无法使用Maven访问资源目录中的文件(使用Eclipse IDE) [英] Can't access to files in resources directory with Maven (with Eclipse IDE)
问题描述
我有几个小时的问题,我尝试了所有在教程中找到的解决方案。
很简单:我无法访问资源文件。我尝试打开一个我已经放在 src / main / resources
和 src / test / resources
中的文件。 / p>
我有一个简单的Java项目,我使用Maven,Eclipse作为IDE,使用m2e插件。
我想使用资源过滤Maven,具有不同的配置文件,还有我的 POM.xml
:
< pre class =lang-xml prettyprint-override>
< build>
< plugins>
< plugin>
< groupId> org.apache.maven.plugins< / groupId>
< artifactId> maven-compiler-plugin< / artifactId>
< version> 2.3.2< / version>
< configuration>
< source> 1.5< / source>
< target> 1.5< / target>
< debug> false< / debug>
< optimize> true< / optimize>
< / configuration>
< / plugin>
< plugin>
< groupId> org.apache.maven.plugins< / groupId>
< artifactId> maven-resources-plugin< / artifactId>
< version> 2.4< / version>
< configuration>
< encoding> UTF-8< / encoding>
< / configuration>
< / plugin>
< / plugins>
< filters>
< filter> src / main / filters / $ {env} .properties< / filter>
< / filters>
< resources>
< resource>
< directory> src / main / resources< / directory>
< filtering> true< / filtering>
< / resource>
< resource>
< directory> src / test / resources< / directory>
< filtering> true< / filtering>
< / resource>
< / resources>
< / build>
<个人资料>
<个人资料>
< id> LOCAL< / id>
< activate>
< activeByDefault> true< / activeByDefault>
< / activation>
<属性>
< env> local< / env>
< / properties>
< / profile>
< / profiles>
我做了一个简单的测试,在src / java / test:
@Test
public void testOpenResourceFile(){
File testf = new File(/ test.txt);
assertTrue(testf.exists());
}
所以,在Eclipse中,我运行(在我的项目文件夹,在包中查看):
- 运行为> Maven构建>进程资源
- 运行为> Maven build > process-ressources
- 运行为> Maven build> compile
使用env:本地
在测试中,我做:运行为> Junit测试案例。
但它失败...
我查看了Maven生成的目标/测试类目录,文件test.txt在那里。
我在项目编译期间错过了一些步骤,或者我的配置有问题吗?
感谢帮助。
EDIT
我尝试使用文件(test.txt)
和文件(../ test.txt)
。
我喜欢你的问题是
文件testf = new File(/test.txt);
正在寻找一个名为 test.txt的文件
在您计算机的文件系统的根目录。你想要的是资源树的根,你可以通过 getResource
方法:
文件testf = new File(this.getClass()。getResource(/test.txt).toURI());
或者,在静态上下文中,使用包含类的名称:
文件testf =新文件(MyClass.class.getResource(/test.txt).toURI());
当然,您需要为该示例添加错误处理。
I have a problem for a couple of hours, and I tried all the solutions I've found on tutorials.
It's simple: I can't access the resource files. I try to open a file I've put in src/main/resources
and src/test/resources
.
I have a simple Java project and I use Maven, with Eclipse as IDE, with the m2e plugin.
I want to use resources filtering with Maven, with different profiles, and there's my POM.xml
:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
<debug>false</debug>
<optimize>true</optimize>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
<filters>
<filter>src/main/filters/${env}.properties</filter>
</filters>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/test/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<profiles>
<profile>
<id>LOCAL</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<env>local</env>
</properties>
</profile>
</profiles>
And I made a simple test, in src/java/test :
@Test
public void testOpenResourceFile() {
File testf=new File("/test.txt");
assertTrue(testf.exists());
}
So, in Eclipse, I run (on my project folder, in the package view) :
- Run as > Maven build > process-resources
- Run as > Maven build > process-test-ressources
- Run as > Maven build > compile
With env: LOCAL
In the test, I do: Run as > Junit Test Case. But it fail... I looked in target/test-classes directory generated by Maven, and the file test.txt is there.
Did I missed some steps during my project's compilation, or is there a problem with my configuration ?
Thank for help.
EDIT
I tried with File("test.txt")
and File("../test.txt")
as well.
It looks to me like your problem is
File testf = new File( "/test.txt" );
That's looking for a file called test.txt
at the root of your computer's filesystem. What you want is the root of the resource tree, which you get with the getResource
method:
File testf = new File( this.getClass().getResource( "/test.txt" ).toURI() );
Or, in static context, use the name of the containing class:
File testf = new File( MyClass.class.getResource( "/test.txt" ).toURI() );
Of course you'll need to add error handling to that example.
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