[英]Java: How do I open a text file in test that is in src/main/resources?
my project struture looks like 我的项目结构看起来像
project/
src/main/
java/ ...
resources/
definitions.txt
test/
CurrentTest.java
resources/ ...
In my test I need to open the definitions.txt
在我的测试中,我需要打开definitions.txt
I do 我做
@Test
public void testReadDesiredDefinitions() throws PersistenceException, IOException {
final Properties definitions = new Properties();
definitions.load(new ResourceService("/").getStream("desiredDefinitions"));
System.out.println(definitions);
}
When I run this, I get 当我跑这个时,我明白了
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:418)
at java.util.Properties.load0(Properties.java:337)
at java.util.Properties.load(Properties.java:325)
How can I read this text file? 我该如何阅读此文本文件?
Thanks 谢谢
The "current directory" of unit tests is usually the project directory, so use this: 单元测试的“当前目录”通常是项目目录,因此使用:
File file = new File("src/main/resources/definitions.txt");
and load the properties from the file: 并从文件加载属性:
definitions.load(new FileInputStream(file));
If this doesn't work, or you want to check what the current directory is, just print out the path and it will be obvious what the current directory is: 如果这不起作用,或者你想检查当前目录是什么,只需打印出路径,很明显当前目录是什么:
System.out.println(file.getAbsolutePath());
You can make use of Class#getResourceAsStream to easily create a stream to a resource file. 您可以使用Class#getResourceAsStream轻松创建资源文件的流。
definitions.load(getClass().getResourceAsStream("/main/java/resources/definitions.txt"));
The location parameter should be the relative file path with regards to your project base (my guess was main). location参数应该是与项目库有关的相对文件路径(我的猜测是主要的)。
If your resources
directory is a source folder, you can use /resources/definitions.txt
as a correct path. 如果resources
目录是源文件夹,则可以使用/resources/definitions.txt
作为正确的路径。
I don't know about ResourceService
but this should work: 我不知道ResourceService
但这应该工作:
final Properties definitions = new Properties();
definitions.load(getClass().getResourceAsStream("/resources/definitions.txt"))
文件文件=新文件(“../ src / main / resources / definitions.txt”);
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