前端项目(练手)+代码封装

2022-11-18 20:45:45 浏览数 (1)

先给大家总的说一下这个项目里面用到了哪些功能吧!后面有代码的解析,整个项目的代码已经进行封装了。

 首先要说的就是登陆和注册页面,其中用到了前面分享的跳转页面和验证码以及toUpperCase()转换。

以上这张图就是登陆后的主页面,这里面用到了网站中常用的分页查询、session对象(后续还会出一章session与cookie的区别)、绑定数据以及基本的增删改查。

上面这张图可以说是相当于一个增删改查的模板,其中用到了文件上传

这个页面是点击主页面中的新闻主题进来的,也就是说当你对某一条新闻感兴趣的时候,你想了解的更详细的,就可以点击进去,并且可以评论参与该新闻的讨论当中,其中用到了文本编辑器 绑定数据。

 这个可以相当于一个游客界面,如果你没登录的话,你可以点击登录注册账号,其中也用到了分页和绑定数据。

以下就是每个页面所对应的代码。

首先我们有四个表,用户表、新闻表、评论表、主题表。每个表都有实体类和方法类(之前出过一章学生管理系统,里面有18个功能,不懂得可以去看看),当你需要用到某个方法的时候就可以直接调用。

登录页面:login.jsp&&dologin.jsp

代码语言:javascript复制
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>用户登录</title>
<link href="../images/login.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
	var str = "qwertyupasdfghjkzxcvbnmQWERTYUPASDFGHJKLZXCVBNM23456789";
	function yz() {
		//随机出4个0-字符串长度之间的数字 做为下标
		yzmStr="";
		for(var i=1;i<=4;i  ){
			yzmStr =str.substr(Math.round(Math.random()*(str.length-1)),1);
		}
		//把验证码赋值到页面
		document.getElementById("syzm").innerHTML=yzmStr;
	}
	function $(id) {
		return document.getElementById(id);
	}
	function login_yz() {
		//验证 用户名 和 密码不能为空 
		//获取用户名
		var uname = $("uname").value;	
		if(uname.length==0){
			alert("用户名不能为空");
			return false;
		}
		//获取密码
		var upwd = $("upwd").value;
		if(upwd.length==0){
			alert("密码不能为空");
			return false;
		}
		//获取验证码:判断和电脑的验证码是否相等
		//PS:自己实现-输入的验证码不区分大小写-大小写转换
		var yzm = $("uyzm").value;
		//yzm.lower();
		var str1=yzm.toUpperCase();
		//alert(str1);
		var str2=yzmStr.toUpperCase();
		if(str1!=str2){
			alert("验证码输入错误,请重新输入");
			//清空输入的验证码
			$("uyzm").value="";
			//重新生成验证码
			yz();
			return false;
		}
	}
</script>
</head>
<body>
<body onload="yz()">
	<div id="login">
		<div id="top">
			<div id="top_left">
				<img src="../images/login_03.gif" />
			</div>
			<div id="top_center"></div>
		</div>
		<div id="center">
			<div id="center_left"></div>
			<div id="center_middle">
			<form action="dologin.jsp" onsubmit="return login_yz()">
				<div id="user">
					用 户 <input type="text" id="uname" name="textfield" />
				</div>
				<div id="password">
					密 码 <input type="password" id="upwd" name="textfield2" />
				</div>
				<div id="yzm">
					验证码 <input id="uyzm" style="width: 50px;" type="text" name="textfield3" />
					<span id="syzm" onclick="yz()"></span>
				</div>
				<div id="btn">
					<input type="submit" value="登录">
					<!-- <input type="reset" value="清空"> -->
					<input type="button" value="注册" onclick="javascript:location.href='register.jsp'">	
				</div>
			</form>
			</div>
			<div id="center_right"></div>
		</div>
		<div id="down">
			<div id="down_left">
				<div id="inf">
					<span class="inf_text">版本信息</span> <span class="copyright">管理信息系统
						2008 v2.0</span>
				</div>
			</div>
			<div id="down_center"></div>
		</div>
 
	</div>
</body>
</html>
代码语言:javascript复制
<%@page import="com.zking.dao.T277Dao"%>
<%@page import="com.zking.entity.T277"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.Connection"%>
<%@page import="java.sql.DriverManager"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<% 
	//乱码
	request.setCharacterEncoding("utf-8");
	String uname = request.getParameter("textfield");
	String jks=request.getParameter("jk");
	int jk=0;
	String upwd = request.getParameter("textfield2");
	T277Dao t=new T277Dao();
	T277 T=t.login(uname, upwd);
	if(T!=null){//成功就跳转到主页面
			session.setAttribute("a", T);
			request.getRequestDispatcher("admin.jsp").forward(request, response);
	}else{//错误就回到登录页面
			out.print("<script>alert('用户名或密码错误,请重新登录');location.href='login.jsp'</script>");
		}
%>

注册页面:register.jsp&&doregister.jsp

代码语言:javascript复制
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>用户注册</title>
<style>
 #a {
    width:50%;
    height:200px;
    border: 1px dashed ;
    background-color:lightyellow;
    text-align:center;
}
body{
background-color:lightblue;
}
</style>
</head>
<body>
	<form action="doregister.jsp" method="post">
		用户名:<input type="text" name="uname"><br>
		密码:<input type="password" name="upwd"><br>
		备注:<textarea rows="" cols="" name="uinfo">
		</textarea><br>
		<input type="submit" value="注册">
		<input type="reset" value="重置">
	</form>
</body>
</html>
代码语言:javascript复制
<%@page import="com.zking.dao.T277Dao"%>
<%@page import="com.zking.entity.T277"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
	//设置编码-设置请求对象的编号
	request.setCharacterEncoding("utf-8");
	//接收注册页面传递的数据
	String uname = request.getParameter("textfield");
	String upwd = request.getParameter("textfield2");
	String uinfo = request.getParameter("uinfo");
	T277 ss=new T277(uname,upwd,uinfo);
	T277Dao df=new T277Dao();
	//执行sql语句
	int i = df.register(ss);
	if(i>0){
		out.print("<script>alert('注册成功');location.href='login.jsp'</script>");
	}else{
		out.print("<script>alert('注册失败');location.href='register.jsp'</script>");
	}
%>

主页面:admin.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.News"%>
<%@page import="java.util.ArrayList"%>
<%@page import="com.zking.dao.NewsDao"%>
<%@page import="com.zking.entity.T277"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>添加主题--管理后台</title>
<link href="../CSS/admin.css" rel="stylesheet" type="text/css" />
</head>
<body>
<%
	//判断用户是不是为空
	Object obj = session.getAttribute("a");
	if(obj==null){
		out.print("<script>alert('你没有登录,请先登录');location.href='login.jsp'</script>");
	}
%>
<div id="header">
  <div id="welcome">欢迎使用新闻管理系统!</div>
  <div id="nav">
    <div id="logo"><img src="../images/logo.jpg" alt="新闻中国" /></div>
    <div id="a_b01"><img src="../images/a_b01.gif" alt="" /></div>
  </div>
</div>
<div id="admin_bar">
  <div id="status">管理员: <%=((T277)session.getAttribute("a")).getUname() %>  &#160;&#160;&#160;&#160; <a href="login.jsp">login out</a></div>
  <div id="channel"> </div>
</div>
<div id="main">
  <div id="opt_list">
    <ul>
      <li><a href="add_news.jsp">添加新闻</a></li>
      <li><a href="admin.jsp">查找新闻</a></li>
      <li><a href="add_sub.jsp">添加主题</a></li>
      <li><a href="update_sub.jsp">修改主题</a></li>
      <li><a href="del_sub.jsp">删除主题</a></li>
    </ul>
  </div>
  <div id="opt_area">
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <script language="javascript">
	function clickdel(){
		return confirm("删除请点击确认");
	}
</script>
	<form action="admin.jsp" align="center">
		<input type="text" name="str">
		<input type="submit" value="查询">
	</form>
    <ul class="classlist">
    	<%
    		//获取模糊查询的关键字
    		String str = request.getParameter("str");
    		if(str==null){
    			str = "";
    		}
    		int pageIndex = 1;//页码
    		//接收页码
    		String index = request.getParameter("pageIndex");
    		if(index!=null){//如果接收到页面,就给页面pageIndex赋值
    			pageIndex = Integer.valueOf(index);
    		}
    		int pageSize = 5;//每页的数据条数,每页5条数据
    		
    		//实例化 NewsDao
    		NewsDao nd = new NewsDao();
    		int maxPage = nd.getMaxPage(pageSize,str);//调用求 最大页面方法 获取最大页面
    		//调用分页查询方法
    		ArrayList<News> nlist = nd.pagelikeNews(pageIndex, pageSize, str);
			
    		//遍历集合
    		for(News n:nlist){
    	%>
      <li>
      	<a href="read_news.jsp?nid=<%=n.getNid()%>">
      		<%=n.getNtitle() %>
      	</a>
      <span> 作者:
        <%=n.getNzz() %> &#160;&#160;&#160;&#160; 
        <a href='update_news.jsp?nid=<%=n.getNid()%>'>修改</a> &#160;&#160;&#160;&#160; 
        <a href='dodel_news.jsp?nid=<%=n.getNid()%>' onclick='return clickdel()'>删除</a> </span> </li>
      <li class='space'></li>
      <%} %>
      <p align="right"> 
      		<a href="admin.jsp<%
      				if(str!=null){
      	      			out.print("?str=" str);
      	      		}
      		%>">首页</a> <a href="admin.jsp?pageIndex=<%=pageIndex>1?pageIndex-1:1%><%
      				if(str!=null){
      	      			out.print("&str=" str);
      	      		}
      		%>">上一页</a>
      		&nbsp;当前页数:[<%=pageIndex %>/<%=maxPage %>]&nbsp; 
      		<a href="admin.jsp?pageIndex=<%=pageIndex<maxPage?pageIndex 1:maxPage%><%
      		if(str!=null){
      			out.print("&str=" str);
      		}
      		%>">下一页</a> 
      		<a href="admin.jsp?pageIndex=<%=maxPage%><%
      				if(str!=null){
      	      			out.print("&str=" str);
      	      		}
      		%>">末页</a> 
       </p>
    </ul>
  </div>
</div>
<div id="site_link"> <a href="#">关于我们</a><span>|</span> <a href="#">Aboue Us</a><span>|</span> <a href="#">联系我们</a><span>|</span> <a href="#">广告服务</a><span>|</span> <a href="#">供稿服务</a><span>|</span> <a href="#">法律声明</a><span>|</span> <a href="#">招聘信息</a><span>|</span> <a href="#">网站地图</a><span>|</span> <a href="#">留言反馈</a> </div>
<div id="footer">
  <p class="">24小时客户服务热线:010-68988888  &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160;  新闻热线:010-627488888<br />
    文明办网文明上网举报电话:010-627488888  &#160;&#160;&#160;&#160;  举报邮箱:<a href="#">jubao@jb-aptech.com.cn</a></p>
  <p class="copyright">Copyright &copy; 1999-2009 News China gov, All Right Reserver<br />
    新闻中国   版权所有</p>
</div>
</body>
</html>

添加新闻:add_news.jsp&&doadd_news.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.T277"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>添加新闻--管理后台</title>
<link href="../CSS/admin.css" rel="stylesheet" type="text/css" />
</head>
<body>
<%
	//判断用户是不是为空
	Object obj = session.getAttribute("a");
	if(obj==null){
		out.print("<script>alert('你没有登录,请先登录');location.href='login.jsp'</script>");
	}
%>
<div id="header">
  <div id="welcome">欢迎使用新闻管理系统!</div>
  <div id="nav">
    <div id="logo"><img src="../images/logo.jpg" alt="新闻中国" /></div>
    <div id="a_b01"><img src="../images/a_b01.gif" alt="" /></div>
  </div>
</div>
<div id="admin_bar">
   <div id="status">管理员: <%=((T277)session.getAttribute("a")).getUname() %>  &#160;&#160;&#160;&#160; <a href="login.jsp">login out</a></div>
  <div id="channel"> </div>
</div>
<div id="main">
  <div id="opt_list">
    <ul>
      <li><a href="add_news.jsp">添加新闻</a></li>
      <li><a href="admin.jsp">查找新闻</a></li>
      <li><a href="add_sub.jsp">添加主题</a></li>
      <li><a href="update_sub.jsp">修改主题</a></li>
       <li><a href="del_sub.jsp">删除主题</a></li>
    </ul>
  </div>
  <div id="opt_area">
    <h1 id="opt_type"> 添加新闻: </h1>
    <form action="doadd_news.jsp" enctype="multipart/form-data" method="post">
      <p>
        <label> 主题 </label>
        <select name="ntid">
         <%
         Class.forName("oracle.jdbc.driver.OracleDriver");
 		//2、连接数据库
 		String url = "jdbc:oracle:thin:@localhost:1521:ORCL";
 		Connection con = DriverManager.getConnection(url, "scott", "tiger");
 		//3、定义那个对象,用来执行sql语句
 		PreparedStatement ps = con.prepareStatement("select * from subject");
 		ResultSet rs=ps.executeQuery();
 		while(rs.next()){
 			%>
 			<option value="<%=rs.getInt(1)%>"><%=rs.getString(2) %></option>
 		}
         <% }%>
        </select>
      </p>
      <p>
        <label> 标题 </label>
        <input name="ntitle" type="text" class="opt_input" />
      </p>
      <p>
        <label> 作者 </label>
        <input name="nauthor" type="text" class="opt_input" />
      </p>
      <p>
        <label> 摘要 </label>
        <textarea name="nsummary" cols="40" rows="3"></textarea>
      </p>
      <p>
        <label> 内容 </label>
        <textarea name="ncontent" cols="70" rows="10"></textarea>
      </p>
      <p>
        <label> 上传图片 </label>
        <input name="file" type="file" class="opt_input" />
      </p>
      <input name="action" type="hidden" value="addnews">
      <input type="submit" value="提交" class="opt_sub" />
      <input type="reset" value="重置" class="opt_sub" />
    </form>
  </div>
</div>
<div id="site_link"> <a href="#">关于我们</a><span>|</span> <a href="#">Aboue Us</a><span>|</span> <a href="#">联系我们</a><span>|</span> <a href="#">广告服务</a><span>|</span> <a href="#">供稿服务</a><span>|</span> <a href="#">法律声明</a><span>|</span> <a href="#">招聘信息</a><span>|</span> <a href="#">网站地图</a><span>|</span> <a href="#">留言反馈</a> </div>
<div id="footer">
  <p class="">24小时客户服务热线:010-68988888  &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160;  新闻热线:010-627488888<br />
    文明办网文明上网举报电话:010-627488888  &#160;&#160;&#160;&#160;  举报邮箱:<a href="#">jubao@jb-aptech.com.cn</a></p>
  <p class="copyright">Copyright &copy; 1999-2009 News China gov, All Right Reserver<br />
    新闻中国   版权所有</p>
</div>
</body>
</html>
代码语言:javascript复制
<%@page import="com.zking.dao.NewsDao"%>
<%@page import="com.zking.entity.News"%>
<%@page import="com.jspsmart.upload.Request"%>
<%@page import="com.jspsmart.upload.SmartUpload"%>
<%@page import="com.jspsmart.upload.File"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	//创建SmartUpload对象
	SmartUpload su = new SmartUpload();
	//初始化
	su.initialize(pageContext);
	//声明一个File对象 用来接收上传的文件
	File file = null;
	//设置允许上传的文件类型
	su.setAllowedFilesList("jpg,png,gif,jpeg");
	//设置不允许上传的文件类型
	su.setDeniedFilesList("bat,exe,mp4");
	//设置单文件大小
	su.setMaxFileSize(80000);
	//设置总文件大小
	su.setTotalMaxFileSize(90000);
	//设置编码
	su.setCharset("utf-8");
	//开始上传
	su.upload();	
	//获取文件集合中的第一个文件
	file = su.getFiles().getFile(0);
	String filePath = "";
	if(!file.isMissing()){
		//拼接文件上传到服务器的 路径
		filePath ="onload/" file.getFileName();
		//上传到服务器 保存到指定路径
		file.saveAs(filePath,SmartUpload.SAVE_VIRTUAL);
	}
	
	Request req = su.getRequest();
	request.setCharacterEncoding("utf-8");
	response.setCharacterEncoding("utf-8");

//接受添加界面的数据
int tid=Integer.valueOf(req.getParameter("ntid"));
String ntitle=req.getParameter("ntitle");
String nzz=req.getParameter("nauthor");
String nzy=req.getParameter("nsummary");
String nnr=req.getParameter("ncontent");
News x=new News(tid,ntitle,nzz,nzy,nnr,filePath);
NewsDao cs=new NewsDao();
int i=cs.addNews(x);
	if(i>0){
		out.print("<script>alert('添加成功');location.href='admin.jsp'</script>");
	}else{
		out.print("<script>alert('添加失败');location.href='add_news.jsp'</script>");
	}
%>

添加主题:add_sub.jsp&&doadd_sub.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.T277"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>添加主题--管理后台</title>
<link href="../CSS/admin.css" rel="stylesheet" type="text/css" />
</head>
<body>
<%
	//判断用户是不是为空
	Object obj = session.getAttribute("a");
	if(obj==null){
		out.print("<script>alert('你没有登录,请先登录');location.href='login.jsp'</script>");
	}
%>
<div id="header">
  <div id="welcome">欢迎使用新闻管理系统!</div>
  <div id="nav">
    <div id="logo"><img src="../images/logo.jpg" alt="新闻中国" /></div>
    <div id="a_b01"><img src="../images/a_b01.gif" alt="" /></div>
  </div>
</div>
<div id="admin_bar">
 <div id="status">管理员:  <%=((T277)session.getAttribute("a")).getUname() %>  &#160;&#160;&#160;&#160; <a href="login.jsp">login out</a></div>
  <div id="channel"> </div>
</div>
<div id="main">
  <div id="opt_list">
    <ul>
       <li><a href="add_news.jsp">添加新闻</a></li>
      <li><a href="admin.jsp">查找新闻</a></li>
      <li><a href="add_sub.jsp">添加主题</a></li>
      <li><a href="update_sub.jsp">修改主题</a></li>
       <li><a href="del_sub.jsp">删除主题</a></li>
    </ul>
  </div>
  <div id="opt_area">
    <h1 id="opt_type"> 添加主题: </h1>
    <form action="doadd_sub.jsp" method="post">
      <p>
        <label> 主题: </label>
        <input name="nauthor" type="text" class="opt_input" />
      </p>
      <input name="action" type="hidden" value="addnews">
      <input type="submit" value="提交" class="opt_sub" />
      <input type="reset" value="重置" class="opt_sub" />
    </form>
  </div>
</div>
<div id="site_link"> <a href="#">关于我们</a><span>|</span> <a href="#">Aboue Us</a><span>|</span> <a href="#">联系我们</a><span>|</span> <a href="#">广告服务</a><span>|</span> <a href="#">供稿服务</a><span>|</span> <a href="#">法律声明</a><span>|</span> <a href="#">招聘信息</a><span>|</span> <a href="#">网站地图</a><span>|</span> <a href="#">留言反馈</a> </div>
<div id="footer">
  <p class="">24小时客户服务热线:010-68988888  &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160;  新闻热线:010-627488888<br />
    文明办网文明上网举报电话:010-627488888  &#160;&#160;&#160;&#160;  举报邮箱:<a href="#">jubao@jb-aptech.com.cn</a></p>
  <p class="copyright">Copyright &copy; 1999-2009 News China gov, All Right Reserver<br />
    新闻中国   版权所有</p>
</div>
</body>
</html>
代码语言:javascript复制
<%@page import="com.zking.dao.SubjectDao"%>
<%@page import="com.zking.entity.Subject"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	//客户端乱码
	request.setCharacterEncoding("utf-8");
	String nauthor=request.getParameter("nauthor");
	Subject sd=new Subject(nauthor);
	SubjectDao ff=new SubjectDao();
	int i=ff.addsubj(sd);
	if(i>0){
		out.print("<script>alert('添加成功');location.href='admin.jsp'</script>");
	}else{
		out.print("<script>alert('添加失败');location.href='add_sub.jsp'</script>");
	}
%>

修改新闻:update_news.jsp&&doupdate_news.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.Subject"%>
<%@page import="java.util.ArrayList"%>
<%@page import="com.zking.dao.SubjectDao"%>
<%@page import="com.zking.entity.News"%>
<%@page import="com.zking.dao.NewsDao"%>
<%@page import="com.zking.entity.T277"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>修改新闻--管理后台</title>
<link href="../CSS/admin.css" rel="stylesheet" type="text/css" />
</head>
<body>
<%
	//判断用户是不是为空
	Object obj = session.getAttribute("a");
	if(obj==null){
		out.print("<script>alert('你没有登录,请先登录');location.href='login.jsp'</script>");
	}
%>
<div id="header">
  <div id="welcome">欢迎使用新闻管理系统!</div>
  <div id="nav">
    <div id="logo"><img src="../images/logo.jpg" alt="新闻中国" /></div>
    <div id="a_b01"><img src="../images/a_b01.gif" alt="" /></div>
  </div>
</div>
<div id="admin_bar">
  <div id="status">管理员:  <%=((T277)session.getAttribute("a")).getUname() %>  &#160;&#160;&#160;&#160; <a href="login.jsp">login out</a></div>
  <div id="channel"> </div>
</div>
<div id="main">
  <div id="opt_list">
    <ul>
      <li><a href="add_news.jsp">添加新闻</a></li>
      <li><a href="admin.jsp">查找新闻</a></li>
      <li><a href="add_sub.jsp">添加主题</a></li>
      <li><a href="update_sub.jsp">修改主题</a></li>
      <li><a href="del_sub.jsp">删除主题</a></li>
    </ul>
  </div>
  <div id="opt_area">
    <h1 id="opt_type"> 修改新闻: </h1>
    <%
    int s=Integer.valueOf(request.getParameter("nid"));
    NewsDao fd=new NewsDao();
    News w=new News();
    w=fd.getds(s);
    if(w!=null){
 		%>
    <form action="doupdate_news.jsp?nid=<%=request.getParameter("nid")%>&ntid=<%=request.getParameter("ntid") %>" enctype="multipart/form-data" method="post">
      <p>
        <label> 主题 </label>
        <select name="ntid">
         <%
         SubjectDao ds=new SubjectDao();
         ArrayList<Subject> lijkd=ds.getAll();
 		for(Subject m:lijkd){
 			%>
 			<option value="<%=m.getTid()%>"
 			<%
 			if(m.getTid()==w.getTid()){
 				out.print("selected='selected'");
 			}
 			%>
 			>
 			<%=m.getTname() %></option>
 		
         <% }%>
        </select>
      </p>
      <p>
        <label> 标题 </label>
        <input name="ntitle" type="text" class="opt_input" value="<%=w.getNtitle()%>"/>
      </p>
      <p>
        <label> 作者 </label>
        <input name="nauthor" type="text" class="opt_input" value="<%=w.getNzz() %>" />
      </p>
      <p>
        <label> 摘要 </label>
        <textarea name="nsummary" cols="40" rows="3">
        <%=w.getNzy() %>
        </textarea>
      </p>
      <p>
        <label> 内容 </label>
        <textarea name="ncontent" cols="70" rows="10"><%=w.getNnr() %>
        </textarea>
      </p>
      <p>
        <label> 上传图片 </label>
        <input name="file" type="file" class="opt_input" value="<%=w.getNimage()%>"/>
      </p>
      <input name="action" type="hidden" value="addnews">
      <input type="submit" value="修改" class="opt_sub" />
      <input type="reset" value="重置" class="opt_sub" />
    </form>
    <% }%>
  </div>
</div>
<div id="site_link"> <a href="#">关于我们</a><span>|</span> <a href="#">Aboue Us</a><span>|</span> <a href="#">联系我们</a><span>|</span> <a href="#">广告服务</a><span>|</span> <a href="#">供稿服务</a><span>|</span> <a href="#">法律声明</a><span>|</span> <a href="#">招聘信息</a><span>|</span> <a href="#">网站地图</a><span>|</span> <a href="#">留言反馈</a> </div>
<div id="footer">
  <p class="">24小时客户服务热线:010-68988888  &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160;  新闻热线:010-627488888<br />
    文明办网文明上网举报电话:010-627488888  &#160;&#160;&#160;&#160;  举报邮箱:<a href="#">jubao@jb-aptech.com.cn</a></p>
  <p class="copyright">Copyright &copy; 1999-2009 News China gov, All Right Reserver<br />
    新闻中国   版权所有</p>
</div>
</body>
</html>
代码语言:javascript复制
<%@page import="com.zking.entity.News"%>
<%@page import="com.zking.dao.NewsDao"%>
<%@page import="com.jspsmart.upload.Request"%>
<%@page import="com.jspsmart.upload.File"%>
<%@page import="com.jspsmart.upload.SmartUpload"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	//创建SmartUpload对象
	SmartUpload su = new SmartUpload();
	//初始化
	su.initialize(pageContext);
	//声明一个File对象 用来接收上传的文件
	File file = null;
	//设置允许上传的文件类型
	su.setAllowedFilesList("jpg,png,gif,jpeg");
	//设置不允许上传的文件类型
	su.setDeniedFilesList("bat,exe,mp4");
	//设置单文件大小
	su.setMaxFileSize(800000);
	//设置总文件大小
	su.setTotalMaxFileSize(9000000);
	//设置编码
	su.setCharset("utf-8");
	//开始上传
	su.upload();	
	//获取文件集合中的第一个文件
	file = su.getFiles().getFile(0);
	String filePath = "";
	if(!file.isMissing()){
		//拼接文件上传到服务器的 路径
		filePath ="onload/" file.getFileName();
		//上传到服务器 保存到指定路径
		file.saveAs(filePath,SmartUpload.SAVE_VIRTUAL);
	}
	
	Request req = su.getRequest();
	request.setCharacterEncoding("utf-8");
	response.setCharacterEncoding("utf-8");

//接受添加界面的数据
int nid=Integer.valueOf(request.getParameter("nid"));
int tid=Integer.valueOf(req.getParameter("ntid"));
String ntitle=req.getParameter("ntitle");
String nzz=req.getParameter("nauthor");
String nzy=req.getParameter("nsummary");
String nnr=req.getParameter("ncontent");
String nimage=req.getParameter("file");
NewsDao sd=new NewsDao();
News news=new News(tid,ntitle,nzz,nzy,nnr,nimage);
int i=sd.upNews(nid, news);
	if(i>0){
		out.print("<script>alert('修改成功');location.href='admin.jsp'</script>");
	}else{
		out.print("<script>alert('修改失败');location.href='update_news.jsp?nid=" nid "'</script>");
	}
%>

修改主题:update_sub.jsp&&doupdate_sub.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.Subject"%>
<%@page import="java.util.ArrayList"%>
<%@page import="com.zking.dao.SubjectDao"%>
<%@page import="com.zking.entity.T277"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>修改主题--管理后台</title>
<link href="../CSS/admin.css" rel="stylesheet" type="text/css" />
</head>
<body>
<%
	//判断用户是不是为空
	Object obj = session.getAttribute("a");
	if(obj==null){
		out.print("<script>alert('你没有登录,请先登录');location.href='login.jsp'</script>");
	}
%>
<div id="header">
  <div id="welcome">欢迎使用新闻管理系统!</div>
  <div id="nav">
    <div id="logo"><img src="../images/logo.jpg" alt="新闻中国" /></div>
    <div id="a_b01"><img src="../images/a_b01.gif" alt="" /></div>
  </div>
</div>
<div id="admin_bar">
   <div id="status">管理员: <%=((T277)session.getAttribute("a")).getUname() %>  &#160;&#160;&#160;&#160; <a href="../login.jsp">login out</a></div>
  <div id="channel"> </div>
</div>
<div id="main">
  <div id="opt_list">
    <ul>
     <li><a href="add_news.jsp">添加新闻</a></li>
      <li><a href="admin.jsp">查找新闻</a></li>
      <li><a href="add_sub.jsp">添加主题</a></li>
      <li><a href="update_sub.jsp">修改主题</a></li>
       <li><a href="del_sub.jsp">删除主题</a></li>
    </ul>
  </div>
  <div id="opt_area">
    <h1 id="opt_type"> 修改主题: </h1>
    <form action="doupdate_sub.jsp" method="post">
      <p>
        <label> 主题: </label>
        <select name="ntid">
         <%
         SubjectDao fd=new SubjectDao();
         ArrayList<Subject>li=fd.getAll();
 		for(Subject c:li){
 				%>
 				<option value="<%=c.getTid()%>"><%=c.getTname() %></option>
       	  <% }%>
        </select>
        <input name="nauthor" type="text" class="opt_input" />
      </p>
      <input name="action" type="hidden" value="addnews">
      <input type="submit" value="修改" class="opt_sub" />
      <input type="reset" value="重置" class="opt_sub" />
    </form>
  </div>
</div>
<div id="site_link"> <a href="#">关于我们</a><span>|</span> <a href="#">Aboue Us</a><span>|</span> <a href="#">联系我们</a><span>|</span> <a href="#">广告服务</a><span>|</span> <a href="#">供稿服务</a><span>|</span> <a href="#">法律声明</a><span>|</span> <a href="#">招聘信息</a><span>|</span> <a href="#">网站地图</a><span>|</span> <a href="#">留言反馈</a> </div>
<div id="footer">
  <p class="">24小时客户服务热线:010-68988888  &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160;  新闻热线:010-627488888<br />
    文明办网文明上网举报电话:010-627488888  &#160;&#160;&#160;&#160;  举报邮箱:<a href="#">jubao@jb-aptech.com.cn</a></p>
  <p class="copyright">Copyright &copy; 1999-2009 News China gov, All Right Reserver<br />
    新闻中国   版权所有</p>
</div>
</body>
</html>
代码语言:javascript复制
<%@page import="com.zking.dao.SubjectDao"%>
<%@page import="com.zking.entity.Subject"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	request.setCharacterEncoding("utf-8");
	int tid=Integer.valueOf(request.getParameter("ntid"));
	String nauthor=request.getParameter("nauthor");
	Subject dd=new Subject(nauthor);
	SubjectDao df=new SubjectDao();
	int i=df.update(dd, tid);
	if(i>0){
		out.print("<script>alert('修改成功');location.href='admin.jsp'</script>");
	}else{
		out.print("<script>alert('修改失败');location.href='update_sub.jsp'</script>");
	}
%>

删除主题:del_sub.jsp&&dodel_sub.jsp

代码语言:javascript复制
<%@page import="java.util.ArrayList"%>
<%@page import="com.zking.entity.Subject"%>
<%@page import="com.zking.dao.SubjectDao"%>
<%@page import="com.zking.entity.T277"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>删除主题--管理后台</title>
<link href="../CSS/admin.css" rel="stylesheet" type="text/css" />
</head>
<body>
<%
	//判断用户是不是为空
	Object obj = session.getAttribute("a");
	if(obj==null){
		out.print("<script>alert('你没有登录,请先登录');location.href='login.jsp'</script>");
	}
%>
<div id="header">
  <div id="welcome">欢迎使用新闻管理系统!</div>
  <div id="nav">
    <div id="logo"><img src="../images/logo.jpg" alt="新闻中国" /></div>
    <div id="a_b01"><img src="../images/a_b01.gif" alt="" /></div>
  </div>
</div>
<div id="admin_bar">
   <div id="status">管理员:  <%=((T277)session.getAttribute("a")).getUname() %>  &#160;&#160;&#160;&#160; <a href="login.jsp">login out</a></div>
  <div id="channel"> </div>
</div>
<div id="main">
  <div id="opt_list">
    <ul>
       <li><a href="add_news.jsp">添加新闻</a></li>
      <li><a href="admin.jsp">查找新闻</a></li>
      <li><a href="add_sub.jsp">添加主题</a></li>
      <li><a href="update_sub.jsp">修改主题</a></li>
       <li><a href="del_sub.jsp">删除主题</a></li>
    </ul>
  </div>
  <div id="opt_area">
    <h1 id="opt_type"> 删除主题: </h1>
    <form action="dodel_sub.jsp" method="post" onsubmit='return clickdel()'>
    <script language="javascript">
	function clickdel(){
		return confirm("删除请点击确认");
	}
</script>
      <p>
        <label> 主题: </label>
        <select name="ntid">
         <%
         SubjectDao sd=new SubjectDao();
         ArrayList<Subject> vc=sd.getAll();
         for(Subject xz:vc){
 			%>
 			<option value="<%=xz.getTid()%>"><%=xz.getTname() %></option>
         <%}%>
        </select>
      </p>
      <input name="action" type="hidden" value="addnews">
      <input type="submit" value="删除" class="opt_sub" />
      <input type="reset" value="重置" class="opt_sub" />
    </form>
  </div>
</div>
<div id="site_link"> <a href="#">关于我们</a><span>|</span> <a href="#">Aboue Us</a><span>|</span> <a href="#">联系我们</a><span>|</span> <a href="#">广告服务</a><span>|</span> <a href="#">供稿服务</a><span>|</span> <a href="#">法律声明</a><span>|</span> <a href="#">招聘信息</a><span>|</span> <a href="#">网站地图</a><span>|</span> <a href="#">留言反馈</a> </div>
<div id="footer">
  <p class="">24小时客户服务热线:010-68988888  &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160;  新闻热线:010-627488888<br />
    文明办网文明上网举报电话:010-627488888  &#160;&#160;&#160;&#160;  举报邮箱:<a href="#">jubao@jb-aptech.com.cn</a></p>
  <p class="copyright">Copyright &copy; 1999-2009 News China gov, All Right Reserver<br />
    新闻中国   版权所有</p>
</div>
</body>
</html>
代码语言:javascript复制
<%@page import="com.zking.entity.Subject"%>
<%@page import="com.zking.dao.SubjectDao"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	//乱码
	request.setCharacterEncoding("utf-8");
	String id=request.getParameter("ntid");
	int snid=Integer.valueOf(id);
	SubjectDao dd=new SubjectDao();
	int i=dd.dele(snid);
	if(i>0){
		out.print("<script>alert('删除成功');location.href='admin.jsp'</script>");
	}else{
		out.print("<script>alert('删除失败');location.href='del_sub.jsp'</script>");
	}
%>

删除新闻:dodel_news.jsp

代码语言:javascript复制
<%@page import="com.zking.dao.NewsDao"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	//乱码
	request.setCharacterEncoding("utf-8");
	String id=request.getParameter("nid");
	int snid=Integer.valueOf(id);
	NewsDao dd=new NewsDao();
	int i=dd.delete(snid);
	if(i>0){
		out.print("<script>alert('删除成功');location.href='admin.jsp'</script>");
	}else{
		out.print("<script>alert('删除失败');location.href='admin.jsp'</script>");
	}
%>

阅读新闻:read_news.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.T277"%>
<%@page import="com.zking.entity.Ptext"%>
<%@page import="com.zking.dao.PtextDao"%>
<%@page import="com.zking.entity.News"%>
<%@page import="java.util.ArrayList"%>
<%@page import="com.zking.dao.NewsDao"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@taglib prefix="fc" uri="http://java.fckeditor.net" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>新闻中国</title>
<link href="../CSS/read.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
			function clickdel(){
				return confirm("删除请点击确认");
			}
	  		function check(){
	  			var cauthor = document.getElementById("cauthor");
	  			var content = document.getElementById("ccontent");
	  			if(cauthor.value == ""){
	  				alert("用户名不能为空!!");
	  				return false;
	  			}else if(content.value == ""){
	  				alert("评论内容不能为空!!");
	  				return false;
	  			}
	  			return true;
	  		}
	  	</script>
</head>
<body>
<%
	//判断用户是不是为空
	Object obj = session.getAttribute("a");
	if(obj==null){
		out.print("<script>alert('你没有登录,请先登录');location.href='login.jsp'</script>");
	}
%>
<div id="header">
  <div id="top_login">
    <label> 登录名 </label>
    <input type="text" id="uname" value="" class="login_input" />
    <label> 密&#160;&#160;码 </label>
    <input type="password" id="upwd" value="" class="login_input" />
    <input type="button" class="login_sub" value="登录" onclick="login()"/>
    <label id="error"> </label>
    <a href="admin.jsp" class="login_link">返回后台</a> <img src="../images/friend_logo.gif" alt="Google" id="friend_logo" />
    <a href="index.jsp" class="login_link">返回首页</a> <img src="../images/friend_logo.gif" alt="Google" id="friend_logo" /> </div>
  <div id="nav">
    <div id="logo"> <img src="../images/logo.jpg" alt="新闻中国" /> </div>
    <div id="a_b01"> <img src="../images/a_b01.gif" alt="" /> </div>
    <!--mainnav end-->
  </div>
</div>
<div id="container">
  <div class="sidebar">
    <h1> <img src="../images/title_1.gif" alt="国内新闻" /> </h1>
    <div class="side_list">
      <ul>
      <%
      //实例化一个subjectDao对象
      NewsDao dds=new NewsDao();
      ArrayList<News> wdw=dds.getAll(1);
    //遍历集合
    for(News n:wdw){
      %>
        <li> <a href='read_news.jsp?nid=<%=n.getTid()%>'><b><%=n.getNtitle() %></b></a> </li>
      <%} %>
      </ul>
    </div>
    <h1> <img src="../images/title_2.gif" alt="国际新闻" /> </h1>
    <div class="side_list">
      <ul>
      <% 
      //实例化NewsDao 
      NewsDao dd=new NewsDao();
      ArrayList<News> hh=dd.getAll(2);
	for(News v:hh){
  	%>
        <li> <a href='read_news.jsp?nid=<%=v.getNid()%>'><b><%=v.getNtitle() %></b></a> </li>
      <%} %>
      </ul>
    </div>
    <h1> <img src="../images/title_3.gif" alt="娱乐新闻" /> </h1>
    <div class="side_list">
      <ul>
          <% 
      ArrayList<News> sb=dd.getAll(5);
          for(News v:sb){
  	%>
        <li> <a href='read_news.jsp?nid=<%=v.getNid()%>'><b><%=v.getNtitle() %></b></a> </li>
      <%} %>
      </ul>
    </div>
  </div>
  <div class="main">
    <div class="class_type"> <img src="../images/class_type.gif" alt="新闻中心" /> </div>
    <div class="content">
      <ul class="classlist">
       <%
         String id=request.getParameter("nid");
         int nid=Integer.valueOf(id);
 		//3、定义那个对象,用来执行sql语句
 		NewsDao lk=new NewsDao();
 		News ddd=lk.getds(nid);
 		if(ddd!=null){
 			%>
        <table width="80%" align="center">
          <tr width="100%">
            <td colspan="2" align="center"><%=ddd.getNtitle() %></td>
          </tr>
          <tr>
            <td colspan="2"><hr />
            </td>
          </tr>
          <tr>
            <td align="center"><%=ddd.getNdate() %></td>
            <td align="left"><%=ddd.getNzz() %> </td>
          </tr>
          <tr>
            <td colspan="2" align="center"></td>
          </tr>
          <tr>
            <td colspan="2">  
             <%=ddd.getNnr() %>
              
         <% }%>
              </td>
          </tr>
          <tr>
            <td colspan="2"><hr />
            </td>
          </tr>
        </table>
      </ul>
       <ul class="classlist">
          	<%
          		//查询新闻的评论
          			PtextDao fds=new PtextDao();
          	ArrayList<Ptext> sdd=fds.getptex(nid);
          		for(Ptext v:sdd){
          	%>
          	<li>
          		<%=v.getPnr() %>
          		<a href="dodelpl.jsp?pid=<%=v.getPid()%>" onclick='return clickdel()'>删除</a>
          		<a href="#">回复</a>
          	</li>
          	<hr>
          	<%} %>
      </ul>
      <ul class="classlist">
        <form action="doaddpl.jsp" method="post" onsubmit="return check()">
          <table width="80%" align="center">
            <tr>
              <td> 评 论 </td>
            </tr>
            <tr>
              <td> 用户名: </td>
              <td><input id="cauthor" name="cauthor" value="<%=((T277)session.getAttribute("a")).getUname()%>"/>
                IP:
                <input name="cip" value="127.0.0.1" readonly="readonly"/>
              </td>
            </tr>
            <tr>
              <td colspan="2"><fc:editor instanceName="str"></fc:editor>
              </td>
            </tr>
            <td><input name="submit" value="发  表" type="submit"/>
              </td>
          </table>
          <input type="hidden" value="<%=nid%>" name="nid"> 
        </form>
      </ul>
    </div>
  </div>
</div>
<div id="friend">
  <h1 class="friend_t"> <img src="../images/friend_ico.gif" alt="合作伙伴" /> </h1>
  <div class="friend_list">
    <ul>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
    </ul>
  </div>
</div>
<div id="footer">
  <p class=""> 24小时客户服务热线:010-68988888 &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160; 新闻热线:010-627488888 <br />
    文明办网文明上网举报电话:010-627488888 &#160;&#160;&#160;&#160; 举报邮箱: <a href="#">jubao@jb-aptech.com.cn</a> </p>
  <p class="copyright"> Copyright &copy; 1999-2009 News China gov, All Right Reserver <br />
    新闻中国 版权所有 </p>
</div>
</body>
</html>

添加评论and删除评论:doaddpl.jsp&&dodelpl.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.T277"%>
<%@page import="com.zking.entity.Ptext"%>
<%@page import="com.zking.dao.PtextDao"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
	request.setCharacterEncoding("utf-8");
	//接收评论人的编号(用户编号)
	int uuid = ((T277)session.getAttribute("a")).getUuid();//强转
	//评论人的IP
	String pip = request.getParameter("cip");
	//接收新闻编号(给哪一篇新闻评论)
	int nid = Integer.valueOf(request.getParameter("nid"));
	session.setAttribute("nid", nid);
	//评论内容
	String pnr = request.getParameter("str");
	//实例化PtextDao对象
	PtextDao d=new PtextDao();
	//实例化Ptext对象
	Ptext ds=new Ptext(uuid,nid,pnr,pip);
	//调用添加评论方法
	int i = d.addptext(ds);
	if(i>0){
		out.print("<script>alert('评论成功');location.href='read_news.jsp?nid=" nid "'</script>");
	}else{
		out.print("<script>alert('评论失败');location.href='read_news.jsp?nid=" nid "'</script>");
	}
%>
代码语言:javascript复制
<%@page import="com.zking.dao.PtextDao"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	String id=request.getParameter("pid");
	Object ids = session.getAttribute("nid");
	int nid = (Integer)ids;//强转
	int snid=Integer.valueOf(id);
	PtextDao fd=new PtextDao();
	int i=fd.delte(snid);
	if(i>0){
		out.print("<script>alert('删除成功');location.href='read_news.jsp?nid=" nid "'</script>");
	}else{
		out.print("<script>alert('删除失败');location.href='read_news.jsp?nid=" nid "'</script>");
	}
%>

游客页面:index.jsp

代码语言:javascript复制
<%@page import="com.zking.entity.News"%>
<%@page import="com.zking.dao.NewsDao"%>
<%@page import="com.zking.entity.Subject"%>
<%@page import="java.util.ArrayList"%>
<%@page import="com.zking.dao.SubjectDao"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Connection"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>新闻中国</title>
<link href="../CSS/main.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
function $(id) {
	return document.getElementById(id);
}
function login() {
	//验证 用户名 和 密码不能为空 
	//获取用户名
	var uname = $("uname").value;	
	if(uname.length==0){
		alert("用户名不能为空");
		return false;
	}
	//获取密码
	var upwd = $("upwd").value;
	if(upwd.length==0){
		alert("密码不能为空");
		return false;
	}
}
</script>
</head>
<body>
<div id="header">
  <div id="top_login">
  <form action="login.jsp" onsubmit="return login()">
    <label> 登录名 </label>
    <input type="text" name="textfield" class="login_input" />
    <label> 密&#160;&#160;码 </label>
    <input type="password" name="textfield2" class="login_input" />
    <input type="submit" class="login_sub" value="登录"/>
    <input type="hidden" value="1" name="jk"> 
    <label id="error"> </label>
    <img src="../images/friend_logo.gif" alt="Google" id="friend_logo" />  </form>
    </div>
   
  <div id="nav">
    <div id="logo"> <img src="../images/logo.jpg" alt="新闻中国" /> </div>
    <div id="a_b01"> <img src="../images/a_b01.gif" alt="" /> </div>
    <!--mainnav end-->
  </div>
</div>
<div id="container">
  <div class="sidebar">
    <h1> <img src="../images/title_1.gif" alt="国内新闻" /> </h1>
    <div class="side_list">
      <ul>
      <%
      //实例化一个subjectDao对象
      NewsDao dds=new NewsDao();
      ArrayList<News> slist=dds.getAll(1);
    //遍历集合
    for(News n:slist){
      %>
        <li> <a href='read_news.jsp?nid=<%=n.getTid()%>'><b><%=n.getNtitle() %></b></a> </li>
      <%} %>
      </ul>
    </div>
    <h1> <img src="../images/title_2.gif" alt="国际新闻" /> </h1>
    <div class="side_list">
      <ul>
      <% 
      //实例化NewsDao 
      NewsDao dd=new NewsDao();
      ArrayList<News> hh=dd.getAll(2);
	for(News v:hh){
  	%>
        <li> <a href='read_news.jsp?nid=<%=v.getNid()%>'><b><%=v.getNtitle() %></b></a> </li>
      <%} %>
      </ul>
    </div>
    <h1> <img src="../images/title_3.gif" alt="娱乐新闻" /> </h1>
    <div class="side_list">
      <ul>
          <% 
      ArrayList<News> sb=dd.getAll(5);
          for(News v:sb){
  	%>
        <li> <a href='read_news.jsp?nid=<%=v.getNid()%>'><b><%=v.getNtitle() %></b></a> </li>
        
      <%} %>
      </ul>
    </div>
  </div>
  <div class="main">
    <div class="class_type"> <img src="../images/class_type.gif" alt="新闻中心" /> </div>
    <div class="content">
      <ul class="class_date">
        <li id='class_month'> 
        	<%
        	SubjectDao sf=new SubjectDao();
        	ArrayList<Subject> ssa=sf.getAll();
        	//查询主题
        	for(Subject vd:ssa){
        	%>
        	<a href='index.jsp?tid=<%=vd.getTid() %>'><b> <%=vd.getTname() %> </b></a>
        	<%} %> 
         </li>
      </ul>
      <ul class="classlist">
      	<%
      		//实例化NewsDao对象
      		NewsDao nd=new NewsDao();
      	//接收页码
      	String index=request.getParameter("pageIndex");
      		//接收新闻主题
      		String id = request.getParameter("tid");
      		int pageSize = 5;
      		int maxPage=0;
      		ArrayList<News> nlist=null;
      		int pageIndex=1;
      		if(index!=null){
      			pageIndex=Integer.valueOf(index);
      		}
      		//查询新闻
      		if(id!=null){//有就根据主题查询
      			int tid=Integer.valueOf(id);
      		//调用根据主题查询的最大页码
      		maxPage=nd.getMaxPagebyid(pageSize, tid);
      		//调用根据主题查询的数据 分页
      		nlist=nd.pageNewsbyid(pageIndex, pageSize, tid);
      		}else{//没有就查询所有
      		//查询所有的数据最大页码
      		maxPage=nd.getMaxPage(pageSize, "");
      		//调用查询所有新闻的方法 分页查询
      		nlist=nd.pageNews(pageIndex, pageSize);
      		}
      		//遍历集合
      		for(News n:nlist){
      	%>
        <li>
        	<a href='read_news.jsp?nid=<%=n.getNid()%>'><%=n.getNtitle() %> </a>
        	<span> <%=n.getNdate() %> </span>
        </li>
        <li class='space'></li>
        <%} %>
        <p align="right"> 
        	<a href="index.jsp<%
        		if(id!=null){
        			out.print("?tid=" id);
        		}
        	%>">首页</a> 
        	<a href="index.jsp?pageIndex=<%=pageIndex>1?pageIndex-1:1%><%
        		if(id!=null){
        			out.print("&tid=" id);
        		}
        	%>">上一页</a>
        		&nbsp;当前页数:[<%=pageIndex %>/<%=maxPage %>]&nbsp; 
        	<a href="index.jsp?pageIndex=<%=pageIndex<maxPage?pageIndex 1:maxPage%><%
        			if(id!=null){
        				out.print("&tid=" id);
        			}
        	%>">下一页</a> 
        	<a href="index.jsp?pageIndex=<%=maxPage%><%
        		if(id!=null){
        			out.print("&tid=" id);
        		}
        	%>">末页</a> 
        </p>
      </ul>
    </div>
    <div class="picnews">
      <ul>
        <li> <a href="#"><img src="../images/Picture1.jpg" width="249" alt="" /> </a><a href="#">幻想中穿越时空</a> </li>
        <li> <a href="#"><img src="../images/Picture2.jpg" width="249" alt="" /> </a><a href="#">国庆多变的发型</a> </li>
        <li> <a href="#"><img src="../images/Picture3.jpg" width="249" alt="" /> </a><a href="#">新技术照亮都市</a> </li>
        <li> <a href="#"><img src="../images/Picture4.jpg" width="249" alt="" /> </a><a href="#">群星闪耀红地毯</a> </li>
      </ul>
    </div>
  </div>
</div>
<div id="friend">
  <h1 class="friend_t"> <img src="../images/friend_ico.gif" alt="合作伙伴" /> </h1>
  <div class="friend_list">
    <ul>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
      <li> <a href="#">中国政府网</a> </li>
    </ul>
  </div>
</div>
<div id="footer">
  <p class=""> 24小时客户服务热线:010-68988888 &#160;&#160;&#160;&#160; <a href="#">常见问题解答</a> &#160;&#160;&#160;&#160; 新闻热线:010-627488888 <br />
    文明办网文明上网举报电话:010-627488888 &#160;&#160;&#160;&#160; 举报邮箱: <a href="#">jubao@jb-aptech.com.cn</a> </p>
  <p class="copyright"> Copyright &copy; 1999-2009 News China gov, All Right Reserver <br />
    新闻中国 版权所有 </p>
</div>
</body>
</html>

其实很多项目里面的功能都是一样的,只要你会用,知道哪些代码放在哪个位置,用一句话来概括前端那就是只要你会copy就行

<( ̄︶ ̄)>   *~( ̄▽ ̄)~* 

加油吧!程序猿们

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