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Forum:
Struts
Struts1 InternalServerError
Gaurav Manral
Greenhorn
Posts: 17
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posted 11 years ago
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Hello Friends I'm creating a Basic Struts1 application. And i'm getting InternalServerError.
my code is--
index.jsp
<html> <body> <form action="welcome.do"> Username : <input type="text" name="name"/> Password : <input type="PASSWORD" name="password"/> <input type="submit"/> </form> </body> </html>
web.xml
<web-app> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
struts-config.xml
<struts-config> <form-beans> <form-bean name="action1" type="mypack.MyForm"/> </form-beans> <action-mappings> <action path="/welcome" type="mypack.MyAction" name="action1" input="/index.jsp"> <forward name="success" path="/success.jsp"/> <forward name="error" path="/error.jsp"/> </action> </action-mappings> </struts-config>
Form class
MyForm.java
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package mypack; import org.apache.struts.action.*; /** * * @author Gaurav Manral */ public class MyForm extends ActionForm { String name,password; public void setName(String n) { name=n; } public String getName() { return(name); } public void setPassword(String p) { password=p; } public String getPassword() { return(password); } }
Action class
MyAction.java
package mypack; import org.apache.struts.action.*; import javax.servlet.http.*; /** * * @author Gaurav Manral */ public class MyAction extends Action { public ActionForward execute(ActionMapping m, ActionForm f, HttpServletRequest req, HttpServletResponse res) { MyForm form=(MyForm)f; String user=form.getName(); System.out.println("user"); String pass=form.getPassword(); ActionForward fw; if(user.equals("ducat") && pass.equals("12345")) fw=m.findForward("success"); else fw=m.findForward("error"); return(fw); } }
View Files
success.jsp
<html> <body> Welcome <%=request.getParameter("name")%> </body> </html>
error.jsp
<html> <body> Invalid Username and Password... </body> </html>
The Exception msg is--
Error 500--Internal Server Error java.lang.NullPointerException at org.apache.struts.config.FormBeanConfig.createActionForm(FormBeanConfig.java:289) at org.apache.struts.config.FormBeanConfig.createActionForm(FormBeanConfig.java:357) at org.apache.struts.chain.commands.CreateActionForm.execute(CreateActionForm.java:92) at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51) at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304) at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3498) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(Unknown Source) at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180) at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086) at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Please help...
Forgive your enemies, but never forget their names.
Sandip Ram
Greenhorn
Posts: 4
posted 11 years ago
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Hi,
I am completely verify your code.
I am sure that your code is 100% correct.
So it may be your server problem not your code.
Please try once in your system it will run.
Thanks.
Gaurav Manral
Greenhorn
Posts: 17
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posted 11 years ago
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i have tried running it.
but NullPointerException is still there...
Forgive your enemies, but never forget their names.
Gaurav Manral
Greenhorn
Posts: 17
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posted 11 years ago
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the same code executes perfectly on
tomcat
...
can one suggest what is the problem with my weblogic 10...??
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