c3p0在spring下的配置过程

(1) 在hibernate.properties中添加：

Xml代码

1 hibernate.connection.provider_class =org.hibernate.connection.C3P0ConnectionProvider


(2) 新建自己写的properites，取名：jdbc.properties,关于c3p0的代码如下：

Xml代码

2 ######C3P0 MySQL config ####### 

3 c3p0.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&mysqlEncoding=utf8  

4 c3p0.user=root

5 c3p0.password=root

7 c3p0.driverClass=com.mysql.jdbc.Driver 

8 c3p0.acquireIncrement=1

9 c3p0.maxIdleTime=60

10 c3p0.maxPoolSize=200

11 c3p0.minPoolSize=50

12 c3p0.initialPoolSize=300

其中，属性文件通过如下方式读入：
(3) 在spring中对DataAccess的配置如下：

Xml代码

13 <bean id="dataSource"

14     class="com.mchange.v2.c3p0.ComboPooledDataSource"

15     destroy-method="close">

16     <property name="driverClass" value="${c3p0.driverClass}"></property>

17     <property name="jdbcUrl" value="${c3p0.url}"></property>

18     <property name="user" value="${c3p0.user}"></property>

19     <property name="password" value="${c3p0.password}"></property>

20     <property name="acquireIncrement" value="${c3p0.acquireIncrement}"></property>

21     <property name="initialPoolSize" value="${c3p0.initialPoolSize}"></property>

22     <property name="maxIdleTime" value="${c3p0.maxIdleTime}"></property>

23     <property name="maxPoolSize" value="${c3p0.maxPoolSize}"></property>

24     <property name="minPoolSize" value="${c3p0.minPoolSize}"></property>

25      

26     <property name="acquireRetryDelay" value="1000"></property>

27     <property name="acquireRetryAttempts" value="60"></property>

28     <property name="breakAfterAcquireFailure" value="false"></property>

29 </bean>

30 <!--Hibernate SessionFatory-->

31 <bean id="sessionFactory"

32     class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

33     <property name="dataSource" ref="dataSource" />

34     <property name="lobHandler" ref="lobHandler" />

35     <property name="configLocations">

36         <list>

37             <value>classpath*:/hibernate/hibernate.cfg.xml</value>

38         </list>

39     </property>

40     <property name="configurationClass"

41         value="org.hibernate.cfg.AnnotationConfiguration" />

42     <!-- 如果采用hbm 方式 

43         <property name="mappingDirectoryLocations">

44         <list>

45         <value>

46         classpath*:/org/ustb/mis/model/hbm/ 

47         </value>

48         </list>

49         </property>

50     -->

51     <property name="hibernateProperties">

52         <props>

53             <prop key="hibernate.dialect">

54                 ${hibernate.dialect} 

55             </prop>

56             <prop key="hibernate.show_sql">

57                 ${hibernate.show_sql} 

58             </prop>

59             <prop key="hibernate.cache.use_query_cache">

60                 ${hibernate.cache.use_query_cache} 

61             </prop>

62             <prop key="hibernate.cache.provider_class">

63                 ${hibernate.cache.provider_class} 

64             </prop>

65 <!-- 配置C3P0ConnectionProvider-->

66             <prop key="hibernate.connection.provider_class">

67                 ${hibernate.connection.provider_class} 

68             </prop>

69             <prop key="hibernate.current_session_context_class">

70                 ${hibernate.current_session_context_class} 

71             </prop>

72         </props>

73     </property>

74 </bean>


Xml代码

75 <!-- 属性文件读入 -->

76 <bean id="propertyConfigurer"

77     class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

78     <property name="locations">

79         <list>

80             <value>classpath*:hibernate/jdbc.properties</value>

81             <value>classpath*:hibernate/hibernate.properties</value>

82         </list>

83     </property>

84 </bean>