JSP第十二周作业
package com.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 java.util.Date; import com.entity.Msg; public class MsgDao extends BaseDao { public void addMsg(Msg m) { Connection con = getConnection(); String sql = "insert into msg(username,title,msgcontent,state,sendto,msg_create_date) values(?,?,?,?,?,?)"; PreparedStatement ps = null; try { ps = con.prepareStatement(sql); ps.setString(1, m.getUsername()); ps.setString(2, m.getTitle()); ps.setString(3, m.getMsgcontent()); ps.setInt(4, 1); ps.setString(5, m.getSendto()); ps.setDate(6, new java.sql.Date(new Date().getTime()));// 系统当前时间 ps.executeUpdate(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { closeAll(con, ps, null); } } public void delMail(int id) { Connection conn = getConnection(); String sql = "delete from msg where msgid=?"; PreparedStatement ps = null; try { ps = conn.prepareStatement(sql); ps.setInt(1, id); ps.executeUpdate(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ closeAll(conn, ps, null); } } public void update(int id) { Connection con = getConnection(); String sql = "update msg set state='1' where msgid=?"; PreparedStatement ps = null; try { ps = con.prepareStatement(sql); ps.setInt(1, id); ps.executeUpdate(); } catch (SQLException e) { e.printStackTrace(); } finally { closeAll(con, ps, null); } } public List<Msg> getMailByReceiver(String name) { List<Msg> list = new ArrayList<Msg>(); Connection con = getConnection(); String sql = "select * from msg where sendto=?"; PreparedStatement ps=null; ResultSet rs=null; try { ps = con.prepareStatement(sql); ps.setString(1, name); rs = ps.executeQuery(); while (rs.next()) { Msg m = new Msg(); m.setMsgid(rs.getInt("msgid")); m.setUsername(rs.getString("username")); m.setTitle(rs.getString("title")); m.setMsgcontent(rs.getString("msgcontent")); m.setState(rs.getInt("state")); m.setSendto(rs.getString("sendto")); m.setMsg_create_date(rs.getDate("msg_create_date")); list.add(m); } } catch (SQLException e) { e.printStackTrace(); }finally{ closeAll(con, ps, rs); } return list; }
<%@page import="com.gd.dao.UsersDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% request.setCharacterEncoding("utf-8"); 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("main.jsp").forward(request, response); }else{ out.print("登陆失败,即将跳回登陆页....."); response.setHeader("refresh", "5;url=Login.jsp"); } %>
<html> <head> <title>My JSP 'main' starting page</title> </head> <body> <% String uname = (String) session.getAttribute("uname"); %> 欢迎你<% out.print(uname); %>使用邮箱 <hr> <a href="write.jsp">写邮件</a> <table border="1"> <tr> <td>发件人</td> <td>标题</td> <td>状态</td> <td>时间</td> <td>操作</td> <td>操作</td> <% MsgDao md = new MsgDao(); List<Msg> list = md.getMailByReceiver(uname); for (int i = 0; i < list.size(); i++) { %> <tr> <td><%=list.get(i).getUsername()%></td> <td><a href="detail.jsp?id=<%=list.get(i).getMsgid()%>"><%=list.get(i).getMsgcontent() %></a> </td> <td> <% if (list.get(i).getState() == 1) { %> <img src="image/unread.png"/> <% } else { %><img src="image/read.png"/> <% } %> </td> <td><%=list.get(i).getMsg_create_date()%></td> <td><a href="delete.jsp?id=<%=list.get(i).getMsgid()%>">删除</a> </td> <td><a href="write.jsp?reply=<%=list.get(i).getUsername()%>">回复</a> </td> </tr> <% } %> </table> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML> <html> <head> <title>注册</title> </head> <body> <h1>注册</h1> <script> function yz() { if (form.uname.value == "") { alert('用户名不能为空'); return; } if (form.password.value == "") { alert('密码不能为空'); return; } form.submit(); } </script> <form action="doregister.jsp" method="post" name="form"> <table> <tr> <td>用户名</td> <td><input type="text" name="uname"> </td> </tr> <tr> <td>密码</td> <td><input type="password" name="password"> </td> </tr> <tr> <td> <input type="button" value="注册" onclick="yz()"> </td> <td> <input type="submit" value="重置" > </td> </tr> </table> </form> </body> </html>