Question

我希望创建一种某种类型的路由器来将HTTP请求从HTTP客户端重定向到servlet（它们预先形成一个协商过程。更多背景：我希望从Windows到Windows服务器进行身份验证，通过重定向的Unix网络服务器）。

我的servlet在http://localhost:8080 我的重定向器在8081

所以，我写了这个：

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class Redirect {

    /**
     * @param args
     * @throws IOException
     * @throws InterruptedException 
     */
    public static void main(String[] args) throws IOException, InterruptedException {
        ServerSocket ss = new ServerSocket(8081);
        Socket s = new Socket("localhost", 8080);
        Socket l = ss.accept();
        l.setKeepAlive(true);
        s.setKeepAlive(true);
        OutputStream os = s.getOutputStream();
        InputStream is = l.getInputStream();
        Thread t1 = new Thread(new MyReader(is, os,"#1"));
        t1.start();
        InputStream is2 = s.getInputStream();
        OutputStream os2 = l.getOutputStream();
        Thread t2 = new Thread(new MyReader(is2, os2,"#2"));
        t2.start();
    }

    public static class MyReader implements Runnable {
        private InputStream _i;
        private OutputStream _o;
        private String _id;

        public MyReader(InputStream i, OutputStream o, String id) {
            _i = i;
            _o = o;
            _id = id;
        }

        @Override
        public void run() {
            try {
                int x;
                x = _i.read();
                while (x != -1) {
                    System.out.println(_id);
                    _o.write(x);
                    _o.flush();
                    x = _i.read();
                }
                System.out.println(x);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

对大多数servlet都可以正常工作！那我的问题是什么？我的servlet是一个持久的http://en.wikipedia.org/wiki/HTTP_persistent_connection，就是它连接= keep-alive并且做一个完整的来回消息传递。

我做错了什么？我以为我可以运行两个MyReader线程，并且它们将阻塞直到新信息出现，但它们会阻止它们。

这是我的客户：

public class Client {
    public static void main(String[] args) throws IOException {
        URL u = new URL("http://localhost:8081/Abc/Def");
        HttpURLConnection huc = (HttpURLConnection)u.openConnection();
        huc.setRequestMethod("GET");
        huc.setDoOutput(true);
        huc.connect();
        InputStream is = huc.getInputStream();//The all auth process is done here
             //and HttpUrlConnection support it. If I change 8081 to 8080, it works

}

Answer 1

尝试在启动t2线程后添加无限等待循环，如下所示

              while ( true) {
                  sleep(1000);
              }

使用套接字重定向持久性HTTP请求和响应

1 个答案: