getResourceAsStream（）始终返回null [英] getResourceAsStream() is always returning null

问题描述

我在Java Web应用程序中有以下结构：

I have the following structure in a Java Web Application:

TheProject
  -- [Web Pages]
  -- -- [WEB-INF]
  -- -- -- abc.txt
  -- -- index.jsp
  -- [Source Packages]
  -- -- [wservices]
  -- -- -- WS.java

In WS.java ，我在Web方法中使用以下代码：

In WS.java, I am using the following code in a Web Method:

InputStream fstream = this.getClass().getResourceAsStream("abc.txt");

但它始终返回null。我需要从该文件中读取，并且我读到如果您将文件放在 WEB-INF 中，您可以使用 getResourceAsStream ，但该方法始终返回 null 。

But it is always returning a null. I need to read from that file, and I read that if you put the files in WEB-INF, you can access them with getResourceAsStream, yet the method is always returning a null.

关于我可能在做什么的任何想法错误？

Any ideas of what I may be doing wrong?

顺便说一句，奇怪的是这是有效的，但在我执行清理和构建之后项目，它突然停止工作：/

Btw, the strange thing is that this was working, but after I performed a Clean and Build on the Project, it suddenly stopped working :/

推荐答案

据我所知，文件必须在<$的文件夹中c $ c>'this'类驻留，即不在 WEB-INF / classes 中，但嵌套得更深（除非您在默认包中写入） ）：

To my knowledge the file has to be right in the folder where the 'this' class resides, i.e. not in WEB-INF/classes but nested even deeper (unless you write in a default package):

net/domain/pkg1/MyClass.java  
net/domain/pkg1/abc.txt

将文件放入java源代码应该可以工作，编译器将该文件与类文件一起复制。

Putting the file in to your java sources should work, compiler copies that file together with class files.

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