Socket实现Android客户端与服务器的通信

前言：题目要求故写一下总结。

1.什么是Socket?

网络用语叫套接字原理是基于tcp/ip 协议的一种通信手段，目前题目中要求无非就是当客户端数据异常时推送给服务器报警信息

往常接下来都是先看效果图的，由于今天回宿舍有点早，准备有点匆忙，所以演示没准备，但代码都是测试通过的，直接贴代码吧.

* 2.MainActivity主类*

public class MainActivity extends Activity {EditText ip;EditText editText;TextView tv;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ip = (EditText) findViewById(R.id.ip);editText = (EditText) findViewById(R.id.editText);tv = (TextView) findViewById(R.id.tv);//连接按钮findViewById(R.id.connect).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View arg0) {connect();//连接}});//发送数据按钮findViewById(R.id.send).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View arg0) {send();}});}// ------------------------------------------------------------------------------------Socket socket = null;BufferedWriter writer = null;BufferedReader reader = null;/*** 异步 实现socket与服务器的连接*/public void connect() {AsyncTask<Void, String, Void> read = new AsyncTask<Void, String, Void>() {@Overrideprotected Void doInBackground(Void... arg0) {try {socket = new Socket(ip.getText().toString(), 40000);writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));publishProgress("@success");} catch (UnknownHostException e1) {System.out.println(e1.toString());} catch (IOException e1) {System.out.println(e1.toString());}try {String line;while ((line = reader.readLine()) != null) {publishProgress(line);}reader.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}return null;}@Overrideprotected void onProgressUpdate(String... values) {if (values[0].equals("@success")) {Toast.makeText(MainActivity.this, "连接成功",Toast.LENGTH_SHORT).show();}tv.append("别人说：" + values[0] + "\n");super.onProgressUpdate(values);}};read.execute();}/*** socket 发送方法*/private void send() {try {tv.append("我说" + editText.getText().toString() + "\n");writer.write(editText.getText().toString() + "\n");writer.flush();editText.setText("");} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}
}

3.xml布局


<LinearLayout xmlns:tools="http://schemas.android.com/tools"xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical"tools:context=".MainActivity" ><EditText
        android:id="@+id/ip"android:layout_width="match_parent"android:layout_height="wrap_content"android:text="10.67.66.195" ></EditText><Button
        android:id="@+id/connect"android:layout_width="match_parent"android:layout_height="wrap_content"android:text="连接" /><TextView
        android:id="@+id/tv"android:layout_width="fill_parent"android:layout_height="wrap_content"android:layout_weight="0.85" /><EditText
        android:id="@+id/editText"android:hint="发送的消息"android:layout_width="match_parent"android:layout_height="wrap_content" /><Button
        android:id="@+id/send"android:layout_width="match_parent"android:layout_height="wrap_content"android:onClick="send"android:text="发送" /></LinearLayout>

4.总结

代码挺简单的，因为题目需求不高，所以就一个异步加载的方法实现与服务器的通信即可。

其实如果觉得麻烦，甚至还可以继续简化一些，直接把socket写在一个子线程就可以了

new Thread(){public void run() {try {Socket socket  = new Socket("192.168.100.1",4000);.......} catch (UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}};}.start();