JSP第十二次作业

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.lmq.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 javax.annotation.PreDestroy;

import com.lmq.entity.msg;
import com.sun.org.apache.regexp.internal.recompile;

public class msgDao extends BaseDao{
    
    public List<msg> listAll(String sendto) throws SQLException{
        List<msg> list =new ArrayList<msg>();
        Connection conn =getConnection();
        String sql="select * from msg where sendto=?";
        PreparedStatement pred =null;
        
        ResultSet rest=null;
        try {
            pred=conn.prepareStatement(sql);
            pred.setString(1, sendto);
            rest=pred.executeQuery();
            while (rest.next()) {
                msg msg=new msg();
                msg.setMsgid(rest.getInt("msgid"));
                msg.setUsername(rest.getString("username"));
                msg.setTitle(rest.getString("title"));
                msg.setMsgcontent(rest.getString("msgcontent"));
                msg.setState(rest.getInt("state"));
                msg.setSendto(rest.getString("sendto"));
                msg.setMsg_create_date(rest.getDate("msg_create_date"));
                list.add(msg);
            }
        } catch (Exception e) {
            // TODO: handle exception
        }
        finally{
            closeAll(conn, pred, rest);
        }
        return list;
    }
    
    public void changestate(Integer msgid){
        Connection conn =getConnection();
        
        String sql="update msg set state=1 where msgid=?";
        PreparedStatement pred=null;

        try {

            pred =conn.prepareStatement(sql);
            pred.setInt(1, msgid);
            pred.executeUpdate();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        finally{
            closeAll(conn, pred, null);
        }
    }
        public List<msg> showContent(Integer msgid) {
            List<msg> list=new ArrayList<msg>();
            Connection conn=getConnection();
            String sql="select * from msg where msgid=?";
            PreparedStatement pred=null;
            ResultSet rest=null;
            try {
                pred = conn.prepareStatement(sql);
                pred.setInt(1, msgid);
                rest =pred.executeQuery();
                while(rest.next()){
                    msg msg =new msg();
                    msg.setUsername(rest.getString("username"));
                    msg.setTitle(rest.getString("title"));
                    msg.setMsgcontent(rest.getString("msgcontent"));
                    msg.setMsg_create_date(rest.getDate("msg_create_date"));
                    list.add(msg);
                }
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            finally{
                closeAll(conn, pred, rest);
            }
            return list;
        }
        public void delmsg(Integer msgid){
            Connection conn =getConnection();
            
            String sql="delete from msg where msgid=?";
            PreparedStatement pred=null;

            try {

                pred =conn.prepareStatement(sql);
                pred.setInt(1, msgid);
                pred.executeUpdate();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            finally{
                closeAll(conn, pred, null);
            }
        }
        
        public void send(msg msg){
            Connection conn=getConnection();
            String sql="insert into msg(username,title,msgcontent,state,sendto,msg_create_date) values(?,?,?,0,?,?)";
            PreparedStatement ps=null;
            try {
                 ps=conn.prepareStatement(sql);
                 ps.setString(1, msg.getUsername());
                 ps.setString(2, msg.getTitle());
                 ps.setString(3, msg.getMsgcontent());
                 ps.setString(4, msg.getSendto());
                 ps.setDate(5, new java.sql.Date(new Date().getTime()));
                 ps.executeUpdate();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }finally{
                closeAll(conn, ps, null);
            }        
        }
}
<%@page import="com.lmq.entity.msg"%>
<%@page import="com.lmq.Dao.msgDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    request.setCharacterEncoding("utf-8");
    response.setCharacterEncoding("utf-8");
%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
        <%
            String magid =request.getParameter("msgid");
            Integer msgid =Integer.parseInt(magid);
             
             
            msgDao msgDao =new msgDao();
            msgDao.changestate(msgid);
            msg msg=new msg();
            List<msg> list =new ArrayList<msg>();
            list=msgDao.showContent(msgid);
            %>
            <table width="600px" border="2px solid red">
         
                <tr>
                    <th>发件人</th><th>标题</th><th>内容</th><th>发送时间</th>
                </tr>
                <%
                 
                 for(msg msg1:list){
                %>
                <tr>
                    <td><%out.print(msg1.getUsername()); %></td>
                    <td><%out.print(msg1.getTitle()); %></td>
                    <td><%out.print(msg1.getMsgcontent()); %></td>
                    <td><%out.print(msg1.getMsg_create_date()); %></td>
                </tr>
                <%} %>
         </table>
         <a href="zhuye.jsp">继续浏览</a>
  </body>
</html>
<%@page import="com.lmq.entity.msg"%>
<%@page import="com.lmq.Dao.msgDao"%>
<%@page import="sun.security.jgss.LoginConfigImpl"%>
<%@page import="com.lmq.Dao.usersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    request.setCharacterEncoding("utf-8");
    response.setCharacterEncoding("utf-8");
%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
        <%
            String msgid1=request.getParameter("msgid");
            Integer msgid=Integer.parseInt(msgid1);
            msgDao msgDao =new msgDao();
            msgDao.delmsg(msgid);
            response.sendRedirect("zhuye.jsp");
         %>
  </body>
</html>
<%@page import="java.util.List"%>
<%@page import="com.lmq.Dao.msgDao"%>
<%@page import="com.lmq.entity.msg"%>
<%@page import="sun.security.jgss.LoginConfigImpl"%>
<%@page import="com.lmq.Dao.usersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    request.setCharacterEncoding("utf-8");
    response.setCharacterEncoding("utf-8");
%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
        <%
        String uname=(String)session.getAttribute("uname");
        if(uname==null){
            out.print("您未登录,即将跳回登陆页.....");
            response.setHeader("refresh", "5;url=login.jsp");
        }else{
 %>
欢迎你<%=uname %>
<a href="loginout.jsp">退出登陆</a><br>
 
            <%
            msg msg=new msg();
            msgDao msgDao =new msgDao();
            List<msg> list =new ArrayList<msg>();
            list=msgDao.listAll(uname);
         %>
         邮件列表:
         <table width="600px" border="2px solid red">
         <%if(list.size()==0){
                    out.print("你没有邮件");
                }else{ %>
                <tr>
                    <th>id</th><th>发件人</th><th>标题</th><th>已读未读状态</th><th>收件人</th><th>发送时间</th><th colspan="2">操作</th>
                </tr>
                <%
                 
                 for(msg msg1:list){
                %>
                <tr>
                    <td><%out.print(msg1.getMsgid()); %></td>
                    <td><%out.print(msg1.getUsername()); %></td>
                     
                    <td><a href="domsgcontent.jsp?msgid=<%=msg1.getMsgid()%>"><%out.print(msg1.getTitle()); %></a></td>
                    <td><%out.print(msg1.getState()); %></td>
                    <td><%out.print(msg1.getSendto()); %></td>
                    <td><%out.print(msg1.getMsg_create_date()); %></td>
                    <td><a href="delmsg.jsp?msgid=<%=msg1.getMsgid()%>">删除</a></td>
                    <td><a href="send.jsp?username=<%=msg1.getUsername()%>">回复</a></td>
                </tr>
                <%}}} %>
         </table>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    request.setCharacterEncoding("utf-8");
    response.setCharacterEncoding("utf-8");
%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
        <script type="text/javascript">
            function dologin(){
                if(loginform.sendto.value==""){
                    alert("没有输入收件人");
                    return;
                }
                if(loginform.title.value==""){
                    alert("没有输入标题");
                    return;
                }
                if(loginform.content.value==""){
                    alert("没有输入内容");
                    return;
                }
                loginform.submit();
            }
        </script>
    <form name="loginform" action="dosend.jsp" method="post">
    收件人:<input type="text" name="sendto" value="<%=request.getParameter("username") %>"><br>
    主题: <input  type="text" name="title" ><br>
    内容  :<br><textarea rows="6" cols="50" name="content"></textarea>
    <br>
    <input type="submit" value="发送" onclick="dologin()">
    </form>
  </body>
</html>

 

posted @ 2022-05-22 23:09  xiaoQ1  阅读(3)  评论(0编辑  收藏  举报