Hibernate 入门教程

 1 public class Emp {
 2 
 3     private int id; // ID
 4     private String name; // 姓名
 5     private BigDecimal salary; // 薪资 因为是金钱，所以用BigDecimal类型的，更加精确。
 6     private int age; // 年龄
 7 
 8     public Emp() {   
 9 
10     }
11     
12     public int getId() {
13         return id;
14     }
15 
16     public void setId(int id) {
17         this.id = id;
18     }
19 
20     public String getName() {
21         return name;
22     }
23 
24     public void setName(String name) {
25         this.name = name;
26     }
27 
28 
29     public void setname(String ename) {
30         this.name = ename;
31     }
32 
33     public BigDecimal getSalary() {
34         return salary;
35     }
36 
37     public void setSalary(BigDecimal salary) {
38         this.salary = salary;
39     }
40 
41     public int getAge() {
42         return age;
43     }
44 
45     public void setAge(int age) {
46         this.age = age;
47     }
48 
49     @Override
50     public String toString() {
51         return "Emp [age=" + age + ", id=" + id + ", name=" + name
52                 + ", salary=" + salary + "]";
53     }
54 }

 1 <!DOCTYPE hibernate-configuration PUBLIC
 2     "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 3     "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 4 
 5 <hibernate-configuration>
 6     <session-factory>
 7     
 8     <!--配置链接的URL-->
 9     <property name="hibernate.connection.url">
10             jdbc:mysql://localhost:3306/emp
11         </property>
12         <!--
13            配置链接驱动
14         -->
15         <property name="hibernate.connection.driver.class">
16             com.mysql.jdbc.Driver
17         </property>
18         <!--
19         编码方式
20         -->
21         <property name="connection.useUnicode">true</property>
22         <property name="connection.characterEncoding">UTF-8</property>
23         <!--
24         数据库用户名和密码
25         -->
26         <property name="hibernate.connection.username">root</property>
27         <property name="hibernate.connection.password">root</property>
28         <!--
29         hiberate解析方言，不同数据库会不一样，我们这里用MySql的
30         -->
31         <property name="hibernay.dialect">
32             org.hibernate.dialect.MySQLDialect.class
33         </property>
34         <!--
35         在控制台中显示sql语句，这个是用于调试用的，项目上线一定不要加这个哦
36         -->
37         <property name="hibernate.show_sql">true</property>
38         <property name="hibernate.format_sql">true</property>
39         <!--
40         引入Emp员工这个实体类的配置文件
41         -->
42         <mapping resource="entity/Emp.hbm.xml"></mapping>
43     </session-factory>
44 </hibernate-configuration>

 1 <!DOCTYPE hibernate-mapping PUBLIC 
 2     "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
 3     "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
 4 <hibernate-mapping>
 5     <class name="org.tarena.entity.Emp" table="t_emp">
 6         <id name="id" column="id">
 7             <!--数据库的主键生成策略  native配置为使用数据库自带的生成策略-- 关于参数详解参考：http://www.cnblogs.com/yfyzy/p/4675041.html>  
 8             <generator class="native"></generator>
 9         </id>
10         <property name="name" column="name" >
11         </property>
12         <property name="salary" column="salary">
13         </property>
14         <property name="age" column="age">
15         </property>
16     </class>
17 </hibernate-mapping>