Struts exception - pl. help
Hi, Our application is using Struts1.1 and running on Tomcat4.1. We got the following exception stack trace. Any clues will be appreciated to fix this problem. Thanks, Durgaprasad Exception Stack Trace: -- Nov 13, 2003 12:21:37 PM org.apache.struts.action.RequestProcessor processException WARNING: Unhandled Exception thrown: class java.lang.NullPointerException StandardWrapperValve[action]: Servlet.service() for servlet action threw exception javax.servlet.ServletException javax.servlet.ServletException at org.apache.struts.action.RequestProcessor.processException(RequestProces sor.java:541) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:482) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:502) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e.java:263) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4 80) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e.java:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i nvokeNext(StandardPipeline.java:643) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticator Base.java:490) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Appending params to the URL of ActionForward
Hi, I am new to struts and would like to know the solution to the following: When the request is submitted to the action class, the action class will evaluate and constructs the request parameters which needs to be appended to URL of the View component mentioned in the forward target. action path=/process type=SomeAction forward name = success path=jsp/content.jsp/ forward name = failure path=jsp/failure.jsp/ /action Depending upon the logic inside action class, there might be different request parameters are obtained and the path of the url for the success target should go like this: path = jsp/content.jsp?param1=val1param2=val2 (OR) path=jsp/content.jsp?param3=val3param4=val4 Can we set the path for ActionForward by using ActionForward.setPath()before returning inside Action class? What could be better approach to this problem? Thanks, Durgaprasad - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Appending params to the URL of ActionForward
Thanks a lot! It worked perfectly.
Regards,
Durgaprasad
-Original Message-
From: Andrew Hill [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 05, 2003 8:26 PM
To: Struts Users Mailing List
Subject: RE: Appending params to the URL of ActionForward
You can create a new action forward and return that.
The code below creates a new actionforward based on the path in an
existing one and appending some parameter:
ActionForward forward = mapping.findForward(myforward); forward = new
ActionForward( addParameterToUrl(forward.getPath(),foo,bar),
forward.getRedirect() );
return forward;
where addParameterToUrl does something like:
private String addParameterToURL(String url, String parameter, String
value)
{
return url + ( (url.indexOf(?)==-1) ? ? : ) + parameter +
= + value;
}
-Original Message-
From: DurgaPrasad Guduguntla [mailto:[EMAIL PROTECTED]
Sent: Friday, 6 June 2003 08:31
To: [EMAIL PROTECTED]
Subject: Appending params to the URL of ActionForward
Hi,
I am new to struts and would like to know the solution to the following:
When the request is submitted to the action class, the action class will
evaluate and constructs the request parameters which needs to be
appended to URL of the View component mentioned in the forward target.
action path=/process type=SomeAction
forward name = success path=jsp/content.jsp/
forward name = failure path=jsp/failure.jsp/
/action
Depending upon the logic inside action class, there might be different
request parameters are obtained and the path of the url for the
success target should go like this:
path = jsp/content.jsp?param1=val1param2=val2 (OR)
path=jsp/content.jsp?param3=val3param4=val4
Can we set the path for ActionForward by using
ActionForward.setPath()before returning inside Action class? What could
be better approach to this problem?
Thanks,
Durgaprasad
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