求救strust中怎么样才能完成联动两级菜单.

Question

jsp中,用strust标签,怎么样才能实现.大类选取,小类读取的效果.(把小类读取到表格里.)

Answer 1

可以用ajax完成！！！！！！！！！

Answer 2

Struts_menu    可以实现。

Answer 3

struts_menu怎么用?我用request返回来的code取得值,然后放到select里面.要做一个动作change select 的时候.列出一个表,表里列出大类对应的小类

Answer 4

                 <TR align="center">
                    <SCRIPT language = "JAVASCRIPT">
                      <%
                        try{
                          Vector vector2 = (Vector)session.getAttribute("vector2");
                          if(vector2!=null){
                          int i = 0;
                      %>
                          var arrData1=new Array();
                      <%
                          for(int k=0;k<vector2.size();k++){
                          ArticleBO articlebo = new ArticleBO();
                          articlebo = (ArticleBO)vector2.get(k);
                          System.out.println("一级菜单ID + " +articlebo.getMenu1Id());
                          System.out.println("一级菜单名称 + " +articlebo.getMenu1());
                      %>
                          arrData1[<%=i%>]=new Array("<%=articlebo.getMenu1()%>","<%=articlebo.getMenu2()%>");
                      <%
                          i++;
                          }
                      %>  
                                    function initSel1() {
                                            var optStr="";
                                            for(var i=0;i<arrData1.length;i++){
                                             if(optStr.search("("+arrData1[i][0]+")")<0){
                                             optStr+="("+arrData1[i][0]+")";
                                             var oOptA=document.createElement("OPTION");
                                             oOptA.value=arrData1[i][0];
                                             oOptA.innerHTML=arrData1[i][0];
                                             articleForm.menu1.appendChild(oOptA);         
                                             }
                                            }
                                            chgSlave1();
                                         }
                                         function chgSlave1()
                                     {
                                    articleForm.menu2.options.length=0;
                                    for(var i=0;i<arrData1.length;i++)
                                      {
                                  if(arrData1[i][0]==articleForm.menu1.value)
                                    {
                                 var oOptB=document.createElement("OPTION");
                                 oOptB.value=arrData1[i][1];
                                 oOptB.innerHTML=arrData1[i][1];
                                 articleForm.menu2.appendChild(oOptB);
                                    }
                                       }
                                      }                           
                    </SCRIPT>
                    <TD align = "center" colspan = 2><bean:message key="com.ccut.zs.submenu.menu1name"/>&nbsp;<select id="menu1" onchange="chgSlave1()" name="menu1"></select>
                                                     <bean:message key="com.ccut.zs.submenu.menu2name"/>&nbsp;<select id="menu2" name="menu2"></select></TD>                    
                 </TR>
                    <%
                           }else{
                               out.println("请先添加一级菜单!");
                           }
                         }catch(Exception e){
                            System.out.println("news_add.jsp " + e.getMessage());
                         }
                     %>这是我写的一个级连菜单,数据都是从后台数据库中提取出来的,我的这个项目也是strust