使用struts显示标记在页面之间导航时发生java错误

Question

在显示标签的页面之间移动时，我遇到以下错误：

Request [/seatreportsubmit] does not contain handler parameter named 'method'. This may be caused by whitespace in the label text.

但是，当我两次单击搜索按钮时，它将移动到下一页

在过去的几天里，我一直在努力解决这个问题。任何帮助都将不胜感激

以下是我的一些代码：

<table width="100%" align="center">
    <tr>
        <td align="Center">
           <input type="button" class="buttonstyle" value="<bean:message key="button.search" />" onclick="searchsubmit();" styleClass="buttonstylebig">&nbsp;
           <input type="button" class="buttonstyle" value="<bean:message key="button.reset" />" onclick="clearValues();">
        </td>
    </tr>
</table>

struts配置：

<action path="/seatreportsubmit"
        type="com.ford.ape.seatreport.actionobject.SeatRprtAction"
        name="SeatReportForm" scope="request" input="seatreport.details"
        validate="true" parameter="method">
        <forward name="openSeatDetails" path="seatreport.details" />
        <forward name="showSeatDetails" path="seatreport.detailsreport" />          
</action>

瓷砖定义：

<definition name="seatreport.details" extends="base.definition">
    <put name="body" value="/jsp/SeatReport/SeatVacReport.jsp" />
</definition>
<definition name="seatreport.detailsreport" extends="base.definition">
    <put name="body" value="/jsp/SeatReport/SeatVacReportDetailed.jsp" />
</definition> 

js:

function searchsubmit()
{
if(search()==true)
{
    if(document.forms[0].seatReportType.value=='Summary Report')
     {
        document.forms[0].seatLocation.value='';
        document.forms[0].seatBuilding.value='';
        document.forms[0].seatFloor.value='';
        document.forms[0].seatType.value='';
        document.forms[0].seatStatus.value='';
        document.forms[0].seatCompany.value='';
        document.forms[0].seatDepartment.value='';
        document.forms[0].seatSubDepartment.value='';
        document.forms[0].seatLL5.value='';
        document.forms[0].seatLL6.value='';

        document.forms[0].method.value="loadPage";
        document.forms[0].submit();
    }

    else if(document.forms[0].seatReportType.value=='Detailed Report')
     {
        document.forms[0].method.value="showSeatRprt";
        document.forms[0].submit();
     }   
}
}

下面是使用的显示标签

<display:table name="requestScope.SeatReportForm.rprtData" id="table" export="true" sort="list" requestURI="/seatreportsubmit.do"   pagesize="20" align="center"  class="table_main" width="100%">

<display:column width="5%"  align="center" class="hidden" media="Excel" title="Request No" headerClass="table_header" >
<%=((SeatRprtVO)table).getSeatNo()%>
</display:column>
<display:column  class="label_text" property="seatLocation" title="Location" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="seatBuilding" title="Building" headerClass="table_header" width="3%" align="center"/>
<display:column  class="label_text" property="seatFloor" title="Floor" headerClass="table_header" width="4%" align="center"/>
<display:column  class="label_text" property="seatNo" title="Seat No" headerClass="table_header" width="4%" align="center"/>
<display:column  class="label_text" property="seatType" title="Seat Type" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="seatStatus" title="Seat Status" headerClass="table_header" width="7%" align="center"/>   

<%--    <display:column  class="label_text" property="seatCategory" title="Seat Category" 
headerClass="table_header" width="7%" align="center"/> --%>

<display:column  class="label_text" property="cdsID" title="CDSID" headerClass="table_header" width="4%" align="center"/>
<display:column  class="label_text" property="firstName" title="First Name" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="lastName" title="Last Name" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="ll6CdsId" title="LL6 CDSID" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="ll5CdsId" title="LL5 CDSID" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="ll4CdsId" title="LL4 CDSID" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="employeeType" title="Employee Type" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="company" title="Company" headerClass="table_header" width="7%" align="center"/>

<display:column  class="label_text" property="department" title="Department" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="subDepartment" title="Sub-Department" headerClass="table_header" width="7%" align="center"/>
<display:column  class="label_text" property="region" title="Region" headerClass="table_header" width="7%" align="center"/>


<display:setProperty name="export.xls.filename" value="rprtData.xls"/>
<display:setProperty name="css.tr.even" value="row1" />
<display:setProperty name="css.tr.odd" value="row2" />
<display:setProperty name="paging.banner.placement" value="bottom" />
<display:setProperty name="basic.msg.empty_list"  value="No Records Found" />

 </display:table>

Answer 1

您收到的错误消息不言而喻：您缺少method参数

从您的代码来看，您似乎在使用DispatchAction。这种类型的Struts操作包含一系列“个性化的execute方法”，并使用请求参数来确定调用哪个方法。在您的例子中，请求参数被称为method：

<action path="/seatreportsubmit" .... parameter="method">

这必须出现在对您的操作的所有请求中，否则Struts将不知道调用什么方法

我知道你已经有了两个方法，分别是loadPage和showSeatRprt。还有其他的吗？有接收寻呼请求的吗

在页面之间导航时，display标记从其requestURI参数（在您的例子中是requestURI="/seatreportsubmit.do"）开始创建正确的请求URL。我认为这就是缺少method参数的地方

尝试在Action类中添加一个handlePaging方法，然后将display标记的requestURI更改为如下内容：requestURI="/seatreportsubmit.do?method=handlePaging"并查看在浏览页面时它是否获得控制权

Answer 2

谢谢你的回复。。我想我的问题解决了。。。问题是在查询字符串中传递了大量来自请求页面的数据。。。由于查询字符串超过了get请求允许的长度，因此方法='showSeatRprt'稍后会追加到查询字符串中。由于查询字符串被截断，分页无法找到参数方法

因此它显示了相应的信息。。。现在工作正常了