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74. ServerSocket
在纠结了 N 久之后，终于动手写程序完成了 Socket 全双工实验。实验证实，Socket 在接受的同时，还可以发送报文。
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package com.diguage.truman.net;
import org.junit.jupiter.api.Test;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.locks.LockSupport;
/**
* Socket 全双工演示示例
*
* @author D瓜哥, https://www.diguage.com/
* @since 2020-03-25 23:03
*/
public class SocketFullDuplexTest {
private int port = 11233;
@Test
public void testServer() throws IOException {
ServerSocket serverSocket = new ServerSocket(port);
Socket socket = serverSocket.accept();
InputStream inputStream = socket.getInputStream();
new Thread(() -> {
InputStreamReader reader = new InputStreamReader(new BufferedInputStream(inputStream));
BufferedReader bufferedReader = new BufferedReader(reader);
try {
String line = null;
while ((line = bufferedReader.readLine()) != null) {
System.out.println(line);
Thread.sleep(100);
}
} catch (Throwable e) {
e.printStackTrace();
}
}).start();
OutputStream outputStream = socket.getOutputStream();
new Thread(() -> {
try {
for (int i = 0; i < Integer.MAX_VALUE; i++) {
String msg = "S-" + i + "\n";
System.out.println("msg = " + msg);
outputStream.write(msg.getBytes(StandardCharsets.UTF_8));
outputStream.flush();
Thread.sleep(100);
}
} catch (Throwable e) {
e.printStackTrace();
}
}).start();
LockSupport.park();
}
@Test
public void testClient() throws IOException {
Socket socket = new Socket("localhost", port);
InputStream inputStream = socket.getInputStream();
new Thread(() -> {
InputStreamReader reader = new InputStreamReader(new BufferedInputStream(inputStream));
BufferedReader bufferedReader = new BufferedReader(reader);
try {
String line = null;
while ((line = bufferedReader.readLine()) != null) {
System.out.println(line);
Thread.sleep(100);
}
} catch (Throwable e) {
e.printStackTrace();
}
}).start();
OutputStream outputStream = socket.getOutputStream();
new Thread(() -> {
try {
for (int i = 0; i < Integer.MAX_VALUE; i++) {
String msg = "C-" + i + "\n";
System.out.println("msg = " + msg);
outputStream.write(msg.getBytes(StandardCharsets.UTF_8));
outputStream.flush();
Thread.sleep(100);
}
} catch (Throwable e) {
e.printStackTrace();
}
}).start();
LockSupport.park();
}
}
