Jsp + JS + DBLookup +內部情況，解決方案？

Question

在這裏，我有2個標籤的問題，我想如果基於先前所選的項目從列表中還打電話給他們在JSP與條件的文本列表裏面，這裏是我的代碼： 首先JS功能：

<script language="javascript"> 


    var basevalue; 
    function checkoutlet(id) 
{ 
    basevalue= document.getElementsById(id).value; 
    return basevalue; 
} 




</script> 

這裏是JSP部分：

<tr> 
       <td class="txtMF">Base<span class="txtnbmed"><span class="txtredsmall">*</span></span></td> 
       <td class="txtnbmed" Id="base"> 
          <html:select property="spotterBase"> 
          <option value="">-- Select --</option> 
          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.base" /> 
          </html:select> 
         </td> 
      </tr> 
      <tr> 
       <td class="txtMF">Outlet Code</td> 
       <td class="txtnbmed"> 
          <html:select property="spotterOutlet" onchange="checkoutlet('<%=base%>');"> 

          <option value="">-- Select --</option> 

          <script language="javascript"> 
          if (basevalue.equals("Branch")){ 
          </script> 

          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.outletb" /> 

          <script language="javascript"> 
          } else if (basevalue.equals("Dealer")){ 
          </script> 

          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.outletd" /> 
          <script language="javascript"> } </script> 
          </html:select> 
         </td> 
      </tr> 

對不起，代碼有點亂！我需要一些幫助來解決這個問題，通過提前:)謝謝

Answer 1

這裏是誰感興趣的解決方案：

首先在JS部分：

function checkoutlet() 
{ 
document.forms[0].action = "populate_spotter_instant.do"; 
document.forms[0].submit(); 

} 

populate_spotter_instant是一種服務，幫助申請chages instantle它意味着你只需要在表單中寫入，而struts表單將保存新的值，In Service文件是服務，其邏輯是從當前表單獲取值並保存在對象中，類似於此：

private ActionForward doPopulateSpotterInstant(
     ActionMapping mapping, 
     SpotterSelectForm spotterForm, 
     SessionData sessionData) 
     throws Exception 
    { 
    log.debug("doPopulateSpotterInstant | Begin "); 

    SpotterRequestValueObject requestVo = new SpotterRequestValueObject(); 

    String branchCode2 = getBranchCode(sessionData); 
    log.debug("doPopulateSpotterInstant | branchCode:" + branchCode2); 

    requestVo.setBranchCode(branchCode2); 


    String spotterCode = spotterForm.getSpotterCode(); 
    log.debug("doPopulateSpotterInstant | spotterCode:" + spotterCode); 

    String companyCode = spotterForm.getCompanyCode(); 
    log.debug("doPopulateSpotterInstant | companyCode:" + companyCode); 

    String createdBy = getUserID(sessionData); 
    log.debug("doPopulateSpotterInstant | createdBy:" + createdBy); 

    Timestamp createTimestamp = new Timestamp(System.currentTimeMillis()); 
    log.debug("doPopulateSpotterInstant | createdTM:" + createTimestamp); 

    requestVo.setSpotterCode(spotterCode); 

    Gspotter gSpotter = new Gspotter(); 
    GspotterPK pk = new GspotterPK(); 
    pk.setSpCode(spotterCode); 
    pk.setComp_code(companyCode); 
    gSpotter.setComp_id(pk); 
    gSpotter.setName(spotterForm.getSpotterName()); 
    gSpotter.setSpId(spotterForm.getSpotterId()); 
    gSpotter.setBr_code(branchCode2); 
    gSpotter.setType(spotterForm.getSpotterType()); 
    gSpotter.setBase(spotterForm.getSpotterBase()); 
    gSpotter.setOutlet(spotterForm.getSpotterOutlet()); 
    gSpotter.setDesignation(spotterForm.getDesignation()); 
    gSpotter.setContact_no(spotterForm.getSpotterContactNo()); 
    gSpotter.setAddr1(spotterForm.getSpotterAddress1()); 
    gSpotter.setAddr2(spotterForm.getSpotterAddress2()); 
    gSpotter.setAddr3(spotterForm.getSpotterAddress3()); 
    gSpotter.setAddr4(spotterForm.getSpotterAddress4()); 
    gSpotter.setPostcode(spotterForm.getSpotterPostCode()); 
    gSpotter.setCreatedBy(createdBy); 
    gSpotter.setCreateTimestamp(createTimestamp); 

    requestVo.setSpotterObj(gSpotter); 


    log.debug("doPopulateSpotterInstant | End "); 
    return mapping.getInputForward(); 
    } 

OK，現在在JSP部分：

<tr> 
       <td class="txtMF">Base<span class="txtnbmed"><span class="txtredsmall">*</span></span></td> 
       <td class="txtnbmed" id="base"> 
          <html:select property="spotterBase" onchange="javascript:checkoutlet();"> 
          <option value="">-- Select --</option> 
          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.base" /> 
          </html:select> 
         </td> 
      </tr> 
      <tr> 
       <td class="txtMF">Outlet Code</td> 
       <td class="txtnbmed"> 
       <% 

       SpotterSelectForm form = (SpotterSelectForm)request.getAttribute("SpotterSelectForm"); 

       if(form.getSpotterBase() == null){ 
       %>   <html:select property="spotterOutlet" disabled="true"> 

          <option value="">-- Select --</option>        
          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.outletd" > 

          </dblookup:DBLookupTagVer2> 

          </html:select> 

       <% 
       }else if(form.getSpotterBase() == 'B'){ 
       %> 
       <html:select property="spotterOutlet"> 

          <option value="">-- Select --</option>        
          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.outletb" > 

          </dblookup:DBLookupTagVer2> 

          </html:select> 
       <% 
       }else if(form.getSpotterBase() == 'D'){ 
       %> 

          <html:select property="spotterOutlet" > 

          <option value="">-- Select --</option>        
          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.outletd" > 

          </dblookup:DBLookupTagVer2> 

          </html:select> 


       <% 
       }else { 
       %>   <html:select property="spotterOutlet" disabled="true"> 

          <option value="">-- Select --</option>        
          <dblookup:DBLookupTagVer2 lookUpName="common.spotter.outletd" > 

          </dblookup:DBLookupTagVer2> 

          </html:select> 

       <% 
       } 
       %> 

         </td> 
      </tr> 

所以就像你看到的我用Scriplets實例的形式，並使用它的屬性，如已經救了我目前的形式的價值觀，並呼籲在該基地的Dorp的JS方法因此當我改變Base值時，所有的表單值將被重新填充，然後我的插座將有權訪問新的Base值，並且基於它會討厭引用這些QueryTag的合適查詢：

<query cacheDuration="90000" cacheMaxRows="100" key="common.spotter.outletb" toCache="true"> 
    <stmt> 
    <![CDATA[ 
    SELECT BIBRCD, BIBRCD||'-'||BIBRNM from e31dlib3.GBRANCH where BIBRTY='B' AND BIRS='A' 
    ]]> 
    </stmt> 
</query> 
<query cacheDuration="90000" cacheMaxRows="100" key="common.spotter.outletd" toCache="true"> 
    <stmt> 
    <![CDATA[ 
    SELECT BIBRCD, BIBRCD||'-'||BIBRNM from e31dlib3.GBRANCH where BIBRTY='D' AND BIRS='A' 
    ]]> 
    </stmt> 
</query> 

就是這樣，一切都完成了，它對我來說非常完美，如果不行足夠的細節讓我知道！