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Could not retrieve data using JSTL

hemanth acharya

Ranch Hand

Posts: 51

posted 6 years ago

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

Ranch Hand

Posts: 122

posted 6 years ago

Hi Hemanth,

try using

hemanth acharya

Ranch Hand

Posts: 51

posted 6 years ago

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.

It is sorta covered in the JavaRanch Style Guide.

Could not retrieve data using JSTL

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