配置数据源

     <Resource name="jdbc/twdpm"

        auth="Container"        type="javax.sql.DataSource"        initialSize="5"        maxActive="20"        minIdle="2"        maxIdle="10"        maxWait="15000"        username="twdpm"        password="twdpm"        driverClassName="com.mysql.jdbc.Driver"        url="jdbc:mysql://192.168.0.85:3306/twdpm?autoReconnect=true"/>