jsp10

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。

 1 package com.fyx.dao;
 2 
 3 import java.sql.Connection;
 4 
 5 import java.sql.PreparedStatement;
 6 import java.sql.ResultSet;
 7 import java.sql.SQLException;
 8 import java.util.ArrayList;
 9 import java.util.List;
10 import com.qmt.entity.Msg;
11 
12 public class MsgDao extends basedao{    
13     //插入邮件
14     
15     //删除邮件
16     
17     //修改邮件状态
18     
19     //按照接收者查询全部邮件
20     public List<Msg> getMailByReceiver(String name){
21         List<Msg> list=new ArrayList<Msg>();
22         Connection conn=getConnection();
23         String sql="select * from msg where sendto=?";
24         PreparedStatement ps;
25         ResultSet rs;
26         try {
27             ps = conn.prepareStatement(sql);
28             ps.setString(1, name);
29             rs=ps.executeQuery();
30             while(rs.next()){
31                 Msg m=new Msg();
32                 m.setMsgid(rs.getInt(1));
33                 m.setUsername(rs.getString(2));
34                 m.setTitle(rs.getString(3));
35                 m.setMsgcontent(rs.getString(4));
36                 m.setState(rs.getInt(5));
37                 m.setSendto(rs.getString(6));
38                 m.setMsg_create_date(rs.getDate(7));
39                 list.add(m);
40             }
41             
42             closeAll(conn, ps, rs);
43             
44         } catch (SQLException e) {
45             // TODO Auto-generated catch block
46             e.printStackTrace();
47         }        
48         return list;
49     }
50 }

  1 package com.fyx.dao;
  2 
  3 import java.sql.Connection;
  4 import java.sql.PreparedStatement;
  5 import java.sql.ResultSet;
  6 import java.sql.SQLException;
  7 import java.util.ArrayList;
  8 import java.util.Date;
  9 import java.util.List;
 10 
 11 import com.qmt.entity.Msg;
 12 
 13 
 14 
 15 public class MsgDao extends BaseDao {
 16     // 1，插入邮件
 17     public void addMsg(Msg m) {
 18         Connection con = getConnection();
 19         String sql = "insert into msg(username,title,msgcontent,state,sendto,msg_create_date) values(?,?,?,?,?,?)";
 20         PreparedStatement ps = null;
 21         try {
 22             ps = con.prepareStatement(sql);
 23             ps.setString(1, m.getUsername());
 24             ps.setString(2, m.getTitle());
 25             ps.setString(3, m.getMsgcontent());
 26             ps.setInt(4, 1);
 27             ps.setString(5, m.getSendto());
 28             ps.setDate(6, new java.sql.Date(new Date().getTime()));// 系统当前时间
 29             ps.executeUpdate();
 30         } catch (SQLException e) {
 31             // TODO Auto-generated catch block
 32             e.printStackTrace();
 33         } finally {
 34             closeAll(con, ps, null);
 35         }
 36 
 37     }
 38 
 39     // 2.删除邮件
 40     public void delMail(int id) {
 41         Connection conn = getConnection();
 42         String sql = "delete from msg where msgid=?";
 43         PreparedStatement ps = null;
 44         try {
 45             ps = conn.prepareStatement(sql);
 46             ps.setInt(1, id);
 47             ps.executeUpdate();
 48         } catch (SQLException e) {
 49             // TODO Auto-generated catch block
 50             e.printStackTrace();
 51         }finally{
 52             closeAll(conn, ps, null);
 53         }
 54 
 55     }
 56      //(测试删除邮件的代码是否编写成功)
 57      //    public static void main(String[] args) {
 58      //    MsgDao md=new MsgDao();
 59     //    md.delMail(3);
 60     //}
 61 
 62 
 63     // 3.修改邮件状态
 64     public void update(int id) {
 65         Connection con = getConnection();
 66         String sql = "update  msg set state='1' where msgid=?";
 67         PreparedStatement ps = null;
 68         try {
 69             ps = con.prepareStatement(sql);
 70             ps.setInt(1, id);
 71             ps.executeUpdate();
 72         } catch (SQLException e) {
 73             e.printStackTrace();
 74         } finally {
 75             closeAll(con, ps, null);
 76         }
 77     }
 78 
 79     // 4.按照接收者查询全部邮件
 80     public List<Msg> getMailByReceiver(String name) {
 81         List<Msg> list = new ArrayList<Msg>();
 82         Connection con = getConnection();
 83         String sql = "select * from msg where sendto=?";
 84         PreparedStatement ps=null;
 85         ResultSet rs=null;
 86         try {
 87             ps = con.prepareStatement(sql);
 88             ps.setString(1, name);
 89             rs = ps.executeQuery();
 90             while (rs.next()) {
 91                 Msg m = new Msg();
 92                 m.setMsgid(rs.getInt("msgid"));
 93                 m.setUsername(rs.getString("username"));
 94                 m.setTitle(rs.getString("title"));
 95                 m.setMsgcontent(rs.getString("msgcontent"));
 96                 m.setState(rs.getInt("state"));
 97                 m.setSendto(rs.getString("sendto"));
 98                 m.setMsg_create_date(rs.getDate("msg_create_date"));
 99                 list.add(m);
100             }
101         } catch (SQLException e) {
102             e.printStackTrace();
103         }finally{
104             closeAll(con, ps, rs);
105         }
106         return list;
107 
108     }
109     //5.实现阅读邮件功能
110     public Msg read(int id) {
111         Connection con = getConnection();
112         String sql = "select msgid,username,sendto,title,msgcontent,msg_create_date from msg where msgid=?";
113         PreparedStatement ps = null;
114         ResultSet rs = null;
115         try {
116             ps = con.prepareStatement(sql);
117             ps.setInt(1, id);
118             rs = ps.executeQuery();
119             while (rs.next()) {
120                 Msg m = new Msg();
121                 m.setMsgid(rs.getInt("msgid"));
122                 m.setUsername(rs.getString("username"));
123                 m.setTitle(rs.getString("title"));
124                 m.setMsgcontent(rs.getString("msgcontent"));
125                 m.setSendto(rs.getString("sendto"));
126                 m.setMsg_create_date(rs.getDate("msg_create_date"));
127                 return m;
128             }
129 
130         } catch (SQLException e) {
131             e.printStackTrace();
132         } finally {
133             closeAll(con, ps, rs);
134         }
135         return null;
136     }
137 
138 
139 }

 1 package com.fyx.dao;
 2 
 3 import java.sql.Connection;
 4 
 5 import java.sql.PreparedStatement;
 6 import java.sql.ResultSet;
 7 import java.sql.SQLException;
 8 
 9 public class UsersDao extends BaseDao {
10 
11     // 关于用户的增删改查
12 
13     // 1.登录
14     public boolean login(String uname, String upwd) {
15         boolean f = false;
16         Connection con = getConnection();
17         String sql = "select * from users where uname=? and upwd=?";
18         PreparedStatement ps = null;
19         ResultSet rs = null;
20         try {
21             ps = con.prepareStatement(sql);
22             ps.setString(1, uname);
23             ps.setString(2, upwd);
24             rs = ps.executeQuery();
25             if (rs.next())
26                 f = true;
27         } catch (SQLException e) {
28             e.printStackTrace();
29         } finally {
30             closeAll(con, ps, rs);
31         }
32         return f;
33     }
34 
35     // 2.注册
36     public int register(String uname, String upwd) {
37         Connection con = getConnection();
38         PreparedStatement ps = null;
39         int x = 0;
40         try {
41             String sql = "insert into users(uname,upwd) values(?,?)";
42             ps = con.prepareStatement(sql);
43             ps.setString(1, uname);
44             ps.setString(2, upwd);
45             x = ps.executeUpdate();
46         } catch (SQLException e) {
47             e.printStackTrace();
48         } finally {
49             closeAll(con, ps, null);
50         }
51         return x;
52     }
53 }

 1 package com.fyx.entity;
 2 
 3 import java.util.Date;
 4 
 5 public class Msg {
 6     private int msgid;
 7     private String username;
 8     private String title;
 9     private String msgcontent;
10     private int state;
11     private String sendto;
12     Date msg_create_date;
13 
14     public int getMsgid() {
15         return msgid;
16     }
17 
18     public void setMsgid(int msgid) {
19         this.msgid = msgid;
20     }
21 
22     public String getUsername() {
23         return username;
24     }
25 
26     public void setUsername(String username) {
27         this.username = username;
28     }
29 
30     public String getTitle() {
31         return title;
32     }
33 
34     public void setTitle(String title) {
35         this.title = title;
36     }
37 
38     public String getMsgcontent() {
39         return msgcontent;
40     }
41 
42     public void setMsgcontent(String msgcontent) {
43         this.msgcontent = msgcontent;
44     }
45 
46     public int getState() {
47         return state;
48     }
49 
50     public void setState(int state) {
51         this.state = state;
52     }
53 
54     public String getSendto() {
55         return sendto;
56     }
57 
58     public void setSendto(String sendto) {
59         this.sendto = sendto;
60     }
61 
62     public Date getMsg_create_date() {
63         return msg_create_date;
64     }
65 
66     public void setMsg_create_date(Date msg_create_date) {
67         this.msg_create_date = msg_create_date;
68     }
69     
70 
71     public Msg(int msgid, String username, String title, String msgcontent,
72             int state, String sendto, Date msg_create_date) {
73         super();
74         this.msgid = msgid;
75         this.username = username;
76         this.title = title;
77         this.msgcontent = msgcontent;
78         this.state = state;
79         this.sendto = sendto;
80         this.msg_create_date = msg_create_date;
81     }
82     
83     
84 
85     public Msg() {
86         super();
87     }
88 
89     @Override
90     public String toString() {
91         return "Msg [msgid=" + msgid + ", username=" + username + ", sendto=" + sendto + ", title="
92                 + title + ", msg_create_date=" + msg_create_date + ", state=" + state + ", msgcontent="
93                 + msgcontent + "]";
94     }
95 
96 }

 1 package com.fyx.entity;
 2 
 3 public class Users {
 4 
 5     private int id;
 6     private String uname;
 7     private String upwd;
 8 
 9     public int getId() {
10         return id;
11     }
12 
13     public void setId(int id) {
14         this.id = id;
15     }
16 
17     public String getUname() {
18         return uname;
19     }
20 
21     public void setUname(String uname) {
22         this.uname = uname;
23     }
24 
25     public String getUpwd() {
26         return upwd;
27     }
28 
29     public void setUpwd(String upwd) {
30         this.upwd = upwd;
31     }
32 
33 }

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4   <head>
 5     <title>My JSP 'reg.jsp' starting page</title>
 6     
 7   </head>
 8   
 9   <body>
10   <script type="text/javascript">
11         function validate() {
12             if (registerForm.uname.value == "") {
13                 alert("账号不能为空！");
14                 return;
15             }
16             if (registerForm.upwd.value == "") {
17                 alert("密码不能为空！");
18                 return;
19             }
20             registerForm.submit();
21         }
22     </script>
23 
24     <form name="registerForm" action="doreg.jsp" method="post">
25         用户名:<input type="text" name="uname"><br> 
26         密   码: <input type="password" name="upwd"><br> 
27         <input type="submit" value="注册"><hr>
28     </form><hr>
29     <a href="login.jsp">返回登录</a>
30 </body>
31 </html>

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 2 <%@ page import="com.qmt.dao.UsersDao"%>
 3 <%@ page import="com.qmt.dao.MsgDao"%>
 4 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 5 <html>
 6 <head>
 7 <title>My JSP 'doreg.jsp' starting page</title>
 8 
 9 </head>
10 
11 <body>
12 
13     <%
14         request.setCharacterEncoding("utf-8");
15         String uname = request.getParameter("uname");
16         String upwd = request.getParameter("upwd");
17 
18         UsersDao ud = new UsersDao();
19         MsgDao md = new MsgDao();
20         if (ud.register(uname, upwd) > 0) {
21             session.setAttribute("uname", uname);
22             request.getRequestDispatcher("login.jsp").forward(request,
23                     response);
24         } else {
25             out.print("注册失败，请重新注册.......");
26             response.setHeader("refresh", "3;url=reg.jsp");
27         }
28     %>
29 </body>
30 </html>

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4 <head>
 5 <title>My JSP 'login.jsp' starting page</title>
 6 
 7 </head>
 8 
 9 <body>
10     <script type="text/javascript">
11         function validate() {
12             if (loginForm.uname.value == "") {
13                 alert("账号不能为空！");
14                 return;
15             }
16             if (loginForm.upwd.value == "") {
17                 alert("密码不能为空！");
18                 return;
19             }
20             loginForm.submit();
21         }
22     </script>
23     <form name="loginForm" action="dologin.jsp" method="post">
24     用户名：<input type="text" name="uname" ><br>
25     密 码：<input type="password" name="upwd" ><br>
26            <input type="button" value="登录" onClick="validate()">
27     </form>
28     <hr>
29     <a href="reg.jsp">返回注册</a>
30 </body>
31 </html>

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 2 <%@ page import="com.qmt.dao.UsersDao"%>
 3 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 4 <html>
 5 <head>
 6 <title>My JSP 'dologin.jsp' starting page</title>
 7 
 8 </head>
 9 
10 <body>
11     <%
12         request.setCharacterEncoding("utf-8");
13         String uname = request.getParameter("uname");
14         String upwd = request.getParameter("upwd");
15         UsersDao ud = new UsersDao();
16         if (ud.login(uname, upwd)) {
17             session.setAttribute("uname",uname);
18             request.getRequestDispatcher("main.jsp").forward(
19                     request,response);
20         } else {
21             out.print("登录失败，即将跳回登录页......");
22             response.setHeader("refresh", "3;url=login.jsp");
23         }
24     %>
25 </body>
26 </html>

posted @ 2022-05-22 10:26 韩式小火锅阅读(18) 评论(0) 编辑收藏举报

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