[英]ServiceLoader doesn't load implementation
I really did a lot of research before asking this, it seems like I'm missing something. 在问这个之前我真的做了很多研究,似乎我错过了一些东西。 I try to implement a ServiceLoader and therefore made an example class:
我尝试实现一个ServiceLoader,因此创建了一个示例类:
the code is simple: 代码很简单:
testInterface.java testInterface.java
package com.test;
public interface testInterface {
void test();
}
testImpl.java testImpl.java
package com.test;
public class testImpl implements testInterface {
@Override
public void test() {
System.out.println("test");
}
}
Main.java Main.java
package com.test;
import java.util.ServiceLoader;
public class Main {
public static void main(String[] args) {
ServiceLoader<testInterface> serviceLoader = ServiceLoader.load(testInterface.class);
serviceLoader.iterator().next().test();
}
}
com.test.testInterface com.test.testInterface
com.test.testImpl
I keep getting a NoSuchElementException at the iterator part which means that the implementation was not loaded. 我一直在迭代器部分得到NoSuchElementException,这意味着没有加载实现。 Thanks in advance.
提前致谢。
Put your META-INF/services/ into resources/ and add it to the Eclipse project as a source folder. 将META-INF / services /放入资源/并将其作为源文件夹添加到Eclipse项目中。 It will be automatically included in the JAR file when you compile.
编译时它将自动包含在JAR文件中。
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