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Java编程中HttpURLConnection的连接超时中的异常

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这是问题所在,我想编写一个Java程序来增加特定URL的页面命中率 . 目前我只是在互联网上浏览并获得一些基本程序来进行测试 . 但是,我甚至无法让程序运行......下面是我的程序和相关输出 .

Eclipse,Java程序:

URL url = new URL("http://www.baidu.com");
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("GET");
    connection.connect();

    int code = connection.getResponseCode();
    System.out.println("Response code of the object is " + code);
    if (code == 200) {
        System.out.println("OK");
    }

以下是输出:

线程“main”中的异常java.net.ConnectException:连接超时:在java.net.PlainSocketImpl上的java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:383)处连接java.net.PlainSocketImpl.socketConnect(本机方法) .connectToAddress(PlainSocketImpl.java:245),java.net.SocksSocketImpl.connect(PlainSocketImpl.java:232),java.net.SocksSocketImpl.connect(SocksSocketImpl.java:377),java.net.Socket.connect(Socket . java.net:539)at java.net.Socket.connect(Socket.java:488)at sun.net.NetworkClient.doConnect(NetworkClient.java:175)at sun.net.www.http.HttpClient.openServer(HttpClient.java) :407)at sun.net.www.http.HttpClient.openServer(HttpClient.java:542)at sun.net.www.http.HttpClient . (HttpClient.java:246)at sun.net.www.http.HttpClient .New(HttpClient.java:319)at sun.net.www.http.HttpClient.New(HttpClient.java:336)at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:980)at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLCon nection.java:921)at the net.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:846)at HttpRedirectExample2.main(HttpRedirectExample2.java:14)

我搜索了很多资源,其中一些建议是防火墙问题 . 但是,我不认为我的电脑有这个问题,因为我已经成功编写了一个程序来打开IE浏览器并重定向到谷歌 .

有人帮我解决这个问题吗?

Current step, I am wondering whether is my proxy issue as I work for an company and the network is using in a proxy.

如果您能提出任何建议,我也欢迎您 . 提前致谢!

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