static|static 和 @postconstruct区别

static 和 @postconstruct区别:
static blocks are invoked when the class is being initialized, after it is loaded. The dependencies of your component haven't been initialized yet. That is why you get a NullPointerException (Your dependencies are null) .
Move your code to a method annotated with @PostConstruct. This will ensure that your code will run when all the dependencies of your component are initialized
翻译:static模块会被引入,当class加载后。你的component组件的依赖还没有初始化。这就是为什么你的代码块会报空指针异常。(你的依赖都是null)
【static|static 和 @postconstruct区别】把你的代码移到一个@PostConstruct声明的方法块中,这样可以确保你的代码执行在所有组件都加载以后。

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