struts-10-主要标签

来源：互联网发布：大数据的价值体现在编辑：程序博客网时间：2024/06/07 12:44

迭代标签

制造数据

package com.cx.ognl;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/** * Created by cxspace on 16-7-14. */public class OnglDemo3 extends ActionSupport{    @Override    public String execute() throws Exception {        List<User> list = new ArrayList<User>();        Map<Integer,User> map = new HashMap<Integer , User>();        for (int i = 1 ; i< 11 ; i++){            User user = new User(i+"","CX"+i);            list.add(user);            map.put(Integer.parseInt(user.getId()),user);        }        //保存到request对象，取值要加#        ActionContext.getContext().getContextMap().put("list",list);        //放到root        ActionContext.getContext().getValueStack().push(list);        ActionContext.getContext().getValueStack().set("list",list);        return super.execute();    }}

list迭代案例一

<%--  Created by IntelliJ IDEA.  User: cxspace  Date: 16-7-14  Time: 上午11:53  To change this template use File | Settings | File Templates.--%><%@ page contentType="text/html;charset=UTF-8" language="java" %><%@taglib prefix="s" uri="/struts-tags" %><html><head>    <title>ognl</title></head><body>  <s:iterator var="user" value="#request.list" status="st">      <s:property value="#user.id"></s:property>      <s:property value="#user.name"></s:property>      <s:property value="#st.even"></s:property> <br>  </s:iterator></body></html>

list迭代案例二

<%--  Created by IntelliJ IDEA.  User: cxspace  Date: 16-7-14  Time: 上午11:53  To change this template use File | Settings | File Templates.--%><%@ page contentType="text/html;charset=UTF-8" language="java" %><%@taglib prefix="s" uri="/struts-tags" %><html><head>    <title>ognl</title>    <style type="text/css">        .odd{            background-color: blue;        }        .even{            background-color: crimson;        }    </style></head><body><br/>list迭代<br/><table border="1">  <tr>      <td>用户id</td>      <td>用户名</td>  </tr>    <!--迭代数据-->  <s:iterator var="user" value="#request.list" status="st">      <!--是偶数，显示even样式，否则odd样式-->   <tr class=<s:property value="#st.even?'even':'odd'"/> >       <td><s:property value="#user.id"></s:property></td>      <td><s:property value="#user.name"></s:property></td>   </tr>  </s:iterator></table></body></html>

map迭代

二.迭代map<br/><table border="1">    <tr>        <td>用户id</td>        <td>用户名</td>    </tr>    <!--迭代数据-->    <s:iterator var="mp" value="#request.map" status="st">        <!--是偶数，显示even样式，否则odd样式-->        <tr class=<s:property value="#st.even?'even':'odd'"/> >            <td><s:property value="#mp.key"></s:property></td>            <td><s:property value="#mp.value.name"></s:property></td>        </tr>    </s:iterator></table>

动态构建集合

<body>   <br>一、动态构建list集合<br>   <s:iterator var="str" value="{'a','b'}">       <s:property value="#str"></s:property>   </s:iterator>   <br>二、动态构建map集合<br>   <s:iterator var="mpa" value="#{'cn':'China','usa':'America'}">       <s:property value="#mpa.key"></s:property>       <s:property value="#mpa.value"></s:property>   </s:iterator></body>

<s:form>标签

   <s:form action="/user_login" method="post" name="frmlogin">       //服务器标签action不要写全路径   </s:form>

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