HttpClient的连接不关闭

问题描述：

vert.x core: 3.3.0

语境

我只是想在核心例子io.vertx.example.core.http.simple.Client运行HTTP客户端。运行此示例时，发现已建立的连接在完成请求后未关闭。

服务器端我没有看到任何问题。因为在尝试使用jmeter和服务器时它的工作正常。所以我认为问题出在HttpClient上。

任何人都可以帮助我吗？

在此先感谢。步骤来重现

running io.vertx.example.core.http.simple.Server code 
running io.vertx.example.core.http.simple.Client code

额外

即使该请求后，以下示出和响应结束。同时给予 LINUX

lsof -i -P 
java 32551 USER 223u IPv4 16264097 0t0 TCP localhost:8080->localhost:26980 (ESTABLISHED) 
java 32634 USER 218u IPv4 16264087 0t0 TCP localhost:26980->localhost:8080 (ESTABLISHED)

WINDOWS

TCP 127.0.0.1:8080   FSSCHND12957:56893  ESTABLISHED 
TCP 127.0.0.1:56893  FSSCHND12957:8080  ESTABLISHED

试图在Linux和Windows系统。

客户端代码

package io.vertx.example.core.http.simple; 

import io.vertx.core.AbstractVerticle; 
import io.vertx.example.util.Runner; 

/* 

    @author Tim Fox 
    */ 
    public class Client extends AbstractVerticle { 

    // Convenience method so you can run it in your IDE 
    public static void main(String[] args) { 
    Runner.runExample(Client.class); 
    } 

    @Override 
    public void start() throws Exception { 
    vertx.createHttpClient().getNow(8080, "localhost", "/", resp -> { 
    System.out.println("Got response " + resp.statusCode()); 
    resp.bodyHandler(body -> { 
    System.out.println("Got data " + body.toString("ISO-8859-1")); 
    }); 
    }); 
    } 
    }

服务器代码

package io.vertx.example.core.http.simple; 

import io.vertx.core.AbstractVerticle; 
import io.vertx.example.util.Runner; 

/* 

    @author Tim Fox 
    */ 
    public class Server extends AbstractVerticle { 

    // Convenience method so you can run it in your IDE 
    public static void main(String[] args) { 
    Runner.runExample(Server.class); 
    } 

    @Override 
    public void start() throws Exception { 
    vertx.createHttpServer().requestHandler(req -> { 
    req.response().putHeader("content-type", "text/html").end(" 
    Hello from vert.x! 
    "); 

    }).listen(8080); 
    } 
    }

答

我们必须要完成HttpClient的，我们通常做的java中。只有end（）不会关闭连接。 httpClient.close（）是必需的....这解决了我的问题..

修改后的代码：

public class Client extends AbstractVerticle { 

// Convenience method so you can run it in your IDE 
public static void main(String[] args) { 
    Runner.runExample(Client.class); 
} 

@Override 
public void start() throws Exception { 
    HttpClient httpClient = vertx.createHttpClient().getNow(8080, "localhost", "/", resp -> { 
     System.out.println("Got response " + resp.statusCode()); 
     resp.bodyHandler(body -> { 
      System.out.println("Got data " + body.toString("ISO-8859-1")); 
      httpClient.close(); 
     }); 
    }); 
} 
}

HttpClient的连接不关闭

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