基于jsp实现新闻管理系统附完整源码

网络编程 2024/11/1 佚名

3 2 1

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：

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="
 + "connectRealtive="; 
 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%">&nbsp;</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"/>
 <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>&nbsp;</td>
 </tr>
 <tr>
 <td>&nbsp;</td>
 <td>&nbsp;</td>
 <td>&nbsp;</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>&nbsp;</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>&nbsp; </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="/UploadFiles/2021-04-02/dog.jpg">

（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="/UploadFiles/2021-04-02/ueditor.config.js">

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>&nbsp;</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"+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="/UploadFiles/2021-04-02/ueditor.config.js">

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 
关于管理系统的更多内容请点击《管理系统专题》进行学习
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。

                                
                                
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