jsp11

第十二周上机作业（邮件功能）的控制层代码改用为servlet实现。

package com.gd.dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.ResultSet;




public class BaseDao {
    //获取连接
    protected Connection getConnection(){
        Connection conn=null;
        try{
            Class.forName("com.mysql.jdbc.Driver");
            conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","lin0520...");
            
        }catch(Exception e){
            e.printStackTrace();
        }
        return conn;

}


// 关闭连接
    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();
        }
    }
}

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{
    //关于邮件的增删改查    
    //添加邮件(写邮件，回复邮件都调用，邮件状态为1(未读)，时间为系统当前时间)
    
    public void addMsg(msg m){
        Connection conn=getConnection();
        String sql="insert into msg(username,title,msgcontent,state,sendto,msg_create_date) values(?,?,?,1,?,?)";
        PreparedStatement ps=null;
        try {
             ps=conn.prepareStatement(sql);
             ps.setString(1, m.getUsername());
             ps.setString(2, m.getTitle());
             ps.setString(3, m.getMsgcontent());
             ps.setString(4, m.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);
        }        
    }
    public static void main(String[] args) {
        msgDao md=new msgDao();
        md.delMsg(4);
    }    
    
    //根据id删除邮件
    public void delMsg(int id){
        Connection con=getConnection();
        String sql="delete from msg where msgid="+id;
        PreparedStatement ps=null;
        try {
            ps=con.prepareStatement(sql);
            ps.executeUpdate();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            closeAll(con, ps, null);
        }
        
    }
    
    
    
    
    //根据id修改邮件状态（统一改成1）
    
    
    //根据收件人查看全部邮件
    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()){
                //每读取一行，创建一个msg对象，对象放到集合中
                msg m=new msg();
                m.setMsgid(rs.getInt(1));
                m.setUsername(rs.getString(2));
                m.setTitle(rs.getString(3));
                m.setMsgcontent(rs.getString(4));
                m.setState(rs.getInt(5));
                m.setSendto(rs.getString(6));
                m.setMsg_create_date(rs.getDate(7));
                list.add(m);                
            }            
            
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            closeAll(con, ps, rs);
        }        
        return list;
    }
    
    
    
    

}

package com.gd.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import com.gd.entity.users;
public class usersDao extends BaseDao{
//关于用户的增删改查
    public boolean denglu(String uname,String upwd){
        boolean f=false;
        Connection conn=getConnection();
        String sql=" select * from users where unmae=? and upwd=?";
        PreparedStatement ps = null;
        ResultSet rs= null;
        try {
        ps=    conn.prepareStatement(sql);
        ps.setString(1,uname);
        ps.setString(2,upwd);
        rs=ps.executeQuery();
        if(rs.next())
            f=true;
        } catch (SQLException e) {
            // TODO: handle exception
            e.printStackTrace();
        } finally{
            closeAll(conn,ps,rs);
        }
        return f;                
    }
    
    public void addUser(users u){
        
        
        
    }
}

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;
    private 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;
    }

}

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.msgDao"%>
<%@page import="com.gd.entity.users"%>
<%@page import="com.gd.dao.usersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    request.setCharacterEncoding("utf-8");
    int mid=Integer.parseInt(request.getParameter("mid"));
    MsgDao md=new MsgDao();
    md.delMsg(mid);
    request.getRequestDispatcher("main.jsp").forward(request, response);


%>

<%@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{
        response.sendRedirect("no.jsp");
    }


%>

<%@page import="com.gd.entity.users"%>
<%@page import="com.gd.dao.usersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    request.setCharacterEncoding("utf-8");
    String uname=request.getParameter("username");    
    String upwd=request.getParameter("password");
    String email=request.getParameter("email");
    
    usersDao ud=new usersDao();
    users u=new users(uname,upwd,email);
    ud.register(u);
    response.sendRedirect("login.jsp");


%>

<%@page import="com.gd.dao.msgDao"%>
<%@page import="com.gd.entity.msg"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    request.setCharacterEncoding("utf-8");
    String title = request.getParameter("title");
    String content = request.getParameter("content");
    String receiver = request.getParameter("sendto");
    String sender = (String) session.getAttribute("uname");

    msg m = new msg();
    m.setSendto(receiver);
    m.setUname(sender);
    m.setTitle(title);
    m.setMsgcontent(content);

    msgDao md = new msgDao();
    md.writeMsg(m);
    request.getRequestDispatcher("main.jsp").forward(request, response);
%>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'login.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
<form action="dologin.jsp" method="post">
用户名:<input type="text" name="uname" value="ls" /><Br>
密码 ：<input type="password" name="upwd" value="456"/><br>

<input type="submit" value="登录">
<a href="register.jsp" >注册</a>

</form>
  </body>
</html>

<%@page import="com.gd.entity.msg"%>
<%@page import="com.gd.dao.msgDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

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



</head>

<body>
    <%
        msgDao md = new msgDao();
        String uname = (String) session.getAttribute("uname");
        List<msg> list = md.getReceive(uname);
    %>
    欢迎你<%=uname%> <a href="write.jsp">写邮件</a>
    <table border="1">
    <tr>
    
    <td>标题    </td>
    
    <td>是否已读</td>
    <td>发件人</td>
    <td>时间</td>    
    <td>操作</td>
    <td>操作</td>
    </tr>
<%for(int i=0;i<list.size();i++){ %>    
    <tr>
    
    <td><a href="readMsg.jsp?mid=<%=list.get(i).getMsgid()%>"><%=list.get(i).getTitle() %></a></td>
    
    <td><%int x=list.get(i).getState();
            if(x==0){%>
            <img src="images/sms_readed.png">
            <%}else{ %>
            <img src="images/sms_unReaded.png">
            <%} %>
    </td>
    <td><%=list.get(i).getUname() %></td>
    <td><%=list.get(i).getMsg_create_date() %></td>
    <td><a href="dodel.jsp?mid=<%=list.get(i).getMsgid()%>">删除</a></td>
    <td><a href="write.jsp?reply=<%=list.get(i).getUname()%>">回复</td>
    
    
    </tr>
    
<%} %>
    
    
    </table>



</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'login.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
登录失败。
  </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>读短消息</title>        
  </head>
    <body>
        <div id="main">
            <div class="mainbox">
                <div class="title readMessage png"></div>
                <div class="menu">
                    <span>当前用户：<a href="main.jsp">${sessionScope.loginuser}</a></span>
                    <span><a href="UserServlet?action=findUsers">发短消息</a></span>
                    <span><a href="UserServlet?action=logout">退出</a></span>
                </div>
                <div class="content">
                    <div class="message">
                        <%
                        int mid=Integer.parseInt(request.getParameter("mid"));
                        msgDao md=new msgDao();
                        msg m=md.getMsgById(mid);
                        md.updateMsg(mid);
                         %>
                         
                         发件人<%=m.getUname() %><br>
                         发件时间<%=m.getMsg_create_date() %><br>
                         标题：<%=m.getTitle() %><br>
                         详情：<%=m.getMsgcontent() %><br>
                            </div>
                       <a href="write.jsp?reply=<%=m.getUname()%>">回复</a>
                       <a href="main.jsp">返回首页</a>
                    </div>
                </div>
            </div>
        </div>
    </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<head>

<title>学士后 在线短信平台</title>
<link type="text/css" rel="stylesheet" href="css/sms.css" />
<script type="text/javascript" src="scripts/jquery.js"></script>
</head>
<script type="text/javascript">
    function check(){
        var username = document.getElementById("username");
        var password = document.getElementById("password");
        var affirm = document.getElementById("affirm");
        var email = document.getElementById("email");
        if(username.value == ""){
            alert("用户名不能为空！");
            return false;
        }else if(password.value == ""){
            alert("密码不能为空！");
            return false;
        }else if(password.value != affirm.value){
            alert("两次密码不同！");
            return false;
        }else if(email.value == ""){
            alert("邮箱不能为空！");
            return false;
        }
        return true;
    }
</script>
<body>
<div id="regTitle" class="png"></div>
<div id="regForm" class="userForm png">

    <form action="doreg.jsp"  method="post">
        <dl>
          
            <dt>用 户 名：</dt>
            <dd><input type="text" name="username" /></dd>
            <dt>密　　码：</dt>
            <dd><input type="password" name="password" /></dd>
            <dt>确认密码：</dt>
            <dd><input type="password" name="affirm" /></dd>
            <dt>邮　　箱：</dt>
            <dd><input type="text" name="email" /></dd>
        </dl>
        <div class="buttons">
            <input  type="submit" name="register" value="注册 " /><input  type="reset" name="reset" value="重置 " />
        </div>
        <div class="goback"><a href="index.jsp" class="png">返回登录页</a></div>
    </form>
</div>
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'login.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
注册成功，<a href="login.jsp">返回到登录页面</a>
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'login.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
<form action="dowrite.jsp"  method="post">
收件人：<input type="text" name="sendto" value="<%=request.getParameter("reply") %>" ><br>
主题:<input type="text" name="title"><br>
内容:<textarea name="content"></textarea>
<input type="submit" value="发送">


</form>


  </body>
</html>