Hibernate连接三种数据库的配置文件hibernate.cfg.xml

       Hibernate连接数据库的配置文件为hibernate.cfg.xml，下面列出了连接三种数据库（SQL Server、Oracle、MySQL）时，hibernate.cfg.xml的必要配置。

连接MySql的配置

xml version='1.0' encoding='UTF-8'?> DOCTYPE hibernate-configuration PUBLIC           "-//Hibernate/Hibernate Configuration DTD 3.0//EN"           "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration>     <session-factory>                  <property name="connection.driver_class">             com.mysql.jdbc.Driver         property>                  <property name="connection.url">             jdbc:mysql://localhost:3306/mysqldb         property>                  <property name="connection.username">rootproperty>                  <property name="connection.password">adminproperty>                  <property name="connection.pool_size">1property>                  <property name="dialect">             org.hibernate.dialect.MySQLDialect         property>                  <property name="show_sql">trueproperty>                  <property name="format_sql">trueproperty>                  <mapping resource="com/model/User.hbm.xml" />     session-factory> hibernate-configuration>

连接Oracle的配置

xml version='1.0' encoding='UTF-8'?> DOCTYPE hibernate-configuration PUBLIC           "-//Hibernate/Hibernate Configuration DTD 3.0//EN"           "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">   <hibernate-configuration>     <session-factory>                  <property name="connection.driver_class">             oracle.jdbc.driver.OracleDriver         property>                  <property name="connection.url">             jdbc:oracle:thin:@127.0.0.1:1521:DBSQL         property>                  <property name="connection.username">PERSONNEL_MANAGEproperty>                  <property name="connection.password">MWQproperty>                  <property name="dialect">             org.hibernate.dialect.OracleDialect         property>                  <property name="show_sql">trueproperty>                  <property name="format_sql">trueproperty>                  <property name="use_sql_comments">trueproperty>                  <mapping resource="com/chen/entity/users.hbm.xml" />     session-factory> hibernate-configuration>

连接SQL Server配置

xml version='1.0' encoding='UTF-8'?> DOCTYPE hibernate-configuration PUBLIC           "-//Hibernate/Hibernate Configuration DTD 3.0//EN"           "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">  <hibernate-configuration>      <session-factory>            <property name="hibernate.connection.url">jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=db_manpowerproperty>             <property name="hibernate.connection.driver_class">com.microsoft.jdbc.sqlserver.SQLServerDriverproperty>             <property name="hibernate.connection.username">saproperty>             <property name="hibernate.connection.password"/>            <property name="show_sql">tureproperty>             <property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialectproperty>             <property name="hibernate.jdbc.batch_size">16property>             <mapping resource="com/chen/entity/Users.hbm.xml"/>      session-factory>  hibernate-configuration>