我确定我会以完全错误的方式解决这个问题,但有人可以指出下面代码中的错误......
MBeanServer server = (MBeanServer) MBeanServerFactory.findMBeanServer (null).get (0);
ObjectName mBean = new ObjectName ("Catalina:type=DataSource,path=/<context>,host=localhost,class=javax.sql.DataSource,name=\"<name>\"");
String [] params = {"<username>", "<password>"};
Connection myConnection = (Connection) server.invoke (mBean, "getConnection", params, null);
Statement myStatement = myConnection.createStatement ();
String myResult = myStatement.executeQuery ("SELECT 1 FROM DUAL;").toString ();
myConnection.close ();
当我尝试通过在 MBean 上调用 getConnection 方法来实例化 Connection 对象时,就会出现问题。我收到以下错误...
Aug 6, 2012 8:46:03 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.IllegalArgumentException: Inconsistent arguments and signature
at org.apache.tomcat.util.modeler.ManagedBean.getInvoke(ManagedBean.java:578)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(Unknown Source)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(Unknown Source)
我究竟做错了什么?