• 背景：

　　基於之前兩篇文章《Spring（三）：Spring整合Hibernate》、《Spring（四）：Spring整合Hibernate，之後整合Struts2》，了解了如何整合SSH的過程，但還不知道整合後在項目中該怎麽開發使用，本文主要講解的是基於SSH實現Employee信息查詢功能的使用。

• 新建Employee,Department實體類，並添加對應類的hibernate實體配置文件

　　新建包com.dx.ssh.entities，在該包下創建Employee、Department實體類，並添加對應的hibernate實體配置文件Employee.hbm.xml、Department.hbm.xml

Employee.java

 1 package com.dx.ssh.entities;
 2 
 3 public class Department {
 4     private Integer id;
 5     private String deparmentName;
 6 
 7     public Integer getId() {
 8         return id;
 9     }
10 
11     public void setId(Integer id) {
12         this.id = id;
13     }
 
14 
15     public String getDeparmentName() {
16         return deparmentName;
17     }
18 
19     public void setDeparmentName(String deparmentName) {
20         this.deparmentName = deparmentName;
21     }
22 }

Employee.hbm.xml

 1 <?xml version="1.0"?>
 2 <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
 
 3 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
 4 <!-- Generated 2017-5-9 16:33:32 by Hibernate Tools 3.5.0.Final -->
 5 <hibernate-mapping>
 6     <class name="com.dx.ssh.entities.Department" table="SSH_DEPARTMENT">
 7         <id name="id" type="java.lang.Integer">
 8             <column name="ID" />
 9             <generator class="native" />
10         </id>
11         <property name="deparmentName" type="java.lang.String">
12             <column name="DEPARMENTNAME" />
13         </property>
14     </class>
15 </hibernate-mapping>

Department.java

 1 package com.dx.ssh.entities;
 2 
 3 import java.util.Date;
 4 
 5 public class Employee {
 6     private Integer id;
 7     private String lastName;
 8     private String email;
 9     private Date birth;
10     // 不能被修改
11     private Date createTime;
12     // n:1的關系
13     private Department department;
14 
15     public Integer getId() {
16         return id;
17     }
18 
19     public void setId(Integer id) {
20         this.id = id;
21     }
22 
23     public String getLastName() {
24         return lastName;
25     }
26 
27     public void setLastName(String lastName) {
28         this.lastName = lastName;
29     }
30 
31     public String getEmail() {
32         return email;
33     }
34 
35     public void setEmail(String email) {
36         this.email = email;
37     }
38 
39     public Date getBirth() {
40         return birth;
41     }
42 
43     public void setBirth(Date birth) {
44         this.birth = birth;
45     }
46 
47     public Date getCreateTime() {
48         return createTime;
49     }
50 
51     public void setCreateTime(Date createTime) {
52         this.createTime = createTime;
53     }
54 
55     public Department getDepartment() {
56         return department;
57     }
58 
59     public void setDepartment(Department department) {
60         this.department = department;
61     }
62 }

Department.hbm.xml

 1 <?xml version="1.0"?>
 2 <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
 3 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
 4 <!-- Generated 2017-5-9 16:33:32 by Hibernate Tools 3.5.0.Final -->
 5 <hibernate-mapping>
 6     <class name="com.dx.ssh.entities.Employee" table="SSH_EMPLOYEE">
 7         <id name="id" type="java.lang.Integer">
 8             <column name="ID" />
 9             <generator class="native" />
10         </id>
11         <property name="lastName" type="java.lang.String">
12             <column name="LASTNAME" />
13         </property>
14         <property name="email" type="java.lang.String">
15             <column name="EMAIL" />
16         </property>
17         <property name="birth" type="java.util.Date">
18             <column name="BIRTH" />
19         </property>
20         <property name="createTime" type="java.util.Date">
21             <column name="CREATETIME" />
22         </property>
23         <!-- 單項N:1關聯關系 -->
24         <many-to-one name="department" class="com.dx.ssh.entities.Department">
25             <column name="DEPARTMENT_ID" />
26         </many-to-one>
27     </class>
28 </hibernate-mapping>

Spring（五）：Spring&Struts2&Hibernate整合後，實現查詢Employee信息