guice中的注射无处不在

Question

我试图通过Google Guice @Inject注释注入一些服务：

 @Inject
 Service service;

此注入工作正常，但并非在所有地方都有效。当它没有工作时我捕获空指针。有什么问题？显然，所有的尝试都在单个项目中

Answer 1

If you do not create your instances with .getInstance() nothing will be injected. The annotation is not magic.

You have to use requestStaticInjection() on static references that are annotated with @Inject.

This is all explained in extreme detail in the Guice documentation.