jsp连接SQL Server (二)
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jsp连接数据库环境配置及简单的增删改查(二)
下面是各个功能页面的实现代码,由于未使用servlet,某些带*_deal.jsp字样的页面充当servlet的功能;
1.index.jsp ,首页,主要列出所有用户信息,以及增删改查的功能:
页面运行效果如下:
源代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ page import="com.zmp.dao.*,com.zmp.entity.User,com.zmp.dao.impl.UserDaoImpl,java.util.ArrayList" %><!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>用户信息</title> <link rel="stylesheet" href="css/table.css" /> </head> <body> <div id="head"> 用户信息 <a href="index.jsp"><img src="images/home.png" alt="主页" id="headimg"/> </a> </div> <% UserDaoImpl udi = new UserDaoImpl(); ArrayList<User> array = new ArrayList<User>(); array = udi.listUser(); String sno; %> <table id="customers" style="float: left;margin-left: 350px;"> <tr> <th>学号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> <th>系别</th> <th>操作</th> </tr> <% for(int i = 0; i < array.size(); i++) { User user = null; user = (User)array.get(i); %> <tr> <td><%=user.getSno() %></td> <td><%=user.getSname() %></td> <td><%=user.getSsex() %></td> <td><%=user.getSage() %></td> <td><%=user.getSdept() %></td> <td><a href="update.jsp?sno=<%=user.getSno()%>"> <img src="images/update.png" alt="修改" style="width:30px;height:33px;"/> </a> <a href="delete_deal.jsp?sno=<%=user.getSno()%>"> <img src="images/delete.png" alt="删除" style="width:30px;height:33px;"/> </a> </td> </tr> <% } %> </table> <div id="right"> <table id="customers" style="width: 100%;height: 150px;"> <tr> <th>功能:</th> <td> <a href="select.jsp"> <img src="images/select.png" alt="查找" style="width:50px;height:60px;"/> </a> <a href="add.jsp"> <img src="images/add.png" alt="添加" style="width:50px;height:60px;"/> </a> </td> </tr> </table> </div> </body></html>2.delete_deal.jsp,处理点击index.jsp页面删除按钮的事件,如果删除成功,alert出删除成功的提示语句;如果删除失败,则alert出删除失败的提示语句;点击确定后都跳转到index.jsp页面:
源代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ page import="com.zmp.dao.*,com.zmp.entity.User,com.zmp.dao.impl.UserDaoImpl" %><!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>删除信息</title> </head> <body> <% request.setCharacterEncoding("UTF-8"); if(request.getParameter("sno") != null) { UserDaoImpl udi = new UserDaoImpl(); if(udi.deleteUser(request.getParameter("sno")) == 1) { out.println("<script language='javascript'>alert('删除成功!');window.location.href='index.jsp';</script>" ); } else { out.println("<script language='javascript'>alert('删除失败!');window.location.href='index.jsp';</script>" ); } } else { out.println("<script language='javascript'>alert('删除失败!');window.location.href='index.jsp';</script>" ); } %> </body></html>3.select.jsp,查询信息页面,按学号查询,由于本页面比较简单,所以处理事件的代码也在此页面,运行效果如下:
源代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ page import="com.zmp.dao.*,com.zmp.entity.User,com.zmp.dao.impl.UserDaoImpl" %> <!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>查询</title> <link rel="stylesheet" href="css/table.css" /> </head> <body> <% User user = null; request.setCharacterEncoding("utf-8"); if(request.getParameter("Sno") != null) { String sno = request.getParameter("Sno"); UserDaoImpl udi = new UserDaoImpl(); user=udi.findUser(sno); } %> <div id="head"> 查找用户 <a href="index.jsp"><img src="images/home.png" alt="主页" id="headimg"/> </a> </div> <form action="select.jsp"> <table id="customers" style="width:20%;"> <tr> <td>输入学号:</td> <td><input type="text" name="Sno" /></td> </tr> <% if(user != null) {%> <tr> <th>学号</th> <td><%=user.getSno() %></td> </tr> <tr> <th>姓名</th> <td><%=user.getSname() %></td> </tr> <tr> <th>性别</th> <td><%=user.getSsex() %></td> </tr> <tr> <th>年龄</th> <td><%=user.getSage() %></td> </tr> <tr> <th>系别</th> <td><%=user.getSdept() %></td> </tr> <% } else {%> <tr> <td colspan="2" style="color:red;font-size:14px;">*没有该生信息!</td> </tr> <%} %> <tr> <td colspan="2"><input type="submit" value="查找" /></td> </tr> </table> </form> </body></html>4.update.jsp修改页面,点击index.jsp页面的修改按钮进入update.jsp,运行效果如下:
源代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ page import="com.zmp.dao.*,com.zmp.entity.User,com.zmp.dao.impl.UserDaoImpl" %><!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>修改信息</title> <link rel="stylesheet" href="css/table.css" /> </head> <body> <div id="head"> 修改信息 <a href="index.jsp"><img src="images/home.png" alt="主页" id="headimg"/> </a> </div> <% request.setCharacterEncoding("UTF-8"); User user = null; UserDaoImpl udi = new UserDaoImpl(); if(request.getParameter("sno") != null) { user = udi.findUser(request.getParameter("sno"));%> <form action="update_deal.jsp" method="post" id="update"> <table id="customers" style="width:20%;"> <tr> <th>学号</th> <td><%=user.getSno() %><input type="hidden" name="Sno" value="<%=user.getSno() %>"/></td> </tr> <tr> <th>姓名</th> <td><input type="text" name="Sname" value="<%=user.getSname() %>" /></td> </tr> <tr> <th>性别</th> <td><input type="text" name="Ssex" value="<%=user.getSsex() %>"/></td> </tr> <tr> <th>年龄</th> <td><input type="text" name="Sage" value="<%=user.getSage() %>"/></td> </tr> <tr> <th>系别</th> <td><input type="text" name="Sdept" value="<%=user.getSdept() %>"/></td> </tr> <tr> <td colspan="2"> <input type="submit" value="修改" /> </td> </tr> </table> </form> <% } %> </body></html>5.update_deal.jsp处理update.jsp页面,源代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ page import="com.zmp.dao.*,com.zmp.entity.User,com.zmp.dao.impl.UserDaoImpl" %> <!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>修改信息处理</title> </head> <body> <% request.setCharacterEncoding("UTF-8"); if(request.getParameter("Sno") != null) { User user = new User(); UserDaoImpl udi = new UserDaoImpl(); user.setSno(request.getParameter("Sno")); user.setSname(request.getParameter("Sname")); user.setSsex(request.getParameter("Ssex")); user.setSage(request.getParameter("Sage")); user.setSdept(request.getParameter("Sdept")); if(udi.updateUser(user) == 1) { out.println("<script language='javascript'>alert('修改成功!');window.location.href='index.jsp';</script>" ); } else { out.println("<script language='javascript'>alert('修改失败!');window.location.href='index.jsp';</script>" ); } } else { out.println("<script language='javascript'>alert('修改失败!');window.location.href='index.jsp';</script>" ); } %> </body></html>6.add.jsp,添加信息页面,有index.jsp中添加按钮点击进入,运行效果如下:
<%@ 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"> <link rel="stylesheet" href="css/table.css" /> <title>添加</title> </head> <body> <div id="head"> 添加用户 <a href="index.jsp"><img src="images/home.png" alt="主页" id="headimg"/> </a> </div> <form action="add_deal.jsp" method="post"> <table id="customers" style="width:20%;"> <tr> <th>学号</th> <td><input type="text" name="Sno"/></td> </tr> <tr> <th>姓名</th> <td><input type="text" name="Sname" /></td> </tr> <tr> <th>性别</th> <td><input type="text" name="Ssex" /></td> </tr> <tr> <th>年龄</th> <td><input type="text" name="Sage" /></td> </tr> <tr> <th>系别</th> <td><input type="text" name="Sdept" /></td> </tr> <tr> <td colspan="2"><input type="submit" value="添加" /></td> </tr> </table> </form> </body></html>
7.add_deal.jsp,处理add.jsp页面:
源代码如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ page import="com.zmp.dao.*,com.zmp.entity.User,com.zmp.dao.impl.UserDaoImpl" %> <!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>添加处理</title> </head> <body> <% request.setCharacterEncoding("utf-8"); if(request.getParameter("Sno") != null) { UserDaoImpl udi = new UserDaoImpl(); User user = new User(); //此处必须实例化,即User user = new User();若User user = null;则为空 user.setSno(request.getParameter("Sno")); user.setSname(request.getParameter("Sname")); user.setSsex(request.getParameter("Ssex")); user.setSage(request.getParameter("Sage")); user.setSdept(request.getParameter("Sdept")); if(udi.addUser(user) == 1) { out.println("<script language='javascript'>alert('添加成功!');window.location.href='index.jsp';</script>" ); } else { out.println("<script language='javascript'>alert('添加失败!');window.location.href='index.jsp';</script>" ); } } else { out.println("<script language='javascript'>alert('添加失败!');window.location.href='index.jsp';</script>" ); } %> </body></html>8.最后,用到的table.css,代码如下:
#customers { font-family: "Trebuchet MS", Arial, Helvetica, sans-serif; width: 50%; border-collapse: collapse; margin: 0 auto; text-align: center;}#customers td, #customers th {font-size: 1em; border: 1px solid #98bf21; padding: 3px 7px 2px 7px;}#customers th { font-size: 1.1em; text-align: center;padding-top: 5px;padding-bottom: 4px;background-color: #A7C942;color: #ffffff;}#customers tr.alt td { color: #000000; background-color: #EAF2D3;}#head {background-color: #98ba00;margin-top: 15px;margin-bottom:10px;width: 100%;height:80px;text-align: center;font-size: 30px;color: Black;}#head p{margin-top:10px;text-algin:center;}#right {height:150px;width: 250px;float: right;margin-right: 50px;}input[type="text"] {outline:#FF8C00 solid 1px;}input[type="submit"] {border: none;background-color: #98ba00;width: 60px;height: 35px;}#headimg {width: 30px;height: 40px;float:right;margin-right:60px;margin-top:30px;"}用到的按钮图片如下:
哦了,本次教程完了,睡觉了,下午还有课!!!!!!!!- jsp连接SQL Server (二)
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