@RequestMapping role

@RequestMapping role

• @RequestMapping Is used to process a request for comments address mapping, it can be used for class or method.
  • For the class , the response to the request by any methods that are class address as the parent paths ;
  • A method , the upper represents an additional path in the parent class annotated method will access the address to the method.

Controller level code:

package com.example.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;


/**
 * 用于类上，可以没有
 */
@Controller
@RequestMapping("/demo")
public class DemoController {

    /**
     * 用于方法上，必须有
     */
    @GetMapping("/login")
    public String login() {
        return "login";
    }

}

• Local browser input: http://localhost:8080/demo/loginwill jump to login.htmlpage