package com.gd.dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class BaseDao {
//获取连接
protected Connection getConnection(){
Connection conn=null;
try {
Class.forName("com.mysql.jdbc.Driver");
// 2.建立连接
conn = DriverManager.getConnection(
"jdbc:mysql://localhost:3306/test", "root", "123456");
} 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 {
//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;
}
//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);
}
}
//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);
}
}
public void updateMsg(int id) {
Connection con = getConnection();
String sql = "update msg set state='0' where msgid=?";
PreparedStatement pred = null;
try {
pred = con.prepareStatement(sql);
pred.setInt(1, id);
pred.executeUpdate();
} catch (SQLException e1) {
e1.printStackTrace();
} finally {
closeAll(con, pred, null);
}
}
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;
}
}
package com.gd.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class UsersDao extends BaseDao {
// 登陆
public boolean login(String uname, String upwd) {
boolean f = false;
Connection conn = getConnection();
String sql = "select * from users where uname=? and upwd=?";
PreparedStatement ps = null;
ResultSet rs = null;
try {
ps = conn.prepareStatement(sql);
ps.setString(1, uname);// 第一个？赋值为name
ps.setString(2, upwd);
rs = ps.executeQuery();
if (rs.next())// 查到结果了
f = true;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
closeAll(conn, ps, rs);
}
return f;
}
// 注册
public int reg(String uname,String upwd){
int i=-1;
PreparedStatement pred=null;
Connection con=getConnection();
String sql="insert into users(uname,upwd)values(?,?)";
try {
pred= con.prepareStatement(sql);
pred.setString(1, uname);
pred.setString(2, upwd);
i=pred.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}finally{
closeAll(con, pred, null);
}
return i;
}
}
package com.gd.entity;
import java.util.Date;
public class Msg {
private Integer msgid;
private String username;
private String title;
private String msgcontent;
private int state;
private String sendto;
private Date msg_create_date;
public Msg() {
super();
// TODO Auto-generated constructor stub
}
public Msg(Integer 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 Integer getMsgid() {
return msgid;
}
public void setMsgid(Integer 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 {
private Integer id;
private String uname;
private String upwd;
public Users() {
super();
// TODO Auto-generated constructor stub
}
public Users(Integer id, String uname, String upwd) {
super();
this.id = id;
this.uname = uname;
this.upwd = upwd;
}
public Integer getId() {
return id;
}
public void setId(Integer 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;
}
}
package com.gd.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.gd.dao.UsersDao;
public class RegServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public RegServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to
* post.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
String uname = request.getParameter("uname");
String upwd = request.getParameter("upwd");
UsersDao ud = new UsersDao();
int i = ud.reg(uname, upwd);
if (i > 0) {
out.print("注册成功，即将跳到登录页.....");
response.setHeader("refresh", "2;url=denglu.jsp");
} else {
out.print("注册失败，即将跳回注册页.....");
response.setHeader("refresh", "2;url=reg.jsp");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException
* if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
package com.gd.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.gd.dao.UsersDao;
public class LoginServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public LoginServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
HttpSession session=request.getSession();
PrintWriter out = response.getWriter();
request.setCharacterEncoding("utf-8");
response.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("登录失败，即将跳回登录页.....");
response.setHeader("refresh", "5;url=denglu.jsp");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
package com.gd.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.gd.dao.MsgDao;
import com.gd.entity.Msg;
public class WriteServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public WriteServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
HttpSession session=request.getSession();
String uname=(String)session.getAttribute("uname");// 发件人在session中获取
String sendto=request.getParameter("sendto");
String title=request.getParameter("title");
String content=request.getParameter("content");
Msg m=new Msg();
m.setTitle(title);
m.setMsgcontent(content);
m.setUsername(uname);
m.setSendto(sendto);
MsgDao md=new MsgDao();
md.addMsg(m);
out.print("发送成功，即将跳回首页.....");
response.setHeader("refresh", "3;url=main.jsp");
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
package com.gd.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.gd.dao.MsgDao;
import com.gd.entity.Msg;
public class AnswerServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public AnswerServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String uname=request.getParameter("rely");
String sendto=request.getParameter("sendto");
String title=request.getParameter("title");
String content=request.getParameter("content");
Msg m=new Msg();
m.setTitle(title);
m.setMsgcontent(content);
m.setUsername(uname);
m.setSendto(sendto);
MsgDao md=new MsgDao();
md.addMsg(m);
out.print("发送成功，即将跳回首页.....");
response.setHeader("refresh", "3;url=main.jsp");
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'reg.jsp' starting page</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.upwd.value == "") {
alert('密码不能为空');
return;
}
form.submit();
}
</script>
<form action="RegServlet" 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="upwd" value="123456"></td>
</tr>
<tr>
<td><input type="button" value="注册" onclick="yz()"></td>
<td><a href="denglu.jsp">登录</a></td>
</tr>
</table>
</form>
</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 'denglu.jsp' starting page</title>
</head>
<body>
<h1>登录</h1>
<script type="text/javascript">
function validate() {
if (loginForm.uname.value == "") {
alert("账号不能为空!");
return;
}
if (loginForm.upwd.value == "") {
alert("密码不能为空!");
return;
}
loginForm.submit();
}
</script>
<form action="LoginServlet" method="post" name="loginForm">
<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="upwd" value="123456"></td>
</tr>
<tr>
<td><input type="button" value="登录" onClick="validate()"></td>
<td><a href="reg.jsp">立即注册</a></td>
</tr>
</table>
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.gd.entity.Msg"%>
<%@page import="com.gd.dao.MsgDao"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'main.jsp' starting page</title>
</head>
<body>
<%
MsgDao md = new MsgDao();
String uname = (String) session.getAttribute("uname");
List<Msg> list = md.getMailByReceiver(uname);
%>
欢迎你<%=uname%>
<a href="write.jsp">写邮件</a>
<a href="exit.jsp">退出登录</a>
<table border="1">
<tr>
<td>发件人</td>
<td>主题</td>
<td>状态</td>
<td>时间</td>
<td>操作</td>
<td>操作</td>
</tr>
<%
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()%>">
<%out.print(list.get(i).getTitle().toString());%>
</a>
</td>
<td>
<%
if (list.get(i).getState() == 1) {
%> <img src="images/sms_unReaded.png" /> <%
} else {
%> <img src="images/sms_readed.png" /> <%
}
%>
</td>
<td><%=list.get(i).getMsg_create_date()%></td>
<td><a href="answer.jsp?rely=<%=list.get(i).getUsername()%>">回复</a>
</td>
<td><a href="del.jsp?id=<%=list.get(i).getMsgid()%>">删除</a>
</td>
</tr>
<%
}
%>
</table>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("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="WriteServlet" method="post" name="form">
<table>
<tr>
<td>收件人</td>
<td><input type="text" name="sendto">
</td>
</tr>
<tr>
<td>主题</td>
<td><input type="text" name="title">
</td>
</tr>
<tr>
<td>内容</td>
<td><textarea rows="6" cols="20" name="content"></textarea>
</td>
</tr>
<tr>
<td><input type="submit" value="发送">
</td>
</tr>
</table>
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.gd.dao.MsgDao"%>
<%@page import="com.gd.entity.Msg"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String msgid = request.getParameter("id");
int idd = Integer.parseInt(msgid);
MsgDao md = new MsgDao();
md.updateMsg(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>
<a href="main.jsp">返回</a>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.gd.entity.Msg"%>
<%@page import="com.gd.dao.MsgDao"%>
<%@page import="com.gd.dao.UsersDao"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'del.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
int id=Integer.parseInt(request.getParameter("id"));
MsgDao md=new MsgDao();
md.delMsg(id);
out.print("删除成功、、、、、、、");
response.sendRedirect("main.jsp");
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'answer.jsp' starting page</title>
</head>
<body>
<form action="AnswerServlet" method="post" name="form">
<table>
<tr>
<td>收件人</td>
<td><input type="text" name="sendto" value="<%=request.getParameter("rely") %>">
</td>
</tr>
<tr>
<td>主题</td>
<td><input type="text" name="title">
</td>
</tr>
<tr>
<td>内容</td>
<td><textarea rows="6" cols="20" name="content"></textarea>
</td>
</tr>
<tr>
<td><input type="submit" value="发送">
</td>
</tr>
</table>
</form>
</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 'exit.jsp' starting page</title>
</head>
<body>
<%
session.invalidate();
response.sendRedirect("denglu.jsp");
%>
</body>
</html>
