c3p0

###1.导入jar包，必须jar包：c3p0、mysql-connector、beans、context、dao、jdbc，截图如下 ###2.db.properties jdbc.user=root jdbc.password=123456 jdbc.driverClass=com.mysql.jdbc.Driver jdbc.jdbcUrl=jdbc:mysql:///test?useUnicode=true&characterEncoding=UTF8 jdbc.initPoolSize=10 jdbc.maxPoolSize=50 ###3.applicationContext.xml <context:property-placeholder location="classpath:db.properties"/> <bean id="dataSources" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="user" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> <property name="driverClass" value="$

I am worried that the properties I have set for my C3P0 connection pool are not being used correctly. Is there a way I can access the values that are set while the application is running and print them out: Println("Minimum connections"+connectionNumers.minimum); Thanks You can use log4j to output debug information like so: log4j.logger.com.mchange=DEBUG, STDOUT ### direct log messages to stdout ### log4j.appender.STDOUT=org.apache.log4j.ConsoleAppender log4j.appender.STDOUT.Target=System.out log4j.appender.STDOUT.layout=org.apache.log4j.PatternLayout log4j.appender.STDOUT.layout

I am using c3p0 connection pool with Spring (with plain jdbc, no hibernate). Here is my configuration for pool <bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass" value="${jdbc.driver}"/> <property name="jdbcUrl" value="${jdbc.url}"/> <property name="user" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> <property name="acquireIncrement" value="3"/> <property name="minPoolSize" value="3"/> <property name="maxPoolSize" value="25"/> <property name="maxStatementsPerConnection" value="0"/>