JSP第十二周
作者：互联网
package com.ym.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;
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;
}
public Msg(int msgid, String username, String title, String msgcontent,
int state, String sendto, Date msg_create_date) {
super();
this.msgid = msgid;
this.username = username;
this.title = title;
this.msgcontent = msgcontent;
this.state = state;
this.sendto = sendto;
this.msg_create_date = msg_create_date;
}
public Msg() {
super();
}
@Override
public String toString() {
return "Msg [msgid=" + msgid + ", username=" + username + ", sendto=" + sendto + ", title="
+ title + ", msg_create_date=" + msg_create_date + ", state=" + state + ", msgcontent="
+ msgcontent + "]";
}
}
package com.ym.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.ym.entity.Msg;
public class MsgDao extends BaseDao {
// 1，插入邮件
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);
}
}
// 2.删除邮件
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);
}
}
//(测试删除邮件的代码是否编写成功)
// public static void main(String[] args) {
// MsgDao md=new MsgDao();
// md.delMail(3);
//}
// 3.修改邮件状态
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);
}
}
// 4.按照接收者查询全部邮件
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()) {
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;
}
//5.实现阅读邮件功能
public Msg read(int id) {
Connection con = getConnection();
String sql = "select msgid,username,sendto,title,msgcontent,msg_create_date from msg where msgid=?";
PreparedStatement ps = null;
ResultSet rs = null;
try {
ps = con.prepareStatement(sql);
ps.setInt(1, id);
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.setSendto(rs.getString("sendto"));
m.setMsg_create_date(rs.getDate("msg_create_date"));
return m;
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
closeAll(con, ps, rs);
}
return null;
}
}
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="com.ym.entity.Msg"%>
<%@ page import="com.ym.dao.MsgDao"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'main.jsp' starting page</title>
</head>
<body bgcolor=#ffccff>
<%
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 PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'write.jsp' starting page</title>
</head>
<body>
<form action="dowrite.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"> <br> <a
href="main.jsp">返回</a>
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="com.ym.entity.Msg"%>
<%@ page import="com.ym.dao.MsgDao"%>
<%@ page import="com.ym.dao.UsersDao"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'dowrite.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String uname = (String) session.getAttribute("uname");
String sendto = request.getParameter("receiver");
String title = request.getParameter("title");
String content = request.getParameter("content");
Msg m = new Msg();
m.setMsgcontent(content);
m.setUsername(uname);
m.setSendto(sendto);
m.setTitle(title);
MsgDao md = new MsgDao();
md.addMsg(m);
out.print("发送成功.....");
response.setHeader("refresh", "3;url=main.jsp");
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="com.ym.entity.Msg"%>
<%@ page import="com.ym.dao.MsgDao"%>
<%@ page import="com.ym.dao.UsersDao"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'delete.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
int id = Integer.parseInt(request.getParameter("id"));
MsgDao md = new MsgDao();
md.delMail(id);
out.print("刪除成功......");
response.setHeader("refresh", "2;url=main.jsp");
//response.sendRedirect("main.jsp");
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="com.ym.entity.Msg"%>
<%@ page import="com.ym.dao.MsgDao"%>
<%@ page import="com.ym.dao.UsersDao"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'detail.jsp' starting page</title>
</head>
<body>
<body>
<%
request.setCharacterEncoding("utf-8");
String msgid = request.getParameter("id");
int idd = Integer.parseInt(msgid);
MsgDao md = new MsgDao();
md.update(idd);
Msg m =md.read(idd);
%>
<table>
<tr>
<td>发件人:</td>
<td><input type="text" name="username" style="border: none"
value="<%=m.getUsername()%>">
</td>
</tr>
<tr>
<td>主题:</td>
<td><input type="text" name="title" style="border: none"
value="<%=m.getTitle()%>">
</td>
</tr>
<tr>
<td>时间:</td>
<td><input type="text" name="msg_create_date" style="border: none"
value="<%=m.getMsg_create_date()%>">
</td>
</tr>
<tr>
<td>收件人:</td>
<td><input type="text" name="sendto" style="border: none"
value="<%=m.getSendto()%>">
</td>
</tr>
<tr>
<td>内容:</td>
<td><div style="border: none;outline: none;overflow: inherit;">
<%=m.getMsgcontent()%></div>
</td>
</tr>
</table>
<br>
<a href="main.jsp">返回</a>
</body>
</body>
</html>
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标签：第十二,ps,String,rs,create,JSP,msg,public 来源： https://www.cnblogs.com/boke123456/p/16284342.html