用validation验证输入框为空时，输入框变红

<div class="box-content">

<form:form modelAttribute="expressPriceForm" action="addExpressPrice" method="post">

<form:hidden path="expressId" value="${expressPriceForm.expressId}" />

<div class="alert alert-info">${message}<form:errors path="*"></form:errors></div>

 <table class="table table-bordered responsive">

 <tr><td style="background-color: #f9f9f9;">省</td>

<td><div class="controls">

<form:select path="provinceId">

<form:options items="${provinceList}" itemLabel="label" itemValue="value" /></form:select></div></td>

<td style="background-color: #f9f9f9;">分隔重量g<span style="color:red;">*</span></td>

<td><form:input path="separateWeight" cssClass="form-control" cssErrorClass="form-control error"/></td>

<td style="background-color: #f9f9f9;">首重费（元）<span style="color:red;">*</span></td>

<td><form:input path="firstHeavyPrice" cssClass="form-control" cssErrorClass="form-control error" /></td>

</tr><tr>

<td style="background-color: #f9f9f9;">续重费（元）<span style="color:red;">*</span></td>

<td><form:input path="continuedHeavyPrice" cssClass="form-control" cssErrorClass="form-control error"/></td>

<td style="background-color: #f9f9f9;">状态</td>

<td><div class="controls">

<form:select path="status">

<form:option value="启用">启用</form:option>

<form:option value="备用">备用</form:option></form:select>

</div></td>

<td style="background-color: #f9f9f9;">备注</td>

<td><input name="note" class="form-control" /></td></tr> </table>

<div class="input-group has-success col-md-12" align="right">

<button type="submit" class="btn btn-success">提 交</button>

 &nbsp;&nbsp;&nbsp;&nbsp;

<a href="initExpressPrice?expressId=${expressPriceForm.expressId}"  class="btn btn-danger">取 消</a> </div>

转载于:https://my.oschina.net/u/2411775/blog/484794