guice 中的注入并不适用于任何地方

Question

我正在尝试通过 Google Guice @Inject 注释注入一些服务：

 @Inject
 Service service;

此注入有效，但并非在所有地方。当它不起作用时，我会捕获空指针。有什么问题？显然，所有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.