第十一周jsp作业
package com.gd.dao; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class BaseDao { // 获取连接 protected Connection getConnection() { Connection conn = null; try { Class.forName("com.mysql.jdbc.Driver"); // 2.建立连接 conn = DriverManager.getConnection( "jdbc:mysql://localhost:3306/zuoye", "root", "123456"); } catch (Exception e) { e.printStackTrace(); } return conn; } // 关闭连接 protected void closeAll(Connection con, PreparedStatement ps, ResultSet rs) { try { if (rs != null) rs.close(); if (ps != null) ps.close(); if (con != null) con.close(); } catch (SQLException e) { e.printStackTrace(); } } }
package com.gd.dao; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import com.gd.entity.Mail; public class MailDao extends BaseDao { public List<Mail> listAll(String username) throws SQLException{ List<Mail> list=new ArrayList<Mail>(); Connection conn = getConnection(); String sql="select * from msg where username=?"; PreparedStatement pred =null; ResultSet rest=null; try { pred = conn.prepareStatement(sql); pred.setString(1, username); rest=pred.executeQuery(); while (rest.next()) { Mail mail = new Mail(); mail.setMailid(rest.getInt("mailid")); mail.setUsername(rest.getString("username")); mail.setTitle(rest.getNString("title")); mail.setMailcontent(rest.getString("mailcontent")); mail.setState(rest.getInt("state")); mail.setSendto(rest.getString("sendto")); mail.setMail_create_date(rest.getDate("mail_create_date")); } } catch (Exception e) { // TODO: handle exception } finally{ closeAll(conn, pred, rest); } return list; } }
package com.gd.dao; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class UsersDao extends BaseDao{ public boolean login(String uname ,String upwd)throws SQLException{ boolean f = false; Connection conn = getConnection(); PreparedStatement pred = null; ResultSet rest = null; String sql = "select * from users where uname=? and upwd=?"; try { while (rest.next()) { f=true; } } catch (Exception e) { // TODO: handle exception }finally { closeAll(conn, pred, rest); } return f; } public boolean id(Integer id ) throws SQLException{ boolean f = false; Connection conn = getConnection(); PreparedStatement pred = null; ResultSet rest = null; String sql = "select * from users where id=?"; try { pred = conn.prepareStatement(sql); pred.setInt(1, id); rest = pred.executeQuery(); while(rest.next()) { f=true; } } catch (Exception e) { // TODO: handle exception } finally { closeAll(conn, pred, rest); } return f; } public void zhuce(Integer id, String uname ,String upwd) { Connection conn = getConnection(); PreparedStatement pred = null; try { String sql = "insert into users(id,uname,upwd) values(?,?,?)"; pred = conn.prepareStatement(sql); pred.setInt(1, id); pred.setString(2, uname); pred.setString(3, upwd); } catch (Exception e) { // TODO: handle exception } finally { closeAll(conn, pred, null); } } }
package com.gd.entity; import java.util.Date; public class Mail { private Integer mailid; private String username; private String title; private String mailcontent; private Integer state; private String sendto; private Date mail_create_date; public Integer getMailid() { return mailid; } public void setMailid(Integer mailid) { this.mailid = mailid; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getMailcontent() { return mailcontent; } public void setMailcontent(String mailcontent) { this.mailcontent = mailcontent; } public Integer getState() { return state; } public void setState(Integer state) { this.state = state; } public String getSendto() { return sendto; } public void setSendto(String sendto) { this.sendto = sendto; } public Date getMail_create_date() { return mail_create_date; } public void setMail_create_date(Date mail_create_date) { this.mail_create_date = mail_create_date; } @Override public String toString() { return "Mail [mailid=" + mailid + ", username=" + username + ", title=" + title + ", mailcontent=" + mailcontent + ", state=" + state + ", sendto=" + sendto + ", mail_create_date=" + mail_create_date + "]"; } public Mail(Integer mailid, String username, String title, String mailcontent, Integer state, String sendto, Date mail_create_date) { super(); this.mailid = mailid; this.username = username; this.title = title; this.mailcontent = mailcontent; this.state = state; this.sendto = sendto; this.mail_create_date = mail_create_date; } public Mail() { super(); // TODO Auto-generated constructor stub } }
package com.gd.entity; public class Users { private Integer id; private String uname; private String upwd; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUname() { return uname; } public void setUname(String uname) { this.uname = uname; } public String getUpwd() { return upwd; } public void setUpwd(String upwd) { this.upwd = upwd; } }
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@page import="com.gd.dao.UsersDao" %> <% request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); %> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% String uname = request.getParameter("uname"); String upwd = request.getParameter("upwd"); UsersDao ud = new UsersDao(); if (ud.login(uname, upwd)) { session.setAttribute("uname", uname); request.getRequestDispatcher("index.jsp").forward(request, response); } else { out.print("登录失败,5s后跳转登录页面"); response.setHeader("refresh", "5;url=login.jsp"); } %> </body> </html>
<%@page import="org.apache.catalina.connector.OutputBuffer"%> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); %> <%@page import="com.gd.dao.UsersDao"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% String uid = request.getParameter("id"); Integer id = Integer.parseInt(uid); String uname = request.getParameter("uname"); String upwd = request.getParameter("upwd"); String upwd2 = request.getParameter("upwd2"); UsersDao usersDao = new UsersDao(); if (upwd.equals(upwd2)) { if (usersDao.id(id)) { out.print("已经有这个id了，即将跳回注册界面"); response.setHeader("rafresh", "5;url=zhuce.jsp"); } else { usersDao.zhuce(id, uname, upwd); out.print("注册成功了，即将跳回登录界面"); response.setHeader("refresh", "5;url=login.jsp"); } } else { out.print("两次密码不一致,即将跳回注册界面"); response.setHeader("refresh", "5;url=zhuce.jsp"); } %> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); %> <%@page import="java.util.List" import="java.util.*"%> <%@page import="sun.security.jgss.LoginConfigImpl"%> <%@page import="com.gd.dao.UsersDao"%> <%@page import="com.gd.dao.MailDao" %> <%@page import="com.gd.entity.Mail"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% String uname = (String) session.getAttribute("uname"); if (uname == null) { out.print("您未登录，即将跳回登陆页....."); response.setHeader("refresh", "5;url=login.jsp"); } else { %> 欢迎你<%=uname%> <% Mail mail = new Mail(); MailDao mailDao = new MailDao(); List<Mail> list = new ArrayList<Mail>(); list = mailDao.listAll(uname); %> 邮件列表: <table width="600px" border="2px solid blue"> <tr> <th>id</th> <th>发件人</th> <th>标题</th> <th>内容</th> <th>已读未读状态</th> <th>收件人</th> <th>发送时间</th> </tr> <% if (list.size() == 0) { out.print("你没有邮件"); } else { for (Mail mail1 : list) { %> <tr> <td> <% out.print(mail1.getMailid()); %> </td> <td> <% out.print(mail1.getUsername()); %> </td> <td> <% out.print(mail1.getTitle()); %> </td> <td> <% out.print(mail1.getMailcontent()); %> </td> <td> <% int state = mail1.getState(); if (state == 1) { %> <img src="image/yidu.png" /> <% ; } else { %> <img src="image/weidu.png" /> <% ; } %> </td> <td> <% out.print(mail1.getSendto()); %> </td> <td> <% out.print(mail1.getMail_create_date()); %> </td> </tr> <% } } } %> </table> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); %> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <script type="text/javascript"> function dologin() { if (loginform.uname.value == "") { alert("没有输入用户名"); return; } if (loginform.upwd.value == "") { alert("没有输入密码"); return; } loginform.submit(); } </script> <form action="dologin.jsp" name="loginfrom" method="post"> 用户名:<input type = "text" name="uname"/><br> 密码：<input type = "password" name="upwd"/><br> <input type ="button" value="登录" onclick="dologin()"> <a href="zhuce.jsp">立即注册<a/> </form> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); %> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <script type="text/javascript"> function dozhuce(){ if(loginfrom2.id.value == ""){ alert("没有输入id"); return; } if(loginfrom2.uname.value == ""){ alert("没有输入用户名"); return; } if (loginform2.upwd.value == "") { alert("没有输入密码"); return; } if (loginform2.upwd2.value == "") { alert("没有确认密码"); return; } loginform2.submit(); } </script> <form action="dozhuce.jsp" name="loginform2" method="post"> id: <input type="number" name="id" /><br> 用户名:<input type="text" name="uname" /> <br> 密码:<input type="password" name="upwd" /> <br> 确认密码:<input type="password" name="upwd2" /><br> <input type="button" value="注册" onclick="dozhuce()" /> </form> </body> </html>
