[JavaWeb]简单的邮件系统


public class mail {private Integer id;private String Sender;private String addressee;private String title;private String content;private String time;private Integer state;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getSender() {return Sender;}public void setSender(String sender) {Sender = sender;}public String getAddressee() {return addressee;}public void setAddressee(String addressee) {this.addressee = addressee;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getContent() {return content;}public void setContent(String content) {this.content = content;}public String getTime() {return time;}public void setTime(String time) {this.time = time;}public Integer getState() {return state;}public void setState(Integer state) {this.state = state;}@Overridepublic String toString() {return "mail{" +"id=" + id +", Sender='" + Sender + '\'' +", addressee='" + addressee + '\'' +", title='" + title + '\'' +", content='" + content + '\'' +", time='" + time + '\'' +", state=" + state +'}';}
}


public class MailUsers {private int id;private String username;private String password;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}@Overridepublic String toString() {return "MailUsers{" +"id=" + id +", username='" + username + '\'' +", password='" + password + '\'' +'}';}
}

二.连接数据库以及相关操作


import java.sql.*;public class mail_BaseDao {protected Connection getConnection() {Connection conn = null;try {Class.forName("com.mysql.cj.jdbc.Driver");conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mailbox", "root", "123456");} catch (Exception e) {e.printStackTrace();}return conn;}protected void closeAll(Connection con, PreparedStatement ps, ResultSet rs) {try {if (rs != null)rs.close();if (ps != null)ps.close();if (con != null)con.close();} catch (SQLException e) {e.printStackTrace();}}
}


import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;public class mail_UserDao extends mail_BaseDao{//--------------------用户登录---------------------public boolean login(String name, String pwd) {boolean f = false;Connection conn = getConnection();String sql = "select * from tb_user where username=? and password=?";PreparedStatement ps = null;ResultSet rs = null;try {ps = conn.prepareStatement(sql);ps.setString(1, name);ps.setString(2, pwd);rs = ps.executeQuery();if (rs.next())f = true;} catch (SQLException e) {e.printStackTrace();} finally {closeAll(conn, ps, rs);}return f;}//--------------------用户注册--------------------public void reg(String username, String password) {Connection conn = getConnection();PreparedStatement ps = null;try {String sql = "insert into tb_user(username,password) values(?,?)";ps = conn.prepareStatement(sql);ps.setString(1, username);ps.setString(2, password);ps.executeUpdate();} catch (SQLException e) {e.printStackTrace();} finally {closeAll(conn, ps, null);}}
}


import com.own.mywebdemo.Week5_Login_connecor.BaseDao;
import org.jetbrains.annotations.NotNull;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;public class MailDao extends mail_BaseDao {//--------------------查询所有邮件--------------------public List<mail> getMailByReceiver(String name){List<mail> list=new ArrayList<mail>();Connection conn=getConnection();String sql="select * from tb_mail where addressee=?";PreparedStatement ps=null;ResultSet rs=null;try {ps = conn.prepareStatement(sql);ps.setString(1, name);rs=ps.executeQuery();while(rs.next()){mail m=new mail();m.setId(rs.getInt(1));m.setSender(rs.getString(2));m.setAddressee(rs.getString(3));m.setTitle(rs.getString(4));m.setContent(rs.getString(5));m.setTime(rs.getString(6));m.setState(rs.getInt(7));list.add(m);}} catch (SQLException e) {e.printStackTrace();}finally{closeAll(conn, ps, rs);}return list;}// --------------------插入邮件--------------------public void addMail(mail m) {Connection conn = getConnection();String sql = "insert into tb_mail(Sender,addressee,title,content,time,state) values(?,?,?,?,?,?)";PreparedStatement ps = null;try {ps = conn.prepareStatement(sql);ps.setString(1, m.getSender());ps.setString(2, m.getAddressee());ps.setString(3, m.getTitle());ps.setString(4, m.getContent());ps.setDate(5, new java.sql.Date(new Date().getTime()));// 系统当前时间ps.setInt(6, 0);ps.executeUpdate();} catch (SQLException e) {e.printStackTrace();} finally {closeAll(conn, ps, null);}}// --------------------删除邮件--------------------public void deleteMail(int id) {Connection conn = getConnection();String sql = "delete from tb_mail where id=?";PreparedStatement ps = null;try {ps = conn.prepareStatement(sql);ps.setInt(1, id);ps.executeUpdate();} catch (SQLException e) {e.printStackTrace();}finally{closeAll(conn, ps, null);}}//--------------------更新邮件状态--------------------public void updataMail(int id){Connection conn = getConnection();String sql = "update tb_mail set state=1 where id=?";PreparedStatement ps = null;try {ps = conn.prepareStatement(sql);ps.setInt(1, id);ps.executeUpdate();} catch (SQLException e) {e.printStackTrace();}finally{closeAll(conn, ps, null);}}}

三.登录

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>登录</title>
</head>
<body>
<script type="text/javascript">function check() {if (login.account.value==""){alert("请输入账号!");return;}else if(login.psw.value=="") {alert("请输入密码!");return;}login.submit();}
</script>
<form action="checkLog.jsp" method="post" name="login">账号:<input type="text" name="account"><br>密码:<input type="password" name="psw"><br><input type="button" value="登录" onclick="check()">
</form><br>
<form action="Register.jsp" method="post"><input type="submit" value="立即注册账户">
</form>
</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>Title</title>
</head>
<body>
<%String account=request.getParameter("account");String psw=request.getParameter("psw");mail_UserDao mail_userDao = new mail_UserDao();if (mail_userDao.login(account,psw)){session.setAttribute("account",account);request.getRequestDispatcher("LogSuccess.jsp").forward(request,response);}else {request.getRequestDispatcher("LogFail.jsp").forward(request,response);}
%>
</body>
</html>

四.注册

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>注册</title>
</head>
<body>
<script type="text/javascript">function check() {if (login.account.value==""){alert("请输入账号!");return;}else if(login.psw.value=="") {alert("请输入密码!");return;}else if(login.psw1.value=="") {alert("请再次输入密码!");return;}var pwd = document.getElementById("pwd").value;var pwd1 = document.getElementById("pwd1").value;if (pwd==pwd1){alert("注册成功!");login.submit();}else {alert("两次输入密码不一样!");return;}}
</script>
<form action="checkReg.jsp" method="post" name="login">请输入账号:<input type="text" name="account"><br>请输入密码:<input type="password" name="psw" id="pwd"><br>请再次输入密码:<input type="password" name="psw1" id="pwd1"><br><input type="button" value="注册" onclick="check()">
</form>
<form action="Login.jsp" method="post"><input type="submit" value="已有账号?前往登录">
</form>
</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>Title</title>
</head>
<body>
<%String account=request.getParameter("account");String psw=request.getParameter("psw");String psw1=request.getParameter("psw1");if (psw.equals(psw1)) {mail_UserDao mail_userDao = new mail_UserDao();mail_userDao.reg(account,psw);request.getRequestDispatcher("Login.jsp").forward(request,response);} else {request.getRequestDispatcher("Register.jsp").forward(request,response);}
%>
</body>
</html>

五.登陆失败

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>登陆失败</title>
</head>
<body>
<h1>登陆失败</h1>
</body>
</html>

六.登陆成功后的主界面,显示该用户所有邮件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>我的邮件</title>
</head>
<body>
<%String account = (String) session.getAttribute("account");MailDao mailDao = new MailDao();List<mail> mails = mailDao.getMailByReceiver(account);
%>
<h1>欢迎!<%=account%>
</h1>
<form action="write.jsp" method="post"><input type="submit" value="写邮件">
</form>
<table border="1"><tr><td>发件人</td><td>标题</td><td>状态</td><td> </td><td> </td><td> </td><td>时间</td></tr><%for (int i = 0; i < mails.size(); i++) {mail m = mails.get(i);%><tr><td><%out.print(m.getSender());%></td><td><%out.print(m.getTitle());%></td><td><%if (m.getState() == 1) {out.print("已读");} else {out.print("未读");}%></td><td><a href="DetailMail.jsp?sender=<%=m.getSender()%>&title=<%=m.getTitle()%>&content=<%=m.getContent()%>&time=<%=m.getTime()%>&mailId=<%=m.getId()%>">查看</a></td><td><a href="write.jsp?reply=<%=m.getSender()%>">回复</a></td><td><a href="DeleteMail.jsp?mailId=<%=m.getId()%>">删除</a></td><td><%out.print(m.getTime());%></td></tr><%}%>
</table>
</body>
</html>

七.写邮件以及回复邮件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>写邮件</title>
</head>
<body>
<%String account = (String) session.getAttribute("account");
%>
<h1>欢迎!<%=account%></h1>
<form action="checkWrite.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 contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>Title</title>
</head>
<body><%String sender = (String) session.getAttribute("account");String addressee=request.getParameter("receiver");String title=request.getParameter("title");String content=request.getParameter("content");mail m = new mail();m.setSender(sender);m.setAddressee(addressee);m.setTitle(title);m.setContent(content);MailDao md = new MailDao();md.addMail(m);out.print("发送成功!3秒后返回");response.setHeader("refresh", "3;url=LogSuccess.jsp");%>
</body>
</html>

八.查看邮件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>邮件内容</title>
</head>
<body>
<%int mailId=Integer.parseInt(request.getParameter("mailId"));String sender = request.getParameter("sender");String title = request.getParameter("title");String content = request.getParameter("content");String time = request.getParameter("time");MailDao md = new MailDao();md.updataMail(mailId);
%>发件人:<%out.print(sender);%><br>
主题:<%out.print(title);%><br>
内容:<%out.print(content);%><br>
时间:<%out.print(time);%><br><a href="LogSuccess.jsp">返回主界面</a>
</body>
</html>

九.删除邮件(点击删除按钮即可删除)

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>Title</title>
</head>
<body>
<%int mailId=Integer.parseInt(request.getParameter("mailId"));MailDao md = new MailDao();md.deleteMail(mailId);response.sendRedirect("LogSuccess.jsp");
%>
</body>
</html>

十.数据库表结构

1 .用户表

2.邮件表

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[JavaWeb]简单的邮件系统

目录

一.创建实体类

二.连接数据库以及相关操作

三.登录

四.注册

五.登陆失败

六.登陆成功后的主界面,显示该用户所有邮件

七.写邮件以及回复邮件

八.查看邮件

九.删除邮件(点击删除按钮即可删除)

十.数据库表结构

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