如何在Java中获取URL的HTTP响应代码？ [英] How to get HTTP response code for a URL in Java?

问题描述

请告诉我获取特定网址的响应代码的步骤或代码。

Please tell me the steps or code to get the response code of a particlular URL.

推荐答案

HttpURLConnection ：

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

int code = connection.getResponseCode();

这绝不是一个有力的例子;你需要处理 IOException s等等。但它应该让你开始。

This is by no means a robust example; you'll need to handle IOExceptions and whatnot. But it should get you started.

如果你需要更多功能的东西，请查看 HttpClient 。

If you need something with more capability, check out HttpClient.

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