blocks|key|5918158|text|将您的文件"test.txt“放入与您的类的java文件相同的目录(相同的包)。然后使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5918159|T.class.getResourceAsStream(+"test.txt"+);|code-block|syntax|javascript|5918160|这是可行的，因为eclipse会自动将文件作为资源复制到类路径中。使用命令行时，您必须手动完成此操作。|5918161|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Put your file "test.txt" into the same directory where the java file of your class is (same package). Then use

<pre><code>T.class.getResourceAsStream( "test.txt" );
</code></pre>

This works, because eclipse automatically copies the file as a resource to the classpath. When using the command line, you have to do this by hand.

blocks|key|2390087|text|还要确保您的文件不匹配任何模式的Preference>Java>Compiler>Building>OutputFolder>Filtered资源：。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2390088|例如，如果您在该字段中设置了*.txt，您将不会获得构建输出的test.txt。|2390089|entityMap^0|G|1M|0|E|5|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

Also make sure your file does not match any pattern of Preference>Java>Compiler>Building>OutputFolder>Filtered resources:.

For example, if you set *.txt in that field, you will not get test.txt to the build output.

blocks|key|4502729|text|有时，您需要显式地告诉eclipse要从源文件夹复制什么类型的文件到分发(类)文件夹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4502730|我有Eclipse+SDK，版本:+3.7.1，内部版本id:+M20110909-1335，Indigo，在这个版本中，我做了以下更改。|4502731|项目->属性->+Java构建路径->源代码(选项卡)+->+Included+(列表项)+->编辑(按钮)将*/.txt添加到现有的*/.java。|4502732|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Sometimes you need to tell eclipse explicitly what types of files to copy from the source folder to the distribution (classes) folder.

i have Eclipse SDK, Version: 3.7.1, Build id: M20110909-1335, Indigo and in this
i did the following changes.

Project -> Properties -> Java Build Path -> Source (tab) -> Included (list item) -> Edit (button) to add */.txt to the existing */.java.

blocks|key|4502774|text|您不应该需要将这些文件添加到相同的目录中才能使其工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4502775|当我创建一个新的Package+and+Source文件夹来保存我的junit测试时，我就出现了这种症状。测试将失败，因为getResourceAsStream返回null。|4502776|下面是如何修复它：|4502777|右键单击Eclipse+Project+Explorer视图中的类(在我的示例中，是新的junit测试类|4502778|生成路径->配置生成路径->+Java生成路径->源选项卡->添加文件夹|offset|length|style|BOLD|4502779|选择保存文件的文件夹。|4502780|entityMap^0|0|0|0|0|0|10|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@$J|W|K|X|L|M]]|9|@]|A|$]]|$1|N|3|O|5|6|7|Y|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|Q|$]]

You shouldn't need to add these files to the same directory to get it to work. 

I was getting this symptom when I created a new Package and Source Folder to hold my junit tests. The tests would fail because getResourceAsStream was returning null.

Here's how to fix it:

Right-click the class (in my case, the new junit test class) in the Eclipse Project Explorer View

Build Path -> Configure Build Path -> Java Build Path -> Source Tab -> Add Folder

Select the folder that holds your files.

blocks|key|2390178|text|将我的/resources/文件夹放入/bin/文件夹为我解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2390179|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Putting my /resources/ folder into my /bin/ folder solved this issue for me.

blocks|key|4502815|text|老问题，但我只是遇到了同样的问题，没有一个答案对我有效(或者我不理解它们)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4502816|在Eclipse中，刷新项目目录，使Eclipse知道资源中添加了一个新文件。为此，右键单击package+explorer视图中的项目(最顶层)目录，然后点击"Refresh“。如果您从eclipse外部编辑现有的资源文件，也是如此:刷新以使eclipse知道所做的编辑。|offset|length|style|BOLD|4502817|entityMap^0|0|A|2|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Old question but I just had the same problem and none of the answers worked for me (or I didn't understand them). 

In Eclipse, refresh the project directory to make Eclipse aware that a new file has been added to resources. For this, right-click on the project (topmost) directory in the package explorer view, then hit "Refresh". The same if you edit an existing resource file from outside eclipse: refresh to make eclipse aware of the edits.

I cannot get getResourceAsStream to find a file. I have put the file in the top level dir, target dir, etc, etc and have tried it with a "/" in front as well. Everytime it returns null.

Any suggestions ? Thanks.

<pre><code>public class T {
 public static final void main(String[] args) {

 InputStream propertiesIS = T.class.getClassLoader().getResourceAsStream("test.txt");

 System.out.println("Break");
 }
}
</code></pre>

Eclipse getResourceAsStream returning null

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我无法让getResourceAsStream查找文件。我已经将文件放在顶层目录、目标目录等位置，并尝试在前面加上一个"/“。每次都返回null。有什么建议吗？谢谢。public class T { public static final void main(String[] args) {  InputStream ...

问Eclipse getResourceAsStream返回null
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