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JSP:
¿Î³ÌÃû³Æ:
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/options.js"></script>
 <html:select property="icourseId" onchange="change(this)" style="width:180px;">
      <html:option value="0">----ÇëÑ¡ÔñÒÔÏ¿γÌ----</html:option>
      <html:options collection="clist" labelProperty="ccourseName"                    property="icourseId"></html:options>
</html:select>
¿Î³ÌÕ½Ú:
 <select name="ichapterId" id="result" style="width:180px;">
 <option value="">----ÇëÑ¡ÔñÒÔÏÂÕ½Ú----</option>
</select>
******************************************************************************
options.js:
function change(option){
 var opvalue = option.value;
 //ÉèÖÃÓë·þÎñ¶Ë½øÐн»»¥µÄURL(°üÀ¨ÖÐÎÄ´¦Àí)
 var url = "options.do?opvalue="+encodeURI(encodeURI(opvalue));
 url = covertURL(url);
 //Óë·þÎñ¶Ë½øÐн»»¥,²¢ÏÔʾÊý¾Ý
 $.get(url,null,function(data){$("#result").html(data);});
}
//´¦Àí»º´æÎÊÌâ
function covertURL(url){
   var timeURL = (new Date()).valueOf();
   if(url.indexOf("?") >= 0){
       url = url + "&t=" + timeURL;
   }else{
       url = url + "?t=" + timeURL;
   }
   return url;
  }
***************************************************************************
ACTION:
public class OptionsAction extends Action {
 private WebService webservice;
 
 public void setWebservice(WebService webservice) {
  this.webservice = webservice;
 }
 
 public ActionForward execute(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response


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