How does Spring @RequestMapping work?

Question

As you know, is @RequestMappingused to intercept a HttpServletRequest.

I want to know how @Controller @RequestMappingtogether a request from a client can bind to a specific method inside the java class?

I want to write a similar Java application to perform the same function. Imagine we have a class like this:

@Actor
public class JavaForever {

  @Department(value="IT")
  public void departmentIT(){...}

  @Department(value="Physic")
  public void departmentPhysic(){...}
}

And the StudentBean class:

public class StudentBean {

    private String department;
    private Integer age;
    //Other class variable
    //Getters & Setters
}

and finally, we have a test class as follows:

public class TestApplication {
   //getStudentFromDatabaseMethod() implementation here

   public static void main(String[] agrs){
     List<StudentBean> allStudents = new TestApplication().getStudentFromDatabaseMethod();
   //other codes
   }
}

As you can see, it getStudentFromDatabaseMethod()returns List< StudentBean>, now the question arises, how to make this method get an interception with our annotation @Department, which is in the JavaForeverclass before, and returns any value ...

How can we do this???

Answer 1

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• Spring @Controller @RequestMapping.
• Spring URL @RequestMapping.
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