Struts2 控制标签(七)输出隔行不同颜色效果

最新推荐文章于 2020-11-07 20:49:24 发布

最新推荐文章于 2020-11-07 20:49:24 发布 · 168 阅读

文章标签：

#BBS #Struts #Java #Bean #JSP

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本文介绍如何使用Struts2框架结合JavaBean显示列表，并通过status属性实现隔行换色效果。具体步骤包括创建JavaBean、Action类、JSP页面及配置struts.xml。

1.创建JavaBean

package com.wl.control.Bean;

public class BBS {

    private String title;

    private String author;

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }
}

2.创建Action

package com.wl.control.tagsAction;

import java.util.ArrayList;
import java.util.List;

import com.opensymphony.xwork2.ActionSupport;
import com.wl.control.Bean.BBS;

public class ShowListColor extends ActionSupport {

    private List listBBS=new ArrayList();

    public List getListBBS() {
        return listBBS;
    }

    public void setListBBS(List listBBS) {
        this.listBBS = listBBS;
    }

    @Override
    public String execute() throws Exception {

        BBS bbs1=new BBS();
        bbs1.setAuthor("张三");
        bbs1.setTitle("我是张三");

        BBS bbs2=new BBS();
        bbs2.setAuthor("李四");
        bbs2.setTitle("我是李四");

        BBS bbs3=new BBS();
        bbs3.setAuthor("王五");
        bbs3.setTitle("我是王五");

        BBS bbs4=new BBS();
        bbs4.setAuthor("赵六");
        bbs4.setTitle("我是赵六");

        BBS bbs5=new BBS();
        bbs5.setAuthor("李七");
        bbs5.setTitle("我是李七");

        BBS bbs6=new BBS();
        bbs6.setAuthor("孙八");
        bbs6.setTitle("我是孙八");

        listBBS.add(bbs1);
        listBBS.add(bbs2);
        listBBS.add(bbs3);
        listBBS.add(bbs4);
        listBBS.add(bbs5);
        listBBS.add(bbs6);
        return "showlistcolor";
    }

}

3.创建JSP文件

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@ taglib uri="/struts-tags" prefix="s" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>

  <body>
    <table width="589" height="52" cellpadding="0" cellspacing="0" border="0">
        <tr>
           <td bgcolor="#0000CC">序号</td>
           <td bgcolor="#0000CC">标题</td>
           <td bgcolor="#0000CC">作者</td>
        </tr>
        <s:iterator value="listBBS" var="BBSJavaBean" status="status">
            <s:if test="#status.odd">
               <tr>
               <td><s:property value="#status.count" /></td>
               <td><s:property value="#BBSJavaBean.title" /></td>
               <td><s:property value="#BBSJavaBean.author" /></td>
               </tr>
            </s:if>
            <s:else>
               <tr>
               <td bgcolor="#999999"><s:property value="#status.count" /></td>
               <td bgcolor="#999999"><s:property value="#BBSJavaBean.title" /></td>
               <td bgcolor="#999999"><s:property value="#BBSJavaBean.author" /></td>
               </tr>
            </s:else>
        </s:iterator>
    </table>
  </body>
</html>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC 
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
   <package name="Struts2.1" extends="struts-default">
       <action name="showlistcolor" class="com.wl.control.tagsAction.ShowListColor">
           <result name="showlistcolor">/controlTags/showlistcolor.jsp</result>
       </action>
   </package>
</struts>

5.运行结果：

[img]http://dl.iteye.com/upload/attachment/380433/bb627e52-180e-3b20-a6a6-c93da47f0eec.png[/img]