Hibernate配置数据库连接

1. Hibernate默认连接池
2. C3P0连接池
3. Proxool连接池
4. JNDI DataSource

1. Hibernate默认连接池

Xml代码  

1. <session-factory>  
2.     <property name="hibernate.connection.driver_class">  
3.         com.mysql.jdbc.Driver   
4.     </property>  
5.     <property name="hibernate.connection.url">  
6.         jdbc:mysql://127.0.0.1:3306/txazo   
7.     </property>  
8.     <property name="hibernate.connection.username">root</property>  
9.     <property name="hibernate.connection.password">root</property>  
10.   
11.     <property name="hibernate.connection.pool_size">10</property>  
12.   
13.     <property name="hibernate.dialect">  
14.         org.hibernate.dialect.MySQLDialect   
15.     </property>  
16.   
17.     <property name="hibernate.current_session_context_class">thread</property>  
18.   
19.     <property name="hibernate.show_sql">true</property>  
20.     <property name="hibernate.format_sql">true</property>  
21.     <property name="hibernate.hbm2ddl.auto">update</property>  
22.   
23.     <mapping class="com.txazo.domain.User" />  
24. </session-factory>  

<session-factory>
	<property name="hibernate.connection.driver_class">
        com.mysql.jdbc.Driver
    </property>
	<property name="hibernate.connection.url">
        jdbc:mysql://127.0.0.1:3306/txazo
    </property>
	<property name="hibernate.connection.username">root</property>
	<property name="hibernate.connection.password">root</property>

    <property name="hibernate.connection.pool_size">10</property>

	<property name="hibernate.dialect">
        org.hibernate.dialect.MySQLDialect
    </property>

	<property name="hibernate.current_session_context_class">thread</property>

	<property name="hibernate.show_sql">true</property>
	<property name="hibernate.format_sql">true</property>
	<property name="hibernate.hbm2ddl.auto">update</property>

	<mapping class="com.txazo.domain.User" />
</session-factory>

2. C3P0连接池

Xml代码  

1. <session-factory>  
2.     <property name="hibernate.connection.driver_class">  
3.         com.mysql.jdbc.Driver   
4.     </property>  
5.     <property name="hibernate.connection.url">  
6.         jdbc:mysql://127.0.0.1:3306/txazo   
7.     </property>  
8.     <property name="hibernate.connection.username">root</property>  
9.     <property name="hibernate.connection.password">root</property>  
10.   
11.     <property name="hibernate.c3p0.min_size">5</property>  
12.     <property name="hibernate.c3p0.max_size">20</property>  
13.     <property name="hibernate.c3p0.timeout">1000</property>  
14.     <property name="hibernate.c3p0.max_statements">100</property>  
15.   
16.     <property name="hibernate.dialect">  
17.         org.hibernate.dialect.MySQLDialect   
18.     </property>  
19.   
20.     <property name="hibernate.current_session_context_class">thread</property>  
21.   
22.     <property name="hibernate.show_sql">true</property>  
23.     <property name="hibernate.format_sql">true</property>  
24.     <property name="hibernate.hbm2ddl.auto">update</property>  
25.   
26.     <mapping class="com.txazo.domain.User" />  
27. </session-factory>  

<session-factory>
	<property name="hibernate.connection.driver_class">
        com.mysql.jdbc.Driver
    </property>
	<property name="hibernate.connection.url">
        jdbc:mysql://127.0.0.1:3306/txazo
    </property>
	<property name="hibernate.connection.username">root</property>
	<property name="hibernate.connection.password">root</property>

    <property name="hibernate.c3p0.min_size">5</property>
	<property name="hibernate.c3p0.max_size">20</property>
	<property name="hibernate.c3p0.timeout">1000</property>
	<property name="hibernate.c3p0.max_statements">100</property>

	<property name="hibernate.dialect">
        org.hibernate.dialect.MySQLDialect
    </property>

	<property name="hibernate.current_session_context_class">thread</property>

	<property name="hibernate.show_sql">true</property>
	<property name="hibernate.format_sql">true</property>
	<property name="hibernate.hbm2ddl.auto">update</property>

	<mapping class="com.txazo.domain.User" />
</session-factory>

3. Proxool连接池
1)添加Proxool的JAR包
2)src/proxool.xml

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2.   
3. <something-else-entirely>  
4.     <proxool>  
5.         <alias>txazo</alias>  
6.         <driver-url>jdbc:mysql://127.0.0.1:3306/txazo</driver-url>  
7.         <driver-class>com.mysql.jdbc.Driver</driver-class>  
8.         <driver-properties>  
9.             <property name="user" value="root" />  
10.             <property name="password" value="root" />  
11.         </driver-properties>  
12.         <minimum-connection-count>5</minimum-connection-count>  
13.         <maximum-connection-count>20</maximum-connection-count>  
14.     </proxool>  
15. </something-else-entirely>  

<?xml version="1.0" encoding="UTF-8"?>

<something-else-entirely>
	<proxool>
		<alias>txazo</alias>
		<driver-url>jdbc:mysql://127.0.0.1:3306/txazo</driver-url>
		<driver-class>com.mysql.jdbc.Driver</driver-class>
		<driver-properties>
			<property name="user" value="root" />
			<property name="password" value="root" />
		</driver-properties>
		<minimum-connection-count>5</minimum-connection-count>
		<maximum-connection-count>20</maximum-connection-count>
	</proxool>
</something-else-entirely>

3)src/hibernate.cfg.xml

Xml代码  

1. <session-factory>  
2.     <property name="hibernate.connection.provider_class">  
3.         org.hibernate.connection.ProxoolConnectionProvider   
4.     </property>  
5.     <property name="hibernate.proxool.pool_alias">txazo</property>  
6.     <property name="hibernate.proxool.xml">proxool.xml</property>  
7.   
8.     <property name="hibernate.dialect">  
9.         org.hibernate.dialect.MySQLDialect   
10.     </property>  
11.   
12.     <property name="hibernate.current_session_context_class">thread</property>  
13.   
14.     <property name="hibernate.show_sql">true</property>  
15.     <property name="hibernate.format_sql">true</property>  
16.     <property name="hibernate.hbm2ddl.auto">update</property>  
17.   
18.     <mapping class="com.txazo.domain.User" />  
19. </session-factory>  

<session-factory>
    <property name="hibernate.connection.provider_class">
        org.hibernate.connection.ProxoolConnectionProvider
    </property>
    <property name="hibernate.proxool.pool_alias">txazo</property>
	<property name="hibernate.proxool.xml">proxool.xml</property>

	<property name="hibernate.dialect">
        org.hibernate.dialect.MySQLDialect
    </property>

	<property name="hibernate.current_session_context_class">thread</property>

	<property name="hibernate.show_sql">true</property>
	<property name="hibernate.format_sql">true</property>
	<property name="hibernate.hbm2ddl.auto">update</property>

	<mapping class="com.txazo.domain.User" />
</session-factory>

4. JNDI DataSource

Xml代码  

1. <session-factory>  
2.     <property name="hibernate.connection.datasource">  
3.         java:comp/env/jdbc/txazo   
4.     </property>  
5.   
6.     <property name="hibernate.dialect">  
7.         org.hibernate.dialect.MySQLDialect   
8.     </property>  
9.   
10.     <property name="hibernate.current_session_context_class">thread</property>  
11.   
12.     <property name="hibernate.show_sql">true</property>  
13.     <property name="hibernate.format_sql">true</property>  
14.     <property name="hibernate.hbm2ddl.auto">update</property>  
15.   
16.     <mapping class="com.txazo.domain.User" />  
17. </session-factory>