第十二周作业
1.实现 删除 回复邮件
package com.ymz; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.Date; import java.util.List; import com.gd.entity.Msg; public class MsgDao extends BaseDao { // 插入邮件 public void addMsg(Msg m) { Connection conn = getConnection(); String sql = "insert into msg(username,title,msgcontent,state,sendto,msg_create_date) values(?,?,?,?,?,?)"; PreparedStatement ps = null; try { ps = conn.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(conn, ps, null); } } // 删除邮件 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 static void main(String[] args) { // MsgDao md=new MsgDao(); // md.delMail(3); // } // 修改邮件状态 // 按照接收者查询全部邮件 public List<Msg> getMailByReceiver(String name) { List<Msg> list = new ArrayList<Msg>(); Connection conn = getConnection(); String sql = "select * from msg where sendto=?"; PreparedStatement ps = null; ResultSet rs = null; try { ps = conn.prepareStatement(sql); ps.setString(1, name); rs = ps.executeQuery(); while (rs.next()) { Msg m = new Msg(); m.setMsgid(rs.getInt(1)); m.setUsername(rs.getString(2)); m.setTitle(rs.getString(3)); m.setMsgcontent(rs.getString(4)); m.setState(rs.getInt(5)); m.setSendto(rs.getString(6)); m.setMsg_create_date(rs.getDate(7)); list.add(m); } } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { closeAll(conn, ps, rs); } return list; } }
<%@page import="com.ymz.MsgDao"%> <%@page import="com.ymz.Msg"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <%String uname=(String)session.getAttribute("uname"); %> 首页!!欢迎你<%=uname %> <a href="write.jsp">写邮件</a> <table border="1"> <tr> <td>发件人</td><td>主题</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><%=list.get(i).getTitle() %></td> <td><%if(list.get(i).getState()==1){%> <img src="images/sms_unReaded.png"/> <%}else{ %> <img src="images/sms_readed.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 import="com.ymz.MsgDao"%> <%@page import="com.ymz.Msg"%> <%@page import="com.ymz.UsersDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% request.setCharacterEncoding("utf-8"); int id=Integer.parseInt(request.getParameter("id")); MsgDao md=new MsgDao(); md.delMail(id); // out.print("刪除成功....."); // response.setHeader("refresh", "2;url=main.jsp"); response.sendRedirect("main.jsp"); %>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <form action="dowrite.jsp" method="post"> 收件人:<input type="text" name="receiver" value="<%=request.getParameter("reply")%>"><br> 主题: <input type="text" name="title" ><br> 内容<textarea rows="6" cols="20" name="content"></textarea> <br> <input type="submit" value="发送"> </form> </body> </html>
<%@page import="com.ymz.MsgDao"%> <%@page import="com.ymz.Msg"%> <%@page import="com.ymz.UsersDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% request.setCharacterEncoding("utf-8"); String uname=(String)session.getAttribute("uname"); String sendto=request.getParameter("receiver"); String title=request.getParameter("title"); String content=request.getParameter("content"); Msg m=new Msg(); m.setMsgcontent(content); m.setUsername(uname); m.setSendto(sendto); m.setTitle(title); MsgDao md=new MsgDao(); md.addMsg(m); out.print("发送成功....."); response.setHeader("refresh", "5;url=main.jsp"); %>
2.实现阅读邮件功能:在main.jsp中点击任意邮件的标题,进入到detail.jsp显示邮件详情,包括发件人,主题,内容,时间。同时需要把邮件状态修改为已读。
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@ page import="com.ymz.MsgDao"%> <%@ page import="com.ymz.Msg"%> <%@ page import="java.util.List"%> <%@ page import="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>Insert title here</title> <style> table { border-collapse: collapse; width:300px; } table, table tr th, table tr td { border: 1px solid #000000; } table td{ text-align:center; } img{ width:30px; } a{ text-decoration: none; } a:link{ color:black; } </style> </head> <body> <table border="1"> <tr> <td>发件人</td><td>主题</td><td>状态</td><td>时间</td><td>操作</td><td>操作</td> <% int id=Integer.parseInt(request.getParameter("id")); MsgDao md = new MsgDao(); Msg m = md.getMailById(id); out.print("<tr><td>"+ m.getSender() + "</td>"); out.print("<td><a href=\"detail.jsp?id="+m.getEid() +"\">" + m.getTitle() + "</a></td>"); if (m.getState() == 1) { out.print("<td><img src=\"img/wd.png\"/></td>"); } else { out.print("<td><img src=\"img/yd.png\"/></td>"); } out.print("<td>" + m.getSending_time() + "</td>"); out.print("<td><a href=\"delete.jsp?id="+m.getEid()+"\">删除</a></td>"); out.print("<td><a href=\"write.jsp?reply="+m.getEid()+"\">回复</a></td></tr>"); %> <form action="main.jsp" method="post"> <input type="submit" value="返回主页"> </form> </tr> </table> </body> </html>