添加網絡權限
<uses-permission android:name="android.permission.INTERNET"/>
1,服務器端:這是個純java的project,單獨在一個工程
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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
public class ServerSocketText {
public static void main(String[] args) {
new ServerThread().start();
}
}
// 創建一個線程在後臺監聽
class ServerThread extends Thread {
private static int Port = 19001;
ServerSocket serversocket = null;
public void run() {
try {
// 創建一個serversocket對象,並讓他在Port端口監聽
serversocket = new ServerSocket(Port);
while (true) {
// 調用serversocket的accept()方法,接收客戶端發送的請求
Socket socket = serversocket.accept();
BufferedReader buffer = new BufferedReader(
new InputStreamReader(socket.getInputStream()));
// 讀取數據
String msg = buffer.readLine();
System.out.println("msg:" + msg);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
serversocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
2,客戶端:這是個android的客戶端,用於發送消息
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import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Enumeration;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class Client extends Activity {
private static String IpAddress = "56.152.16.5";
private static int Port = 10000;
private EditText edittext = null;
private Button send = null;
Socket socket = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
edittext = (EditText) findViewById(R.id.edittext);
send = (Button) findViewById(R.id.send);
send.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
sendMsg();
}
});
}
// 發送信息
public void sendMsg() {
try {
// 創建socket對象,指定服務器端地址和端口號
socket = new Socket(IpAddress, Port);
// 獲取 Client 端的輸出流
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket.getOutputStream())), true);
// 填充信息
out.println(edittext.getText());
System.out.println("msg=" + edittext.getText());
// 關閉
} catch (UnknownHostException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
} finally {
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}