Java HttpsServer 多线程

Question

Java HttpsServer 多线程

cai*_*355 5 java https multithreading http threadpoolexecutor

我已经在 Java 中设置了一个 HttpsServer。我所有的沟通都完美无缺。我设置了多个上下文，加载了自签名证书，甚至基于外部配置文件启动。

我现在的问题是让多个客户端能够访问我的安全服务器。为此，我想以某种方式对来自 HttpsServer 的请求进行多线程处理，但不知道该怎么做。下面是我的基本 HttpsConfiguration。

  HttpsServer server = HttpsServer.create(new InetSocketAddress(secureConnection.getPort()), 0);
  SSLContext sslContext = SSLContext.getInstance("TLS");

  sslContext.init(secureConnection.getKeyManager().getKeyManagers(), secureConnection.getTrustManager().getTrustManagers(), null);

  server.setHttpsConfigurator(new SecureServerConfiguration(sslContext));
  server.createContext("/", new RootHandler());
  server.createContext("/test", new TestHandler());
  server.setExecutor(Executors.newCachedThreadPool());
  server.start();

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其中 secureConnection 是包含服务器设置和证书信息的自定义类。

我试图将 executor 设置为Executors.newCachedThreadPool()和其他几个。然而，它们都产生了相同的结果。每个人都以不同的方式管理线程，但第一个请求必须在第二个可以处理之前完成。

我也尝试编写自己的 Executor

public class AsyncExecutor extends ThreadPoolExecutor implements Executor
{
   public static Executor create()
   {
      return new AsyncExecutor();
   }

   public AsyncExecutor()
   {
      super(5, 10, 10000, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(12));
   }

   @Override
   public void execute(Runnable process)
   {
      System.out.println("New Process");

      Thread newProcess = new Thread(process);
      newProcess.setDaemon(false);

      newProcess.start();

      System.out.println("Thread created");
   }
}

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不幸的是，结果与其他 Executor 相同。

为了进行测试，我使用 Postman 来访问 /Test 端点，该端点通过执行Thread.sleep(10000). 在运行时，我使用 Chrome 浏览器访问根端点。直到 10 秒睡眠结束后才会加载根页面。

关于如何处理对 HTTPS 服务器的多个并发请求的任何想法？

为了便于测试，我使用标准 HttpServer 复制了我的场景，并将所有内容压缩到一个 Java 程序中。

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;

public class Example
{
   private final static int PORT = 80;
   private final static int BACKLOG = 10;

   /**
    * To test hit:
    * <p><b>http://localhost/test</b></p>
    * <p>This will hit the endoint with the thread sleep<br>
    * Then hit:</p>
    * <p><b>http://localhost</b></p>
    * <p>I would expect this to come back right away. However, it does not come back until the
    * first request finishes. This can be tested with only a basic browser.</p>
    * @param args
    * @throws Exception
    */
   public static void main(String[] args) throws Exception
   {
      new Example().start();
   }

   private void start() throws Exception
   {
      HttpServer server = HttpServer.create(new InetSocketAddress(PORT), BACKLOG);

      server.createContext("/", new RootHandler());
      server.createContext("/test", new TestHandler());
      server.setExecutor(Executors.newCachedThreadPool());
      server.start();

      System.out.println("Server Started on " + PORT);
   }

   class RootHandler implements HttpHandler
   {
      @Override
      public void handle(HttpExchange httpExchange) throws IOException
      {
         String body = "<html>Hello World</html>";

         httpExchange.sendResponseHeaders(200, body.length());
         OutputStream outputStream = httpExchange.getResponseBody();

         outputStream.write(body.getBytes("UTF-8"));
         outputStream.close();
      }
   }

   class TestHandler implements HttpHandler
   {
      @Override
      public void handle(HttpExchange httpExchange) throws IOException
      {
         try
         {
            Thread.sleep(10000);
         }
         catch (InterruptedException e)
         {
            e.printStackTrace();
         }

         String body = "<html>Test Handled</html>";

         httpExchange.sendResponseHeaders(200, body.length());
         OutputStream outputStream = httpExchange.getResponseBody();

         outputStream.write(body.getBytes("UTF-8"));
         outputStream.close();
      }
   }
}

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Answer 1

Fem*_*emi 0

尝试指定非零的最大积压（的第二个参数create()）：

HttpsServer server = HttpsServer.create(new InetSocketAddress(secureConnection.getPort()), 10);

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