弹簧注入和注解

Question

Have looked around a lot but am unable to figure out an approach or if it is even possible; here is the question, any directions/word of advice would be very helpful.

Is it possible to have a method annotation say, @TestAnnotation that could be used as follows?

@TestAnnotation(element="something" id="someId")
public void someMethod() {
    AnObj anObj = id.getAnObj();
} 

"someId" is a wrapper around "AnObj" class; 'id' is an instance of "someId" . And whatever is passed to 'element' is to be accepted as a parameter or configuration element to be used in creating an instance of "someId" and assigning it to 'id' .

Thanks and regards

Answer 1

为什么不简单地使用AOP并在@Before方法中完成所有您需要的工作

http://www.journaldev.com/2583/spring-aop-example-tutorial-aspect-advice-pointcut-joinpoint-annotations-xml-configuration

Answer 2

Change it to this:

@TestAnnotation(element="something" id="someId")
public void someMethod(Object something, AnObj anObj) {

} 

Then you can set up an aspect to intercept methods with that annotation and assign the necessary objects to the parameters of the method before calling.