Controller of Spring MVC working but model is empty in JSP
Question
Visit my previous question to see my configurations of spring mvc Spring MVC Controller working but not creating the specified response URL ,It is creating the url from request mapping string
Now am facing one strange error in jsp page
The Controller class method is
@RequestMapping(value="/branchshow.travel", method=RequestMethod.GET)
public String getBranchShow(){
List<BranchModel> branches = branchService.getBranches();
System.out.println(branches.size());
new ModelMap().addAttribute("branches", branches);
return "/branch/branchshow";
}
I got the requested jsp page but the model named 'branches' is empty in jsp. I got the size of list as 140 in console. So it means that returned model is empty in 'branchshow.jsp'
I checked many links, all are saying its because of jsp version but am using 3.0 my web.xml starting is
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID"
version="3.0">
so the version is 3.0
I would like to show my branchshow.jsp code here
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page isELIgnored="false" %>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Service-Home</title>
<!-- resources linking -->
<spring:url value="/resources/js/login_forms.js" var="login_forms"/>
<spring:url value="/resources/js/jquery.js" var="jqueryjs"/>
<spring:url value="/resources/js/bootstrap.min.js" var="bootstrapminjs"/>
<spring:url value="/resources/css/bootstrap.min.css"
var="bootstrapmincss"></spring:url>
<spring:url value="/resources/css/custom.css" var="customcss">
</spring:url>
<spring:url value="/resources/css/simple-sidebar.css" var="sidebarcss">
</spring:url>
<spring:url value="/resources/images/toggle.png" var="hide"/>
<spring:url value="/resources/images/insert.png" var="insert"/>
<spring:url value="/resources/images/edit.png" var="update"/>
<spring:url value="/resources/images/delete.png" var="delete"/>
<spring:url value="/resources/images/search.png" var="search"/>
<!-- Custom CSS -->
<link rel="stylesheet" href="${bootstrapmincss}">
<link rel="stylesheet" href="${sidebarcss}">
<link rel="stylesheet" href="${customcss}">
</head>
<body>
<div id="wrapper">
<!-- Sidebar -->
<div id="sidebar-wrapper">
<ul class="sidebar-nav">
<li>
<font color="WHITE" style="font-style:bold">CALICUT TRAVELS-SERVICES</font>
</li>
<li>
<a href="#">Master</a>
<ul>
<li><a href="branchinsert.travel">Branch</a></li>
<li><a href="../hotel/branchinsert.travel">Hotel</a></li>
<li><a href="../airline/branchinsert.travel">Air line</a></li>
<li><a href="../customers/branchinsert.travel">Customers</a></li>
<li><a href="../staff/branchinsert.travel">Staff</a></li>
<li><a href="../suppliers/branchinsert.travel">Suppliers</a></li>
</ul>
</li>
<li>
<a href="#">Packages</a>
<ul>
<li><a href="#">Airline</a></li>
<li><a href="#">Hotel</a></li>
<li><a href="#">Transportation</a></li>
</ul>
</li>
<li>
<a href="#">Sales Invoices</a>
<ul>
<li><a href="#">Book rooms</a></li>
<li><a href="#">Book tickets</a></li>
<li><a href="#">Book visa</a></li>
<li><a href="#">Book package</a></li>
</ul>
</li>
<li>
<a href="#">Sales Returns</a>
<ul>
<li><a href="#">Cancel rooms</a></li>
<li><a href="#">Cancel tickets</a></li>
<li><a href="#">Cancel visa</a></li>
<li><a href="#">Cancel Package</a></li>
</ul>
</li>
<li>
<a href="#">Miscellaneous</a>
<ul>
<li><a href="#">Taxi</a></li>
<li><a href="#">Food</a></li>
</ul>
</li>
<li>
<a href="#">Purchase</a>
<ul>
<li><a href="#">Airline</a></li>
<li><a href="#">Hotel</a></li>
<li><a href="#">Visa</a></li>
<li><a href="#">Transportation</a></li>
<li><a href="#">Packages</a></li>
</ul>
</li>
<li>
<a href="#">Purchase Returns</a>
<ul>
<li><a href="#">Airline</a></li>
<li><a href="#">Hotel</a></li>
<li><a href="#">Visa</a></li>
<li><a href="#">Transportation</a></li>
<li><a href="#">Package</a></li>
</ul>
</li>
<li>
<a href="#">Reports</a>
<ul>
<li><a href="#">Sales invoices</a></li>
<li><a href="#">sales returns</a></li>
<li><a href="#">purchase invoices</a></li>
<li><a href="#">purchase returns</a></li>
<li><a href="#">packages</a></li>
<li><a href="#">Customer summery report</a></li>
</ul>
</li>
</ul>
</div>
<!-- /#sidebar-wrapper -->
<!-- Page Content -->
<div id="service-home-conetent">
<div class="container-fluid">
<div class="row">
<table>
<tr>
<th align="center" width='20'><a href="#menu-toggle" id="menu-toggle"><img alt="HIDE" src="${hide}" width='20'></a></th>
<th align="center" width="400" colspan="4"><h2>BRANCH</h2></th>
</tr>
<tr align="center">
<th align="center" width='200'></th>
<th align="center" width='20'><a href="branchinsert.travel"><img src="${insert}" width='20'></a></th>
<th align="center" width='20'><a href="branchupdate.travel"><img src="${update}" width='20'></a></th>
<th align="center" width='20'><a href="branchdelete.travel"><img src="${delete}" width='20'></a></th>
<th align="center" width='20'><a href="branchshow.travel"><img src="${search}" width='20'></a></th>
</tr>
<tr>
<th align="center" width='200'></th>
<th align="center" width='20'>Insert</th>
<th align="center" width='20'>update</th>
<th align="center" width='20'>Delete</th>
<th align="center" width='20'>Search</th>
</tr>
</table>
<input type="hidden" id='form_use' value='view'/>
<fieldset class="well the-fieldset">
<legend class="the-legend"> BRANCHES </legend>
<table>
<tr>
<th> Branch Name</th>
</tr>
<c:forEach var="branch" items="${branches}">
<tr>
<td>${branch.branchName}</td>
</tr>
</c:forEach>
</table>
</fieldset>
</div>
</div>
</div>
<!-- /#page-content-wrapper -->
</div>
<!-- /#wrapper -->
<!-- jQuery -->
<script src="${jqueryjs}"></script>
<!-- Bootstrap Core JavaScript -->
<script src="${bootstrapminjs}"></script>
<script src="${login_forms}"></script>
<!-- Menu Toggle Script -->
<script>
$("#menu-toggle").click(function(e) {
e.preventDefault();
$("#wrapper").toggleClass("toggled");
});
</script>
I enabled EL in jsp then also this issue persists. If anybody faced this issue before let me know the solution
1 answers
solution1
0 2016-05-26 14:16:53
On the line you create a new ModelMap but you don't return it
new ModelMap().addAttribute("branches", branches);
You method could return a ModelAndView object to store your model attribute 'branches' and view '/branch/branchshow'
@RequestMapping(value="/branchshow.travel", method=RequestMethod.GET)
public ModelAndView getBranchShow() {
ModelAndView mav = new ModelAndView();
List<BranchModel> branches = branchService.getBranches();
System.out.println(branches.size());
mav.getModelMap().put("branches", branches);
mav.setViewName("/branch/branchshow");
return mav;
}
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