struts2知识汇总

Posted 2020-09-29

标签遍历Map<key,List<Object>>

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); 

 <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>  

struts2配置文件，重定向action并传真

<action name="updateCampaign" class="campaignAction" method="updateCampaign">  
    <result name="success" type="redirectAction">  
        <param name="actionName">viewCampaignDetail</param>  
        <param name="campaignId">${campaignId}</param>  
    </result>  
</action>  

struts接收数组

publicclass A {

    private String param[];

    public String[] getParam() {

       returnparam;

    }

    publicvoid setParam(String[] param) {

       this.param = param;

    }

    publicvoid execute(){

       for(int i=0;i<this.param.length;i++){

           System.out.println(this.param[i]);

       }

    }

}

参考链接

http://blog.csdn.net/hakunamatata2008/article/details/5295500

http://blog.csdn.net/shen516/article/details/10111677