第十二周作业
<%@page import="com.gd.dao.MsgDao"%> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% 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", "3;url=main.jsp"); //response.sendRedirect("main.jsp"); %> </body> </html>
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.Date; import java.util.List; import com.gd.entity.Msg; public class MsgDao extends BaseDao { // 1，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); } } // 2.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); } } // 3.修改邮件状态 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); } } // 4.按照接收者查询全部邮件 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(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) { e.printStackTrace(); }finally{ closeAll(con, ps, rs); } return list; } //5.实现阅读邮件功能 public Msg read(int id) { Connection con = getConnection(); String sql = "select msgid,username,sendto,title,msgcontent,msg_create_date from msg where msgid=?"; PreparedStatement ps = null; ResultSet rs = null; try { ps = con.prepareStatement(sql); ps.setInt(1, id); 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.setSendto(rs.getString("sendto")); m.setMsg_create_date(rs.getDate("msg_create_date")); return m; } } catch (SQLException e) { e.printStackTrace(); } finally { closeAll(con, ps, rs); } return null; } }
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</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"> <br> <a href="main.jsp">返回</a> </form> </body> </html>
<%@page import="com.gd.entity.Msg"%> <%@page import="com.gd.dao.MsgDao"%> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% 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", "3;url=main.jsp"); %> </body> </html>
<%@page import="com.gd.entity.Msg"%> <%@page import="com.gd.dao.MsgDao"%> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% request.setCharacterEncoding("utf-8"); String msgid = request.getParameter("id"); int idd = Integer.parseInt(msgid); MsgDao md = new MsgDao(); md.update(idd); Msg m =md.read(idd); %> <table> <tr> <td>发件人:</td> <td><input type="text" name="username" style="border: none" value="<%=m.getUsername()%>"> </td> </tr> <tr> <td>主题:</td> <td><input type="text" name="title" style="border: none" value="<%=m.getTitle()%>"> </td> </tr> <tr> <td>时间:</td> <td><input type="text" name="msg_create_date" style="border: none" value="<%=m.getMsg_create_date()%>"> </td> </tr> <tr> <td>收件人:</td> <td><input type="text" name="sendto" style="border: none" value="<%=m.getSendto()%>"> </td> </tr> <tr> <td>内容:</td> <td><div style="border: none;outline: none;overflow: inherit;"> <%=m.getMsgcontent()%></div> </td> </tr> </table> <br> <a href="main.jsp">返回</a> </body> </html>
