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Class Cast Exception when trying to connect my sql database using struts

 
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SEVERE: Initializing application data source org.apache.struts.action.DATA_SOURCE
java.lang.ClassCastException: app.commonutilities.connectionmanager.ConnectionManager
at org.apache.struts.action.ActionServlet.initModuleDataSources(ActionServlet.java:775)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:331)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1003)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:836)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3823)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4128)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:2920)
at org.apache.catalina.manager.ManagerServlet.reload(ManagerServlet.java:902)
at org.apache.catalina.manager.HTMLManagerServlet.reload(HTMLManagerServlet.java:450)
at org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:106)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:576)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)
Mar 25, 2005 2:33:45 PM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet action as unavailable
Mar 25, 2005 2:33:45 PM org.apache.catalina.core.ApplicationContext log
SEVERE: Servlet /mystrutsDB threw load() exception
javax.servlet.UnavailableException: Initializing application data source org.apache.struts.action.DATA_SOURCE
at org.apache.struts.action.ActionServlet.initModuleDataSources(ActionServlet.java:782)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:331)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1003)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:836)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3823)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4128)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:2920)
at org.apache.catalina.manager.ManagerServlet.reload(ManagerServlet.java:902)
at org.apache.catalina.manager.HTMLManagerServlet.reload(HTMLManagerServlet.java:450)
at org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:106)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:576)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)
Mar 25, 2005 2:33:45 PM org.apache.catalina.core.ApplicationContext log

------------------------------
struts-config.xml
--------------------------

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">

<!--
This is a blank Struts configuration file with an example
welcome action/page and other commented sample elements.

Tiles and the Struts Validator are configured using the factory defaults
and are ready-to-use.

NOTE: If you have a generator tool to create the corresponding Java classes
for you, you could include the details in the "form-bean" declarations.
Otherwise, you would only define the "form-bean" element itself, with the
corresponding "name" and "type" attributes, as shown here.
-->


<struts-config>

<data-sources>
<data-source
type="app.commonutilities.connectionmanager.ConnectionManager">
<set-property property="driverClassname"
value="com.mysql.jdbc.Driver"/>
<set-property property="url"
value="jdbc:mysql://localhost:3306/test"/>
<set-property property="username"
value="root"/>
<set-property property="password"
value=" "/>

</data-source>
</data-sources>

<!-- ================================================ Form Bean Definitions -->

<form-beans>

<form-bean
name="LogonForm"
type="app.LogonForm"/>


</form-beans>


<!-- ========================================= Global Exception Definitions -->

<global-exceptions>
<!-- sample exception handler
<exception
key="expired.password"
type="app.ExpiredPasswordException"
path="/changePassword.jsp"/>
end sample -->
</global-exceptions>


<!-- =========================================== Global Forward Definitions -->

<global-forwards>
<!-- Default forward to "Welcome" action -->
<!-- Demonstrates using index.jsp to forward -->
<forward
name="welcome"
path="Welcome.jsp"/>
<forward
name="Logon"
path="logon.jsp"/>
</global-forwards>


<!-- =========================================== Action Mapping Definitions -->

<action-mappings>
<action
path="/LogonSubmit"
type="app.LogonAction"
name="LogonForm"
scope="request"
validate="true"
input="/logon.jsp">
<forward
name="success" path="/sucess.jsp"/>
</action>
</action-mappings>

<!-- resources -->
<message-resources
parameter="/resources/ApplicationResources"/>

</struts-config>
 
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What this message is telling you is that app.commonutilities.connectionmanager.ConnectionManager is not what it's expecting as a data-source type. Try org.apache.commons.dbcp.BasicDataSource.
 
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