Spring Boot实训项目 瑞吉外卖功能实现（二）

1. @PostMapping("/employee/login")
2. 
3.     public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
4. 
5.         //RequestBody可以接收JSON格式的数据并解析为实体类（Employee）
6. 
7.         String username = employee.getUsername();
8. 
9.         String password = DigestUtils.md5DigestAsHex(employee.getPassword().getBytes());
10. 
11.         System.out.println("用户名:"+username+"--密码:"+password);
12. 
13.         //LambdaQueryWrapper<List<Map>> lambdaQueryWrapper = new LambdaQueryWrapper<>();
14. 
15.         LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
16. 
17.         //查询结果是单张表，用实体类接收；如果是if交叉查询（多张表查询）用List<Map>
18. 
19.         queryWrapper.eq(Employee::getUsername,username);
20. 
21.         //使用LambdaQueryWrapper免除写sql，相当于进行select操作
22. 
23.         Employee employee1 = employeeService.getOne(queryWrapper);
24. 
25.         System.out.println("2********username："+employee1.getPhone());
26. 
27.         if (employee1 == null){
28. 
29.             return R.error("用户名错误，登录失败，请重试！");
30. 
31.         }
32. 
33.         if (!password.equals(employee1.getPassword())){
34. 
35.             return R.error("密码错误，登录失败，请重试！");
36. 
37.         }
38. 
39.         if (employee1.getStatus()!=1){
40. 
41.             return R.error("该账户被删除或禁用，登录失败！");
42. 
43.         }
44. 
45.         request.getSession().setAttribute("employee",employee1);  //为了filter、后续调用方便
46. 
47.         BaseContext.setCurrentUserID(employee1.getId());  //为了普通类能够调用
48. 
49.         return R.success(employee1);
50. 
51.     }
52. 
53.     @PostMapping("/employee/logout")
54. 
55.     public R<Employee> logout(HttpServletRequest request){
56. 
57.         request.getSession().removeAttribute("employee");
58. 
59.         request.getSession().invalidate();
60. 
61.         return R.success(null);
62. 
63.     }