java.io.IOException：服务器返回HTTP响应代码：403表示URL [英] java.io.IOException: Server returned HTTP response code: 403 for URL

问题描述

我想从url下载mp3文件：http://upload13.music.qzone.soso.com/30671794.mp3，我总是得到java.io.IOException：服务器返回HTTP响应代码：403 for URL。但是使用浏览器打开网址时没关系。以下是我的代码的一部分：

I want to download the mp3 file from url : "http://upload13.music.qzone.soso.com/30671794.mp3", i always got java.io.IOException: Server returned HTTP response code: 403 for URL. But it's ok when open the url using browser. Below is part of my code:

BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
    URL url = new URL(link);

    URLConnection urlConn = url.openConnection();
    urlConn.addRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");

    String contentType = urlConn.getContentType();

    System.out.println("contentType:" + contentType);

    InputStream is = urlConn.getInputStream();
    bis = new BufferedInputStream(is, 4 * 1024);
    bos = new BufferedOutputStream(new FileOutputStream(
    fileName.toString()));​

有人可以帮助我吗？在此先感谢！

Anyone could help me? Thanks in advance!

推荐答案

而不是在java中使用 URLConnection ，如果你使用 HttpURLConnection 你应该可以从java访问所请求的网页。请尝试以下代码：

Instead of using URLConnection in java, if you use HttpURLConnection you should beable to access the requested web page from java. Try the following code:

 HttpURLConnection httpcon = (HttpURLConnection) url.openConnection(); 
 httpcon.addRequestProperty("User-Agent", "Mozilla/4.76"); 

普通的java使用 urlConnection 不会被接受连接网络。要访问浏览器，它需要执行搜索而不会出现 HTTP响应代码：403为URL

Normal java using urlConnection wont be accepted to access the internet. To access the browser it will need to perform a search without theexception HTTP response code : 403 for URL

编辑（@Mordechai）：无需进行投射，只需添加用户代理。

EDIT (@Mordechai): No need to do the casting, just add the user agent.

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