Java精品项目瑞吉外卖之员工新增篇

@PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("新增员工信息：{}", employee.toString());
        // 设置默认密码为123456 并进行MD5加密
        employee.setPassword(DigestUtils.md5DigestAsHex(CommonsConst.INIT_PASSWORD.getBytes()));
        // 设置创建时间
        employee.setCreateTime(LocalDateTime.now());
        // 设置更新时间
        employee.setUpdateTime(LocalDateTime.now());
        // 用户ID设置（session中取得）
        Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);
        // 调用存储方法
        employeeService.save(employee);
        return R.success("添加成功");
    }

package com.itheima.reggie.common;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import java.sql.SQLIntegrityConstraintViolationException;
/**
 * @author jektong
 * @Date 2022/4/29
 */
@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {
    /**
     *
     * @param ex
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        return R.error("该账号已经存在");
    }
}