軟件工程概論課後作業1
阿新 • • 發佈：2017-11-23
fresh 課後作業 tran success ins uml header pan ges
1.網站系統開發需要掌握的技術：
JSP、Servlet、JDBC、JavaBean、UML統一建模語言的UML圖、JavaScript、XML、html、css語言。
2.源代碼：
addInut.jsp
<%@ 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> <title>用戶添加頁面</title> </head> <body> <%=request.getAttribute("error") %> <form action="add.jsp" method="get"> <table align="center" border="1" width="500"> <tr> <td>用戶名稱 : </td> <td> <input type="text" name="username" /> </td> </tr> <tr> <td>用戶密碼:</td> <td> <input type="password" name="password" /> </td> </tr> <tr> <td>用戶昵稱:</td> <td> <input type="text" name="nickname" /> </td> </tr> <tr align="center"> <td colspan="2"> <input type="submit" value="提交" /> <input type="reset" value="重置" /> </td> </tr> </table> </form> </body> </html>
login1
<%@ 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> <title>登錄界面</title> </head> <body style="background-image:url(‘../image/back.jpg‘);"> <%//=request.getAttribute("error") %> <center style="color:black ; font-family:宋體;font-size:16px">登錄</center> <form action="login2.jsp" method="get"> <table align="center" border="1" width="500"> <tr> <td>用戶名稱 : </td> <td> <input type="text" name="username" /> </td> </tr> <tr> <td>用戶密碼:</td> <td> <input type="password" name="password" /> </td> </tr> <tr> <tr align="center"> <td colspan="2"> <input type="submit" value="登錄" /> <a href="addInput.jsp">點擊註冊</a><br> </td> </tr> </table> <br> <center> <%=request.getAttribute("error") %></center> </form> </body> </html>
login2
<%@page import="com.jaovo.msg.Util.UserException"%> <%@page import="com.jaovo.msg.dao.UserDaoImpl"%> <%@page import="com.jaovo.msg.model.User"%> <%@page import="java.sql.Connection"%> <%@page import="java.sql.PreparedStatement"%> <%@page import="java.sql.ResultSet"%> <%@page import="com.jaovo.msg.Util.DBUtil"%> <%@ 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> <% //接收客戶端傳遞過來的參數 String username = request.getParameter("username"); String password = request.getParameter("password"); if(username == null || "".equals(username.trim())){ request.setAttribute("error", "用戶名不能為空"); %> <jsp:forward page="login1.jsp"></jsp:forward> <% } User user = new User(); user.setUsername(username); UserDaoImpl userDao = new UserDaoImpl(); Connection connection=DBUtil.getConnection(); PreparedStatement preparedStatement = null; ResultSet resultSet = null; String sql = "select * from t_user where username = ?"; preparedStatement = connection.prepareStatement(sql); preparedStatement.setString(1, user.getUsername()); resultSet = preparedStatement.executeQuery(); if(resultSet.next()) { if(resultSet.getString("password").equals(password) ){ //response.sendRedirect("loginsuccess.jsp"); out.print("<script language=‘javaScript‘> alert(‘登陸成功‘);</script>"); response.setHeader("refresh", "0;url=login.jsp"); } else{ out.print("<script language=‘javaScript‘> alert(‘密碼錯誤‘);</script>"); response.setHeader("refresh", "0;url=login.jsp"); } } else { out.print("<script language=‘javaScript‘> alert(‘賬號錯誤——else‘);</script>"); response.setHeader("refresh", "0;url=login.jsp"); } %> </html>
3.實驗截圖
4.對這門課的希望和自己的目標：
希望可以好好學習，爭取不掛科
5.每周花多少時間在這門課上：
每天大約兩小時左右
軟件工程概論課後作業1