Question

网址：http://www.teamliquid.net/replay/download.php?replay=1830是指向.rep文件的下载链接。

我的问题是：如何在java中下载这个内容，知道原始rep文件的名称，以便用定义的前缀保存它，比如path / _.rep

//我试图从java运行wget但是我没有看到如何获取原始文件的名称。

Answer 1

获取重定向的网址

http://www.teamliquid.net/replay/upload/coco%20vs%20snssoflsekd.rep

您可以从此网址获取文件名。

获取重定向的URL很棘手。请参阅我对如何使用Apache HttpClient 4进行此问题的回答，

HttpClient 4 - how to capture last redirect URL

编辑：以下是使用HttpClient 4.0的示例

String url = "http://www.teamliquid.net/replay/download.php?replay=1830";
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(url);
HttpContext context = new BasicHttpContext(); 
HttpResponse response = httpClient.execute(httpget, context); 
if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK)
    throw new IOException(response.getStatusLine().toString());
HttpUriRequest currentReq = (HttpUriRequest) context.getAttribute( 
    ExecutionContext.HTTP_REQUEST);
String currentUrl = URLDecoder.decode(currentReq.getURI().toString(), "UTF-8");
int i = currentUrl.lastIndexOf('/');
String fileName = null;
if (i < 0) {
    fileName = currentUrl;
} else {
    fileName = currentUrl.substring(i+1);
}
OutputStream os = new FileOutputStream("/tmp/" + fileName);
InputStream is = response.getEntity().getContent();
byte[] buf = new byte[4096];  
int read;  
while ((read = is.read(buf)) != -1) {  
   os.write(buf, 0, read);  
}  
os.close();

运行此代码后，我得到了这个文件，

/tmp/coco vs snssoflsekd.rep

从php页面下载java中的多媒体内容

1 个答案: