写入从getResourceAsStream（）返回的文件流 [英] Write to a file stream returned from getResourceAsStream()

问题描述

我从 getResourceAsStream（）得到了一个 InputStream ，我设法从文件中读取返回 InputStream 到 BufferedReader 。

我也可以写入文件吗？

解决方案

不是直接的，没有 - getResourceAsStream（）是为了在只读资源上返回一个视图。

如果你知道这个资源是一个可写文件，你可以跳过一些箍，例如

  URL resourceUrl = getClass（）。getResource（path）; 
 File file = new File（resourceUrl.toURI（））; 
 OutputStream output = new FileOutputStream（file）; 
  

这应该在unix风格的系统上很好地工作，但是windows文件路径可能会导致消化不良。试试看，但是，你可能会好的。

I am getting a a InputStream from getResourceAsStream(), and I managed to read from the file by passing the returned InputStream to a BufferedReader.

Is there any way I can write to the file as well?

解决方案

Not directly, no - getResourceAsStream() is intended to return a view on read-only resources.

If you know that the resource is a writeable file, though, you can jump through some hoops, e.g.

URL resourceUrl = getClass().getResource(path);
File file = new File(resourceUrl.toURI());
OutputStream output = new FileOutputStream(file);

This should work nicely on unix-style systems, but windows file paths might give this indigestion. Try it and find out, though, you might be OK.

这篇关于写入从getResourceAsStream（）返回的文件流的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！