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Web app in eclipse VS weblogic server - NoSuchMethodError issue
Posted on 2006-07-01
Hi,
This program used to work fine in eclipse, but having this error in weblogic server. I read some articles about change setting in weblogic server. Is there any way that I can fix this without changing setting?
Error 500--Internal Server Error
java.lang.NoSuchMethodErro
at RegistrationServlet.doGet(
at RegistrationServlet.doPost
at javax.servlet.http.HttpSer
at javax.servlet.http.HttpSer
at weblogic.servlet.internal.
BTW, StudentInfo is just simple java bean.
thanks in advance.
This program used to work fine in eclipse, but having this error in weblogic server. I read some articles about change setting in weblogic server. Is there any way that I can fix this without changing setting?
Error 500--Internal Server Error
java.lang.NoSuchMethodErro
at RegistrationServlet.doGet(
at RegistrationServlet.doPost
at javax.servlet.http.HttpSer
at javax.servlet.http.HttpSer
at weblogic.servlet.internal.
BTW, StudentInfo is just simple java bean.
thanks in advance.
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30 Comments
Active 7 days ago
It looks like yout RegistrationServlet doesn't have the bean available. Where is the StudentInfo bean located? Is it in the app's web-inf/lib directory?
Looks like the StudentInfo class does not have a setUserId() method.
Perhaps try recompiling and redeploy.
Perhaps try recompiling and redeploy.
Active 7 days ago
What about the case of the method name and its visibility. Maybe it's called "SetUserId"? Is it public?
I used elipse's func that generates setter and getter automatically.
+++++++++++++++++
public class StudentInfo {
private String userId;
private String passWord1;
...
...
...
/**
* @param userId The userId to set.
*/
public void setUserId(String userId) {
this.userId = userId;
}
+++++++++++++++++++
and I am calling like this.
++++++++++++
public class RegistrationServlet extends HttpServlet {
private Connection conn;
...
private HttpSession session = null;
...
private StudentInfo studentInfo=null;
public void init() throws ServletException{
studentInfo=new StudentInfo();
}
+++++++++++++++++
public class StudentInfo {
private String userId;
private String passWord1;
...
...
...
/**
* @param userId The userId to set.
*/
public void setUserId(String userId) {
this.userId = userId;
}
+++++++++++++++++++
and I am calling like this.
++++++++++++
public class RegistrationServlet extends HttpServlet {
private Connection conn;
...
private HttpSession session = null;
...
private StudentInfo studentInfo=null;
public void init() throws ServletException{
studentInfo=new StudentInfo();
}
I compiled this from eclipse and moved to weblogic. But I deleted existing app dir and copied&pasted again. I even checked the changes in the java file from weblogic.
Active 7 days ago
You don't show how you're calling setUserId - are you passing a String as the parameter?
protected void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, java.io.IOException {
...
...
userId = (String)request.getParamet
studentInfo.setUserId(user
...
HttpServletResponse response)
throws ServletException, java.io.IOException {
...
...
userId = (String)request.getParamet
studentInfo.setUserId(user
...
>>"But I deleted existing app dir and copied&pasted again"
Btw, where do you copy and paste in your folder? Did you copy and paste it in your Bea's WLS folder?
David
Btw, where do you copy and paste in your folder? Did you copy and paste it in your Bea's WLS folder?
David
Btw, where do you copy and paste in your folder? Did you copy and paste it in your Bea's WLS folder?
>>C:\bea81\weblogic81\serv
>>C:\bea81\weblogic81\serv
Ok,
I am not very sure on WebLogic's structure but let me try to find out. So do all your JSP and etc reside in this folder?
David
I am not very sure on WebLogic's structure but let me try to find out. So do all your JSP and etc reside in this folder?
David
yes. when i tested it, it ran ok.(btw, i used wls admin console to deploy it.) but i am having error on that line.
do you deploy it as EAR file? If you open the EAR file (use WinRAR or etc), is the class file updated? You can check on the date created
David
David
do you deploy it as EAR file? If you open the EAR file (use WinRAR or etc), is the class file updated? You can check on the date created
>> no, i didn't use any of them. i just copied entire app in that dir and used wls admin console to deploy it.
>> no, i didn't use any of them. i just copied entire app in that dir and used wls admin console to deploy it.
dkim18,
> Btw, where do you copy and paste in your folder? Did you copy and paste
> it in your Bea's WLS folder?
> >>C:\bea81\weblogic81\serv
this is not usual, to deploy applications in the bin folder of weblogic. Are you sure that the application gets loaded from there? Usually you put them under the user_projects. It seems to me that you are deploying a web application from the bin folder but there might be already running another one somewhere else. Can you make a search on the filesystem and see if you can find any other files with similar name?
> Btw, where do you copy and paste in your folder? Did you copy and paste
> it in your Bea's WLS folder?
> >>C:\bea81\weblogic81\serv
this is not usual, to deploy applications in the bin folder of weblogic. Are you sure that the application gets loaded from there? Usually you put them under the user_projects. It seems to me that you are deploying a web application from the bin folder but there might be already running another one somewhere else. Can you make a search on the filesystem and see if you can find any other files with similar name?
girionis is correct.
In my local machine, I located my application in totall different folder together with the WLS domain. However, it is not in the bea's folder itself.
David
In my local machine, I located my application in totall different folder together with the WLS domain. However, it is not in the bea's folder itself.
David
if the class conttains that method then wl isn't loading that class, o/wise u wouldn't be getting that error
Active 7 days ago
Yes, I think it's a different StudentInfo class. Have you tried deploying this app before?
first of all, there is no other StudentInfo class and this is the first web app that I am trying to deploy since I installed WLS.
Active 7 days ago
Well, the problem for all of us here is that the error message means that it has found the class StudentInfo, but that class does not have a setUserId(x) method. This has us all mightily confused, especially since you assert that there is only one StudentInfo class, and that class has got this method with this signature.
It is possible that you have a forgotter EAR somewhere. When you deploy an application wls creates an ear file. I suggest you create a (completely) new domain and try to redeploy your application there.
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