package com.itheima.controller;

import com.itheima.domain.user;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.support.BindingAwareModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

@Controller
//@RequestMapping("/user")
public class UserController {
    @RequestMapping("/quick")
    public String quick() {
        System.out.println("quick");
        return "html.jsp";
    }

    @RequestMapping(value = "/quick1",produces = "application/json;charset=utf-8")
    public String quick1(Model model1,String username) {
        model1.addAttribute("username", username);
        return "html.jsp";
    }

    @RequestMapping("/quick2")
    public ModelAndView quick2(ModelAndView modelAndView) {
        modelAndView.setViewName("html.jsp");
        modelAndView.addObject("username","itheima");
        return modelAndView;

    }

    @RequestMapping("/quick3")
    @ResponseBody
    public user quick3() {
        user user = new user();
        user.setName("yy");
        user.setAge(18);
        return user;
    }

}

package com.itheima.controller;

import com.itheima.domain.user;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.support.BindingAwareModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

@Controller
//@RequestMapping("/user")
public class UserController {
    @RequestMapping("/quick")
    public String quick() {
        System.out.println("quick");
        return "html.jsp";
    }

    @RequestMapping(value = "/quick1",produces = "application/json;charset=utf-8")
    public String quick1(Model model1,String username) {
        model1.addAttribute("username", username);
        return "html.jsp";
    }

    @RequestMapping("/quick2")
    public ModelAndView quick2(ModelAndView modelAndView) {
        modelAndView.setViewName("html.jsp");
        modelAndView.addObject("username","itheima");
        return modelAndView;

    }

    @RequestMapping("/quick3")
    @ResponseBody
    public user quick3() {
        user user = new user();
        user.setName("yy");
        user.setAge(18);
        return user;
    }

}