基于jsp实现新闻管理系统 附完整源码

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基于jsp实现新闻管理系统 附完整源码

作者:suwu150 字体:[增加 减小] 类型:转载 时间:2016-09-08 我要评论 这篇文章主要介绍了基于jsp的新闻管理系统,具有一定的参考价值,感兴趣的小伙伴们可以参考一下 ">

很棒的新闻发布系统分享给大家,希望大家喜欢。

答辩要先运行好程序讲解给老师听,你的写作方法,步骤,你实现的功能,大概就是这些,还有个你做这个的意义

下面就让我们来说一说基于jsp的新闻发布系统,其中使用的技术有JavaBean、fillter、数据库等,能够实现新闻的发布功能,在发布之后能够进行对每一条新闻的删除、修改、或者继续增加新的文章,最后还能够进行查询功能,其中引用了百度编辑器,能够进行图文并茂的编辑,极大地方便用户的使用。

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:完整项目下载地址:新闻发布系统

给你一个SSH简单框架要不要,然后,你自己完善,项目需求都是变的,不可能跟你想象的一样

一、效果演示

乱码在java里很常见,就是各个地方的编码不一样引起的

首先让我们来看一看实现的效果:

如要代码,请看我的昵称 车辆管理系统主要实现系统管理、用户管理、公告管理、驾驶员管理、车辆管理、车辆违章管理、车辆维修管理、留言管理等功能,充分利用计算机网络技术,改变传统的操作方式

下面是登陆的首界面:

图1 首界面

管理员登录页面:

图2 管理员登录界面

下面是管理员登陆之后的界面,可以进行添加新闻、删除新闻、查询新闻:

图3 管理员管理界面

下面是添加新闻界面,能够进行新闻的添加:

图4 添加新闻界面

下面是所添加的新闻:

图5 添加后的新闻

下面是修改新闻界面:

图6 修改新闻界面下面是修改后的界面

图7 修改后的界面

下面是删除新闻后的界面:

图8 删除新闻后的界面

对于新闻的查找,与其他类似,在这里我们使用的是利用新闻编号进行查询所需的信息,然后在新的页面上进行显示。

二、具体实现过程 

1、环境:编程环境为NetBeans8.0和Oracle数据库 

2、数据库后台的设计   

在新闻管理系统中,我们需要数据库后台管理,其具体步骤如下所示:

根据所需的业务进行建表,可参见如下所示:建立数据库

3、编写步骤:

(1)首先建立以个项目,在此命名为Demo_08_NewsRealese,项目布局结构如下图所示,根据如下布局对项目进行布局设计,方便后面的编程,项目中web-inf为项目配置文件夹,images文件夹用于储存项目中使用的图片文件,ueditor为百度富文本编辑器文件夹,源包文件夹为Java类文件夹:

图9 项目布局结构图

接着,我们进行创建数据库连接层,即DAO和VO,分别存于包com.lut.beans和dao,类命名分别命名为NewsRealese、NewsRealeseDao,对于类NewsRealese而言,主要是实现字符串的包装,其内容与数据库里边的内容一一对应,其代码分别如下所示: 

package com.lut.beans;public class NewsRealese { private String newsId;private String classId;private String kindId;private String myOther;private String headTitle;private String content;private String connectRealtive;private String author;private String editor;private String newsFrom;private String top;private String newsTime;private String hits;private String state;private String tag; public String getNewsId() { return newsId; } public void setNewsId(String newsId) { this.newsId = newsId; } public String getClassId() { return classId; } public void setClassId(String classId) { this.classId = classId; } public String getKindId() { return kindId; } public void setKindId(String kindId) { this.kindId = kindId; } public String getMyOther() { return myOther; } public void setMyOther(String myOther) { this.myOther = myOther; } public String getHeadTitle() { return headTitle; } public void setHeadTitle(String headTitle) { this.headTitle = headTitle; } public String getContent() { return content; } public void setContent(String content) { this.content = content; } public String getConnectRealtive() { return connectRealtive; } public void setConnectRealtive(String connectRealtive) { this.connectRealtive = connectRealtive; } public String getAuthor() { return author; } public void setAuthor(String author) { this.author = author; } public String getEditor() { return editor; } public void setEditor(String editor) { this.editor = editor; } public String getNewsFrom() { return newsFrom; } public void setNewsFrom(String newsFrom) { this.newsFrom = newsFrom; } public String getTop() { return top; } public void setTop(String top) { this.top = top; } public String getNewsTime() { return newsTime; } public void setNewsTime(String newsTime) { this.newsTime = newsTime; } public String getHits() { return hits; } public void setHits(String hits) { this.hits = hits; } public String getState() { return state; } public void setState(String state) { this.state = state; } public String getTag() { return tag; } public void setTag(String tag) { this.tag = tag; } }

下面是类DAO类,命名为NewsRealeseDao.java,对于DAO类,主要用于实现数据库的连接问题,进行数据库的链接,在连接过程中需要用到各种有关数据库的技术,在这里我们使用的是Oracle数据库,其获取链接的方式为如下代码,其中第一行为驱动程序名,第二行为数据库地址(orcl为Oracle数据库中的SID,在安装Oracle数据库时需要记住),第三行为具体的连接,及使用URL找到数据库位置,然后使用密码wjk139登录到Scott账户 

//获取连接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");

其他的操作分别为增删改查的具体代码,分别对应Servlet中或jsp中需要实例化的代码,下面就是具体的DAO类代码:

package dao;import com.lut.beans.NewsRealese;import static java.lang.System.out;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.ArrayList;public class NewsRealeseDao { public ArrayList queryAllNews() throws Exception { Connection conn = null; ArrayList newsRealese = new ArrayList(); try { //获取连接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139"); //运行SQL语句 String sql = "select * from newmessage";//获取 Statement stat = conn.createStatement(); ResultSet rs = stat.executeQuery(sql); while (rs.next()) { //实例化VO NewsRealese news = new NewsRealese(); news.setNewsId(rs.getString("newsid")); news.setClassId(rs.getString("CLASSID")); news.setKindId(rs.getString("KINDID")); news.setMyOther(rs.getString("MYOTHER")); news.setHeadTitle(rs.getString("HEADTITLE")); news.setContent(rs.getString("CONTENT")); news.setConnectRealtive(rs.getString("CONNECTREALTIVE")); news.setAuthor(rs.getString("AUTHOR")); news.setEditor(rs.getString("EDITOR")); news.setNewsFrom(rs.getString("NEWSFROM")); news.setTop(rs.getString("TOP")); news.setNewsTime(rs.getString("NEWSTIME")); news.setHits(rs.getString("HITS")); news.setState(rs.getString("STATE")); news.setTag(rs.getString("TAG")); newsRealese.add(news); } rs.close(); stat.close(); } catch (Exception e1) { e1.printStackTrace(); } finally { try {//关闭连接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } return newsRealese; } } //查询一个消息 public ArrayList queryOneNews(int newsid) throws Exception { Connection conn = null; ArrayList newsRealese = new ArrayList(); int temp_id = newsid; try { //获取连接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //运行SQL语句 Statement stat = conn.createStatement(); String sql = "select * from newmessage where newsid=?";//获取newsid,使用?代替字符串,以免会发生错误 PreparedStatement ps = conn.prepareStatement(sql); ps.setInt(1, Integer.valueOf(newsid)); ResultSet rs = ps.executeQuery();// 之前已经给了sql字符串,所以executeUpdate是无参的。 while (rs.next()) { //实例化VO NewsRealese news = new NewsRealese(); news.setNewsId(rs.getString("newsid")); news.setClassId(rs.getString("CLASSID")); news.setKindId(rs.getString("KINDID")); news.setMyOther(rs.getString("MYOTHER")); news.setHeadTitle(rs.getString("HEADTITLE")); news.setContent(rs.getString("CONTENT")); news.setConnectRealtive(rs.getString("CONNECTREALTIVE")); news.setAuthor(rs.getString("AUTHOR")); news.setEditor(rs.getString("EDITOR")); news.setNewsFrom(rs.getString("NEWSFROM")); news.setTop(rs.getString("TOP")); news.setNewsTime(rs.getString("NEWSTIME")); news.setHits(rs.getString("HITS")); news.setState(rs.getString("STATE")); news.setTag(rs.getString("TAG")); newsRealese.add(news); } rs.close(); stat.close(); } catch (Exception e1) { e1.printStackTrace(); } finally { try {//关闭连接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } return newsRealese; } } //删除数据 public String deleteOneNews(int newsid) throws Exception { Connection conn = null; ArrayList newsRealese = new ArrayList(); int temp_id = newsid; try { //获取连接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //运行SQL语句 Statement stat = conn.createStatement(); String sql = "DELETE FROM newmessage WHERE newsid =?";//获取newsid,使用?代替字符串,以免会发生错误 PreparedStatement ps = conn.prepareStatement(sql); ps.setInt(1, Integer.valueOf(newsid)); ResultSet rs = ps.executeQuery();// 之前已经给了sql字符串,所以executeUpdate是无参的。 rs.close(); stat.close(); } catch (Exception e1) { e1.printStackTrace(); } finally { try {//关闭连接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } return newsRealese.toString(); } } //插入数据 public String insertOneNews(ArrayList addnews_list) throws Exception { Connection conn = null; /* for(int i=0,j=1;i<addnews_list.size();i++,j++) { System.out.println("j:"+j+"值:"+addnews_list.get(i).toString()); }*/ try { //获取连接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //运行SQL语句 Statement stat = conn.createStatement(); String sql = "insert into newmessage(newsId,classId,kindId,myOther,headTitle,content,connectRealtive,author,editor,newsFrom" + ",top,newsTime,hits,state,tag) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";//获取newsid,使用?代替字符串,以免会发生错误 PreparedStatement ps = conn.prepareStatement(sql); ps.setInt(1, Integer.valueOf(addnews_list.get(0).toString())); ps.setInt(2, Integer.valueOf(addnews_list.get(1).toString())); ps.setInt(3, Integer.valueOf(addnews_list.get(2).toString())); ps.setInt(4, Integer.valueOf(addnews_list.get(3).toString())); ps.setString(5, addnews_list.get(4).toString()); ps.setString(6, addnews_list.get(5).toString()); ps.setString(7, addnews_list.get(6).toString()); ps.setString(8, addnews_list.get(7).toString()); ps.setString(9, addnews_list.get(8).toString()); ps.setString(10, addnews_list.get(9).toString()); ps.setInt(11, Integer.valueOf(addnews_list.get(10).toString())); ps.setString(12, addnews_list.get(11).toString()); ps.setString(13, addnews_list.get(12).toString()); ps.setString(14, addnews_list.get(13).toString()); ps.setString(15, addnews_list.get(14).toString()); for (int i = 0, j = 1; i < addnews_list.size(); i++, j++) { System.out.println("j:" + j + "值:" + addnews_list.get(i).toString()); } int i = ps.executeUpdate(); conn.commit(); System.out.println("成功添加" + i + "行"); stat.close(); conn.close(); return i + "conn:" + conn; } catch (Exception e1) { e1.printStackTrace(); } finally { try {//关闭连接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } } return conn.toString(); } //更新数据 public String updateOneNews(ArrayList addnews_list) throws Exception { Connection conn = null; /* for(int i=0,j=1;i<addnews_list.size();i++,j++) { System.out.println("j:"+j+"值:"+addnews_list.get(i).toString()); }*/ try { //获取连接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //运行SQL语句 Statement stat = conn.createStatement(); //获取newsid,使用?代替字符串,以免会发生错误 String sql = "UPDATE newmessage set classId=?,kindId=?,myOther=?,headTitle=?,content=?," + "connectRealtive=?,author=?,editor=?,newsFrom=?,top=?,newsTime=?,hits=?,state=?,tag=? where newsid=?"; PreparedStatement ps = conn.prepareStatement(sql); ps.setInt(1, Integer.valueOf(addnews_list.get(1).toString())); ps.setInt(2, Integer.valueOf(addnews_list.get(2).toString())); ps.setInt(3, Integer.valueOf(addnews_list.get(3).toString())); ps.setString(4, addnews_list.get(4).toString()); ps.setString(5, addnews_list.get(5).toString()); ps.setString(6, addnews_list.get(6).toString()); ps.setString(7, addnews_list.get(7).toString()); ps.setString(8, addnews_list.get(8).toString()); ps.setString(9, addnews_list.get(9).toString()); ps.setInt(10, Integer.valueOf(addnews_list.get(10).toString())); ps.setString(11, addnews_list.get(11).toString()); ps.setString(12, addnews_list.get(12).toString()); ps.setString(13, addnews_list.get(13).toString()); ps.setString(14, addnews_list.get(14).toString()); ps.setInt(15, Integer.valueOf(addnews_list.get(0).toString())); for (int i = 0, j = 1; i < addnews_list.size(); i++, j++) { System.out.println("j:" + j + "值:" + addnews_list.get(i).toString()); } int i = ps.executeUpdate(); conn.commit(); System.out.println("成功更新" + i + "行"); stat.close(); conn.close(); return i + "conn:" + conn; } catch (Exception e1) { e1.printStackTrace(); } finally { try {//关闭连接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } } return conn.toString(); } public String ischecked(String user, String pass) throws Exception { Connection conn = null; //获取连接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; try { conn = DriverManager.getConnection(url,user, pass);//不安全 //建立连接 return conn.toString(); } catch (SQLException e) { e.printStackTrace(); } finally { if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } return null; } }

(2)首页展示页面的编写,命名为index.html,由于可能有网络的延迟,我们使用渐进的方式跳转(渐进方式跳转:window.location.href="newRealese_brief.jsp",从index.html页面跳转到ewRealese_brief.jsp页面),代码如下所示: 

<!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <link type="text/css" rel="stylesheet" href="newsRealese.css"/> <title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最富得浪漫的殿堂</title> </head> <body id="body"> 正在跳转...,请等待... <script language="javascript" type="text/javascript"> window.location.href="newRealese_brief.jsp"; </script> </body></html>

在缓冲时,会进行跳转,跳转后的页面为newRealese_brief.jsp,其代码如下所示:进入新闻展示页面之后,我们能够对新闻进行搜素,还能够查看详细内容。 

<%@page contentType="text/html" import="java.util.*,java.sql.*,com.lut.beans.NewsRealese,dao.NewsRealeseDao" pageEncoding="UTF-8" language="java"%><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最富得浪漫的殿堂</title> <link type="text/css" rel="stylesheet" href="newsRealese.css"/> </head> <body id="body"> <a href="adminLogin.jsp" style="table-layout: right">管理员登录</a><h1 id="p">最新资讯</h1><br> <%@include file="a_queryNews.jsp" %> <table border="0" style="width:100%; height:100%" align="center"> <tr> <td style="width: 10%"> </td> <td> <% NewsRealeseDao newsRealeseDao = new NewsRealeseDao(); ArrayList newsRealese = newsRealeseDao.queryAllNews(); %> <% for (int i = 0; i < newsRealese.size(); i++) { NewsRealese newRealese = (NewsRealese) newsRealese.get(i); %> <center><table border="0" width="100%" id="table"> <tr> <td width="128"><p>此处假设无图片</p> <p>此处假设无等级信息</p> </td> <td ><table border="0" width="100%"> <tr> <td width="11%" >原创或转载:</td> <td colspan="3"><%=newRealese.getMyOther()%> </td> <td width="10%" >新闻标题:</td> <td width="44%" ><%=newRealese.getHeadTitle()%> </td> </tr> <tr> <td colspan="6">新闻内容:</td> </table> <table width="100%" border="0"> <tr> <td> <a target="_blank" href="newRealese_detail.jsp?newsid=<%=newRealese.getNewsId()%>"/> <table width="100%" border="0" align="center"> <tr> <td> <%=newRealese.getContent()%> </td> </tr> </table> </td> </tr> </table> <table border="0" width="100%"> <tr> <td width="51" height="30">作者:</td> <td width="203"><%=newRealese.getAuthor()%> </td> <td width="97">新闻发布时间:</td> <td width="167"><%=newRealese.getNewsTime()%> </td> <td width="99">新闻点击次数:</td> <td width="191"><%=newRealese.getHits()%> </td> </tr> </table></td> </tr> <tr> <td height="21" colspan="2"><hr></td> </tr> </table></center> <% } %> </td> <td> </td> </tr> <tr> <td> </td> <td> </td> <td> </td> </tr></table></body></html>

(3)详细新闻页面的设计,命名为newRealese_detail.jsp其代码如下所示:再详细新闻页面上,我们能够进行数据的详细情况的了解,在观看完详细信息之后,我们能够进行点击返回按钮进行返回操作 

<%@page contentType="text/html" import="java.util.*,java.sql.*" pageEncoding="UTF-8" language="java"%><%@page import="com.lut.beans.NewsRealese" %><%@page import="dao.NewsRealeseDao" %><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><link type="text/css" rel="stylesheet" href="newsRealese.css"/> <title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最值得浪漫的殿堂</title> </head> <body id="body"> <h1>最新资讯</h1><br> <% String newsid=request.getParameter("newsid"); int newsid_int=Integer.parseInt(newsid); NewsRealeseDao newsRealeseDao=new NewsRealeseDao(); ArrayList newsRealese=newsRealeseDao.queryOneNews(newsid_int); %> <table border="1"> <tr > <td >新闻编号</td> <td>所属新闻栏目编号</td> <td>所属新闻分类编号</td> <td>原创或转载</td> <td>新闻标题</td> <td>新闻内容</td> <td>相关文章</td> <td>作者</td> <td>编辑</td> <td>出处</td> <td>是否置顶</td> <td>新闻发布时间</td> <td>新闻点击次数</td> <td>新闻状态</td> <td>新闻标记</td> </tr> <% for(int i=0;i<newsRealese.size();i++) { NewsRealese newRealese=(NewsRealese)newsRealese.get(i); %> <tr> <td><%=newRealese.getNewsId() %> </td> <td><%=newRealese.getClassId() %> </td> <td><%=newRealese.getKindId() %> </td> <td><%=newRealese.getMyOther() %> </td> <td><%=newRealese.getHeadTitle()%> </td> <td><%=newRealese.getContent() %> </td> <td><%=newRealese.getConnectRealtive()%></td> <td><%=newRealese.getAuthor() %> </td> <td><%=newRealese.getEditor() %> </td> <td><%=newRealese.getNewsFrom() %> </td> <td><%=newRealese.getTop() %> </td> <td><%=newRealese.getNewsTime() %> </td> <td><%=newRealese.getHits() %> </td> <td><%=newRealese.getState() %> </td> <td><%=newRealese.getTag() %> </td> </tr> </table><table width="100%" border="0" cellspacing="0" cellpadding="4"> <tr> <td width="100%" style="text-align: center; vertical-align: top"> <table width="90%" border="0" cellpadding="0" cellspacing="0"> <tr> <td> <table width="100%" border="0" cellspacing="1" cellpadding="4" > <tr> <th width="26%" class="TitleColor" style="text-align: right; vertical-align: top" scope="row">新闻标题: </th> <td width="74%" style="vertical-align: top" class="TitleColor" ><p align="left"><%=newRealese.getHeadTitle()%><p></td> </tr> <tr> <th scope="row" class="TitleColor" style="text-align: right; vertical-align: top">作者:</th> <td style="vertical-align: top"><p align="left"><%=newRealese.getAuthor() %> <p> </td> </tr> <tr> <th scope="row" class="TitleColor" style="text-align: right; vertical-align: top">新闻发布时间: </th> <td style="vertical-align: top" class="TitleColor"><p align="left"><%=newRealese.getNewsTime() %><p></td> </tr> <tr> <th scope="row" class="TitleColor" style="text-align: right; vertical-align: top">新闻点击次数: </th> <td style="vertical-align: top" class="TitleColor"><p align="left"><%=newRealese.getHits() %><p></td> </tr> <tr> <td colspan="2" class="StoryContentColor"><p align="center"><%=newRealese.getContent() %><p></td> </tr> </table> </td> </tr> </table> <p> </p> <table> <tr> <td > <a href="newRealese_brief.jsp">返回</a> </td> <td> <a href="#">发表评论</a> </td> </tr> </table> </td> </tr></table><table width="100%" border="0" cellspacing="0" cellpadding="4"> <tr style="text-align: right"> <td> <a href="#">点赞</a> <a href="#">举报</a> <a href="#">投稿,联系作者</a>  </td> </tr></table> <% } %></body></html>

(4)管理员登录界面,命名为adminLogin.jsp页面,使用连接数据库的方式进行登录,在这里我们的管理员名称为Scott,密码为wjk139,管理员登录界面的实现代码如下所示 

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最值得浪漫的殿堂</title><link type="text/css" rel="stylesheet" href="newsRealese.css"/> </head> <body id="body"> <form method="post" action="checkLogin"> <table border="0" align="center" id="table_vertical" > <caption>管理员登录 </caption> <tr> <td width="40">Admin</td> <td width="183"> <input type="text" name="user"></td> </tr> <tr> <td height="25">Pass</td> <td><input type="password" name="pass"></td> </tr> </table> <table align="center"> <tr> <td> <input type="submit" value="Login"> <input type="reset" value="Reset"> </td> </tr> </table></form></body></html>

在登录的过程中,我们需要进行判断,命名为checkLogin.java,,通过此类进行判断登录是否成功,若成功,则跳转到管理界面,若失败,则停留在当前界面,其代码如下所示: 

/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */package servlet;import com.lut.beans.NewsRealese;import dao.NewsRealeseDao;import java.io.IOException;import java.io.PrintWriter;import java.util.logging.Level;import java.util.logging.Logger;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class checkLogin extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); String user=request.getParameter("user"); String pass=request.getParameter("pass"); NewsRealeseDao newsRealeseDao=new NewsRealeseDao(); try { String newsRealese=newsRealeseDao.ischecked(user,pass); if(newsRealese!=null) { response.sendRedirect("adminManager.jsp"); } else { response.sendRedirect("adminLogin.jsp"); } } catch (Exception ex) { Logger.getLogger(checkLogin.class.getName()).log(Level.SEVERE, null, ex); } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override public String getServletInfo() { return "Short description"+"public String getServletInfo() "; }// </editor-fold>}

(5)管理员登陆之后的界面,命名为adminManager.jsp页面,在管理员界面能够进行删除修改增加和查询操作,其代码如下所示:

<%-- Document : adminManager Created on : 2016-5-18, 17:10:01 Author : Administrator--%><%@page import="java.util.ArrayList"%><%@page import="com.lut.beans.NewsRealese"%><%@page import="dao.NewsRealeseDao"%><%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>管理员界面||adminManager.jsp</title> <link type="text/css" rel="stylesheet" href="newsRealese.css"/> </head> <body id="body" style=" text-orientation: vertical-right"> <h1 id="p">新闻管理</h1><br> <table border="1" style="width:100%; height:100%"> <tr> <td width="10%" style="text-align:top"> <table border="0" style="width: 100%;height: 100%" > <tr> <td><div align="center">新闻信息显示 </div></td> </tr> <tr> <td><img src="./images/dog.jpg" width="100%" height="90%"></td> </tr> <tr> <td><img src="./images/minus.gif" ></td> </tr> </table></td> <td width="50%"> <table border="0"> <tr> <td> <% NewsRealeseDao newsRealeseDao = new NewsRealeseDao(); ArrayList newsRealese = newsRealeseDao.queryAllNews(); %> <% for (int i = 0; i < newsRealese.size(); i++) { NewsRealese newRealese = (NewsRealese) newsRealese.get(i); %> <table border="0" width="100%" id="table"> <tr> <td width="128"><p>此处假设无图片</p> <p>此处假设无等级信息</p> </td> <td ><table border="0" width="100%"> <tr> <td >原创或转载:</td> <td ><%=newRealese.getMyOther()%> </td> <td >新闻标题:</td> <td ><%=newRealese.getHeadTitle()%> </td> </tr> <tr> <td colspan="6">新闻内容:</td> </table> <table width="100%" border="0"> <tr> <td> <a target="_blank" href="newRealese_detail.jsp?newsid=<%=newRealese.getNewsId()%>"/> <table width="100%" border="0" align="center"> <tr> <td> <%=newRealese.getContent()%> </td> </tr> </table> </td> </tr> </table> <table border="0" width="100%"> <tr> <td width="51" height="30">作者:</td> <td width="203"><%=newRealese.getAuthor()%> </td> <td width="97">新闻发布时间:</td> <td width="167"><%=newRealese.getNewsTime()%> </td> <td width="99">新闻点击次数:</td> <td width="191"><%=newRealese.getHits()%> </td> </tr> </table></td> </tr> <tr> <td height="21" colspan="2"> <input type="button" name="delete" value="删除" align="middle" onclick="javascrtpt:window.location.href = 'DeleteOneNews?newsid=<%=newRealese.getNewsId()%>'"> <input type="button" name="delete" value="修改" align="middle" onclick="javascrtpt:window.location.href = 'a_updateNews.jsp?newsid=<%=newRealese.getNewsId()%>'"> <hr> </td> </tr> </table> <% } %> </td> </tr> </table> </td> <td width="5%" style=" text-orientation: vertical-right"> <%@include file="a_queryNews.jsp" %> </td> </tr> <tr> <td align="center"><a href="a_addNews.jsp" target="_blank">添加新闻</a></td> <td align="center">二</td> <td align="center">三</td> </tr> </table> </body></html>

(6)增加新闻页面,命名为a_addNews.jsp,能够进行新闻的增加,在添加完信息之后,我们点击发布之后就可以成功添加信息,其代码如下所示,增加新闻时需要对新闻进行编辑,对于长篇幅新闻内容且含有图片的新闻内容的编写,在这儿我们使用功能强大的百度编辑器,首先从官网下载:百度编辑器下载,下载之后解压(我使用的版本是ueditor1_4_3_2-utf8-jsp),如下图所示结构

图10 百度富文本编辑器文件夹结构图 

然后只需将整个文件夹拷贝到项目下即可,在使用时引入和修改路径,在jsp页面里边我已经配置好引用,只需修改路径即可,修改路径时只需将editor_config.js中查找URL变量配置编辑器在你项目中的路径。其中./ueditor为项目中的文件夹 

var URL= window.UEDITOR_HOME_URL||"./ueditor/"; 

这样就配置好了编辑器,下面就是增加新闻的jsp页面,在添加完新闻之后,只需点击发布即可进行新闻的发布操作,代码如下所示: 

<%@page contentType="text/html" import="java.util.*,java.sql.*" pageEncoding="UTF-8" language="java"%><%@page import="com.lut.beans.NewsRealese" %><%@page import="dao.NewsRealeseDao" %><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>添加新闻- 新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最富得浪漫的殿tang</title> <!-- 配置文件 --> <script type="text/javascript" src="./ueditor/ueditor.config.js"></script> <!-- 编辑器源码文件 --> <script type="text/javascript" src="./ueditor/ueditor.all.js"></script> <link rel="stylesheet" type="text/css" href="./udeditor/themes/default/css" /> <link type="text/css" rel="stylesheet" href="newsRealese.css"/> </head> <body id="body"> <form action="InsertOneNews" method="post"> <table border="0" id="table"> <tr> <td width="5%">left</td> <td width="90%"> <table border="1" id="table"> <tr > <td >新闻编号</td> <td><input type="text" name="newsid"></td> <td>所属新闻栏目编号</td> <td><input type="text" name="classid"></td> </tr> <tr> <td>所属新闻分类编号</td> <td><input type="text" name="kindid"></td> <td>原创或转载</td> <td><input type="text" name="myother"></td> </tr> <tr> <td>新闻标题</td> <td><input type="text" name="headtitle"></td> <td>相关文章</td> <td><input type="text" name="connectrealtive"></td> </tr> <tr> <td>作者</td> <td><input type="text" name="author"></td> <td>编辑</td> <td><input type="text" name="editor"></td> </tr> <tr> <td>出处</td> <td><input type="text" name="newsfrom"></td> <td>是否置顶</td> <td><input type="text" name="top"></td> </tr> <tr> <td>新闻发布时间</td> <td><input type="text" name="newstime"></td> <td>新闻点击次数</td> <td><input type="text" name="hits"></td> </tr> <tr> <td>新闻状态</td> <td><input type="text" name="state"></td> <td>新闻标记</td> <td><input type="text" name="tag"></td> </tr> <tr> </table> </td> <td width="5%">right</td> </tr> <tr> <td> </td> <td> <div align="center" style="width:80%"> <textarea id="newsEditor" name="content" style="height: 80%"></textarea> <br/> <input type="submit" value="发 布"> <script type="text/javascript"> UE.getEditor('newsEditor'); // var content = UE.getPlainTxt();//content就是编辑器的带格式的内容 //focus时自动清空初始化时的内容 </script> </div> </td> <td> </td> </tr> </table> </form> </body></html>

在增加新闻时,需要对Servlet进行配置,如下图所示所示为配置文件的结构: 

插入数据Servlet结构图 

下面是InserOneNews.java代码,能够进行对数据的插入功能 

/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */package servlet;import dao.NewsRealeseDao;import java.io.IOException;import java.io.PrintWriter;import java.util.ArrayList;import java.util.logging.Level;import java.util.logging.Logger;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class InsertOneNews extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { ArrayList addnews_list = new ArrayList(); NewsRealeseDao newsRealeseDao = new NewsRealeseDao(); addnews_list.add(0, request.getParameter("newsid")); addnews_list.add(1, request.getParameter("classid")); addnews_list.add(2, request.getParameter("kindid")); addnews_list.add(3, request.getParameter("myother")); addnews_list.add(4, request.getParameter("headtitle")); addnews_list.add(5, request.getParameter("content")); addnews_list.add(6, request.getParameter("connectrealtive")); addnews_list.add(7, request.getParameter("author")); addnews_list.add(8, request.getParameter("editor")); addnews_list.add(9, request.getParameter("newsfrom")); addnews_list.add(10, request.getParameter("top")); addnews_list.add(11, request.getParameter("newstime")); addnews_list.add(12, request.getParameter("hits")); addnews_list.add(13, request.getParameter("state")); addnews_list.add(14,request.getParameter("tag")); try { String newsRealese = newsRealeseDao.insertOneNews(addnews_list); System.out.println("String:"+newsRealese); if (newsRealese!= null) { response.sendRedirect("adminManager.jsp"); } else { response.sendRedirect("a_addNews.jsp"); } } catch (Exception ex) { Logger.getLogger(checkLogin.class.getName()).log(Level.SEVERE, null, ex); } } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override public String getServletInfo() { return "Short description"; }}

至此,我们完整的实现了插入工作 (7)现在完成删除操作,在Servlet包中建立如下所示代码,命名为DeleteOneNews.java:

/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */package servlet;import dao.NewsRealeseDao;import java.io.IOException;import java.io.PrintWriter;import java.util.ArrayList;import java.util.logging.Level;import java.util.logging.Logger;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class DeleteOneNews extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { String str_id=request.getParameter("newsid"); int newsid_int=Integer.valueOf(str_id); NewsRealeseDao newsRealeseDao=new NewsRealeseDao(); try { String newsRealese = newsRealeseDao.deleteOneNews(newsid_int); System.out.println("String:"+newsRealese); if (newsRealese!= null) { response.sendRedirect("adminManager.jsp"); } else { response.sendRedirect("a_addNews.jsp"); } } catch (Exception ex) { Logger.getLogger(checkLogin.class.getName()).log(Level.SEVERE, null, ex); } } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Handles the HTTP <code>POST</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold>}

(8)实现查询操作,命名为a_queryNews.jsp,其代码如下所示:

<%-- Document : a_queryNews Created on : 2016-5-18, 17:08:40 Author : Administrator--%><%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>查询页面</title> </head> <body> <table style="width:100%;height:100%" border="0"> <tr> <td> <form action="QueryOneNews" method="post" target="_blank" > 请输入新闻编号:<input type="text" name="query"> <input type="submit" value="查询" ><br> </form> <hr></td> </tr> <tr> <td> </td> </tr> </table> </body></html>

对于查询这件事,有成功,有失败,在这儿我们进行失败后文件的设置,代码如下所示,命名为a_queryNewsfailed.jsp,使用超级连接的方式,连接到主页面 

<%-- Document : a_queryNeesfailed Created on : 2016-6-6, 8:43:35 Author : Administrator--%><%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>查询失败</title> </head> <body> <h1>没有找到你要查找的内容,但是你可以进入</h1> <a href="index.html">主页进行查看</a> </body></html>

实现了以上显示层的操作之后,下面就是控制层的实现,命名为QueryOneNews.java,其代码如下所示:

/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */package servlet;import dao.NewsRealeseDao;import java.io.IOException;import java.io.PrintWriter;import java.util.ArrayList;import java.util.logging.Level;import java.util.logging.Logger;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class QueryOneNews extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { String str_id=request.getParameter("query"); int newsid_int=Integer.valueOf(str_id); NewsRealeseDao newsRealeseDao=new NewsRealeseDao(); try { ArrayList newsRealese = newsRealeseDao.queryOneNews(newsid_int); char [] s1=newsRealese.toString().toCharArray(); System.out.println("String+newsRealese:"+newsRealese); System.out.println("String+newsRealese:"+s1[0]+" -------"+s1[1]); if(s1[0]=='['&&s1[1]==']') { response.sendRedirect("a_queryNewsfailed.jsp"); } else { response.sendRedirect("newRealese_detail.jsp?newsid="+str_id); } } catch (Exception ex) { Logger.getLogger(checkLogin.class.getName()).log(Level.SEVERE, null, ex); } } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override public String getServletInfo() { return "Short description"; }}

(9)下面实现更新数据的操作,命名为a_updateNews.jsp,其代码如下所示:

<%@page contentType="text/html" import="java.util.*,java.sql.*" pageEncoding="UTF-8" language="java"%><%@page import="com.lut.beans.NewsRealese" %><%@page import="dao.NewsRealeseDao" %><!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>更改新闻-</title> <!-- 配置文件 --> <script type="text/javascript" src="./ueditor/ueditor.config.js"></script> <!-- 编辑器源码文件 --> <script type="text/javascript" src="./ueditor/ueditor.all.js"></script> <link rel="stylesheet" type="text/css" href="./udeditor/themes/default/css" /> <link type="text/css" rel="stylesheet" href="newsRealese.css"/> </head> <body id="body"> <% NewsRealeseDao newsRealeseDao=new NewsRealeseDao(); String newsid_s=request.getParameter("newsid"); int news_int=Integer.valueOf(newsid_s); ArrayList news_list=newsRealeseDao.queryOneNews(news_int); %> <% for(int i=0;i<news_list.size();i++) { NewsRealese newRealese=(NewsRealese)news_list.get(i); %> <form action="UpdateOneNews" method="post"> <table border="0" id="table" style="width:95%"> <tr> <td width="5%">left</td> <td width="90%"> <table border="1" id="table" style="width:100%"> <tr > <tr> <td >新闻编号</td> <td><input type="text" width="100%" name="newsid" value="<%=newRealese.getNewsId() %>"></td> <td>所属新闻栏目编号</td> <td><input type="text" width="100%" name="classid" value="<%=newRealese.getClassId() %>"></td> </tr> <tr> <td>所属新闻分类编号</td> <td><input type="text" width="100%" name="kindid" value="<%=newRealese.getKindId() %>"></td> <td>原创或转载</td> <td><input type="text" width="100%" name="myother" value="<%=newRealese.getMyOther() %>"></td> </tr> <tr> <td>新闻标题</td> <td><input type="text" width="100%" name="headtitle" value="<%=newRealese.getHeadTitle()%>"></td> <td>相关文章</td> <td><input type="text" width="100%" name="connectrealtive" value="<%=newRealese.getConnectRealtive()%>"></td> </tr> <tr> <td>作者</td> <td><input type="text" width="100%" name="author" value="<%=newRealese.getAuthor() %>"></td> <td>编辑</td> <td><input type="text" width="100%" name="editor" value="<%=newRealese.getEditor() %>"></td> </tr> <tr> <td>出处</td> <td><input type="text" width="100%" name="newsfrom" value="<%=newRealese.getNewsFrom() %>"></td> <td>是否置顶</td> <td><input type="text" width="100%" name="top" value="<%=newRealese.getTop() %>"></td> </tr> <tr> <td>新闻发布时间</td> <td><input type="text" width="100%" name="newstime" value="<%=newRealese.getNewsTime() %> "></td> <td>新闻点击次数</td> <td><input type="text" width="100%" name="hits" value="<%=newRealese.getHits() %>"></td> </tr> <tr> <td>新闻状态</td> <td><input type="text" name="state" width="100%" value="<%=newRealese.getState() %>"></td> <td>新闻标记</td> <td><input type="text" width="100%" name="tag" value="<%=newRealese.getTag() %>"></td> </tr> <tr> </table> </td> <td width="5%">right</td> </tr> <tr> <td> </td> <td> <div align="center" style="width:80%"> <textarea id="newsEditor" name="content" style="height: 80%"><%=newRealese.getContent() %></textarea> <br/> <input type="submit" value="发 布"> <script type="text/javascript"> UE.getEditor('newsEditor'); var content=UE.getPlainTxt();//s就是编辑器的带格式的内容 </script> </div> </td> <td> </td> </tr></table> </form> <% } %></body></html>

在Servlet中进行如下代码所示配置:

/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */package servlet;import dao.NewsRealeseDao;import java.io.IOException;import java.io.PrintWriter;import java.util.ArrayList;import java.util.logging.Level;import java.util.logging.Logger;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class UpdateOneNews extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { ArrayList addnews_list = new ArrayList(); NewsRealeseDao newsRealeseDao = new NewsRealeseDao(); addnews_list.add(0, request.getParameter("newsid")); addnews_list.add(1, request.getParameter("classid")); addnews_list.add(2, request.getParameter("kindid")); addnews_list.add(3, request.getParameter("myother")); addnews_list.add(4, request.getParameter("headtitle")); addnews_list.add(5, request.getParameter("content")); addnews_list.add(6, request.getParameter("connectrealtive")); addnews_list.add(7, request.getParameter("author")); addnews_list.add(8, request.getParameter("editor")); addnews_list.add(9, request.getParameter("newsfrom")); addnews_list.add(10, request.getParameter("top")); addnews_list.add(11, request.getParameter("newstime")); addnews_list.add(12, request.getParameter("hits")); addnews_list.add(13, request.getParameter("state")); addnews_list.add(14,request.getParameter("tag")); try { String newsRealese = newsRealeseDao.updateOneNews(addnews_list); System.out.println("String:"+newsRealese); if (newsRealese!= null) { response.sendRedirect("adminManager.jsp"); } else { response.sendRedirect("a_addNews.jsp"); } } catch (Exception ex) { Logger.getLogger(checkLogin.class.getName()).log(Level.SEVERE, null, ex); } } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override public String getServletInfo() { return "Short description"; }}

到这儿,我们已经实现了对增删改查功能的实现,当然,基本的新闻发布功能已经实现 

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持突袭网。

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