很棒的新聞發布系統分享給大家，希望大家喜歡。
下面就讓我們來說一說基于jsp的新聞發布系統，其中使用的技術有JavaBean、fillter、數據庫等，能夠實現新聞的發布功能，在發布之后能夠進行對每一條新聞的刪除、修改、或者繼續增加新的文章，最后還能夠進行查詢功能，其中引用了百度編輯器，能夠進行圖文并茂的編輯，極大地方便用戶的使用。
注：完整項目下載地址：新聞發布系統
一、效果演示
首先讓我們來看一看實現的效果：
下面是登陸的首界面：
圖1 首界面
管理員登錄頁面：
圖2 管理員登錄界面
下面是管理員登陸之后的界面，可以進行添加新聞、刪除新聞、查詢新聞：
圖3 管理員管理界面
下面是添加新聞界面，能夠進行新聞的添加：
圖4 添加新聞界面
下面是所添加的新聞：
圖5 添加后的新聞
下面是修改新聞界面：
圖6 修改新聞界面下面是修改后的界面
圖7 修改后的界面
下面是刪除新聞后的界面：
圖8 刪除新聞后的界面
對于新聞的查找，與其他類似，在這里我們使用的是利用新聞編號進行查詢所需的信息，然后在新的頁面上進行顯示。
二、具體實現過程
1、環境：編程環境為NetBeans8.0和Oracle數據庫
2、數據庫后臺的設計
在新聞管理系統中，我們需要數據庫后臺管理，其具體步驟如下所示：
根據所需的業務進行建表，可參見如下所示：建立數據庫
3、編寫步驟：
（1）首先建立以個項目，在此命名為Demo_08_NewsRealese,項目布局結構如下圖所示，根據如下布局對項目進行布局設計，方便后面的編程，項目中web-inf為項目配置文件夾，images文件夾用于儲存項目中使用的圖片文件，ueditor為百度富文本編輯器文件夾，源包文件夾為Java類文件夾：
圖9 項目布局結構圖
接著，我們進行創建數據庫連接層，即DAO和VO，分別存于包com.lut.beans和dao,類命名分別命名為NewsRealese、NewsRealeseDao，對于類NewsRealese而言，主要是實現字符串的包裝，其內容與數據庫里邊的內容一一對應，其代碼分別如下所示：
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; } }下面是類DAO類，命名為NewsRealeseDao.java，對于DAO類，主要用于實現數據庫的連接問題，進行數據庫的鏈接，在連接過程中需要用到各種有關數據庫的技術，在這里我們使用的是Oracle數據庫，其獲取鏈接的方式為如下代碼，其中第一行為驅動程序名，第二行為數據庫地址（orcl為Oracle數據庫中的SID，在安裝Oracle數據庫時需要記住），第三行為具體的連接，及使用URL找到數據庫位置，然后使用密碼wjk139登錄到Scott賬戶
//獲取連接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139"); 其他的操作分別為增刪改查的具體代碼，分別對應Servlet中或jsp中需要實例化的代碼，下面就是具體的DAO類代碼：
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 { //獲取連接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139"); //運行SQL語句 String sql = "select * from newmessage";//獲取 Statement stat = conn.createStatement(); ResultSet rs = stat.executeQuery(sql); while (rs.next()) { //實例化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 {//關閉連接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } return newsRealese; } } //查詢一個消息 public ArrayList queryOneNews(int newsid) throws Exception { Connection conn = null; ArrayList newsRealese = new ArrayList(); int temp_id = newsid; try { //獲取連接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //運行SQL語句 Statement stat = conn.createStatement(); String sql = "select * from newmessage where newsid=?";//獲取newsid，使用？代替字符串，以免會發生錯誤 PreparedStatement ps = conn.prepareStatement(sql); ps.setInt(1, Integer.valueOf(newsid)); ResultSet rs = ps.executeQuery();// 之前已經給了sql字符串，所以executeUpdate是無參的。 while (rs.next()) { //實例化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 {//關閉連接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } return newsRealese; } } //刪除數據 public String deleteOneNews(int newsid) throws Exception { Connection conn = null; ArrayList newsRealese = new ArrayList(); int temp_id = newsid; try { //獲取連接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //運行SQL語句 Statement stat = conn.createStatement(); String sql = "DELETE FROM newmessage WHERE newsid =?";//獲取newsid，使用？代替字符串，以免會發生錯誤 PreparedStatement ps = conn.prepareStatement(sql); ps.setInt(1, Integer.valueOf(newsid)); ResultSet rs = ps.executeQuery();// 之前已經給了sql字符串，所以executeUpdate是無參的。 rs.close(); stat.close(); } catch (Exception e1) { e1.printStackTrace(); } finally { try {//關閉連接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } return newsRealese.toString(); } } //插入數據 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 { //獲取連接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //運行SQL語句 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(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";//獲取newsid，使用？代替字符串，以免會發生錯誤 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 {//關閉連接 if (conn != null) { conn.close(); conn = null; } } catch (Exception ex) { } } return conn.toString(); } //更新數據 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 { //獲取連接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; conn = DriverManager.getConnection(url, "scott", "wjk139");//不安全 //運行SQL語句 Statement stat = conn.createStatement(); //獲取newsid，使用？代替字符串，以免會發生錯誤 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 {//關閉連接 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; //獲取連接 Class.forName("oracle.jdbc.driver.OracleDriver"); String url = "jdbc:oracle:thin:@localhost:1521:orcl"; try { conn = DriverManager.getConnection(url,user, pass);//不安全 //建立連接 return conn.toString(); } catch (SQLException e) { e.printStackTrace(); } finally { if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } return null; } }（2）首頁展示頁面的編寫，命名為index.html,由于可能有網絡的延遲，我們使用漸進的方式跳轉（漸進方式跳轉：window.location.href="newRealese_brief.jsp"，從index.html頁面跳轉到ewRealese_brief.jsp頁面），代碼如下所示：
<!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>新聞發布系統--最前沿的時尚信息、最有看點的社會聚焦、最富得浪漫的殿堂</title> </head> <body id="body"> 正在跳轉...,請等待... <script language="javascript" type="text/javascript"> window.location.href="newRealese_brief.jsp"; </script> </body></html>
在緩沖時，會進行跳轉，跳轉后的頁面為newRealese_brief.jsp,其代碼如下所示：進入新聞展示頁面之后，我們能夠對新聞進行搜素，還能夠查看詳細內容。
<%@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>新聞發布系統--最前沿的時尚信息、最有看點的社會聚焦、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">管理員登錄</a><h1 id="p">最新資訊</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>此處假設無圖片</p> <p>此處假設無等級信息</p> </td> <td ><table border="0" width="100%"> <tr> <td width="11%" >原創或轉載:</td> <td colspan="3"><%=newRealese.getMyOther()%> </td> <td width="10%" >新聞標題:</td> <td width="44%" ><%=newRealese.getHeadTitle()%> </td> </tr> <tr> <td colspan="6">新聞內容:</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">新聞發布時間:</td> <td width="167"><%=newRealese.getNewsTime()%> </td> <td width="99">新聞點擊次數:</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）詳細新聞頁面的設計，命名為newRealese_detail.jsp其代碼如下所示：再詳細新聞頁面上，我們能夠進行數據的詳細情況的了解，在觀看完詳細信息之后，我們能夠進行點擊返回按鈕進行返回操作
<%@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>新聞發布系統--最前沿的時尚信息、最有看點的社會聚焦、最值得浪漫的殿堂</title> </head> <body id="body"> <h1>最新資訊</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 >新聞編號</td> <td>所屬新聞欄目編號</td> <td>所屬新聞分類編號</td> <td>原創或轉載</td> <td>新聞標題</td> <td>新聞內容</td> <td>相關文章</td> <td>作者</td> <td>編輯</td> <td>出處</td> <td>是否置頂</td> <td>新聞發布時間</td> <td>新聞點擊次數</td> <td>新聞狀態</td> <td>新聞標記</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">新聞標題: </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">新聞發布時間: </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">新聞點擊次數: </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="#">發表評論</a> </td> </tr> </table> </td> </tr></table><table width="100%" border="0" cellspacing="0" cellpadding="4"> <tr style="text-align: right"> <td> <a href="#">點贊</a> <a href="#">舉報</a> <a href="#">投稿，聯系作者</a> </td> </tr></table> <% } %></body></html>（4）管理員登錄界面，命名為adminLogin.jsp頁面，使用連接數據庫的方式進行登錄，在這里我們的管理員名稱為Scott，密碼為wjk139，管理員登錄界面的實現代碼如下所示
<%@ 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>新聞發布系統--最前沿的時尚信息、最有看點的社會聚焦、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>管理員登錄 </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>
在登錄的過程中，我們需要進行判斷，命名為checkLogin.java,，通過此類進行判斷登錄是否成功，若成功，則跳轉到管理界面，若失敗，則停留在當前界面，其代碼如下所示：
/* * 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）管理員登陸之后的界面，命名為adminManager.jsp頁面，在管理員界面能夠進行刪除修改增加和查詢操作，其代碼如下所示：
<%-- 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>管理員界面||adminManager.jsp</title> <link type="text/css" rel="stylesheet" href="newsRealese.css"/> </head> <body id="body" style=" text-orientation: vertical-right"> <h1 id="p">新聞管理</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">新聞信息顯示 </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>此處假設無圖片</p> <p>此處假設無等級信息</p> </td> <td ><table border="0" width="100%"> <tr> <td >原創或轉載:</td> <td ><%=newRealese.getMyOther()%> </td> <td >新聞標題:</td> <td ><%=newRealese.getHeadTitle()%> </td> </tr> <tr> <td colspan="6">新聞內容:</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">新聞發布時間:</td> <td width="167"><%=newRealese.getNewsTime()%> </td> <td width="99">新聞點擊次數:</td> <td width="191"><%=newRealese.getHits()%> </td> </tr> </table></td> </tr> <tr> <td height="21" colspan="2"> <input type="button" name="delete" value="刪除" 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">添加新聞</a></td> <td align="center">二</td> <td align="center">三</td> </tr> </table> </body></html>（6）增加新聞頁面，命名為a_addNews.jsp，能夠進行新聞的增加，在添加完信息之后，我們點擊發布之后就可以成功添加信息，其代碼如下所示，增加新聞時需要對新聞進行編輯，對于長篇幅新聞內容且含有圖片的新聞內容的編寫，在這兒我們使用功能強大的百度編輯器，首先從官網下載：百度編輯器下載，下載之后解壓(我使用的版本是ueditor1_4_3_2-utf8-jsp)，如下圖所示結構
圖10 百度富文本編輯器文件夾結構圖
然后只需將整個文件夾拷貝到項目下即可，在使用時引入和修改路徑，在jsp頁面里邊我已經配置好引用，只需修改路徑即可，修改路徑時只需將editor_config.js中查找URL變量配置編輯器在你項目中的路徑。其中./ueditor為項目中的文件夾
var URL= window.UEDITOR_HOME_URL||"./ueditor/";
這樣就配置好了編輯器，下面就是增加新聞的jsp頁面，在添加完新聞之后，只需點擊發布即可進行新聞的發布操作，代碼如下所示：
<%@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>添加新聞- 新聞發布系統--最前沿的時尚信息、最有看點的社會聚焦、最富得浪漫的殿tang</title> <!-- 配置文件 --> <script type="text/javascript" src="./ueditor/ueditor.config.js"></script> <!-- 編輯器源碼文件 --> <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 >新聞編號</td> <td><input type="text" name="newsid"></td> <td>所屬新聞欄目編號</td> <td><input type="text" name="classid"></td> </tr> <tr> <td>所屬新聞分類編號</td> <td><input type="text" name="kindid"></td> <td>原創或轉載</td> <td><input type="text" name="myother"></td> </tr> <tr> <td>新聞標題</td> <td><input type="text" name="headtitle"></td> <td>相關文章</td> <td><input type="text" name="connectrealtive"></td> </tr> <tr> <td>作者</td> <td><input type="text" name="author"></td> <td>編輯</td> <td><input type="text" name="editor"></td> </tr> <tr> <td>出處</td> <td><input type="text" name="newsfrom"></td> <td>是否置頂</td> <td><input type="text" name="top"></td> </tr> <tr> <td>新聞發布時間</td> <td><input type="text" name="newstime"></td> <td>新聞點擊次數</td> <td><input type="text" name="hits"></td> </tr> <tr> <td>新聞狀態</td> <td><input type="text" name="state"></td> <td>新聞標記</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="發 布"> <script type="text/javascript"> UE.getEditor('newsEditor'); // var content = UE.getPlainTxt();//content就是編輯器的帶格式的內容 //focus時自動清空初始化時的內容 </script> </div> </td> <td> </td> </tr> </table> </form> </body></html>在增加新聞時，需要對Servlet進行配置，如下圖所示所示為配置文件的結構：
插入數據Servlet結構圖
下面是InserOneNews.java代碼，能夠進行對數據的插入功能
/* * 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，我們完整的實現了插入工作 （7）現在完成刪除操作，在Servlet包中建立如下所示代碼，命名為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)實現查詢操作，命名為a_queryNews.jsp,其代碼如下所示：
<%-- 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>查詢頁面</title> </head> <body> <table style="width:100%;height:100%" border="0"> <tr> <td> <form action="QueryOneNews" method="post" target="_blank" > 請輸入新聞編號：<input type="text" name="query"> <input type="submit" value="查詢" ><br> </form> <hr></td> </tr> <tr> <td> </td> </tr> </table> </body></html>
對于查詢這件事，有成功，有失敗，在這兒我們進行失敗后文件的設置，代碼如下所示，命名為a_queryNewsfailed.jsp,使用超級連接的方式，連接到主頁面
<%-- 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>查詢失敗</title> </head> <body> <h1>沒有找到你要查找的內容，但是你可以進入</h1> <a href="index.html">主頁進行查看</a> </body></html>
實現了以上顯示層的操作之后，下面就是控制層的實現，命名為QueryOneNews.java,其代碼如下所示：
/* * 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)下面實現更新數據的操作，命名為a_updateNews.jsp,其代碼如下所示：
<%@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>更改新聞-</title> <!-- 配置文件 --> <script type="text/javascript" src="./ueditor/ueditor.config.js"></script> <!-- 編輯器源碼文件 --> <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 >新聞編號</td> <td><input type="text" width="100%" name="newsid" value="<%=newRealese.getNewsId() %>"></td> <td>所屬新聞欄目編號</td> <td><input type="text" width="100%" name="classid" value="<%=newRealese.getClassId() %>"></td> </tr> <tr> <td>所屬新聞分類編號</td> <td><input type="text" width="100%" name="kindid" value="<%=newRealese.getKindId() %>"></td> <td>原創或轉載</td> <td><input type="text" width="100%" name="myother" value="<%=newRealese.getMyOther() %>"></td> </tr> <tr> <td>新聞標題</td> <td><input type="text" width="100%" name="headtitle" value="<%=newRealese.getHeadTitle()%>"></td> <td>相關文章</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>編輯</td> <td><input type="text" width="100%" name="editor" value="<%=newRealese.getEditor() %>"></td> </tr> <tr> <td>出處</td> <td><input type="text" width="100%" name="newsfrom" value="<%=newRealese.getNewsFrom() %>"></td> <td>是否置頂</td> <td><input type="text" width="100%" name="top" value="<%=newRealese.getTop() %>"></td> </tr> <tr> <td>新聞發布時間</td> <td><input type="text" width="100%" name="newstime" value="<%=newRealese.getNewsTime() %> "></td> <td>新聞點擊次數</td> <td><input type="text" width="100%" name="hits" value="<%=newRealese.getHits() %>"></td> </tr> <tr> <td>新聞狀態</td> <td><input type="text" name="state" width="100%" value="<%=newRealese.getState() %>"></td> <td>新聞標記</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="發 布"> <script type="text/javascript"> UE.getEditor('newsEditor'); var content=UE.getPlainTxt();//s就是編輯器的帶格式的內容 </script> </div> </td> <td> </td> </tr></table> </form> <% } %></body></html>在Servlet中進行如下代碼所示配置：
/* * 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"; }}到這兒，我們已經實現了對增刪改查功能的實現，當然，基本的新聞發布功能已經實現
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持VeVb武林網。
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