mars老师[Android开发视频教学]01_24 Socket编程

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android

创建两个项目：Socket、Client

Socket为客户端， Client为服务端

==>SocketActivity.java

[java] view plaincopyprint?
package mars.socket;

import java.net.DatagramPacket;
import java.net.DatagramSocket;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class SocketActivity extends Activity {
 /** Called when the activity is first created. */
 private Button startButton = null;
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 startButton = (Button)findViewById(R.id.startListener);
 startButton.setOnClickListener(new StartSocketListener());
 }

 class StartSocketListener implements OnClickListener{

 @Override
 public void onClick(View v) {
 new ServerThread().start();
 }

 }

 class ServerThread extends Thread{
 //使用TCP协议客户端所要进行的操作
 /*public void run(){
 //声明一个ServerSocket对象
 ServerSocket serverSocket = null;
 try {
 //创建一个ServerSocket对象，并让这个Socket在4567端口监听
 serverSocket = new ServerSocket(4567);
 //调用ServerSocket的accept()方法，接受客户端所发送的请求
 Socket socket = serverSocket.accept();
 //从Socket当中得到InputStream对象
 InputStream inputStream = socket.getInputStream();
 byte buffer [] = new byte[1024*4];
 int temp = 0;
 //从InputStream当中读取客户端所发送的数据
 while((temp = inputStream.read(buffer)) != -1){
 System.out.println(new String(buffer,0,temp));
 }
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 finally{
 try {
 serverSocket.close();
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }

 }*/
 //使用UDP协议客户端所要进行的操作
 public void run(){
 try {
 //创建一个DatagramSocket对象，并指定监听的端口号
 DatagramSocket socket = new DatagramSocket(4567);
 byte data [] = new byte[1024];
 //创建一个空的DatagramPacket对象
 DatagramPacket packet = new DatagramPacket(data,data.length);
 //使用receive方法接收客户端所发送的数据
 socket.receive(packet);
 String result = new String(packet.getData(),packet.getOffset(),packet.getLength());
 System.out.println("result--->" + result);
 } catch (Exception e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }
 }
}

package mars.socket;

import java.net.DatagramPacket;
import java.net.DatagramSocket;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class SocketActivity extends Activity {
 /** Called when the activity is first created. */
private Button startButton = null;
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 startButton = (Button)findViewById(R.id.startListener);
 startButton.setOnClickListener(new StartSocketListener());
 }

 class StartSocketListener implements OnClickListener{

@Override
public void onClick(View v) {
new ServerThread().start();
}

 }

 class ServerThread extends Thread{
 //使用TCP协议客户端所要进行的操作
 /*public void run(){
 //声明一个ServerSocket对象
 ServerSocket serverSocket = null;
 try {
 //创建一个ServerSocket对象，并让这个Socket在4567端口监听
serverSocket = new ServerSocket(4567);
//调用ServerSocket的accept()方法，接受客户端所发送的请求
Socket socket = serverSocket.accept();
//从Socket当中得到InputStream对象
InputStream inputStream = socket.getInputStream();
byte buffer [] = new byte[1024*4];
int temp = 0;
//从InputStream当中读取客户端所发送的数据
while((temp = inputStream.read(buffer)) != -1){
System.out.println(new String(buffer,0,temp));
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally{
try {
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

 }*/
 //使用UDP协议客户端所要进行的操作
 public void run(){
 try {
 //创建一个DatagramSocket对象，并指定监听的端口号
DatagramSocket socket = new DatagramSocket(4567);
byte data [] = new byte[1024];
//创建一个空的DatagramPacket对象
DatagramPacket packet = new DatagramPacket(data,data.length);
//使用receive方法接收客户端所发送的数据
socket.receive(packet);
String result = new String(packet.getData(),packet.getOffset(),packet.getLength());
System.out.println("result--->" + result);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
 }
 }
}
Client项目

使用TCP协议

==>TCPClient.java

[java] view plaincopyprint?
package mars;

import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.Socket;

public class TCPClient {
 public static void main(String[] args) {
 try {
 //创建一个Socket对象，指定服务器端的IP地址和端口号
 Socket socket = new Socket("192.168.1.104",4567);
 //使用InputStream读取硬盘上的文件
 InputStream inputStream = new FileInputStream("f://file/words.txt");
 //从Socket当中得到OutputStream
 OutputStream outputStream = socket.getOutputStream();
 byte buffer [] = new byte[4*1024];
 int temp = 0 ;
 //将InputStream当中的数据取出，并写入到OutputStream当中
 while((temp = inputStream.read(buffer)) != -1){
 outputStream.write(buffer, 0, temp);
 }
 outputStream.flush();
 } catch (Exception e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }

package mars;

import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.Socket;

public class TCPClient {
public static void main(String[] args) {
try {
//创建一个Socket对象，指定服务器端的IP地址和端口号
Socket socket = new Socket("192.168.1.104",4567);
//使用InputStream读取硬盘上的文件
InputStream inputStream = new FileInputStream("f://file/words.txt");
//从Socket当中得到OutputStream
OutputStream outputStream = socket.getOutputStream();
byte buffer [] = new byte[4*1024];
int temp = 0 ;
//将InputStream当中的数据取出，并写入到OutputStream当中
while((temp = inputStream.read(buffer)) != -1){
outputStream.write(buffer, 0, temp);
}
outputStream.flush();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
使用UDP协议

==>UDPClient.java

[java] view plaincopyprint?
package mars;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

public class UDPClient {
 public static void main(String[] args) {
 try {
 //首先创建一个DatagramSocket对象
 DatagramSocket socket = new DatagramSocket(4567);
 //创建一个InetAddree
 InetAddress serverAddress = InetAddress.getByName("183.30.189.14");
 String str = "hello";
 byte data [] = str.getBytes();
 //创建一个DatagramPacket对象，并指定要讲这个数据包发送到网络当中的哪个地址，以及端口号
 DatagramPacket packet = new DatagramPacket(data,data.length,serverAddress,4567);
 //调用socket对象的send方法，发送数据
 socket.send(packet);
 } catch (Exception e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }
}