利用c3p0配置数据库连接

利用c3p0配置数据库连接

一.连接mysql数据库

< bean id ="dataSource"
class ="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method ="close" abstract ="false" singleton ="true"
lazy-init ="default" autowire ="default" dependency-check ="default" >
< property name ="driverClass" >
< value > com.mysql.jdbc.Driver </ value >
</ property >
< property name ="jdbcUrl" >
< value > jdbc:mysql://192.168.0.1/databasename?useUnicode=true &amp; characterEncoding=utf-8 &amp; autoReconnect=true </ value >
</ property >
< property name ="user" >
< value > username </ value >
</ property >
< property name ="password" >
< value > password </ value >
</ property >
< property name ="minPoolSize" >
< value > 10 </ value >
</ property >
< property name ="maxPoolSize" >
< value > 20 </ value >
</ property >
< property name ="initialPoolSize" >
< value > 10 </ value >
</ property >
</ bean >
< bean id ="sessionFactory"
class ="org.springframework.orm.hibernate3.LocalSessionFactoryBean" >
< property name ="dataSource" >
< ref bean ="dataSource" ></ ref >
</ property >
< property name ="hibernateProperties" >
< props >
< prop key ="hibernate.dialect" >
org.hibernate.dialect.MySQLDialect
</ prop >
< prop key ="hibernate.show_sql" >
false
</ prop >
< prop key ="hibernate.generate_statistics" > true </ prop >
< prop key ="hibernate.cache.use_query_cache" >
true
</ prop >
< prop key ="hibernate.cache.use_second_level_cache" >
true
</ prop >
< prop key ="hibernate.cache.provider_class" >
net.sf.ehcache.hibernate.EhCacheProvider
</ prop >
< prop key ="hibernate.connection.provider_class" >
org.hibernate.connection.C3P0ConnectionProvider
</ prop >
< prop key ="hibernate.query.substitutions" >
true1,false0,yes'Y',no'N'
</ prop >
< prop
key ="hibernate.bytecode.use_reflection_optimizer" >
true
</ prop >
< prop key ="hibernate.use_outer_join" > true </ prop >
< prop key ="hibernate.prepare_sql" > true </ prop >
< prop key ="hibernate.query.factory_class" >
org.hibernate.hql.ast.ASTQueryTranslatorFactory
</ prop >
</ props >
</ property >

< property name ="mappingResources" >
< list >
< value > xxx/xx/xx.hbm.xml </ value >
< value > xxx/xx/xx.hbm.xml </ value >
</ list >
</ property >
</ bean >

二.连接Oracle数据库

< bean id ="dataSource"
class ="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method ="close" abstract ="false" singleton ="true"
lazy-init ="default" autowire ="default" dependency-check ="default" >
< property name ="driverClass" >
< value > oracle.jdbc.driver.OracleDriver </ value >
</ property >
< property name ="jdbcUrl" >
< value > jdbc:oracle:thin:@192.168.0.1:1521:orcl </ value >
</ property >
< property name ="user" >
< value > username </ value >
</ property >
< property name ="password" >
< value > password </ value >
</ property >
< property name ="minPoolSize" >
< value > 10 </ value >
</ property >
< property name ="maxPoolSize" >
< value > 20 </ value >
</ property >
< property name ="initialPoolSize" >
< value > 10 </ value >
</ property >
</ bean >

< bean id ="sessionFactory"
class ="org.springframework.orm.hibernate3.LocalSessionFactoryBean" >
< property name ="dataSource" >
< ref bean ="dataSource" ></ ref >
</ property >
< property name ="hibernateProperties" >
< props >
< prop key ="hibernate.dialect" >
org.hibernate.dialect.OracleDialect
</ prop >
< prop key ="hibernate.show_sql" >
false
</ prop >
< prop key ="hibernate.generate_statistics" > true </ prop >
< prop key ="hibernate.cache.use_query_cache" >
true
</ prop >
< prop key ="hibernate.cache.use_second_level_cache" >
true
</ prop >
< prop key ="hibernate.cache.provider_class" >
net.sf.ehcache.hibernate.EhCacheProvider
</ prop >
< prop key ="hibernate.connection.provider_class" >
org.hibernate.connection.C3P0ConnectionProvider
</ prop >
< prop key ="hibernate.query.substitutions" >
true1,false0,yes'Y',no'N'
</ prop >
< prop
key ="hibernate.bytecode.use_reflection_optimizer" >
true
</ prop >
< prop key ="hibernate.use_outer_join" > true </ prop >
< prop key ="hibernate.prepare_sql" > true </ prop >
< prop key ="hibernate.query.factory_class" >
org.hibernate.hql.ast.ASTQueryTranslatorFactory
</ prop >
</ props >
</ property >

< property name ="mappingResources" >
< list >
< value > xxx/xx/xx.hbm.xml </ value >
< value > xxx/xx/xx.hbm.xml </ value >
</ list >
</ property >
</ bean >