java 瑞吉外卖day2 笔记员工增加员工信息分页查询

news2025/12/1 12:03:45

@PostMapping
public R save(HttpServletRequest request,@RequestBody Employee employee){
    log.info("新增员工：{}",employee);
    //设置初始密码123456 需要进行md5加密
    employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

    employee.setCreateTime(LocalDateTime.now());
    employee.setUpdateTime(LocalDateTime.now());

    Long empId = (Long)request.getSession().getAttribute("employee");

    employee.setCreateUser(empId);
    employee.setUpdateUser(empId);

    employeeService.save(employee);
    return new R(1,"新增员工成功");

@ControllerAdvice(annotations = {Controller.class, RestController.class})
@ResponseBody  //必须要写
@Slf4j
public class GlobalExceptionHandler {
    /**
     * 异常处理方法
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
            String[] strings =ex.getMessage().split(" ");
            String msg = strings[2]+"已经被使用";
            return new R(0,msg);
        }
        return new R(0,"未知错误");
    }

}

员工信息分页查询

分页查询controller

  @GetMapping("/page")
    public R page(int page,int pageSize,String name){
    log.info("page={},pageSize={},name={}",page,pageSize,name);
    //构造分页构造器
        Page pageInfo=new Page(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper =new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo,queryWrapper);

        return new R(1,"查询成功",pageInfo);

}