struts error- org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot find bean

StackOverflow https://stackoverflow.com/questions/23152530

Question

I am trying out a simple struts application that will pass a String value from a java class file to a jsp.

Here the corresponding files of the struts application-

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app    PUBLIC
    "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

    <display-name>Hello World Struts Application</display-name>

    <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>
        <init-param>
            <param-name>debug</param-name>
            <param-value>3</param-value>
        </init-param>
        <init-param>
             <param-name>detail</param-name>
             <param-value>3</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>view.jsp</welcome-file>
    </welcome-file-list>

</web-app>

struts-config.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
        "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>

    <form-beans>
        <form-bean name="myForm" type="com.myForm" />
    </form-beans>

    <action-mappings>
        <action path="/view" scope="request" name="myForm" type="com.myAction" validate="false">
                <forward name="success" path="/first" />
        </action>
        <action path="/view"
                forward="/view.jsp"/>
        <action path="/first"
                forward="/first.jsp" />
    </action-mappings>
</struts-config>

view.jsp

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>

    <body>
        <form action="first.do">
            Enter name :
            <input type="text" name="name"/>
            <input type="submit" value="Enter"/>
        </form>

    </body>
</html>

first.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>

    <body>
        Welcome!!!!!!!!

        <bean:write name="myForm" property="st"/>
    </body>
</html>

myForm.java

package com;

import javax.servlet.http.HttpServletRequest;

public class myForm extends org.apache.struts.action.ActionForm {

    private String st;

    public String getSt()
    {
        return st;
    }

    public void setSt(String st)
    {
        this.st=st;
    }

    public myForm(String st)
    {
        this.st=st;
    }
}

myAction.java

package com;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;


public class myAction extends org.apache.struts.action.Action {
    public ActionForward execute(ActionMapping mapping, ActionForm form,
    HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException {

        myForm form1=(myForm) form;

        String s="Karthikeyan";

        System.out.println("Hello "+s);

        form1.setSt(s);

        //RequestDispatcher reqDispatcher = getRequestDispatcher("view.jsp");
        //reqDispatcher.forward(request,response);




        return (mapping.findForward("success"));
    }
}

Even though I have set the classpath for the class files, I get the following error when I compile myAction.java-

myAction.java:18: cannot find symbol
symbol  : class myForm
location: class com.myAction
                myForm form1=(myForm) form;
                ^
myAction.java:18: cannot find symbol
symbol  : class myForm
location: class com.myAction
                myForm form1=(myForm) form;
                              ^

When I try to execute the application on a web browser, I get the following error-

org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot find bean: "myForm" in any scope

I have stuck on this issue for quite sometime without any solution. Please help me out.

Was it helpful?

Solution 2

Create a new project, set classpaths,execute it and it will work :). It worked for me.

OTHER TIPS

you have missed the getter and setter methods for myform class.please add getter and setter methods for myform class in myAction class and add the filters in web.xml.

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