jsp第十三周作业
1.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 Email.entityPackage;
import java.util.Date;
public class Email {
private int eid; //id
private String ename; //收件人
private String etitle; //标题
private String econtent; //内容
private int estate; //状态
private String efa; //发件人
private Date etime; //时间
public int getEid() {
return eid;
}
public void setEid(int eid) {
this.eid = eid;
}
public String getEname() {
return ename;
}
public void setEname(String ename) {
this.ename = ename;
}
public String getEtitle() {
return etitle;
}
public void setEtitle(String etitle) {
this.etitle = etitle;
}
public String getEcontent() {
return econtent;
}
public void setEcontent(String econtent) {
this.econtent = econtent;
}
public int getEstate() {
return estate;
}
public void setEstate(int estate) {
this.estate = estate;
}
public String getEfa() {
return efa;
}
public void setEfa(String efa) {
this.efa = efa;
}
public Date getEtime() {
return etime;
}
public void setEtime(Date etime) {
this.etime = etime;
}
}
package Email.entityPackage;
public class Users {
private int uid;
private String uname;
private String upwd;
public int getUid() {
return uid;
}
public void setUid(int uid) {
this.uid = uid;
}
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 Email.daoPackage;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
public class BaseDao {
//连接数据库
public Connection getConnection(){
Connection con=null;
try {
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","123456");
} catch (Exception e) {
e.printStackTrace();
}
return con;
}
//关闭数据库
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 (Exception e) {
e.printStackTrace();
}
}
}
package Email.daoPackage;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import Email.entityPackage.Email;
public class EmailDao extends BaseDao{
// 关于邮件的增删改查
// 1.添加邮件(写邮件，回复邮件都调用，邮件状态为0(未读)，时间为系统当前时间)
public void addEmail(Email email){
Connection con=getConnection();
String sql="insert into email(ename,etitle,econtent,estate,efa,etime) values(?,?,?,0,?,?)";
PreparedStatement ps=null;
try {
ps=con.prepareStatement(sql);
ps.setString(1, email.getEname());
ps.setString(2, email.getEtitle());
ps.setString(3, email.getEcontent());
ps.setString(4, email.getEfa());
ps.setDate(5, new java.sql.Date(new Date().getTime()));
ps.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
}finally{
closeAll(con, ps, null);
}
}
public static void main(String[] args) {
EmailDao ed=new EmailDao();
//ed.delEmail(6);
}
// 2.根据id删除邮件
public void delEmail(int id){
Connection con=getConnection();
String sql="delete from email where eid="+id;
PreparedStatement ps=null;
try {
ps=con.prepareStatement(sql);
ps.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
}finally{
closeAll(con, ps, null);
}
}
// 3.修改邮件状态
public void GauBian(int id){
Connection con=getConnection();
String sql="update email set estate='1' where eid=?";
PreparedStatement ps=null;
try {
ps=con.prepareStatement(sql);
ps.setInt(1, id);
ps.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
}finally{
closeAll(con, ps, null);
}
}
// 4.按照接收者查询全部邮件
public List<Email> getAllEmail(String name){
List<Email> EmailList=new ArrayList<Email>();
Connection con=getConnection();
String sql="select * from email where ename=?";
PreparedStatement ps=null;
ResultSet rs=null;
try {
ps=con.prepareStatement(sql);
ps.setString(1, name);
rs=ps.executeQuery();
while(rs.next()){
Email em=new Email();
em.setEid(rs.getInt(1));
em.setEname(rs.getString(2));
em.setEtitle(rs.getString(3));
em.setEcontent(rs.getString(4));
em.setEstate(rs.getInt(5));
em.setEfa(rs.getString(6));
em.setEtime(rs.getDate(7));
EmailList.add(em);
}
} catch (Exception e) {
e.printStackTrace();
}finally{
closeAll(con, ps, rs);
}
return EmailList;
}
// 5.查看一封邮件
public Email getOneEmail(int id){
Connection con=getConnection();
String sql="select eid,ename,etitle,econtent,efa,etime from email where eid=?";
PreparedStatement ps=null;
ResultSet rs=null;
try {
ps=con.prepareStatement(sql);
ps.setInt(1, id);
rs=ps.executeQuery();
while (rs.next()) {
Email em=new Email();
em.setEid(rs.getInt(1));
em.setEname(rs.getString(2));
em.setEtitle(rs.getString(3));
em.setEcontent(rs.getString(4));
em.setEfa(rs.getString(5));
em.setEtime(rs.getDate(6));
return em;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
closeAll(con, ps, rs);
}
return null;
}
}
package Email.daoPackage;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
public class UsersDao extends BaseDao{
//登录
public boolean DengLu(String name,String pwd) {
boolean f=false;
Connection con=getConnection();
String sql="select * from users where uname=? and upwd=?";
PreparedStatement ps=null;
ResultSet rs=null;
try {
ps=con.prepareStatement(sql);
ps.setString(1, name);
ps.setString(2, pwd);
rs=ps.executeQuery();
if(rs.next())
f=true;
} catch (Exception e) {
e.printStackTrace();
}finally{
closeAll(con, ps, rs);
}
return f;
}
//注册
public int ZhuCe(String name,String pwd){
int i=-1;
Connection con=getConnection();
String sql="insert into users(uname,upwd) values(?,?)";
PreparedStatement ps=null;
try {
ps=con.prepareStatement(sql);
ps.setString(1, name);
ps.setString(2, pwd);
i=ps.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
}finally{
closeAll(con, ps, null);
}
return i;
}
}
二
登录
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Email1.jsp</title>
</head>
<body>
<form action="panduan1.jsp" method="post" name="one">
请输入用户名：<input name="name" type="text"><br>
请输入密码： <input name="password" type="password"><br>
<input type="button" value="登录" onclick="denglu()">
<a href="Email2.jsp">注册新用户 </a>
<script type="text/javascript">
function denglu() {
if (one.name.value == "") {
alert("用户名不能为空！");
return;
}
if (one.password.value == "") {
alert("密码不能为空！");
return;
}
one.submit();
}
</script>
</form>
</body>
</html>
注册
<%@page import="Email.daoPackage.UsersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>panduan1.jsp</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String uname = request.getParameter("name");
String upassword = request.getParameter("password");
UsersDao ud = new UsersDao();
if (ud.DengLu(uname, upassword)) {
session.setAttribute("user", uname);
request.getRequestDispatcher("main.jsp").forward(request,response);
} else {
out.print("登陆失败，3秒后返回登录页！");
response.setHeader("refresh", "3;url=Email1.jsp");
}
%>
</body>
</html>
<%@page import="Email.daoPackage.UsersDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>panduan2.jsp</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String uname = request.getParameter("name");
String upassword1 = request.getParameter("password1");
UsersDao ud = new UsersDao();
int i = ud.ZhuCe(uname, upassword1);
if (i > 0) {
out.print("注册成功，3秒后跳转登录页！");
response.setHeader("refresh", "3;url=Email1.jsp");
} else {
out.print("注册失败，3秒后返回注册页！");
response.setHeader("refresh", "3;url=Email2.jsp");
}
%>
</body>
</html>
主页
<%@page import="Email.entityPackage.Email"%>
<%@page import="Email.daoPackage.EmailDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>main.jsp</title>
</head>
<body>
<%
EmailDao mail=new EmailDao();
String user=(String) session.getAttribute("user");
List<Email> MailList=mail.getAllEmail(user);
%>
欢迎你：<%=user %> <a href="Write.jsp">写邮件</a>
<br><br>
<table border="1px" cellpadding="15px" align="center">
<tr>
<td>编号</td>
<td>收件人</td>
<td>标题</td>
<td>状态</td>
<td>发件人</td>
<td>时间</td>
<td>操作</td>
<td>操作</td>
</tr>
<%for(int i=0;i<MailList.size();i++){ %>
<tr>
<td><%out.print(MailList.get(i).getEid()); %></td>
<td><%out.print(MailList.get(i).getEname());%></td>
<td><a href="Look.jsp?id=<%=MailList.get(i).getEid()%>"><%out.print(MailList.get(i).getEtitle()); %></a></td>
<td>
<%if(MailList.get(i).getEstate()==0){ %>
<img src="../images/weidu.png"/>
<%}else{ %>
<img src="../images/yidu.png"/>
<%} %>
</td>
<td><%out.print(MailList.get(i).getEfa()); %></td>
<td><%out.print(MailList.get(i).getEtime()); %></td>
<td><a href="Write.jsp?reply=<%=MailList.get(i).getEfa()%>">回复</a></td>
<td><a href="Del.jsp?id=<%=MailList.get(i).getEid()%>">删除</a></td>
</tr>
<%} %>
</table>
<br><a href="bye.jsp">退出登录</a>
</body>
</html>
写
<%@ 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="Wpanduan.jsp" method="post" >
收件人：<input type="text" name="shou" value="<%=request.getParameter("reply")%>"><br>
主 题： <input type="text" name="head"><br>
内 容：<br>
<textarea rows="10" cols="30" name="body"></textarea>
<br> <input type="submit" value="发送邮件">
<a href="main.jsp">返回</a>
</form>
</body>
</html>
<%@page import="Email.daoPackage.EmailDao"%>
<%@page import="Email.entityPackage.Email"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Wpanduan.jsp</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String name=(String)session.getAttribute("user");// 发件人在session中获取
String shou=request.getParameter("shou"); //收件人
String title=request.getParameter("head");
String content=request.getParameter("body");
Email e=new Email();
e.setEfa(name);
e.setEtitle(title);
e.setEcontent(content);
e.setEname(shou);
EmailDao ed=new EmailDao();
ed.addEmail(e);
out.print("发送成功，即将跳转到首页！");
response.setHeader("refresh", "3;url=main.jsp");
%>
</body>
</html>
查
<%@page import="Email.entityPackage.Email"%>
<%@page import="Email.daoPackage.EmailDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'Look.jsp' starting page</title>
</head>
<body>
<%
String id = request.getParameter("id");
int eid = Integer.parseInt(id);
EmailDao ed = new EmailDao();
ed.GauBian(eid);
Email email = ed.getOneEmail(eid);
%>
<h3>邮件详情</h3>
<table border="1px" cellpadding="15px">
<tr>
<td>发件人：</td>
<td><%=email.getEfa()%></td>
</tr>
<tr>
<td>主题：</td>
<td><%=email.getEtitle()%></td>
</tr>
<tr>
<td>内容：</td>
<td><%=email.getEcontent()%></td>
</tr>
<tr>
<td>时间：</td>
<td><%=email.getEtime()%></td>
</tr>
</table><br>
<a href="main.jsp">返回</a>
</body>
</html>
删
<%@page import="Email.daoPackage.EmailDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Del.jsp</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
int emailId=Integer.parseInt(request.getParameter("id"));
EmailDao ed=new EmailDao();
ed.delEmail(emailId);
response.sendRedirect("main.jsp");
%>
</body>
</html>
退
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'bye.jsp' starting page</title>
</head>
<body>
<%
out.print("退出成功，3秒后返回登录页！");
session.invalidate();
response.setHeader("refresh", "3;url=Email1.jsp");
%>
</body>
</html>
