Spring Assembly Core Notes

(1) Automatic assembly

Turn on Componentscan (automatic scanning) by using the annotation @component in the class (the default bean ID is the first character of the class name lowercase), using @autowired to implement the automatic assembly of attributes, constructors, member functions. @Qulifer annotations explicitly specify the ID of the bean to resolve ambiguity.

(2) Javaconfig Assembly

@Configuration annotations are indicated for the configuration class.

@Bean display the declared Bean ID defaults to the first character of the method name lowercase. You can modify the ID name by using the Name property.

@Spring intercepts all method calls labeled @bean, ensuring that the bean returned by the method is not actually called every time.

(3) XML assembly

Spring Assembly Core Notes