如何用Spring框架的标签实现REST风格的增删改查操作

1、首先创建两个bean类，Employee（职工）和Department（部门），一个部门可以有多个职工

Employee类（属性：职工ID：id；姓名：lastName；邮箱：email；性别：gender；所属部门：department）

 1 package com.bwlu.bean;
 2 public class Employee {
 3     private Integer id;
 4     private String lastName;
 5     private String email;
 6     //1 male, 0 female
 7     private Integer gender;
 8     private Department department;
 9     public Employee() {
10         
11     }
12     public Employee(Integer id, String lastName, String email, Integer gender,
13             Department department) {
14         super();
15         this.id = id;
16         this.lastName = lastName;
17         this.email = email;
18         this.gender = gender;
19         this.department = department;
20     }
21     public Integer getId() {
22         return id;
23     }
24     public void setId(Integer id) {
25         this.id = id;
26     }
27     public String getLastName() {
28         return lastName;
29     }
30     public void setLastName(String lastName) {
31         this.lastName = lastName;
32     }
33     public String getEmail() {
34         return email;
35     }
36     public void setEmail(String email) {
37         this.email = email;
38     }
39     public Integer getGender() {
40         return gender;
41     }
42     public void setGender(Integer gender) {
43         this.gender = gender;
44     }
45     public Department getDepartment() {
46         return department;
47     }
48     public void setDepartment(Department department) {
49         this.department = department;
50     }
51     @Override
52     public String toString() {
53         return "Employee [
54                 + email + ", gender=" + gender + ", department=" + department
55                 + "]";
56     }
57 }

Employee