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>
