1. 新建hibernate项目
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2. 添加mysql-connector
   • ctrl+alt+shift+s lib add mysql-connector
     
     
3. 创建实体类
   • src/entity/User.java

    package entity; public class User { //hibernate 要求实体类有一个属性唯一 private int uid; private String username; private String password; private String address; public int getUid() { return uid; } public void setUid(int uid) { this.uid = uid; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } }

4. 创建src/rntity/User.hbm.xml

 <?xml version=‘1.0‘ encoding=‘utf-8‘?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <!-- - 配置类和表对应 - class - name: 实体类的全路径 - table: 数据库表名称 - id - name: 实体类的id属性名称 - column: 生成表的字段名称 - generator - class - native: 生成表主键id自增长 - property - name: 属性名 - column: 字段名 --> <class name="entity.User" table="t_user"> <id name="uid"> <generator class="native"/> </id> <property name="username"/> <property name="password"/> <property name="address"/> </class> </hibernate-mapping>

1. 配置hibernate.cfg.xml

 <?xml version=‘1.0‘ encoding=‘utf-8‘?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!--第一部分: 配置数据库信息--> <!--ctrl+alt+shift+s lib add mysql-connector--> <property name="connection.url"> jdbc:mysql://127.0.0.1:3306/hibernate_test?useUnicode=true&amp;characterEncoding=utf- 8&amp;useJDBCCompliantTimezoneShift=true&amp;useLegacyDatetimeCode=false&amp;serverTimezone=UTC </property> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <property name="connection.username">root</property> <property name="connection.password">passwd</property> <!--第二部分: 可选--> <!-- DB schema will be updated if needed --> <property name="hbm2ddl.auto">update</property> <!--输出sql语句, 并格式化--> <property name="show_sql">true</property> <property name="format_sql">true</property> <!--各个数据库的方言--> <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property> <!--第三部分: 映射文件--> <mapping resource="entity/User.hbm.xml"/> </session-factory> </hibernate-configuration>

1. 修改Main.java

 import entity.User; import org.hibernate.*; import org.hibernate.cfg.Configuration; public class Main { private static final SessionFactory ourSessionFactory; static { try { //加载核心配置文件 Configuration configuration = new Configuration(); configuration.configure(); //创建SessionFactory对象, 并在数据库中把表创建出来 ourSessionFactory = configuration.buildSessionFactory(); } catch (Throwable ex) { throw new ExceptionInInitializerError(ex); } } public static Session getSession() throws HibernateException { //创建Session return ourSessionFactory.openSession(); } public static void main(final String[] args) throws Exception { final Session session = getSession(); try { User user = new User(); user.setUsername("小李"); user.setPassword("123"); user.setAddress("日本"); session.save(user); session.beginTransaction().commit(); } finally { session.close(); } } }

1. 执行Main.java
2. 注意事项

 <property name="connection.url"> jdbc:mysql://127.0.0.1:3306/hibernate_test?useUnicode=true&amp;characterEncoding=utf-8&amp;useJDBCCompliantTimezoneShift=true&amp;useLegacyDatetimeCode=false&amp;serverTimezone=UTC </property> <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property> <mapping resource="entity/User.hbm.xml"/> 要放到最后