java.io.IOException：服务器返回HTTP响应代码：403表示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!

答

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.

java.io.IOException：服务器返回HTTP响应代码：403表示URL

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