posts - 496,comments - 227,trackbacks - 0

Struts2中iterator标签遍历map总结

针对以下几种情况的Map:

  •     private Map<String,String> map;   
  •       
  •     private Map<String,Student> studentMap;   
  •        
  •     private Map<String,String[]> arrayMap;   
  •        
  •     private Map<String,List<Student>> listMap;

  •  


  •         map=new HashMap<String,String>();   
  •         map.put("1""one");   
  •         map.put("2""two");   
  • 用法:

  •    <s:iterator value="map" id="column">   
  •    <s:property value="#column"/><br>   
  •    key: <s:property value="key"/><br>   
  •    value:<s:property value="value"/><br>  
  •   </s:iterator>   
  •  


  •         studentMap=new HashMap<String,Student>();   
  •         studentMap.put("student1",new Student(new Long(1),"20034140201","张三1","男",25));   
  •         studentMap.put("student2",new Student(new Long(2),"20034140202","张三2","女",26));   
  •         studentMap.put("student3",new Student(new Long(3),"20034140202","张三3","男",27));    
  • 用法:

     

  •     <s:iterator value="studentMap" id="column">   
  •     <tr>   
  •      <td><s:property value="#column"/></td>   
  •      <td><s:property value="value.id"/></td>   
  •      <td><s:property value="value.num"/></td>   
  •      <td><s:property value="value.name"/></td>   
  •      <td><s:property value="value.sex"/></td>   
  •      <td><s:property value="value.age"/></td>   
  •     </tr>   
  •     </s:iterator> 
  •  


  •         arrayMap=new HashMap<String,String[]>();   
  •         arrayMap.put("arr1"new String[]{"1","2003401","leejie","male","20"});   
  •         arrayMap.put("arr2"new String[]{"2","2003402","huanglie","male","25"});   
  •         arrayMap.put("arr3"new String[]{"3","2003403","lixiaoning","male","21"});   
  •            
  • 用法

     

  •     <s:iterator value="arrayMap" id="column">   
  •     <tr>   
  •      <td><s:property value="#column"/></td>   
  •      <td><s:property value="value[0]"/></td>   
  •      <td><s:property value="value[1]"/></td>   
  •      <td><s:property value="value[2]"/></td>   
  •      <td><s:property value="value[3]"/></td>   
  •      <td><s:property value="value[4]"/></td>   
  •     </tr>   
  •     </s:iterator>  
  •  


  •            
  •         listMap=new HashMap<String,List<Student>>();   
  •            
  •         List<Student> list1=new ArrayList<Student>();   
  •         list1.add(new Student(new Long(1),"20034140201","张三1","男",25));   
  •         list1.add(new Student(new Long(2),"20034140202","张三2","男",25));   
  •         list1.add(new Student(new Long(3),"20034140203","张三3","男",25));   
  •         listMap.put("class1", list1);   
  •            
  •         List<Student> list2=new ArrayList<Student>();   
  •         list2.add(new Student(new Long(1),"20034140301","李四1","男",20));   
  •         list2.add(new Student(new Long(2),"20034140302","李四2","男",21));   
  •         list2.add(new Student(new Long(3),"20034140303","李四3","男",22));   
  •         list2.add(new Student(new Long(4),"20034140304","李四4","男",23));   
  •         listMap.put("class2", list2);   
  •  

    用法:

  •    <s:iterator value="listMap" id="column">   
  •      <s:set name="total" value="#column.value.size"/>   
  •      <s:iterator value="#column.value" status="s">   
  •       <tr>   
  •         <s:if test="#s.first"><td rowspan="${total}"><s:property value="#column.key"/></td></s:if>   
  •         <td><s:property value="id"/></td>   
  •         <td><s:property value="num"/></td>   
  •         <td><s:property value="name"/></td>   
  •         <td><s:property value="sex"/></td>   
  •         <td><s:property value="age"/></td>   
  •       </tr>   
  •      </s:iterator>   
  •   </s:iterator>  
  • posted on 2010-09-21 17:56 SIMONE 阅读(2569) 评论(0)  编辑  收藏 所属分类: JAVAstruts

    只有注册用户登录后才能发表评论。


    网站导航: