JSP第十二周作业

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 {
    
    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);
        }

    }

    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);
        }
    }

    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;

    }

<%@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");
    }
 %>

<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 language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML>
<html>
<head>
<title>注册</title>
</head>
<body>
    <h1>注册</h1>
    <script>
        function yz() {
            if (form.uname.value == "") {
                alert('用户名不能为空');
                return;
            }
            if (form.password.value == "") {
                alert('密码不能为空');
                return;
            }
            form.submit();
        }
    </script>
    <form action="doregister.jsp" method="post" name="form">
        <table>
            <tr>
                <td>用户名</td>
                <td><input type="text" name="uname">
                </td>
            </tr>
            <tr>
                <td>密码</td>
                <td><input type="password" name="password">
                </td>
            </tr>
            <tr>
                <td>
                <input type="button" value="注册" onclick="yz()">
                </td>
                <td>
                <input type="submit" value="重置" >
                </td>
            </tr>
        </table>
    </form>
</body>
</html>

posted @ 2022-05-21 18:10 刘源丰阅读(12) 评论(0) 收藏举报

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JSP第十二周作业

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