java - 由于连接超时，无法通过 ImageIO.read(url) 获取图像

Question

下面的代码似乎总是失败:

    URL url = new URL("http://userserve-ak.last.fm/serve/126/8636005.jpg");
    Image img = ImageIO.read(url);
    System.out.println(img);

我检查了网址，它是一个有效的 jpg 图片。我得到的错误是:

Exception in thread "main" javax.imageio.IIOException: Can't get input stream from URL!
at javax.imageio.ImageIO.read(ImageIO.java:1385)
at maestro.Main2.main(Main2.java:25)

Caused by: java.net.ConnectException: Connection timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:310)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:176)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:163)
at java.net.Socket.connect(Socket.java:546)
at java.net.Socket.connect(Socket.java:495)
at sun.net.NetworkClient.doConnect(NetworkClient.java:174)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
at sun.net.www.http.HttpClient.(HttpClient.java:240)
at sun.net.www.http.HttpClient.New(HttpClient.java:321)
at sun.net.www.http.HttpClient.New(HttpClient.java:338)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:814)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:755)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:680)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1005)
at java.net.URL.openStream(URL.java:1029)
at javax.imageio.ImageIO.read(ImageIO.java:1383)
... 1 more

Java Result: 1

这是什么意思？ 有趣的是，如果我将我的互联网连接更改为邻居的无线网络连接，它突然就可以工作了。

Answer 1

这对我有用。 :)

URL url = new URL("http://userserve-ak.last.fm/serve/126/8636005.jpg");
Image image = ImageIO.read(url.openStream());
System.out.println(image);

我知道我迟到了。因为，即使我也遇到了同样的问题，我想把它放在一起，因为它会对某些人有所帮助。 :)