第十一周作业
1.建库，建表2个
用户表（id,用户名，密码）
邮件表（id,发件人，收件人，标题，内容，发送时间，状态）
2.建model层
entity,dao包
3.登陆，注册，登陆后显示全部邮件
package glg;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class BaseDao {
public Connection getConnection() {
Connection con = null;
try {
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","990511");
} catch (Exception e) {
System.out.println("连接失败");
e.printStackTrace();
}
return con;
}
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 glg;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import glg2.Email;
public class EmailDao extends BaseDao{
public List<Email> getAll(String name){
List<Email>list=new ArrayList<Email>();
Connection con=getConnection();
PreparedStatement pred=null;
ResultSet resultSet=null;
String sql="select * from email where addressee=?";
try {
pred=con.prepareStatement(sql);
pred.setString(1, name);
resultSet=pred.executeQuery();
while(resultSet.next()){
Email email=new Email();
email.setId(resultSet.getInt(1));
email.setAddresser(resultSet.getString(2));
email.setAddressee(resultSet.getString(3));
email.setHead(resultSet.getString(4));
email.setContent(resultSet.getString(5));
email.setTime(resultSet.getDate(6));
email.setState(resultSet.getInt(7));
list.add(email);
}
} catch (SQLException e) {
e.printStackTrace();
}
return list;
}
}
package glg;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class UserDao extends BaseDao{
public int Register(String name,String pwd){
int i=-1;
PreparedStatement pred=null;
Connection con=getConnection();
String sql="insert into name(name,pwd)values(?,?)";
try {
pred= con.prepareStatement(sql);
pred.setString(1, name);
pred.setString(2, pwd);
i=pred.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}finally{
closeAll(con, pred, null);
}
return i;
}
public boolean Login(String name,String pwd){
boolean f=false;
PreparedStatement pred=null;
ResultSet resultSet=null;
Connection con=getConnection();
String sql="select * from name where name=? and pwd=?";
try {
pred=con.prepareStatement(sql);
pred.setString(1, name);
pred.setString(2, pwd);
resultSet=pred.executeQuery();
while(resultSet.next()){
f=true;
}
} catch (SQLException e) {
e.printStackTrace();
}
return f;
}
}
package glg2;
import java.util.Date;
public class Email {
private Integer id;
private String addresser;
private String addressee;
private String head;
private Date time;
private Integer state;
private String content;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getAddresser() {
return addresser;
}
public void setAddresser(String addresser) {
this.addresser = addresser;
}
public String getAddressee() {
return addressee;
}
public void setAddressee(String addressee) {
this.addressee = addressee;
}
public String getHead() {
return head;
}
public void setHead(String head) {
this.head = head;
}
public Date getTime() {
return time;
}
public void setTime(Date time) {
this.time = time;
}
public Integer getState() {
return state;
}
public void setState(Integer state) {
this.state = state;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public Email() {
super();
}
public Email(Integer id, String addresser, String addressee, String head, Date time,
Integer state, String content) {
super();
this.id = id;
this.addresser = addresser;
this.addressee = addressee;
this.head = head;
this.time = time;
this.state = state;
this.content = content;
}
}
package glg2;
public class Users {
private Integer id;
private String name;
private String pwd;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public Users() {
super();
}
public Users(Integer id, String name, String pwd) {
super();
this.id = id;
this.name = name;
this.pwd = pwd;
}
}
<%@page import="glg.UserDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML>
<html>
<head>
<base href="<%=basePath%>">
<title></title>
</head>
<body>
<h1>登录</h1>
<script>
function yz() {
if (form.name.value == null) {
alert('用户名不能为空');
return;
}
if (form.pwd.value == null) {
alert('密码不能为空');
return;
}
if (form.name.value != null && form.pwd.value != null) {
form.submit();
}
}
</script>
<form action="dologin.jsp" method="post" name="form">
<table>
<tr>
<td>用户名</td>
<td><input type="text" name="name"></td>
</tr>
<tr>
<td>密码</td>
<td><input type="password" name="pwd"></td>
</tr>
<tr>
<td><input type="button" value="登录" onclick="yz()"></td>
<td><a href="register.jsp">注册</a></td>
</tr>
</table>
</form>
</body>
</html>
<%@page import="glg.UserDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML>
<html>
<head>
<base href="<%=basePath%>">
<title></title>
</head>
<body>
<%
String name = request.getParameter("name");
String pwd = request.getParameter("pwd");
UserDao ud = new UserDao();
if(ud.Login(name, pwd)){
session.setAttribute("name", name);
request.getRequestDispatcher("main.jsp").forward(request, response);
}else{
out.print("登录失败，即将跳回登录页.....");
response.setHeader("refresh", "2;url=Login.jsp");
}
%>
</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>
<html>
<head>
<base href="<%=basePath%>">
<title>注册</title>
</head>
<body>
<h1>注册</h1>
<script>
function yz() {
if (form.name.value == "") {
alert('用户名不能为空');
return;
}
if (form.pwd.value == "") {
alert('密码不能为空');
return;
}
form.submit();
}
</script>
<form action="doregister.jsp" method="post" name="form">
<table>
<tr>
<td>用户名</td>
<td><input type="text" name="name">
</td>
</tr>
<tr>
<td>密码</td>
<td><input type="password" name="pwd">
</td>
</tr>
<tr>
<td><input type="button" value="注册" onclick="yz()">
</td>
<td><a href="Login.jsp">登录</a>
</td>
</tr>
</table>
</form>
</body>
</html>
<%@page import="glg.UserDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML>
<html>
<head>
<base href="<%=basePath%>">
<title></title>
</head>
<body>
<%
String name = request.getParameter("name");
String pwd = request.getParameter("pwd");
UserDao ud = new UserDao();
int i=ud.Register(name, pwd);
if(i>0){
out.print("注册成功，即将跳到登录页.....");
response.setHeader("refresh", "2;url=Login.jsp");
}else{
out.print("注册失败，即将跳回注册页.....");
response.setHeader("refresh", "2;url=register.jsp");
}
%>
</body>
</html>
<%@page import="glg2.Email"%>
<%@page import="glg.EmailDao"%>
<%@page import="glg.UserDao"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML>
<html>
<head>
<base href="<%=basePath%>">
<title></title>
</head>
<body>
<%
String name = (String) session.getAttribute("name");
EmailDao dao = new EmailDao();
List<Email> list = dao.getAll(name);
%>
欢迎<%=name%>
<br>
<br>
<table border="1px" cellspacing="0" cellpadding="30px">
<thead></thead>
<tr>
<th>发件人</th>
<th>标题</th>
<th>时间</th>
<th>状态</th>
</tr>
<tbody></tbody>
<%
for (int i = 0; i < list.size(); i++) {
%>
<tr>
<td><%out.print(list.get(i).getAddresser().toString()); %></td>
<td><%out.print(list.get(i).getHead().toString()); %></td>
<td><%out.print(list.get(i).getTime().toString()); %></td>
<td><%if(list.get(i).getState()==0){
out.print("<img src='img/w.png'></img>");
}else{
out.print("<img src='img/y.png'></img>");
}%></td>
</tr>
<%
}
%>
</table>
</body>
</html>
