我有一个Bootstrap模式，一旦你的数据在会话中显示，一次空字段，以便从管理员创建一个新用户（我有两个按钮＆＃34;新＆＃34;和＆＃34;用户在会话＆ ＃34;指向相同的模态）。我使用会话来填充字段＆＃34;用户在会话中＆＃34;使用jQuery，我已将其删除，以方便新用户的插入。但是，一旦删除，我就没有按钮＆＃34;会话中的用户。＆＃34;
如何删除会话后重新填充会话字段？
<div id="modalInsertOrUpdate" class="modal fade" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header centerMyText">
<h4 class="modal-title">Gestione Dati</h4>
</div>
<form id="formInserOrUpdate" class="form-horizontal" action="updateUtente.action">
<div class="modal-body">
<div class="form-group">
<label for="id" class="col-sm-2 control-label">ID</label>
<div class="col-sm-9">
<s:textfield readonly="true" type="text" name="id"
value="%{#session.utenteLoggato.id}"
class="form-control"
id="id"/>
</div>
<div class="col-sm-1">
<a href="#" id="infoId" data-toggle="popover" rel="popover" title="ID"
data-content="ID generato automaticamente"><span
class="glyphicon glyphicon-info-sign"></span>
</a>
</div>
</div>
<div class="form-group">
<label for="nome" class="col-sm-2 control-label">Nome</label>
<div class="col-sm-10">
<s:textfield type="text" name="nome" class="form-control"
value="%{#session.utenteLoggato.nome}"
id="nome"/>
</div>
</div>
<div class="form-group">
<label for="cognome" class="col-sm-2 control-label">Cognome</label>
<div class="col-sm-10">
<s:textfield type="text" name="cognome" class="form-control"
value="%{#session.utenteLoggato.cognome}"
id="cognome"/>
</div>
</div>
<div class="form-group">
<label for="mail" class="col-sm-2 control-label">Mail</label>
<div class="col-sm-10">
<s:textfield type="email" cssErrorClass="errorLabel" name="mail" class="form-control"
value="%{#session.utenteLoggato.mail}"
id="mail"/>
</div>
</div>
<div class="form-group">
<label for="telefono" class="col-sm-2 control-label">Telefono</label>
<div class="col-sm-10">
<s:textfield type="text" name="telefono" class="form-control"
value="%{#session.utenteLoggato.telefono}"
id="telefono"/>
</div>
</div>
<s:if test='#session.utenteLoggato.tipoUtente.equalsIgnoreCase("Admin")'>
<div class="form-group">
<label for="tipoUtente" class="col-sm-2 control-label">Permessi</label>
<div class="col-sm-10">
<select name="tipoUtente" id="tipoUtente" disabled>
<option value="user" selected>User</option>
<option value="admin"
<s:if test='#session.utenteLoggato.tipoUtente.equalsIgnoreCase("Admin")'>selected</s:if> >
Admin
</option>
</select>
</div>
</div>
</s:if>
<div class="form-group">
<label for="password" class="col-sm-2 control-label">Password</label>
<div class="col-sm-9">
<s:textfield type="password" name="password" class="form-control"
id="password"/>
</div>
<div class="col-sm-1">
<a href="#" id="infoButton" rel="popover" data-toggle="popover" title="Password"
data-content="La password deve essere di 8 caratteri."><span
class="glyphicon glyphicon-info-sign"></span>
</a>
</div>
</div>
<div class="form-group">
<label for="passwordAgain" class="col-sm-2 control-label">Ripeti Password</label>
<div class="col-sm-9">
<s:textfield type="password" name="passwordAgain" class="form-control"
id="passwordAgain"/>
</div>
</div>
<div class="form-group">
<div>
<div class="modal-footer">
<button type="button" class="btn btn-default pull-left" data-dismiss="modal">Close
</button>
<s:submit type="button" id="modificaButton" class="btn btn-primary pull-right">Modifica</s:submit>
</div>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
<ul class="dropdown-menu">
<li><a href="#" data-toggle="modal" data-target="#modalMyPassword">
<span class="glyphicon glyphicon-edit"> Password</span></a></li>
<li><a href="#" id="myUtente" data-toggle="modal" data-target="#modalInsertOrUpdate">
<span class="glyphicon glyphicon-pencil"> Personale</span></a></li>
<s:if test='#session.utenteLoggato.tipoUtente.equalsIgnoreCase("admin")'>
<li><a href="#" id="addUtente" data-toggle="modal" data-target="#modalInsertOrUpdate">
<span class="glyphicon glyphicon-user"> *New</span></a></li>
</s:if>
<li><a href="index.jsp"><span class="glyphicon glyphicon-off"> Logout</span></a></li>
</ul>
</div>
<s:include value="modalInsertOrUpdate.jsp"></s:include>
答案 0 :(得分：0)
对于您的情况，将会话数据存储到隐藏的输入字段并使用JQuery以便在单击一个按钮或另一个按钮时检索它们更容易，这里您有一个工作小提琴。出于时间目的，我使用了一个简单的表单，但您可以随时更改代码以适合您的模态。希望这可以提供帮助。
$(document).ready(function(){
$('#new').click(function() {
$('.form-input').each(function(index, element){
$(this).val('');
});
});
$('#session').click(function() {
$('.form-input').each(function(index, element){
$(this).val($('#hidden-' + $(this).attr('id')).val());
});
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<button type="button" id="new">New</button>
<button type="button" id="session">Session</button>
<form id="myForm">
<input type="hidden" id="hidden-id" value="1">
<input type="hidden" id="hidden-username" value="abcd">
<input type="hidden" id="hidden-email" value="abcd@abcd.it">
<input type="hidden" id="hidden-name" value="abcd">
<input type="hidden" id="hidden-surname" value="abcd">
<input type="text" class="form-input" id="id" value="1">
<input type="text" class="form-input" id="username" value="abcd">
<input type="text" class="form-input" id="email" value="abcd@abcd.it">
<input type="text" class="form-input" id="name" value="abcd">
<input type="text" class="form-input" id="surname" value="abcd">
<input type="password" id="password">
<input type="password" id="password-confirm">
</form>
当然，由于您使用的是Struts2，隐藏的输入不应该使用getter / setter来引用您的操作中的任何变量，否则它们将被调用。
另一种解决方案可能是使用这样的数据属性：
<!-- In your form put the data attributes -->
<form id="myForm" data-id="%{#session.utenteLoggato.id}" data-username="%{#session.utenteLoggato.username}"> <!-- and so on -->
<!-- Modify the script in order to get data attribute instead of val -->
$('#session').click(function() {
$('.form-input').each(function(index, element){
$(this).val($('#myForm').data($(this).attr('id')));
});
});
我认为第二种解决方案可以更加优雅＆＃34;