struts2中<s:merge>标签的使用

合并遍历集合出来的值,与<s:append>标签用法相似

 

MergeAction.java

 

@Override
 public String execute() throws Exception {
  HttpServletRequest request = ServletActionContext.getRequest();
  List list1 = new ArrayList();
  list1.add("11");
  list1.add("22");
  List list2 = new ArrayList();
  list2.add("aa");
  list2.add("bb");
  List list3 = new ArrayList();
  list3.add("AA");
  list3.add("BB");
  XmxxBean xmxxBean = new XmxxBean(11 , "XMBH001" , "ERP");
  List list4 = new ArrayList();
  list4.add(xmxxBean);
  request.setAttribute("list1", list1);
  request.setAttribute("list2", list2);
  request.setAttribute("list3", list3);
  request.setAttribute("list4", list4);
  return "mergeTag";
 }

 

struts.xml

 

<action name="mergeTag" class="com.butone.struts2.taguser.MergeTagAction">
    <result name="mergeTag">/taguser/mergeTag.jsp</result>
   </action>

 

mergeTag.jsp

 

 

s:form action="" theme="simple">
   <s:merge id="list">
    <s:param value="#request.list1"/>
    <s:param value="#request.list2"/>
    <s:param value="#request.list3"/>
    <s:param value="#request.list4"/>
   </s:merge>
   <s:iterator value="%{list}">
    <s:property/><br>
   </s:iterator>
   <s:iterator value="#request.list4">
    <s:property value="XMXXID"/>
    <s:property value="XMMC"/>
   </s:iterator>
  </s:form>