Jsp第十次作业

1.实现 删除 回复邮件

<%@page import="com.dao.MsgDao"%>
<%@page import="com.entity.Msg"%>
<%@page import="com.dao.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("main2.jsp");
    
    
 %>
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 {
    // 1,插入邮件
    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);
        }

    }

    // 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);
        }

    }

    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("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;

    }
    //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 import="com.dao.MsgDao"%>
<%@page import="com.entity.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><a href="detail.jsp?id=<%=list.get(i).getMsgid()%>"><%=list.get(i).getMsgcontent() %></a>
            </td>
    <td><%
           if (list.get(i).getState() == 1) {
                out.print("已读");
            } else {
                out.print("未读");
            }
        %>
    </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>

 

 

 

 

 


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 import="com.dao.MsgDao"%>
<%@page import="com.entity.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><a href="detail.jsp?id=<%=list.get(i).getMsgid()%>"><%=list.get(i).getMsgcontent() %></a>
            </td>
    <td><%
           if (list.get(i).getState() == 1) {
                out.print("已读");
            } else {
                out.print("未读");
            }
        %>
    </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"%>
<%@ page import="com.entity.Msg"%>
<%@ page import="com.dao.MsgDao"%>
<%@ page import="com.dao.UsersDao"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'detail.jsp' starting page</title>
    
  </head>
  
  <body>
    <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="main2.jsp">返回</a>
</body>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>
<head>




<title></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>

 

posted @ 2022-05-21 16:03  计算机1904谢家俊  阅读(11)  评论(0编辑  收藏  举报