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在Java中,处理并发请求通常是通过多线程和线程池来实现的。以下是处理并发请求的一些建议:
public class MyThread extends Thread {
private Socket clientSocket;
public MyThread(Socket clientSocket) {
this.clientSocket = clientSocket;
}
@Override
public void run() {
// 处理客户端请求
}
}
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class ThreadPoolServer {
private int port;
private ExecutorService executorService;
public ThreadPoolServer(int port) {
this.port = port;
this.executorService = Executors.newFixedThreadPool(10); // 创建一个固定大小的线程池
}
public void start() {
// 初始化服务器并监听端口
}
private class ClientHandler implements Runnable {
private Socket clientSocket;
public ClientHandler(Socket clientSocket) {
this.clientSocket = clientSocket;
}
@Override
public void run() {
// 处理客户端请求
}
}
// 当有新的客户端连接时,将请求提交给线程池处理
private void handleClient(Socket clientSocket) {
executorService.submit(new ClientHandler(clientSocket));
}
}
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.util.Set;
public class NIOServer {
private int port;
public NIOServer(int port) {
this.port = port;
}
public void start() throws IOException {
Selector selector = Selector.open();
ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
serverSocketChannel.bind(new InetSocketAddress(port));
serverSocketChannel.configureBlocking(false);
serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT);
while (true) {
selector.select();
Set<SelectionKey> selectedKeys = selector.selectedKeys();
Iterator<SelectionKey> iterator = selectedKeys.iterator();
while (iterator.hasNext()) {
SelectionKey key = iterator.next();
if (key.isAcceptable()) {
// 处理新的客户端连接
} else if (key.isReadable()) {
// 处理客户端请求
}
iterator.remove();
}
}
}
}
根据实际需求和场景选择合适的处理并发请求的方法。对于简单的应用,可以使用多线程;对于高并发场景,可以考虑使用线程池或NIO。
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