如何通过HTTP下载文件并将其内容存储在Java中的String中 [英] How to download a file over HTTP and store its content in a String in Java

问题描述

我正在尝试通过HTTP下载文件，并将其内容存储在字符串中，如标题所示。我的方法是：

  URL u =新的URL（http：//url/file.txt）; 
 
 ByteArrayBuffer baf = new ByteArrayBuffer（32）; 
 InputStream in =（InputStream）u.getContent（）; 
 BufferedInputStream bis = new BufferedInputStream（in）; 
 
 int buffer; 
 while（（buffer = bis.read（））！= -1）{
 baf.append（（byte）buffer）; 
} 
 
 bis.close（）; 
 in.close（）; 
  

当尝试从流中读取时，代码将失败，报告流关闭。 >

如果您尝试通过浏览器访问该文件，则不会将其作为文本，而不是作为要下载的文件。

我没有在任何地方搜索网页，所以有一点洞察力将不胜感激！

谢谢。

解决方案

查看来自Apache Commons的HttpClient ，特别是 getResponseBodyAsString（）方法。

I'm trying to download a file over HTTP and store its contents in a String, as the title says. My approach is thus:

URL u = new URL("http://url/file.txt");

ByteArrayBuffer baf = new ByteArrayBuffer(32);
InputStream in = (InputStream) u.getContent(); 
BufferedInputStream bis = new BufferedInputStream(in);

int buffer;
while((buffer = bis.read()) != -1){
    baf.append((byte)buffer);
}

bis.close();
in.close();

The code fails when it tries to read from the stream, reporting the stream is closed.

Now if you try to access the file through a browser, it won't be served as text, rather as a file to be downloaded.

I haven't gotten anywhere searching the web on this, so a little insight would be much appreciated!

Thanks.

解决方案

Check out HttpClient from Apache Commons, in particular the getResponseBodyAsString() method.

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