tomcat datasource

 <Resource name="jdbc/xxx" auth="Container" type="javax.sql.DataSource"

factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" testWhileIdle="true"

testOnBorrow="true" testOnReturn="false" validationQuery="SELECT 1"

validationInterval="30000" timeBetweenEvictionRunsMillis="30000"

maxActive="100" minIdle="10" maxWait="10000" initialSize="10"

removeAbandonedTimeout="60" removeAbandoned="true" logAbandoned="true"

minEvictableIdleTimeMillis="30000" jmxEnabled="true"

jdbcInterceptors="org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;

            org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer"

username="xxx" password="xxx" driverClassName="com.mysql.jdbc.Driver"

url="jdbc:mysql://localhost:3306/xxx?useUnicode=true&amp;characterEncoding=utf8" />