第12周作业

1.实现 删除 回复邮件

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。

 
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{    
     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);
            }
     
        }
         //(测试删除邮件的代码是否编写成功)
         //    public static void main(String[] args) {
         //    MsgDao md=new MsgDao();
        //    md.delMail(3);
        //}
     
     
        // 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("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;
        }
     
     
    }
package com.gd.entity;

import java.util.Date;

public class Msg {
      private int msgid;
        private String username;
        private String title;
        private String msgcontent;
        private int state;
        private String sendto;
        Date msg_create_date;
     
        public int getMsgid() {
            return msgid;
        }
     
        public void setMsgid(int msgid) {
            this.msgid = msgid;
        }
     
        public String getUsername() {
            return username;
        }
     
        public void setUsername(String username) {
            this.username = username;
        }
     
        public String getTitle() {
            return title;
        }
     
        public void setTitle(String title) {
            this.title = title;
        }
     
        public String getMsgcontent() {
            return msgcontent;
        }
     
        public void setMsgcontent(String msgcontent) {
            this.msgcontent = msgcontent;
        }
     
        public int getState() {
            return state;
        }
     
        public void setState(int state) {
            this.state = state;
        }
     
        public String getSendto() {
            return sendto;
        }
     
        public void setSendto(String sendto) {
            this.sendto = sendto;
        }
     
        public Date getMsg_create_date() {
            return msg_create_date;
        }
     
        public void setMsg_create_date(Date msg_create_date) {
            this.msg_create_date = msg_create_date;
        }
         
     
        public Msg(int msgid, String username, String title, String msgcontent,
                int state, String sendto, Date msg_create_date) {
            super();
            this.msgid = msgid;
            this.username = username;
            this.title = title;
            this.msgcontent = msgcontent;
            this.state = state;
            this.sendto = sendto;
            this.msg_create_date = msg_create_date;
        }
         
         
     
        public Msg() {
            super();
        }
     
        @Override
        public String toString() {
            return "Msg [msgid=" + msgid + ", username=" + username + ", sendto=" + sendto + ", title="
                    + title + ", msg_create_date=" + msg_create_date + ", state=" + state + ", msgcontent="
                    + msgcontent + "]";
        }
     
    }
package com.gd.entity;


public class Users {
    int id;
    String uname;
    String upwd;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getUname() {
        return uname;
    }
    public void setUname(String uname) {
        this.uname = uname;
    }
    public String getUpwd() {
        return upwd;
    }
    public void setUpwd(String upwd) {
        this.upwd = upwd;
    }

}
<%@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");
    }
 %>
<%@page import="com.gd.dao.MsgDao"%>
<%@page import="com.gd.entity.Msg"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<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 import="com.gd.dao.MsgDao"%>
<%@page import="com.gd.entity.Msg"%>
<%@page import="com.gd.dao.UsersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>
<head>




<title>My JSP 'index.jsp' starting page</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", "2;url=main.jsp");
        //response.sendRedirect("main.jsp");
    %>
     
</body>
</html>
<%@ page import="com.gd.entity.Msg"%>
<%@ page import="com.gd.dao.MsgDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>


<html>
  <head>
  
    
    <title>My JSP 'write.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"> <br> 
        <a href="main.jsp">返回</a>
 
    </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>


<html>
  <head>
   
    
    <title>My JSP 'Login.jsp' starting page</title>
    
    
  </head>
  
  <body>
   <h1>登录</h1>
    <script type="text/javascript">
        function validate(){
            if(loginForm.uname.value==""){
                alert("账号不能为空!");
                return;
            }
            if(loginForm.upwd.value==""){
                alert("密码不能为空!");
                return;
            }
            loginForm.submit();
        }
    </script>


    <form name="loginForm" action="dologin.jsp" method="post">
        
    用户名:<input type="text" name="uname" value="admin"><br> 
    密码: <input  type="password" name="upwd"  value="admin">
    
        <input type="button" value="登录" onClick="validate()">    





    </form>

    
  </body>
</html>
<%@page import="com.gd.dao.MsgDao"%>
<%@page import="com.gd.entity.Msg"%>
<%@page import="com.gd.dao.UsersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>


<html>
  <head>

    
    <title>My JSP 'detail.jsp' starting page</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>

 

posted @ 2022-05-21 14:09  ·梓清  阅读(14)  评论(0编辑  收藏  举报