cms-幻灯片的实现

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2024-09-07 15:31:57 223人阅读

1.其实幻灯片的后台代码和之前的最新动态和推荐是一样的，只是前台遍历的时候不一样罢了

2.代码：

2.1：帖子mapper查询出幻灯片图片：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.open1111.dao.ArticleDao">

<resultMap type="Article" id="ArticleResult">
<result property="id" column="id"/>
<result property="title" column="title"/>
<result property="publishDate" column="publishDate"/>
<result property="content" column="content"/>
<result property="summary" column="summary"/>
<result property="titleColor" column="titleColor"/>
<result property="click" column="click"/>
<result property="isRecommend" column="isRecommend"/>
<result property="isSlide" column="isSlide"/>
<result property="keyWords" column="keyWords"/>

<association property="arcType" column="typeId" select="com.open1111.dao.ArcTypeDao.findById"></association>
</resultMap>

<select id="getNewest" resultMap="ArticleResult">
select * from t_article order by publishDate desc limit 0,7
</select>

<select id="getRecommend" resultMap="ArticleResult">
select * from t_article where isRecommend=1 order by publishDate desc limit 0,7
</select>

<select id="getSlide" resultMap="ArticleResult">
select * from t_article where isSlide=1 order by publishDate desc limit 0,5
</select>

</mapper>

2.2：修改mapper同时修改到接口：

package com.open1111.dao;

import java.util.List;

import com.open1111.entity.Article;

/**
* 帖子Dao接口
* @author user
*
*/
public interface ArticleDao {

/**
* 获取最新的7条帖子
* @return
*/
public List<Article> getNewest();

/**
* 获取最新7条推荐的帖子
* @return
*/
public List<Article> getRecommend();

/**
* 获取最新5条幻灯的帖子
* @return
*/
public List<Article> getSlide();
}

2.3.帖子service添加查询幻灯片的方法：

package com.open1111.service;

import java.util.List;

import com.open1111.entity.Article;

/**
* 帖子Service接口
* @author user
*
*/
public interface ArticleService {

2.4帖子serviceImpl中添加查询幻灯片的方法：

package com.open1111.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import com.open1111.dao.ArticleDao;
import com.open1111.entity.Article;
import com.open1111.service.ArticleService;

/**
* 帖子Service实现类
* @author user
*
*/
@Service("articleService")
public class ArticleServiceImpl implements ArticleService{

@Resource
private ArticleDao articleDao;

public List<Article> getNewest() {
return articleDao.getNewest();
}

public List<Article> getRecommend() {
return articleDao.getRecommend();
}

public List<Article> getSlide() {
return articleDao.getSlide();
}

}

2.5：在静态化组件serviceImpl中把幻灯片数据存入application中

package com.open1111.service.impl;

import java.util.List;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

import com.open1111.entity.ArcType;
import com.open1111.entity.Article;
import com.open1111.entity.Link;
import com.open1111.service.ArcTypeService;
import com.open1111.service.ArticleService;
import com.open1111.service.LinkService;

/**
* 初始化组件
* @author user
*
*/
@Component("initComponet")
public class InitComponet implements ApplicationContextAware,ServletContextListener{

private static ApplicationContext applicationContext;

public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
// TODO Auto-generated method stub
this.applicationContext=applicationContext;
System.out.println(this);
}

/**
* 刷新application缓存方法
* @param application
*/
public void refreshSystem(ServletContext application){
LinkService linkService=(LinkService) applicationContext.getBean("linkService");
List<Link> linkList=linkService.list(null);
application.setAttribute("linkList", linkList);

ArcTypeService arcTypeService=(ArcTypeService) applicationContext.getBean("arcTypeService");
List<ArcType> arcTypeList=arcTypeService.list(null);
application.setAttribute("arcTypeList", arcTypeList);

ArticleService articleService=(ArticleService) applicationContext.getBean("articleService");
List<Article> newestArticleList=articleService.getNewest(); // 获取最新7条帖子
application.setAttribute("newestArticleList", newestArticleList);

List<Article> recommendArticleList=articleService.getRecommend();
application.setAttribute("recommendArticleList", recommendArticleList);

List<Article> slideArticleList=articleService.getSlide();
application.setAttribute("slideArticleList", slideArticleList);

}

public void contextInitialized(ServletContextEvent sce) {
// TODO Auto-generated method stub
ServletContext application=sce.getServletContext();
refreshSystem(application);
}

public void contextDestroyed(ServletContextEvent sce) {
// TODO Auto-generated method stub

}

}

2.6:在页面显示幻灯片效果：

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Open1111官方网站 -南通小锋网络科技有限公司</title>
<META NAME="Author" CONTENT="Java1234_小锋老师">
<meta name="keywords"
content="Java内容管理系统,JavaCMS,Java开源,Java爬虫,JavaSEO,Java CMS" />
<meta name="description"
content="Open1111专注于研发Java建站,Java爬虫,JavaSEO教程.传授广大学员用Java技术来实现互联网资源的搬运,整合汇聚互联网资源建站,顺便获取一些搬运费补贴家用." />
<link rel="stylesheet"
href="http://www.mamicode.com/${pageContext.request.contextPath}/static/css/open1111.css">
<script src="http://www.mamicode.com/${pageContext.request.contextPath}/static/js/jQuery.js"></script>
</head>
<body>
<jsp:include page="/common/head.jsp"></jsp:include>
<jsp:include page="/common/menu.jsp"></jsp:include>

<div class="left">
<DIV style="width: 330px; height: 228px;" class="tuhuo">
<A href="" target="_blank"><IMG style="width: 330px; height: 208px;" id="fou_img" src=""></A>

<c:forEach var="article" items="${slideArticleList }">
<A href="http://www.mamicode.com/${pageContext.request.contextPath}/article/${article.id}.html">
<IMG style="display: none;" class="tu_img"
src="http://www.mamicode.com/${pageContext.request.contextPath}/static/userImages/${article.slideImage}"
width="330" height="208" />
</A>
</c:forEach>

<c:forEach var="article" items="${slideArticleList }">
<P style="height: 20px;" class="tc">
<A href="http://www.mamicode.com/${pageContext.request.contextPath}/article/${article.id}.html" target="_blank" title="${article.title }">${fn:substring(article.title,0,18) }</A>
</P>
</c:forEach>

<UL>
<LI class="fouce">1</LI>
<LI>2</LI>
<LI>3</LI>
<LI>4</LI>
<LI>5</LI>
</UL>
</DIV>

</div>

<div class="data_list">
<div class="dataHeader">最近更新</div>
<div class="datas">
<ul>
<c:forEach var="article" items="${newestArticleList }">
<li><a target="_blank" href="http://www.mamicode.com/${pageContext.request.contextPath}/article/${article.id}.html"
title="${article.title }">[<fmt:formatDate value="http://www.mamicode.com/${article.publishDate }" pattern="MM-dd"/>]  <font
color="${article.titleColor }">${fn:substring(article.title,0,20) }</font></a></li>
</c:forEach>
</ul>
</div>
</div>

</div>

<div class="right">
<div class="data_list">
<div class="dataHeader">站长推荐</div>
<div class="datas">
<ul>
<c:forEach var="article" items="${recommendArticleList }">
<li><a target="_blank" href="http://www.mamicode.com/${pageContext.request.contextPath}/article/${article.id}.html"
title="${article.title }"><font color="${article.titleColor }">${fn:substring(article.title,0,16) }</font></a></li>
</c:forEach>

</ul>
</div>
</div>

</div>

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<jsp:include page="/common/link.jsp"></jsp:include>

<jsp:include page="/common/foot.jsp"></jsp:include>
</body>
<script type="text/javascript">
var auto;
var index = 0;
$(‘.tuhuo ul li‘).hover(function() {
clearTimeout(auto);
index = $(this).index();
move(index);
}, function() {
auto = setTimeout(‘autogo(‘ + index + ‘)‘, 3000);
});

</html>

cms-幻灯片的实现

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cms-幻灯片的实现

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