tomcat 配置JNDI数据源

<Resource name="jdbc/SUNMANAGER"   
            auth="Container"   
            type="javax.sql.DataSource"   
            driverClassName="com.ibm.db2.jcc.DB2Driver"   
            url="jdbc:db2://18.1.99.235:50000/sunyard"   
            username="db2inst1"   
            password="db2inst1"   
            maxActive="20"   
            maxIdle="10"   
            maxWait="10000"/>      

 <resource-ref>
      <description>DB Connection</description>
      <res-ref-name>jdbc/SUNMANAGER</res-ref-name>
      <res-type>javax.sql.DataSource</res-type>
j  </resource-ref>