基于jsp实现新闻管理系统附完整源码

2024-09-05 00:22:39

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很棒的新闻发布系统分享给大家，希望大家喜欢。

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。

注：完整项目下载地址：新闻发布系统

一、效果演示

首先让我们来看一看实现的效果：

下面是登陆的首界面：

jsp新闻管理系统,jsp管理系统

图1 首界面

管理员登录页面：

jsp新闻管理系统,jsp管理系统

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：

jsp新闻管理系统,jsp管理系统

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：

jsp新闻管理系统,jsp管理系统

图4 添加新闻界面

下面是所添加的新闻：

jsp新闻管理系统,jsp管理系统

图5 添加后的新闻

下面是修改新闻界面：

jsp新闻管理系统,jsp管理系统

图6 修改新闻界面下面是修改后的界面

jsp新闻管理系统,jsp管理系统

图7 修改后的界面

下面是删除新闻后的界面：

jsp新闻管理系统,jsp管理系统

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：

jsp新闻管理系统,jsp管理系统

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

jsp新闻管理系统,jsp管理系统

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：

jsp新闻管理系统,jsp管理系统

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VeVb武林网。

注：相关教程知识阅读请移步到JSP教程频道。

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