Struts的Map

xml配置：

<?xmlversion="1.0"encoding="UTF-8"?>

<!DOCTYPEstruts PUBLIC

          "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

          "http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>

          <packagename="map"namespace="/map"extends="struts-default">

          <!-- 返回视图 -->

                   <actionname="map"class="star.july.map.TypesAction"method="map">

                             <resultname="success">/list.jsp</result>

                   </action>

                   <actionname="aware"class="star.july.map.TypesAction2"method="map">

                             <resultname="success">/list.jsp</result>

                   </action>

          </package>

 

</struts>

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TypesAction：

package star.july.map;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class TypesAction extends ActionSupport{

    List list = new ArrayList();

    //往集合中添加元素

//    list.add("小年");

    public TypesAction(){

        list.add("赵甲第");

        list.add("蔡言芝");

        list.add("王半斤");

        list.add("齐冬草");

        list.add("袁树");

        list.add("李枝锦");

    }

    //获取域对象并赋值

    public String map(){

        ActionContext ac = ActionContext.getContext();

        Map request = (Map)ac.get("request");

        request.put("rlist", list);

        Map session = ac.getSession();

        session.put("slist", list);

        Map application = ac.getApplication();

        application.put("alist", list);

        return SUCCESS;

    }

}

——————————————————————————————————————

TypesAction2：

package star.july.map;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import org.apache.struts2.interceptor.ApplicationAware;

import org.apache.struts2.interceptor.RequestAware;

import org.apache.struts2.interceptor.SessionAware;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

/**

 * 通过接口注入struts2的Map集合

 * @author Starjuly

 *

 */

public class TypesAction2 extends ActionSupport

                        implements RequestAware,SessionAware,ApplicationAware{

    //创建一个集合

    List list = new ArrayList();

    //往集合中添加元素

//    list.add("小年");

    public TypesAction2(){

        list.add("赵甲第");

        list.add("蔡言芝");

        list.add("王半斤");

        list.add("齐冬草");

        list.add("袁树");

        list.add("李枝锦");

    }

    //定义成员变量存储参数值

    private Map rp;

    private Map sp;

    private Map ap;

    public void setApplication(Map<String, Object> application) {

        this.ap = application;

    }

    public void setSession(Map<String, Object> session) {

        this.sp = session;

    }

    public void setRequest(Map<String, Object> request) {

        this.rp = request;

    }

    public String map(){

        //将集合的值放入域对象中

        ap.put("rlist", list);

        sp.put("slist", list);

        ap.put("alist", list);

        return SUCCESS;

    }

}