<?xml version="1.0" encoding="UTF-8" ?>                                    <!DOCTYPE struts PUBLIC                                        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"                                    "http://struts.apache.org/dtds/struts-2.3.dtd"><struts>    <package name="p1" namespace="/" extends="struts-default">        <action name="m1Action" class="org.ah.s2.C1" method="m1">            <result name="success" type="dispatcher">                /inputMsg.jsp            </result>        </action>    </package></struts>

package org.ah.s2;public class Model {    private String uname;    private M2 m2;    public Model(String uname, M2 m2) {        this.uname = uname;        this.m2 = m2;    }    public M2 getM2() {        return m2;    }    public void setM2(M2 m2) {        this.m2 = m2;    }    public String getUname() {        return uname;    }    public void setUname(String uname) {        this.uname = uname;    }}

package org.ah.s2;public class M2 {    public M2(String name2) {        this.name2 = name2;    }    private String name2;    public String getName2() {        return name2;    }    public void setName2(String name2) {        this.name2 = name2;    }}

package org.ah.s2;import java.util.ArrayList;import java.util.List;import org.apache.struts2.ServletActionContext;import ognl.Ognl;import ognl.OgnlException;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;import com.opensymphony.xwork2.util.ValueStack;public class C1 extends ActionSupport {    private Model m;    private List<Model> lstM;    // ------------------------------------------------------------------    public Model getM() {        return m;    }    public void setM(Model m) {        this.m = m;    }    public List<Model> getLstM() {        return lstM;    }    public void setLstM(List<Model> lstM) {        this.lstM = lstM;    }    // ------------------------------------------------------------------    public String m1() {        ActionContext ac = ActionContext.getContext();        // 放入值栈外围        ac.put("msg", "out_value");        // 放入值栈        ValueStack valueStack = ac.getValueStack();        valueStack.set("msg", "vStack_value");// OK        // 放入Application        ac.getApplication().put("msg", "hello application");        // 放入session        ac.getSession().put("msg", "hello session");        // 放入request(上面的ActionContext ac搞不定，需要ServletActionContext)        ServletActionContext.getRequest().setAttribute("msg", "hello request");        // 放置对象        m = new Model("吕布", new M2("方天画戟"));        // 放置List        Model m1 = new Model("关羽", new M2("青龙偃月刀"));        Model m2 = new Model("张飞", new M2("丈八蛇矛枪"));        Model m3 = new Model("赵云", new M2("龙胆亮银枪"));        lstM = new ArrayList<Model>();        lstM.add(m1);        lstM.add(m2);        lstM.add(m3);        return "success";    }}

    <s:form action="m1Action" method="post">        <s:textfield name="msg" value="my input"></s:textfield>        <s:submit value="测试Struts控件传值"></s:submit>    </s:form>

    1.值栈中的值：    <s:property value="msg" />    <hr>    2.值栈外围值：    <s:property value="#msg" />    <br> 3.    <s:property value="#parameters.msg" />取表单提交值    <br> 4.    <s:property value="#application.msg" />    <br> 5.    <s:property value="#session.msg" />    <br> 6.    <s:property value="#request.msg" />    <br> 7.    <s:property value="#attr.msg" />    :按request > session > application顺序访问其属性    <br> 8.取对象    <s:property value="m.uname" />    <s:property value="m.m2.name2" />    <br> 9.取List    <!-- 用listValue指定显示的内容 -->    下拉列表：    <s:select list="lstM" listValue="uname" headerValue="缺省值">    </s:select>    <br> 下拉列表（自定义List）：    <s:select list="#{‘0‘:‘男‘,‘1‘:‘女‘}" label="性别" headerValue="请选择性别" />    <br>    <br> 循环遍历：    <br>    <s:iterator value="lstM" var="per" status="sta">        <s:property value="#per.uname" />        <s:property value="#per.m2.name2" />        <br>        循环的次数为：<s:property value="#sta.count" />        <br>        循环的索引为：<s:property value="#sta.index" />        <br>        是否为奇数：<s:property value="#sta.odd" />        <s:if test="#sta.count==1">No.1</s:if>        <s:elseif test="#sta.count==2">No.2</s:elseif>        <s:else>No.3</s:else>        <br />            </s:iterator>    <br>    遍历set集合：(自定义的字符串不能是字符！至少加一个空格)    <br>    <s:set name="set" value="{‘E ‘,‘ddddd‘,‘ccccc‘,‘bbbbb‘,‘aaaaa‘}"></s:set>    <s:iterator value="#set" var="o">        <!-- ${o }<br/> -->        <s:property value="o" />        <br />    </s:iterator>

    <s:debug></s:debug>