Android+Socket编程源码（与PC通讯）

package com.socket.client; 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. */ //定义声明需要用到的UI元素 private EditText edtmsgcontent; private Button btnSend; private String ip="169.254.191.14"; private int port=1818; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.main); InitView(); } private void InitView() { //显示主界面 setContentView(R.layout.main); //通过id获取ui元素对象 edtmsgcontent=(EditText)findViewById(R.id.msgcontent); btnSend=(Button)findViewById(R.id.btnsend); //为btnsend设置点击事件 btnSend.setOnClickListener(this); } public void onClick(View bt) { try { String msg=edtmsgcontent.getText().toString(); if(!TextUtils.isEmpty(msg)) SendMsg(ip,port,msg); else { Toast.makeText(this,"请先输入要发送的内容", Toast.LENGTH_LONG); edtmsgcontent.requestFocus(); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void SendMsg(String ip,int port,String msg) throws UnknownHostException, IOException { try { 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(); } } }