用户学生信息管理系统，后端使用SpringBoot+mybait+mysql写的简单的信息管理.zip

package com.example.jdbc.controller; import com.example.jdbc.dao.UserDao; import com.example.jdbc.entity.User; //import com.example.jdbc.service.UserService; import org.springframework.format.annotation.DateTimeFormat; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.*; import javax.annotation.Resource; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; @RestController @RequestMapping("/user") @CrossOrigin public class UserController { // @Resource // private UserService userService; @Resource private UserDao userDao; /** * */ @Controller public class HelloController { @RequestMapping(value = {"/","/index.html"}) public String index(){ return "index"; } } /** * describe：主页，展示所有数据，并且有增删改的跳转按钮 * @return */ @GetMapping("/findStu") public List<User> findStu(){ List<User> users = userDao.findAll(); return users; } /** * 插入数据 * @param user * @return */ @DateTimeFormat(pattern = "yyyy-MM-dd") @PostMapping ("/insertGetKey") public Object insertGetKey(User user){ try { userDao.saveUser(user); return "insert uccess"; }catch (Exception e){ return "Can not input null"; } } /** * 删除 * @param ids * @return */ @PostMapping("/deletes") public Object delete(@RequestParam String ids){ String[] id=ids.split(","); // System.out.println(ids.length()); try{ for(int i=0;i<id.length;i++){ userDao.deleteUser(Integer.valueOf(id[i]));} return "success";} catch (Exception e){ return "Please select at least one"; } } /** * 更新 * @param user * @return */ @PostMapping("/update") public Object update( User user) { try { userDao.updateUser(user); //model.addAttribute("user",new User()); return "Update Success"; }catch (Exception e){ return "Can not input null"; } } /**判断字符串是否全部为数字 * * @param str * @return */ public static boolean isNumeric(String str){ for(int i = 0; i < str.length(); i++){ if(!Character.isDigit(str.charAt(i))){ return false; } } return true; } /** * 查询 * @param keys * @return */ @GetMapping("/findByKeys") public Object findByKeys(@RequestParam(name = "keys",required = false) String keys){ if((keys!=null&&!"".equals(keys))){ if(isNumeric(keys)){ try{ List<User> usertList= userDao.findById(Integer.valueOf(keys).intValue()); return usertList; }catch (Exception e){ List<User> usertList = userDao.findByName(keys); return usertList; } //DateFormat fmt =new SimpleDateFormat("yyyy-MM-dd"); //Date date = fmt.parse(keys); }else{ List<User> usertList = userDao.findByName(keys); return usertList; } // List<User> usertList = userDao.findByName(keys); // return usertList; } else{ return userDao.findAll();} } // @GetMapping("/paging") // public Object paging(String pagesize, String pageindex){ // List<User> usertList = userService.findByPage(Integer.parseInt(pagesize),Integer.parseInt(pageindex)); // return usertList; // } }