java 在socket中获取post 参数 代码

下面是一个简单的 Java 代码示例，用于从 HTTP POST 请求中获取参数：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class PostParametersExample {

    public static void main(String[] args) throws Exception {
        ServerSocket server = new ServerSocket(80);

        while (true) {
            Socket client = server.accept();

            BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));

            String line;
            while ((line = in.readLine()) != null) {
                if (line.trim().equals("")) {
                    break;
                }
                System.out.println(line);
            }

            StringBuilder payload = new StringBuilder();
            while (in.ready()) {
                payload.append((char) in.read());
            }

            System.out.println("POST parameters: " + payload);

            client.close();
        }
    }
}

该示例监听端口 80，并从客户端接受 HTTP 请求。它首先读取 HTTP 请求头，然后读取 POST 参数，最后将参数打印到控制台上。