public void onClick(View v) { // 连接服务器 switch (v.getId()) { case R.id.btnShutdown: final String shutdown = "shutdown"; if (connThread != null) { connThread.interrupt(); } connThread = new ConnThread(connIP, 30000, shutdown); connThread.start(); break; case R.id.btnReboot: final String reboot = "reboot"; if (connThread != null) { connThread.interrupt(); } connThread = new ConnThread(connIP, 30000, reboot); connThread.start(); break; case R.id.btnCancel: final String cancel = "cancel"; if (connThread != null) { connThread.interrupt(); } connThread = new ConnThread(connIP, 30000, cancel); connThread.start(); break; case R.id.btnClose: finish(); break; default: break; } } class ConnThread extends Thread { private String ip; private int port; private String content; public ConnThread(String ip, int port, String content) { this.ip = ip; this.port = port; this.content = content; } @Override public void run() { try { clientSocket = new Socket(ip, port); while (true) { dataOutput = new DataOutputStream( clientSocket.getOutputStream()); dataInput = new DataInputStream( clientSocket.getInputStream()); String msg = ""; if ((dataOutput != null) && (!content.equals(""))) { dataOutput.writeUTF(content); } msg = dataInput.readUTF(); if (msg != null && !"".equals(msg)) { Message message = new Message(); message.what = 1; message.obj = msg; handler.sendMessage(message); } } } catch (Exception e) { e.printStackTrace(); } finally { try { if (dataOutput != null) { dataOutput.close(); } if (dataInput != null) { dataInput.close(); } if (clientSocket != null) { clientSocket = null; } } catch (IOException e) { e.printStackTrace(); } } super.run(); } } }