使用了struts1的html标签后,jsp页面显示空白,用普通标签显示正常

<%@ page language="java" pageEncoding="UTF-8"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">


<title></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">
<link href="/gdexam/common/common.css" rel="stylesheet" type="text/css">
<script type="text/JavaScript" src="My97DatePicker/WdatePicker.js"></script> 
<script type="text/javascript" src="My97DatePicker/calendar.js"></script>










<tr>
    <td>
    <table width="100%" border="0" cellpadding="0" cellspacing="0" class="kuang">
        <tr>
            <td>
                <table width="100%" border="0" cellspacing="1" cellpadding="2">
                    <tr class="bgcolor_tr">
                        <th>
                            <bean:message key="主题名称" />
                        </th>
                        <td>
                            <html:text property="proTile" styleClass="kuang_srk" size="40"></html:text>
                        </td>
                    </tr>

                    <tr class="bgcolor_tr">
                        <th>
                            <bean:message key="开始时间" />
                        </th>
                        <td>
                            <html:text property="createTime" styleClass="kuang_srk" size="40" onClick="WdatePicker()"></html:text>
                        </td>
                    </tr>

                    <tr class="bgcolor_tr">
                        <th>
                            <bean:message key="结束时间" />
                        </th>
                        <td>
                            <html:text property="endTime" styleClass="kuang_srk" size="40" onClick="WdatePicker()"></html:text>
                        </td>
                    </tr>

                    <tr class="bgcolor_tr">
                        <th>
                            <bean:message key="填报状态" />
                        </th>
                        <td>
                            <html:select property="proState">
                                 <html:option value="">=== 请选择  ===</html:option>
                                 <html:option value="1">截止填报</html:option>
                                 <html:option value="0">正在填报</html:option>
                            </html:select>
                        </td>
                    </tr>

                </table>
            </td>
        </tr>
    </table>

    </td>
</tr>
</table>
</table>

</html:form>
<html:javascript formName="proThemeForm" />
</body>

/html:html




/html:submit


/html:cancel