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=?,kindid=?,myother=?,headtitle=?,content=?,"
+ "connectrealtive=?,author=?,editor=?,newsfrom=?,top=?,newstime=?,hits=?,state=?,tag=? where newsid=?";
preparedstatement ps = conn.preparestatement(sql);
ps.setint(1, integer.valueof(addnews_list.get(1).tostring()));
ps.setint(2, integer.valueof(addnews_list.get(2).tostring()));
ps.setint(3, integer.valueof(addnews_list.get(3).tostring()));
ps.setstring(4, addnews_list.get(4).tostring());
ps.setstring(5, addnews_list.get(5).tostring());
ps.setstring(6, addnews_list.get(6).tostring());
ps.setstring(7, addnews_list.get(7).tostring());
ps.setstring(8, addnews_list.get(8).tostring());
ps.setstring(9, addnews_list.get(9).tostring());
ps.setint(10, integer.valueof(addnews_list.get(10).tostring()));
ps.setstring(11, addnews_list.get(11).tostring());
ps.setstring(12, addnews_list.get(12).tostring());
ps.setstring(13, addnews_list.get(13).tostring());
ps.setstring(14, addnews_list.get(14).tostring());
ps.setint(15, integer.valueof(addnews_list.get(0).tostring()));
for (int i = 0, j = 1; i < addnews_list.size(); i++, j++) {
system.out.println("j:" + j + "值：" + addnews_list.get(i).tostring());
}
int i = ps.executeupdate();
conn.commit();
system.out.println("成功更新" + i + "行");
stat.close();
conn.close();
return i + "conn:" + conn;
} catch (exception e1) {
e1.printstacktrace();
} finally {
try {//关闭连接
if (conn != null) {
conn.close();
conn = null;
}
} catch (exception ex) {
}
}
return conn.tostring();
}
public string ischecked(string user, string pass) throws exception {
connection conn = null;
//获取连接
class.forname("oracle.jdbc.driver.oracledriver");
string url = "jdbc:oracle:thin:@localhost:1521:orcl";
try {
conn = drivermanager.getconnection(url,user, pass);//不安全
//建立连接
return conn.tostring();
}
catch (sqlexception e)
{
e.printstacktrace();
}
finally
{
if (conn != null)
{
try {
conn.close();
} catch (sqlexception e)
{
e.printstacktrace();
}
}
}
return null;
}
}
（2）首页展示页面的编写，命名为index.html,由于可能有网络的延迟，我们使用渐进的方式跳转（渐进方式跳转：window.location.href="newrealese_brief.jsp"，从index.html页面跳转到ewrealese_brief.jsp页面），代码如下所示：
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<link type="text/css" rel="stylesheet" href="newsrealese.css"/>
<title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最富得浪漫的殿堂</title>
</head>
<body id="body">
正在跳转...,请等待...
<script language="javascript" type="text/javascript">
window.location.href="newrealese_brief.jsp";
</script>
</body>
</html>
在缓冲时，会进行跳转，跳转后的页面为newrealese_brief.jsp,其代码如下所示：进入新闻展示页面之后，我们能够对新闻进行搜素，还能够查看详细内容。
<%@page contenttype="text/html" import="java.util.*,java.sql.*,com.lut.beans.newsrealese,dao.newsrealesedao"
pageencoding="utf-8" language="java"%>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最富得浪漫的殿堂</title>
<link type="text/css" rel="stylesheet" href="newsrealese.css"/>
</head>
<body id="body">
<a href="adminlogin.jsp" style="table-layout: right">管理员登录</a><h1 id="p">最新资讯</h1><br>
<%@include file="a_querynews.jsp" %>
<table border="0" style="width:100%; height:100%" align="center">
<tr>
<td style="width: 10%"> </td>
<td>
<%
newsrealesedao newsrealesedao = new newsrealesedao();
arraylist newsrealese = newsrealesedao.queryallnews();
%>
<%
for (int i = 0; i < newsrealese.size(); i++) {
newsrealese newrealese = (newsrealese) newsrealese.get(i);
%>
<center><table border="0" width="100%" id="table">
<tr>
<td width="128"><p>此处假设无图片</p>
<p>此处假设无等级信息</p>
</td>
<td ><table border="0" width="100%">
<tr>
<td width="11%" >原创或转载:</td>
<td colspan="3"><%=newrealese.getmyother()%> </td>
<td width="10%" >新闻标题:</td>
<td width="44%" ><%=newrealese.getheadtitle()%> </td>
</tr>
<tr>
<td colspan="6">新闻内容:</td>
</table>
<table width="100%" border="0">
<tr>
<td>
<a target="_blank" href="newrealese_detail.jsp?newsid=<%=newrealese.getnewsid()%>"/>
<table width="100%" border="0" align="center">
<tr>
<td>
<%=newrealese.getcontent()%>
</td>
</tr>
</table>
</td>
</tr>
</table>
<table border="0" width="100%">
<tr>
<td width="51" height="30">作者:</td>
<td width="203"><%=newrealese.getauthor()%> </td>
<td width="97">新闻发布时间:</td>
<td width="167"><%=newrealese.getnewstime()%> </td>
<td width="99">新闻点击次数:</td>
<td width="191"><%=newrealese.gethits()%> </td>
</tr>
</table></td>
</tr>
<tr>
<td height="21" colspan="2"><hr></td>
</tr>
</table></center>
<%
}
%>
</td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
</body>
</html>
（3）详细新闻页面的设计，命名为newrealese_detail.jsp其代码如下所示：再详细新闻页面上，我们能够进行数据的详细情况的了解，在观看完详细信息之后，我们能够进行点击返回按钮进行返回操作
<%@page contenttype="text/html" import="java.util.*,java.sql.*" pageencoding="utf-8" language="java"%>
<%@page import="com.lut.beans.newsrealese" %>
<%@page import="dao.newsrealesedao" %>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<link type="text/css" rel="stylesheet" href="newsrealese.css"/>
<title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最值得浪漫的殿堂</title>
</head>
<body id="body">
<h1>最新资讯</h1><br>
<%
string newsid=request.getparameter("newsid");
int newsid_int=integer.parseint(newsid);
newsrealesedao newsrealesedao=new newsrealesedao();
arraylist newsrealese=newsrealesedao.queryonenews(newsid_int);
%>
<table border="1">
<tr >
<td >新闻编号</td>
<td>所属新闻栏目编号</td>
<td>所属新闻分类编号</td>
<td>原创或转载</td>
<td>新闻标题</td>
<td>新闻内容</td>
<td>相关文章</td>
<td>作者</td>
<td>编辑</td>
<td>出处</td>
<td>是否置顶</td>
<td>新闻发布时间</td>
<td>新闻点击次数</td>
<td>新闻状态</td>
<td>新闻标记</td>
</tr>
<%
for(int i=0;i<newsrealese.size();i++)
{
newsrealese newrealese=(newsrealese)newsrealese.get(i);
%>
<tr>
<td><%=newrealese.getnewsid() %> </td>
<td><%=newrealese.getclassid() %> </td>
<td><%=newrealese.getkindid() %> </td>
<td><%=newrealese.getmyother() %> </td>
<td><%=newrealese.getheadtitle()%> </td>
<td><%=newrealese.getcontent() %> </td>
<td><%=newrealese.getconnectrealtive()%></td>
<td><%=newrealese.getauthor() %> </td>
<td><%=newrealese.geteditor() %> </td>
<td><%=newrealese.getnewsfrom() %> </td>
<td><%=newrealese.gettop() %> </td>
<td><%=newrealese.getnewstime() %> </td>
<td><%=newrealese.gethits() %> </td>
<td><%=newrealese.getstate() %> </td>
<td><%=newrealese.gettag() %> </td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="4">
<tr>
<td width="100%" style="text-align: center; vertical-align: top">
<table width="90%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>
<table width="100%" border="0" cellspacing="1" cellpadding="4" >
<tr>
<th width="26%" class="titlecolor" style="text-align: right; vertical-align: top" scope="row">新闻标题: </th>
<td width="74%" style="vertical-align: top" class="titlecolor" ><p align="left"><%=newrealese.getheadtitle()%><p></td>
</tr>
<tr>
<th scope="row" class="titlecolor" style="text-align: right; vertical-align: top">作者:</th>
<td style="vertical-align: top"><p align="left"><%=newrealese.getauthor() %> <p> </td>
</tr>
<tr>
<th scope="row" class="titlecolor" style="text-align: right; vertical-align: top">新闻发布时间: </th>
<td style="vertical-align: top" class="titlecolor"><p align="left"><%=newrealese.getnewstime() %><p></td>
</tr>
<tr>
<th scope="row" class="titlecolor" style="text-align: right; vertical-align: top">新闻点击次数: </th>
<td style="vertical-align: top" class="titlecolor"><p align="left"><%=newrealese.gethits() %><p></td>
</tr>
<tr>
<td colspan="2" class="storycontentcolor"><p align="center"><%=newrealese.getcontent() %><p></td>
</tr>
</table>
</td>
</tr>
</table>
<p> </p>
<table>
<tr>
<td >
<a href="newrealese_brief.jsp">返回</a>
</td>
<td>
<a href="#">发表评论</a>
</td>
</tr>
</table>
</td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="4">
<tr style="text-align: right">
<td> <a href="#">点赞</a> <a href="#">举报</a> <a href="#">投稿，联系作者</a> </td>
</tr>
</table>
<%
}
%>
</body>
</html>
（4）管理员登录界面，命名为adminlogin.jsp页面，使用连接数据库的方式进行登录，在这里我们的管理员名称为scott，密码为wjk139，管理员登录界面的实现代码如下所示
<%@ page contenttype="text/html; charset=gb2312" language="java" import="java.sql.*" errorpage="" %>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最值得浪漫的殿堂</title>
<link type="text/css" rel="stylesheet" href="newsrealese.css"/>
</head>
<body id="body">
<form method="post" action="checklogin">
<table border="0" align="center" id="table_vertical" >
<caption>管理员登录 </caption>
<tr>
<td width="40">admin</td>
<td width="183">
<input type="text" name="user"></td>
</tr>
<tr>
<td height="25">pass</td>
<td><input type="password" name="pass"></td>
</tr>
</table>
<table align="center">
<tr>
<td>
<input type="submit" value="login">
<input type="reset" value="reset">
</td>
</tr>
</table>
</form>
</body>
</html>
在登录的过程中，我们需要进行判断，命名为checklogin.java,，通过此类进行判断登录是否成功，若成功，则跳转到管理界面，若失败，则停留在当前界面，其代码如下所示：
/*
* to change this license header, choose license headers in project properties.
* to change this template file, choose tools | templates
* and open the template in the editor.
*/
package servlet;
import com.lut.beans.newsrealese;
import dao.newsrealesedao;
import java.io.ioexception;
import java.io.printwriter;
import java.util.logging.level;
import java.util.logging.logger;
import javax.servlet.servletexception;
import javax.servlet.http.httpservlet;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
public class checklogin extends httpservlet {
protected void processrequest(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
response.setcontenttype("text/html;charset=utf-8");
string user=request.getparameter("user");
string pass=request.getparameter("pass");
newsrealesedao newsrealesedao=new newsrealesedao();
try {
string newsrealese=newsrealesedao.ischecked(user,pass);
if(newsrealese!=null)
{
response.sendredirect("adminmanager.jsp");
}
else
{
response.sendredirect("adminlogin.jsp");
}
}
catch (exception ex)
{
logger.getlogger(checklogin.class.getname()).log(level.severe, null, ex);
}
}
@override
protected void doget(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
protected void dopost(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
public string getservletinfo() {
return "short description"+"public string getservletinfo() ";
}// </editor-fold>
}
（5）管理员登陆之后的界面，命名为adminmanager.jsp页面，在管理员界面能够进行删除修改增加和查询操作，其代码如下所示：
<%--
document : adminmanager
created on : 2016-5-18, 17:10:01
author : administrator
--%>
<%@page import="java.util.arraylist"%>
<%@page import="com.lut.beans.newsrealese"%>
<%@page import="dao.newsrealesedao"%>
<%@page contenttype="text/html" pageencoding="utf-8"%>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>管理员界面||adminmanager.jsp</title>
<link type="text/css" rel="stylesheet" href="newsrealese.css"/>
</head>
<body id="body" style=" text-orientation: vertical-right">
<h1 id="p">新闻管理</h1><br>
<table border="1" style="width:100%; height:100%">
<tr>
<td width="10%" style="text-align:top">
<table border="0" style="width: 100%;height: 100%" >
<tr>
<td><div align="center">新闻信息显示 </div></td>
</tr>
<tr>
<td><img src="./images/dog.jpg" width="100%" height="90%"></td>
</tr>
<tr>
<td><img src="./images/minus.gif" ></td>
</tr>
</table></td>
<td width="50%">
<table border="0">
<tr>
<td>
<% newsrealesedao newsrealesedao = new newsrealesedao();
arraylist newsrealese = newsrealesedao.queryallnews();
%>
<%
for (int i = 0; i < newsrealese.size(); i++) {
newsrealese newrealese = (newsrealese) newsrealese.get(i);
%>
<table border="0" width="100%" id="table">
<tr>
<td width="128"><p>此处假设无图片</p>
<p>此处假设无等级信息</p> </td>
<td ><table border="0" width="100%">
<tr>
<td >原创或转载:</td>
<td ><%=newrealese.getmyother()%> </td>
<td >新闻标题:</td>
<td ><%=newrealese.getheadtitle()%> </td>
</tr>
<tr>
<td colspan="6">新闻内容:</td>
</table>
<table width="100%" border="0">
<tr>
<td>
<a target="_blank" href="newrealese_detail.jsp?newsid=<%=newrealese.getnewsid()%>"/>
<table width="100%" border="0" align="center">
<tr>
<td>
<%=newrealese.getcontent()%> </td>
</tr>
</table> </td>
</tr>
</table>
<table border="0" width="100%">
<tr>
<td width="51" height="30">作者:</td>
<td width="203"><%=newrealese.getauthor()%> </td>
<td width="97">新闻发布时间:</td>
<td width="167"><%=newrealese.getnewstime()%> </td>
<td width="99">新闻点击次数:</td>
<td width="191"><%=newrealese.gethits()%> </td>
</tr>
</table></td>
</tr>
<tr>
<td height="21" colspan="2">
<input type="button" name="delete" value="删除" align="middle"
onclick="javascrtpt:window.location.href = 'deleteonenews?newsid=<%=newrealese.getnewsid()%>'">
<input type="button" name="delete" value="修改" align="middle"
onclick="javascrtpt:window.location.href = 'a_updatenews.jsp?newsid=<%=newrealese.getnewsid()%>'">
<hr> </td>
</tr>
</table>
<%
}
%> </td>
</tr>
</table> </td>
<td width="5%" style=" text-orientation: vertical-right">
<%@include file="a_querynews.jsp" %>
</td>
</tr>
<tr>
<td align="center"><a href="a_addnews.jsp" target="_blank">添加新闻</a></td>
<td align="center">二</td>
<td align="center">三</td>
</tr>
</table>
</body>
</html>
（6）增加新闻页面，命名为a_addnews.jsp，能够进行新闻的增加，在添加完信息之后，我们点击发布之后就可以成功添加信息，其代码如下所示，增加新闻时需要对新闻进行编辑，对于长篇幅新闻内容且含有图片的新闻内容的编写，在这儿我们使用功能强大的百度编辑器，首先从官网下载：百度编辑器下载，下载之后解压(我使用的版本是ueditor1_4_3_2-utf8-jsp)，如下图所示结构
图10 百度富文本编辑器文件夹结构图
然后只需将整个文件夹拷贝到项目下即可，在使用时引入和修改路径，在jsp页面里边我已经配置好引用，只需修改路径即可，修改路径时只需将editor_config.js中查找url变量配置编辑器在你项目中的路径。其中./ueditor为项目中的文件夹
var url= window.ueditor_home_url||"./ueditor/";
这样就配置好了编辑器，下面就是增加新闻的jsp页面，在添加完新闻之后，只需点击发布即可进行新闻的发布操作，代码如下所示：
<%@page contenttype="text/html" import="java.util.*,java.sql.*" pageencoding="utf-8" language="java"%>
<%@page import="com.lut.beans.newsrealese" %>
<%@page import="dao.newsrealesedao" %>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>添加新闻- 新闻发布系统--最前沿的时尚信息、最有看点的社会聚焦、最富得浪漫的殿tang</title>
<!-- 配置文件 -->
<script type="text/javascript" src="./ueditor/ueditor.config.js"></script>
<!-- 编辑器源码文件 -->
<script type="text/javascript" src="./ueditor/ueditor.all.js"></script>
<link rel="stylesheet" type="text/css" href="./udeditor/themes/default/css" />
<link type="text/css" rel="stylesheet" href="newsrealese.css"/>
</head>
<body id="body">
<form action="insertonenews" method="post">
<table border="0" id="table">
<tr>
<td width="5%">left</td>
<td width="90%">
<table border="1" id="table">
<tr >
<td >新闻编号</td> <td><input type="text" name="newsid"></td>
<td>所属新闻栏目编号</td> <td><input type="text" name="classid"></td>
</tr>
<tr>
<td>所属新闻分类编号</td> <td><input type="text" name="kindid"></td>
<td>原创或转载</td> <td><input type="text" name="myother"></td>
</tr>
<tr>
<td>新闻标题</td> <td><input type="text" name="headtitle"></td>
<td>相关文章</td> <td><input type="text" name="connectrealtive"></td>
</tr>
<tr>
<td>作者</td> <td><input type="text" name="author"></td>
<td>编辑</td> <td><input type="text" name="editor"></td>
</tr>
<tr>
<td>出处</td> <td><input type="text" name="newsfrom"></td>
<td>是否置顶</td> <td><input type="text" name="top"></td>
</tr>
<tr>
<td>新闻发布时间</td> <td><input type="text" name="newstime"></td>
<td>新闻点击次数</td> <td><input type="text" name="hits"></td>
</tr>
<tr>
<td>新闻状态</td> <td><input type="text" name="state"></td>
<td>新闻标记</td> <td><input type="text" name="tag"></td>
</tr>
<tr>
</table>
</td>
<td width="5%">right</td>
</tr>
<tr>
<td> </td>
<td>
<div align="center" style="width:80%">
<textarea id="newseditor" name="content" style="height: 80%"></textarea>
<br/>
<input type="submit" value="发 布">
<script type="text/javascript">
ue.geteditor('newseditor');
// var content = ue.getplaintxt();//content就是编辑器的带格式的内容
//focus时自动清空初始化时的内容
</script>
</div>
</td>
<td> </td>
</tr>
</table>
</form>
</body>
</html>
在增加新闻时，需要对servlet进行配置，如下图所示所示为配置文件的结构：
插入数据servlet结构图
下面是inseronenews.java代码，能够进行对数据的插入功能
/*
* to change this license header, choose license headers in project properties.
* to change this template file, choose tools | templates
* and open the template in the editor.
*/
package servlet;
import dao.newsrealesedao;
import java.io.ioexception;
import java.io.printwriter;
import java.util.arraylist;
import java.util.logging.level;
import java.util.logging.logger;
import javax.servlet.servletexception;
import javax.servlet.http.httpservlet;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
public class insertonenews extends httpservlet {
protected void processrequest(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
response.setcontenttype("text/html;charset=utf-8");
try (printwriter out = response.getwriter()) {
arraylist addnews_list = new arraylist();
newsrealesedao newsrealesedao = new newsrealesedao();
addnews_list.add(0, request.getparameter("newsid"));
addnews_list.add(1, request.getparameter("classid"));
addnews_list.add(2, request.getparameter("kindid"));
addnews_list.add(3, request.getparameter("myother"));
addnews_list.add(4, request.getparameter("headtitle"));
addnews_list.add(5, request.getparameter("content"));
addnews_list.add(6, request.getparameter("connectrealtive"));
addnews_list.add(7, request.getparameter("author"));
addnews_list.add(8, request.getparameter("editor"));
addnews_list.add(9, request.getparameter("newsfrom"));
addnews_list.add(10, request.getparameter("top"));
addnews_list.add(11, request.getparameter("newstime"));
addnews_list.add(12, request.getparameter("hits"));
addnews_list.add(13, request.getparameter("state"));
addnews_list.add(14,request.getparameter("tag"));
try {
string newsrealese = newsrealesedao.insertonenews(addnews_list);
system.out.println("string:"+newsrealese);
if (newsrealese!= null) {
response.sendredirect("adminmanager.jsp");
} else {
response.sendredirect("a_addnews.jsp");
}
} catch (exception ex) {
logger.getlogger(checklogin.class.getname()).log(level.severe, null, ex);
}
}
}
@override
protected void doget(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
protected void dopost(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
public string getservletinfo() {
return "short description";
}
}
至此，我们完整的实现了插入工作 （7）现在完成删除操作，在servlet包中建立如下所示代码，命名为deleteonenews.java：
/*
* to change this license header, choose license headers in project properties.
* to change this template file, choose tools | templates
* and open the template in the editor.
*/
package servlet;
import dao.newsrealesedao;
import java.io.ioexception;
import java.io.printwriter;
import java.util.arraylist;
import java.util.logging.level;
import java.util.logging.logger;
import javax.servlet.servletexception;
import javax.servlet.http.httpservlet;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
public class deleteonenews extends httpservlet {
protected void processrequest(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
response.setcontenttype("text/html;charset=utf-8");
try (printwriter out = response.getwriter()) {
string str_id=request.getparameter("newsid");
int newsid_int=integer.valueof(str_id);
newsrealesedao newsrealesedao=new newsrealesedao();
try {
string newsrealese = newsrealesedao.deleteonenews(newsid_int);
system.out.println("string:"+newsrealese);
if (newsrealese!= null) {
response.sendredirect("adminmanager.jsp");
} else {
response.sendredirect("a_addnews.jsp");
}
} catch (exception ex) {
logger.getlogger(checklogin.class.getname()).log(level.severe, null, ex);
}
}
}
@override
protected void doget(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
/**
* handles the http <code>post</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws servletexception if a servlet-specific error occurs
* @throws ioexception if an i/o error occurs
*/
@override
protected void dopost(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
/**
* returns a short description of the servlet.
*
* @return a string containing servlet description
*/
@override
public string getservletinfo() {
return "short description";
}// </editor-fold>
}
(8)实现查询操作，命名为a_querynews.jsp,其代码如下所示：
<%--
document : a_querynews
created on : 2016-5-18, 17:08:40
author : administrator
--%>
<%@page contenttype="text/html" pageencoding="utf-8"%>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>查询页面</title>
</head>
<body>
<table style="width:100%;height:100%" border="0">
<tr>
<td>
<form action="queryonenews" method="post" target="_blank" >
请输入新闻编号：<input type="text" name="query">
<input type="submit" value="查询" ><br>
</form>
<hr></td>
</tr>
<tr>
<td> </td>
</tr>
</table>
</body>
</html>
对于查询这件事，有成功，有失败，在这儿我们进行失败后文件的设置，代码如下所示，命名为a_querynewsfailed.jsp,使用超级连接的方式，连接到主页面
<%--
document : a_queryneesfailed
created on : 2016-6-6, 8:43:35
author : administrator
--%>
<%@page contenttype="text/html" pageencoding="utf-8"%>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>查询失败</title>
</head>
<body>
<h1>没有找到你要查找的内容，但是你可以进入</h1>
<a href="index.html">主页进行查看</a>
</body>
</html>
实现了以上显示层的操作之后，下面就是控制层的实现，命名为queryonenews.java,其代码如下所示：
/*
* to change this license header, choose license headers in project properties.
* to change this template file, choose tools | templates
* and open the template in the editor.
*/
package servlet;
import dao.newsrealesedao;
import java.io.ioexception;
import java.io.printwriter;
import java.util.arraylist;
import java.util.logging.level;
import java.util.logging.logger;
import javax.servlet.servletexception;
import javax.servlet.http.httpservlet;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
public class queryonenews extends httpservlet {
protected void processrequest(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
response.setcontenttype("text/html;charset=utf-8");
try (printwriter out = response.getwriter()) {
string str_id=request.getparameter("query");
int newsid_int=integer.valueof(str_id);
newsrealesedao newsrealesedao=new newsrealesedao();
try {
arraylist newsrealese = newsrealesedao.queryonenews(newsid_int);
char [] s1=newsrealese.tostring().tochararray();
system.out.println("string+newsrealese:"+newsrealese);
system.out.println("string+newsrealese:"+s1[0]+" -------"+s1[1]);
if(s1[0]=='['&&s1[1]==']')
{
response.sendredirect("a_querynewsfailed.jsp");
}
else
{
response.sendredirect("newrealese_detail.jsp?newsid="+str_id);
}
} catch (exception ex) {
logger.getlogger(checklogin.class.getname()).log(level.severe, null, ex);
}
}
}
@override
protected void doget(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
protected void dopost(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
public string getservletinfo() {
return "short description";
}
}
(9)下面实现更新数据的操作，命名为a_updatenews.jsp,其代码如下所示：
<%@page contenttype="text/html" import="java.util.*,java.sql.*" pageencoding="utf-8" language="java"%>
<%@page import="com.lut.beans.newsrealese" %>
<%@page import="dao.newsrealesedao" %>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>更改新闻-</title>
<!-- 配置文件 -->
<script type="text/javascript" src="./ueditor/ueditor.config.js"></script>
<!-- 编辑器源码文件 -->
<script type="text/javascript" src="./ueditor/ueditor.all.js"></script>
<link rel="stylesheet" type="text/css" href="./udeditor/themes/default/css" />
<link type="text/css" rel="stylesheet" href="newsrealese.css"/>
</head>
<body id="body">
<%
newsrealesedao newsrealesedao=new newsrealesedao();
string newsid_s=request.getparameter("newsid");
int news_int=integer.valueof(newsid_s);
arraylist news_list=newsrealesedao.queryonenews(news_int);
%>
<%
for(int i=0;i<news_list.size();i++)
{
newsrealese newrealese=(newsrealese)news_list.get(i);
%>
<form action="updateonenews" method="post">
<table border="0" id="table" style="width:95%">
<tr>
<td width="5%">left</td>
<td width="90%">
<table border="1" id="table" style="width:100%">
<tr >
<tr>
<td >新闻编号</td> <td><input type="text" width="100%" name="newsid" value="<%=newrealese.getnewsid() %>"></td>
<td>所属新闻栏目编号</td> <td><input type="text" width="100%" name="classid" value="<%=newrealese.getclassid() %>"></td>
</tr>
<tr>
<td>所属新闻分类编号</td> <td><input type="text" width="100%" name="kindid" value="<%=newrealese.getkindid() %>"></td>
<td>原创或转载</td> <td><input type="text" width="100%" name="myother" value="<%=newrealese.getmyother() %>"></td>
</tr>
<tr>
<td>新闻标题</td> <td><input type="text" width="100%" name="headtitle" value="<%=newrealese.getheadtitle()%>"></td>
<td>相关文章</td> <td><input type="text" width="100%" name="connectrealtive" value="<%=newrealese.getconnectrealtive()%>"></td>
</tr>
<tr>
<td>作者</td> <td><input type="text" width="100%" name="author" value="<%=newrealese.getauthor() %>"></td>
<td>编辑</td> <td><input type="text" width="100%" name="editor" value="<%=newrealese.geteditor() %>"></td>
</tr>
<tr>
<td>出处</td> <td><input type="text" width="100%" name="newsfrom" value="<%=newrealese.getnewsfrom() %>"></td>
<td>是否置顶</td> <td><input type="text" width="100%" name="top" value="<%=newrealese.gettop() %>"></td>
</tr>
<tr>
<td>新闻发布时间</td> <td><input type="text" width="100%" name="newstime" value="<%=newrealese.getnewstime() %> "></td>
<td>新闻点击次数</td> <td><input type="text" width="100%" name="hits" value="<%=newrealese.gethits() %>"></td>
</tr>
<tr>
<td>新闻状态</td> <td><input type="text" name="state" width="100%" value="<%=newrealese.getstate() %>"></td>
<td>新闻标记</td> <td><input type="text" width="100%" name="tag" value="<%=newrealese.gettag() %>"></td>
</tr>
<tr>
</table>
</td>
<td width="5%">right</td>
</tr>
<tr>
<td> </td>
<td>
<div align="center" style="width:80%">
<textarea id="newseditor" name="content" style="height: 80%"><%=newrealese.getcontent() %></textarea>
<br/>
<input type="submit" value="发 布">
<script type="text/javascript">
ue.geteditor('newseditor');
var content=ue.getplaintxt();//s就是编辑器的带格式的内容
</script>
</div>
</td>
<td> </td>
</tr>
</table>
</form>
<%
}
%>
</body>
</html>
在servlet中进行如下代码所示配置：
/*
* to change this license header, choose license headers in project properties.
* to change this template file, choose tools | templates
* and open the template in the editor.
*/
package servlet;
import dao.newsrealesedao;
import java.io.ioexception;
import java.io.printwriter;
import java.util.arraylist;
import java.util.logging.level;
import java.util.logging.logger;
import javax.servlet.servletexception;
import javax.servlet.http.httpservlet;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
public class updateonenews extends httpservlet {
protected void processrequest(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
response.setcontenttype("text/html;charset=utf-8");
try (printwriter out = response.getwriter()) {
arraylist addnews_list = new arraylist();
newsrealesedao newsrealesedao = new newsrealesedao();
addnews_list.add(0, request.getparameter("newsid"));
addnews_list.add(1, request.getparameter("classid"));
addnews_list.add(2, request.getparameter("kindid"));
addnews_list.add(3, request.getparameter("myother"));
addnews_list.add(4, request.getparameter("headtitle"));
addnews_list.add(5, request.getparameter("content"));
addnews_list.add(6, request.getparameter("connectrealtive"));
addnews_list.add(7, request.getparameter("author"));
addnews_list.add(8, request.getparameter("editor"));
addnews_list.add(9, request.getparameter("newsfrom"));
addnews_list.add(10, request.getparameter("top"));
addnews_list.add(11, request.getparameter("newstime"));
addnews_list.add(12, request.getparameter("hits"));
addnews_list.add(13, request.getparameter("state"));
addnews_list.add(14,request.getparameter("tag"));
try {
string newsrealese = newsrealesedao.updateonenews(addnews_list);
system.out.println("string:"+newsrealese);
if (newsrealese!= null) {
response.sendredirect("adminmanager.jsp");
} else {
response.sendredirect("a_addnews.jsp");
}
} catch (exception ex) {
logger.getlogger(checklogin.class.getname()).log(level.severe, null, ex);
}
}
}
@override
protected void doget(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
protected void dopost(httpservletrequest request, httpservletresponse response)
throws servletexception, ioexception {
processrequest(request, response);
}
@override
public string getservletinfo() {
return "short description";
}
}
到这儿，我们已经实现了对增删改查功能的实现，当然，基本的新闻发布功能已经实现
关于管理系统的更多内容请点击《管理系统专题》进行学习
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