Use Hibernate core API

 1 <?xml version=‘1.0‘ encoding=‘utf-8‘?>
 2 <!DOCTYPE hibernate-configuration PUBLIC
 3         "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 4         "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
 5 
 6 <hibernate-configuration>
 7 
 8     <session-factory>
 9 
10         <!-- Database connection settings -->
11         <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
12         <property name="connection.url">jdbc:hsqldb:hsql://localhost</property>
13         <property name="connection.username">sa</property>
14         <property name="connection.password"></property>
15 
16         <!-- JDBC connection pool (use the built-in) -->
17         <property name="connection.pool_size">1</property>
18 
19         <!-- SQL dialect -->
20         <property name="dialect">org.hibernate.dialect.HSQLDialect</property>
21 
22         <!-- Enable Hibernate‘s automatic session context management -->
23         <property name="current_session_context_class">thread</property>
24 
25         <!-- Disable the second-level cache  -->
26         <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
27 
28         <!-- Echo all executed SQL to stdout -->
29         <property name="show_sql">true</property>
30 
31         <!-- Drop and re-create the database schema on startup -->
32         <property name="hbm2ddl.auto">update</property>
33 
34         <mapping resource="org/hibernate/tutorial/domain/Event.hbm.xml"/>
35 
36     </session-factory>
37 
38 </hibernate-configuration>

 1 @Entity
 2 @Table(name="_teacher")
 3 //If Object name is not same as table‘s name， use this annotate
 4 public class Teacher {
 5     @Id
 6     @GeneratedValue
 7     //if you want to automate id. Just use @GeneratedValue
 8     //by default all database can automate id
 9     //When use Database which suport identity. just use @GeneratedValue(strategy = GenerationType.IDENTITY)
10     //When use database which suport sequence. just use @GeneratedValue(strategy = GenerationType.IDENTITY)
11     public int getId() {
12         return id;
13     }
14     public void setId(int id) {
15         this.id = id;
16     }
17     
18     @Column(name="_name")
19     //If Object name is not same as column use this annotate
20     public String getName() {
21         return name;
22     }
23     public void setName(String name) {
24         this.name = name;
25     }
26     
27     public String getTitle() {
28         return title;
29     }
30     public void setTitle(String title) {
31         this.title = title;
32     }
33     @Transient
34     //When you don‘t need to save this object to DB, just use @Transient
35     public String getYourWifeName() {
36         return yourWifeName;
37     }
38     public void setYourWifeName(String yourWifeName) {
39         this.yourWifeName = yourWifeName;
40     }
41     
42     @Temporal(TemporalType.DATE)
43     //just save date and type integer database is Date
44     public Date getBrithDate() {
45         return brithDate;
46     }
47     public void setBrithDate(Date brithDate) {
48         this.brithDate = brithDate;
49     }
50     @Enumerated(EnumType.STRING)
51     //use STRING will save a string in database witch you wrote in enumerate；
52     //use ORDINAL will save a integer type in database order by enumerate elements;
53     public Zhicheng getZhicheng() {
54         return zhicheng;
55     }
56     public void setZhicheng(Zhicheng zhicheng) {
57         this.zhicheng = zhicheng;
58     }
59 
60     private int id;
61     private String name;
62     private String title;
63     private String yourWifeName;
64     private Date brithDate;
65     private Zhicheng zhicheng;
66     
67 }