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Could not retrieve data using JSTL

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posted 9 years ago

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Hello guys,

I am facing a problem in my JSTL implementation...

The below is my jsp code where i retrieve my data belonging to 'Bean' class

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
	pageEncoding="ISO-8859-1" import="java.util.*,com.Bean"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page isELIgnored="false"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
<script type="text/javascript" src="javascript/onClickRad.js">
</script>
</head>
<body>
<form action="" name="frm" method="post">
<div style="display: inline">Update Existing Record <input
	type="radio" id="radA" value="UpdateExistingRecord" name="updRad"
	onclick="return disable(this);" />   Insert New Record <input
	type="radio" id="radB" value="InsertNewRecord" checked="checked"
	name="updRad" onclick="return disable(this);" />   Delete
Record <input type="radio" id="radC" value="DeleteRecord" name="updRad"
	onclick="return disable(this);" /><br />
</div>
<br />
<br />
</form>
<form action="" method="post" name="frmbtn"><label id="lblName">User
Name:</label>    <input id="txtName" name="txt" type="text" />
   <label id="lblEmail">Email ID:</label>    <input
	id="txtEmail" type="text" /><br />
<label id="lblCmp">Company:</label>    <input id="txtCmp"
	type="text" />    <label id="lblDesg">Designation:</label>
   <input id="txtDesg" type="text" /><br />
<br />

<div><input id="btnIns" name="btnInsert" type="submit"
	value="Insert" onclick="return validate(this);" />    <input
	id="btnUpd" name="btnUpdate" type="submit" value="Update"
	disabled="disabled" onclick="return validate(this);" />    <input
	id="btnDlt" name="btnDelete" type="submit" value="Delete"
	disabled="disabled" onclick="return validate(this);" />   </div>
</form>
<br />
<form action="viewdetails.do" method="post" name="frmView"><input
	id="btnVw" name="btnView" type="submit" value="View Details"
	disabled="disabled" /></form>
<table border="1" width="500">
	<tr>
		<td width="119"><b>ID</b></td>
		<td width="100"><b>Password</b></td>
		<td width="234"><b>USER NAME</b></td>
		<td width="234"><b>DESIGNATION</b></td>

</tr>

<%
		List<Bean> list = (List<Bean>) request.getAttribute("FormDatasy");
	%>
	<c:forEach items="$(list)" var="element">
		<tr>
			<td>${element.getId}</td>
			<td>${element.getPwd}</td>
			<td>${element.getName}</td>
			<td>${elemen.getDesg}</td>
		</tr>
	</c:forEach>

</table>
</body>
</html>

The following is my Bean class

This is my servlet class where I set the attribute

package serv;

import java.io.IOException;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.Bean;
import com.persist;

/**
 * Servlet implementation class Display
 */
public class Display extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public Display() {
        super();
        // TODO Auto-generated constructor stub
    }

/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		
		String page = "FormDatas.jsp";
		persist datas = new persist();
		
		List<Bean> newlist = datas.select();
		
		request.setAttribute("FormDatasy", newlist);
		
		RequestDispatcher disp = request.getRequestDispatcher(page);
		
		if(disp != null){
			disp.forward(request,response);
		}
		
	}

}

Following is the error that i am gettting..

javax.el.PropertyNotFoundException: Property 'getPwd' not found on type java.lang.String
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:193)
at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:170)
at javax.el.BeanELResolver.property(BeanELResolver.java:279)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:60)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
at org.apache.el.parser.AstValue.getValue(AstValue.java:118)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:935)
at org.apache.jsp.FormDatas_jsp._jspx_meth_c_005fforEach_005f0(FormDatas_jsp.java:169)
at org.apache.jsp.FormDatas_jsp._jspService(FormDatas_jsp.java:121)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at serv.Display.doPost(Display.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Unknown Source)
Aug 21, 2011 7:25:06 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet Display threw exception
javax.el.PropertyNotFoundException: Property 'getPwd' not found on type java.lang.String
at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:193)
at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:170)
at javax.el.BeanELResolver.property(BeanELResolver.java:279)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:60)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
at org.apache.el.parser.AstValue.getValue(AstValue.java:118)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:935)
at org.apache.jsp.FormDatas_jsp._jspx_meth_c_005fforEach_005f0(FormDatas_jsp.java:169)
at org.apache.jsp.FormDatas_jsp._jspService(FormDatas_jsp.java:121)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at serv.Display.doPost(Display.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Unknown Source)

Please help me solve this problem...

Thanks and regards
Hemanth.

Hemant Thard

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Posts: 122

posted 9 years ago

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Hi Hemanth,

try using

hemanth acharya

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Posts: 51

posted 9 years ago

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Hi Hemant thard,

yea i got it right...

Changed two things,
1. In my scriplet i added pageContext.setAttribute("list",list);(because "list" inside scriplet is not "visible" to the page.)
2. Changed the code in JSTL tag as you mentioned.

Working like charm now...

Thank you,

Hemanth acharya.