开始时单独导入到jsp的空白页面,时间的函数可以发挥作用,代码如下:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html >
  <head>
  <title>My97date</title>
<script type="text/javascript" src="My97DatePicker/WdatePicker.js"></script>
<script type="text/javascript" src="js/jquery-1.7.2.js"></script></head>

<body>
<form >
 <input id="sdate" class="Wdate" onfocus="WdatePicker({dateFmt:'yyyy-MM-dd',readOnly:true,maxDate:'#F{$dp.$D(\'edate\')}'})" />  
    -  
    <input id="edate" class="Wdate" onfocus="WdatePicker({dateFmt:'yyyy-MM-dd',readOnly:true,minDate:'#F{$dp.$D(\'sdate\')}',startDate:'#F{$dp.$D(\'sdate\',{d:+1})}'})" /><br><br>
<input type="text" id="time" class="Wdate" onfocus="WdatePicker({lang:'zh-cn',dateFmt:'yyyy-MM-dd'})"/>
</form>
<script type="text/javascript">
$(function(){
  $("#time").blur(function(){
  var time =$(this).val();
  if(time==""){
  alert("请选择时间");
  }
  
  
  });

});
</script>
上面的代码可以正常显示时间的格式

实际用到的页面为:

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s"  uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  
    <base href="<%=basePath%>">
    
    <title>My JSP 'info.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
   
</head>

  <body>

   <div class="action">
                        <div class="t">
                            申请休假
                        </div>
                        <div class="pages">                        
                        <form action="${pageContext.request.contextPath }/attence/addleave.action?usid=<s:property value='#session.user1.id' />" method="post" onsubmit="return checkAll()" enctype="application/x-www-form-urlencoded" target="_self1">
                           
                            <table width="90%" border="0" cellspacing="0" cellpadding="0">
                                <tr >
                                        <td align="right" width="30%">姓名:</td><td  align="left"><input type="text" onblur="checkUname()"  name="at.aname" id="at.aname" /></td>
                                </tr>
                                <tr >
                                    <td align="right" width="30%">开始时间:</td><td  align="left"><input type="text" id="sdate"  name="at.astarttime" class="Wdate" onfocus="WdatePicker({dateFmt:'yyyy-MM-dd',readOnly:true,maxDate:'#F{$dp.$D(\'edate\')}'})"  /><a style="color: red">*<span id="span1"></span> </a></td>
                                </tr>
                                <tr >
                                    <td align="right" width="30%">结束时间:</td><td  align="left"><input type="text"  id="edate" name="at.aendtime" class="Wdate" onfocus="WdatePicker({dateFmt:'yyyy-MM-dd',readOnly:true,minDate:'#F{$dp.$D(\'sdate\')}',startDate:'#F{$dp.$D(\'sdate\',{d:+1})}'})"/><a style="color: red">*<span id="span2"></span> </a></td>
                                </tr>    
                                <tr >
                                    <td align="right" width="30%">请假天数:</td><td  align="left"><input type="text"  name="at.aday"  id="aday"/><a style="color: red">*<span id="span3"></span></a></td>
                                </tr>
                                
                                
                                <tr >
                                    <td align="right" width="30%">请假原因:</td><td  align="left"><textarea rows="2" cols="20" id="at.areason" name="at.areason"></textarea></td>
                                </tr>
                                <tr >
                                    <td align="right" width="30%">审批人:</td><td  align="left">
                                    <select id="at.lid" name="at.lid" > 
                                    <s:iterator value="#session.userList1" var="user" status="status">
                                       <option value="<s:property value='id'/>"><s:property value="rname"/></option>
                                       </s:iterator>
                                    </select>
                                    </td>
                                </tr>                                                
                                <tr >
                                    <td align="center" colspan="2">
                                    <br/><input type="submit"  id="save" value="提交申请"  />
                                    <input type="button"  id="return" value="返回" onclick="window.history.back()" />
                                    </td>
                                </tr>
                                
                                </table>
                                </form>
                        </div>
                    </div>  
                 </body>  
</html>


红色区域为时间插件可以显示的顺序,之前的顺序css在最前,其次是jQuery和时间的插件,修改后恢复正常,同时当时使用的是MyEclipse,需要重新启动方可正常显示,所以修改之后,要重新启动服务器.