问题
I have a form with two ModelAttributes one is citizens and the other is punishment. The two objects are separated by jquery tabs. I am having problems in getting the items on the form to display properly some are being displayed and some are not. I mean the html elements.
I am not sure how the Controller would look when there is multiple ModleAttributes on the page. Under is a sample of the code:
Page
<title>Citizen Registration</title>
</head>
<body>
<div id=\"tabs\">
<ul>
<li><a href=\"#tab1\">Citizen Registration</a></li>
<li><a href=\"#tab2\">Punishment</a></li>
</ul>
<div id=\"tab1\">
<form:form id=\"citizenRegistration\" name =\"citizenRegistration\" method=\"post\" modelAttribute=\"citizens\" action=\"citizen_registration.htm\">
<div id=\"divRight\" class=\"mainDiv\">
<div class=\"divGroup\" id=\"divCharInfo\">
<fieldset>
<legend>Characteristics Info</legend>
<ol>
<li><form:label for=\"photo\" path=\"photo\">Select Photo</form:label>
<form:input path=\"photo\" type=\"file\" id=\"photo\" title=\"Upload a photo\"/><form:errors path=\"photo\" id=\"errors\"/></li>
<li>
<label>Select Gender</label>
<form:select path=\"genderId\" id=\"genderId\" title=\"Select Your Gender\">
<form:options items = \"${gender.genderList}\" itemValue=\"genderId\" itemLabel=\"genderDesc\" />
</form:select>
<form:errors path=\"genderId\" class=\"errors\"/>
</li>
<li><form:label for=\"weight\" path=\"weight\">Enter Weight <i>(lbs)</i></form:label>
<form:input path=\"weight\" id=\"weight\" title=\"Enter Weight\"/><form:errors path=\"weight\" id=\"errors\"/>
</li>
<li><form:label for=\"height\" path=\"height\">Enter Height <i>(feet)</i></form:label>
<form:input path=\"height\" id=\"height\" title=\"Enter Height\"/><form:errors path=\"height\" id=\"errors\"/>
</li>
.......................
<div id=\"tab2\">
<form:form id=\"punishmentRegistration\" name =\"punishmentRegistration\" method=\"post\" modelAttribute=\"punishment\" action=\"punishment_registration.htm\">
<ol>
<li>
<form:label for =\"punishmentId\" path=\"punishmentId\">Punishment Number</form:label>
<form:input path=\"punishmentId\" id=\"punishmentId\"/><form:errors path=\"punishmentId\" id=\"errors\"/>
</li>
<li>
<form:label for=\"crimeRecNo\" path=\"crimeRecNo\">Select Crime</form:label>
<form:select path=\"crimeRecNo\" id=\"CrimeRecNo\" title=\"Select Crime\">
<form:options items = \"${crime.crimeList}\" itemValue=\"crimeRecNo\" itemLabel=\"crimeRecNo\" title=\"crimeDesc\"/>
</form:select>
<form:errors path=\"crimeRecNo\" id=\"errors\"/>
</li>
<li>
<form:label for =\"monitoringStDate\" path=\"monitoringStDate\"> Start Date </form:label>
<form:input path=\"monitoringStDate\" id=\"monitoringStDate\"/><form:errors path=\"monitoringStDate\" id=\"errors\"/>
</li>
<li>
<form:label for =\"monitoringEnDate\" path=\"monitoringEnDate\"> End Date </form:label>
<form:input path=\"monitoringEnDate\" id=\"monitoringEnDate\"/><form:errors path=\"monitoringEnDate\" id=\"errors\"/>
</li>
</ol>
</form:form>
</div>
</div>
</body>
</html>
Controller
@RequestMapping(value=\"citizen_registration.htm\", method = RequestMethod.GET)
public ModelAndView loadPage(HttpServletRequest request,
HttpServletResponse response,
@ModelAttribute Citizens citizens, @ModelAttribute Punishment punishment,
BindingResult result,
ModelMap m, Model model) throws Exception {
//code here
return new ModelAndView(\"citizen_registration\");
This is my code however when i run it nothing in tab2 is displayed andnot all elements in tab1 is shown.
回答1:
I don't think so if you can bind multiple models using the Spring form. In fact you should take a look in the spring binding form. http://static.springsource.org/spring/docs/1.1.5/taglib/tag/BindTag.html Take a look in the sample code. I have not tested the code. Let know in case of any issues.
Model
public class User{
private String username;
private String password;
..Setter and Getters
}
public class UserProfile{
private String firstName;
private String lastName;
setter and getter
}
Controller
@Controller
public class MyController{
@RequestMapping(....)
public String newAccountForm(ModelMap map){
User user = new User(); //Would recommend using spring container to create objects
UserProfile profile = new UserProfile();
map.addAttribute('user', user);
map.addAttribute('profile', profile);
return "form"
}
@RequestMapping(....)
public String newAccountForm(@ModelAttrbite('User')User user, BindingResult resultUser, @ModelAttribute('UserProfile')UserProfile userProfile, BindingResult resultProfile){
//Check the binding result for each model. If not valid return the form page again
//Further processing as required.
}
}
JSP
<%@taglib uri="http://www.springframework.org/tags" prefix="spring">
<form action="" method="post">
<spring:bind path="user.username">
<input type="text" name="${status.expression}" value="${status.value}"><br />
</spring:bind>
<spring:bind path="user.password">
<input type="password" name="${status.expression}" value="${status.value}"><br />
</spring:bind>
<spring:bind path="profile.firstName">
<input type="text" name="${status.expression}" value="${status.value}"><br />
</spring:bind>
<spring:bind path="profile.lastName">
<input type="text" name="${status.expression}" value="${status.value}"><br />
</spring:bind>
<input type="submit" value="Create"/>
</form>
回答2:
I already gave alternate approach in this link here
<form:form method="POST" modelAttribute="applicationGeneralInformation">
<div class="section2">
<h2>General Informaion</h2>
<form:input type="hidden" path="id" id="id"/>
<label for="app_version">Version</label>: <form:input type="text" id="app_version" path="version"/><br/>
<label for="app_func_desc">Description</label>: <form:input type="text" id="app_func_desc"
path="functionalDescription"/><br/>
<label for="app_sec_func">Functions</label>: <form:input type="text" id="app_sec_func"
path="securityFunctions"/><br/>
</div>
<div class="section2">
<h2>Application Content</h2>
<form:form method="POST" modelAttribute="applicationContent">
<div>
<h3>CIA Rating</h3>
<label for="CIARating">CIA Rating</label>: <form:select type="text" id="CIARating" path="CIARating">
<form:option value="1">1</form:option>
<form:option value="2">2</form:option>
<form:option value="3">3</form:option>
<form:option value="4">4</form:option>
</form:select><br/><br/>
</div>
<div>
<h3>Business Continuity and Disaster Recovery</h3>
<div>
<h4>RTO</h4>
<label for="RTO">RTO</label>: <form:select type="text" id="RTO" path="RTO">
<form:option value="1">< 2<sub>Hrs</sub></form:option>
<form:option value="2">2<sub>Hrs</sub>-4<sub>Hrs</sub> </form:option>
<form:option value="3">4<sub>Hrs</sub>-48<sub>Hrs</sub></form:option>
<form:option value="4">> 48<sub>Hrs</sub></form:option>
</form:select><br/>
</div>
<div>
<h4>RPO</h4>
<label for="RPO">RPO</label>: <form:input type="text" id="RPO" path="RPO"/><br/>
</div>
</div>
</form:form>
<input type="submit" value="Submit">
</div>
</form:form>
回答3:
<script type="text/javascript">
$(document).ready(
function() {
$("#userAttendance").submit(
function(e) {
e.preventDefault();
jQuery.ajaxSetup({
async : false
});
var a = "${pageContext.request.contextPath}";
alert(a);
$.post($(this).attr("action"), $(this).serialize(),
function(response) {
$("#showTableByDate").html(response);
jQuery.ajaxSetup({
async : true
});
});
});
//Date picker
$('#datepicker').datepicker({
autoclose : true
});
});
来源：https://stackoverflow.com/questions/13242394/spring-mvc-multiple-modelattribute-on-the-same-form