idea+springboot+jsp+mybatis+mapper注解

package com.zrt.springboot.controller; import com.zrt.springboot.mapper.PersonMapper; import com.zrt.springboot.vo.person; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import java.util.HashMap; import java.util.List; import java.util.Map; @Controller public class PersonController { @Autowired public PersonMapper mapperperson; @RequestMapping("/listPerson") public String listStudent(Model model) { List<person> person = mapperperson.findAll(); model.addAttribute("personList", person); System.out.println("person--------"+person.size()); return "personList"; } @RequestMapping("/add") public String add(){ return "add"; } @RequestMapping("/addPerson") @ResponseBody public Map<String,Object> savePerson(String name,String age,String address){ Map<String,Object>res = new HashMap<>(); try { Map<String, Object> map = new HashMap<String, Object>(); map.put("name", name); map.put("age", age); map.put("address", address); mapperperson.addPerson(map); res.put("msg","success"); }catch (Exception e){ e.printStackTrace(); res.put("msg","false"); } return res; } }