ora login
分类： 系统运维
1 数据库：
create database student;
use student;
create table user(
id int primary key auto_increment,
user varchar(50) not null,
pwd varchar(50) not null,
name varchar(50) not null,
*** varchar(50) not null,
age int(50) not null
);
2 index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() "://" request.getServerName() ":" request.getServerPort() path "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>欢迎来到学生管理系统</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<div align="center"> <font size=" 2" color="#FF6633">用户登录</font>
</div>
<form id="form1" name="form1" method="post" action="loginServlet">
<table width="357" border="0" align="center">
<tr>
<td width="128">用户名：</td>
<td width="219"><label>
<input name="user" type="text" id="user" />
</label></td>
</tr>
<tr>
<td>密 码：</td>
<td><label>
<input name="pwd" type="password" id="pwd" />
</label></td>
</tr>
<tr>
<td><label>
<input type="submit" name="Submit" value="登录" />
</label></td>
<td><label><a href="addUser.jsp">用户注册</a></label></td>
</tr>
</table>
<p> </p>
</form>
</body>
</html>
3 addUser.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() "://" request.getServerName() ":" request.getServerPort() path "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>用户注册</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<p align="center"><font size=" 3" color="#FF3300">用户注册</font></p>
<form id="form1" name="form1" method="post" action="addUserServlet">
<table width="340" border="0" align="center">
<tr>
<td width="141">用户名：</td>
<td width="189"><label>
<input name="user" type="text" id="user" />
</label></td>
</tr>
<tr>
<td>密码：</td>
<td><label>
<input name="pwd" type="password" id="pwd" />
</label></td>
</tr>
<tr>
<td>重输密码：</td>
<td><label>
<input name="pwd1" type="password" id="pwd1" />
</label></td>
</tr>
<tr>
<td>姓名：</td>
<td><label>
<input name="name" type="text" id="name" />
</label></td>
</tr>
<tr>
<td>性别：</td>
<td><label>
<input name="***" type="radio" value="男" checked="checked" />
男
<input type="radio" name="***" value="女" />
女</label></td>
</tr>
<tr>
<td>年龄：</td>
<td><label>
<input name="age" type="text" id="age" />
</label></td>
</tr>
<tr>
<td><label>
<input type="submit" name="Submit" value="提交" />
</label></td>
<td><label>
<input type="reset" name="Submit2" value="重置" />
</label></td>
</tr>
</table>
</form>
</body>
</html>
4 DAO.java 实现与数据库的连接用户名验证与用户名新建添加
package dao;
import getConnection.GetConnection;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import com.mysql.jdbc.ResultSet;
import bean.User;
public class Dao {
private Connection conn;
private PreparedStatement pstat;
String sql="";
/**
*
* 用户登录
*/
public boolean logoin(User user) throws SQLException{
conn = GetConnection.getConnection();
boolean i = false;
sql = "select * from user where user=? and pwd=?";
pstat = conn.prepareStatement(sql);
pstat.setString(1, user.getUser());
pstat.setString(2, user.getPwd());
ResultSet rs1 = (ResultSet) pstat.executeQuery();
if (rs1.next())
{
i = true;
rs1.close();
pstat.close();
}
else
{
i = false ;
rs1.close();
pstat.close();
}
conn.close();
return i;
}
/**
* 用户注册
*/
public void addUser(User user){
conn = GetConnection.getConnection();
sql = "insert into user values(?,?,?,?,?)";
try{
pstat = conn.prepareStatement(sql);
pstat.setString(1,user.getUser());
pstat.setString(2,user.getPwd());
pstat.setString(3,user.getName());
pstat.setString(4,user.get***());
pstat.setInt(5,user.getAge());
pstat.executeUpdate();
pstat.close();
conn.close();
}catch(SQLException e){
e.printStackTrace();
}
}
}
5 User.java
package bean;
public class User {
private String user;
private String pwd;
private String name;
private String ***;
private int age;
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String get***() {
return ***;
}
public void set***(String ***) {
this.*** = ***;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
6 GetConnection.java 实现与数据库之间的连接
package getConnection;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
/**
*
* 用JDBC的方法获得数据库的连接
*
*/
public class GetConnection {
//通过静态方法注册驱动，获得连接
public static Connection getConnection(){
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost/student";
Connection con = null;
try {
Class.forName(driver);
try {
con = DriverManager.getConnection(url,"root","");
} catch (SQLException e) {
e.printStackTrace();
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
System.out.println("已获得数据库的连接");
return con;
}
/*public static void main(String args[]){
getConnection();
}*/
}
7 addUserServlet.java
package servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import dao.Dao;
import bean.User;
public class addUserServlet extends HttpServlet {
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
doPost(request,response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
response.setCharacterEncoding("utf-8");
String user1 = request.getParameter("user");
String pwd = request.getParameter("pwd");
String name = new String(request.getParameter("name").getBytes("ISO8859_1"),"utf-8");
String *** = new String(request.getParameter("***").getBytes("ISO8859_1"),"utf-8");
String age1 = request.getParameter("age");
User user = new User();
user.setUser(user1);
user.setPwd(pwd);
user.setName(name);
user.set***(***);
int age;
if(age1!=null)
{
age = Integer.parseInt(age1);
user.setAge(age);
}
Dao dao = new Dao();
dao.addUser(user);
/* request.setAttribute("info",new String("<br><br><center><h1><font color=red>添加成功！恭喜！！" +
"</font></h1></center><br>"));
request.setAttribute("id", new String("a"));
request.setAttribute("denglu",new String("<br><br><center><a href = /jspDev/index.jsp target =_parent>登陆</href></center><br>"));*/
request.getRequestDispatcher("info.jsp").forward(request,response);
}
public void init() throws ServletException {
// Put your code here
}
}
8 loginServlet.java
package servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import bean.User;
import dao.Dao;
public class loginServlet extends HttpServlet {
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String name = new String (request.getParameter("user").getBytes("ISO8859_1"), "GBK");
String pwd = new String (request.getParameter("pwd").getBytes("ISO8859_1"),"UTF-8");
User user = new User();
user.setUser(name);
user.setPwd(pwd);
Dao dao = new Dao();
boolean isLogin;
try
{
isLogin = dao.logoin(user);
if(isLogin)
{
response.sendRedirect("MyJsp.jsp");
}else{
response.sendRedirect("index.jsp");
}
} catch (SQLException e)
{
e.printStackTrace();
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
}
public void init() throws ServletException {
}
}
1 数据库：
create database student;
use student;
create table user(
id int primary key auto_increment,
user varchar(50) not null,
pwd varchar(50) not null,
name varchar(50) not null,
*** varchar(50) not null,
age int(50) not null
);
2 index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() "://" request.getServerName() ":" request.getServerPort() path "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>欢迎来到学生管理系统</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<div align="center"> <font size=" 2" color="#FF6633">用户登录</font>
</div>
<form id="form1" name="form1" method="post" action="loginServlet">
<table width="357" border="0" align="center">
<tr>
<td width="128">用户名：</td>
<td width="219"><label>
<input name="user" type="text" id="user" />
</label></td>
</tr>
<tr>
<td>密 码：</td>
<td><label>
<input name="pwd" type="password" id="pwd" />
</label></td>
</tr>
<tr>
<td><label>
<input type="submit" name="Submit" value="登录" />
</label></td>
<td><label><a href="addUser.jsp">用户注册</a></label></td>
</tr>
</table>
<p> </p>
</form>
</body>
</html>
3 addUser.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() "://" request.getServerName() ":" request.getServerPort() path "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>用户注册</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<p align="center"><font size=" 3" color="#FF3300">用户注册</font></p>
<form id="form1" name="form1" method="post" action="addUserServlet">
<table width="340" border="0" align="center">
<tr>
<td width="141">用户名：</td>
<td width="189"><label>
<input name="user" type="text" id="user" />
</label></td>
</tr>
<tr>
<td>密码：</td>
<td><label>
<input name="pwd" type="password" id="pwd" />
</label></td>
</tr>
<tr>
<td>重输密码：</td>
<td><label>
<input name="pwd1" type="password" id="pwd1" />
</label></td>
</tr>
<tr>
<td>姓名：</td>
<td><label>
<input name="name" type="text" id="name" />
</label></td>
</tr>
<tr>
<td>性别：</td>
<td><label>
<input name="***" type="radio" value="男" checked="checked" />
男
<input type="radio" name="***" value="女" />
女</label></td>
</tr>
<tr>
<td>年龄：</td>
<td><label>
<input name="age" type="text" id="age" />
</label></td>
</tr>
<tr>
<td><label>
<input type="submit" name="Submit" value="提交" />
</label></td>
<td><label>
<input type="reset" name="Submit2" value="重置" />
</label></td>
</tr>
</table>
</form>
</body>
</html>
4 DAO.java 实现与数据库的连接用户名验证与用户名新建添加
package dao;
import getConnection.GetConnection;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import com.mysql.jdbc.ResultSet;
import bean.User;
public class Dao {
private Connection conn;
private PreparedStatement pstat;
String sql="";
/**
*
* 用户登录
*/
public boolean logoin(User user) throws SQLException{
conn = GetConnection.getConnection();
boolean i = false;
sql = "select * from user where user=? and pwd=?";
pstat = conn.prepareStatement(sql);
pstat.setString(1, user.getUser());
pstat.setString(2, user.getPwd());
ResultSet rs1 = (ResultSet) pstat.executeQuery();
if (rs1.next())
{
i = true;
rs1.close();
pstat.close();
}
else
{
i = false ;
rs1.close();
pstat.close();
}
conn.close();
return i;
}
/**
* 用户注册
*/
public void addUser(User user){
conn = GetConnection.getConnection();
sql = "insert into user values(?,?,?,?,?)";
try{
pstat = conn.prepareStatement(sql);
pstat.setString(1,user.getUser());
pstat.setString(2,user.getPwd());
pstat.setString(3,user.getName());
pstat.setString(4,user.get***());
pstat.setInt(5,user.getAge());
pstat.executeUpdate();
pstat.close();
conn.close();
}catch(SQLException e){
e.printStackTrace();
}
}
}
5 User.java
package bean;
public class User {
private String user;
private String pwd;
private String name;
private String ***;
private int age;
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String get***() {
return ***;
}
public void set***(String ***) {
this.*** = ***;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
6 GetConnection.java 实现与数据库之间的连接
package getConnection;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
/**
*
* 用JDBC的方法获得数据库的连接
*
*/
public class GetConnection {
//通过静态方法注册驱动，获得连接
public static Connection getConnection(){
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost/student";
Connection con = null;
try {
Class.forName(driver);
try {
con = DriverManager.getConnection(url,"root","");
} catch (SQLException e) {
e.printStackTrace();
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
System.out.println("已获得数据库的连接");
return con;
}
/*public static void main(String args[]){
getConnection();
}*/
}
7 addUserServlet.java
package servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import dao.Dao;
import bean.User;
public class addUserServlet extends HttpServlet {
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
doPost(request,response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
response.setCharacterEncoding("utf-8");
String user1 = request.getParameter("user");
String pwd = request.getParameter("pwd");
String name = new String(request.getParameter("name").getBytes("ISO8859_1"),"utf-8");
String *** = new String(request.getParameter("***").getBytes("ISO8859_1"),"utf-8");
String age1 = request.getParameter("age");
User user = new User();
user.setUser(user1);
user.setPwd(pwd);
user.setName(name);
user.set***(***);
int age;
if(age1!=null)
{
age = Integer.parseInt(age1);
user.setAge(age);
}
Dao dao = new Dao();
dao.addUser(user);
/* request.setAttribute("info",new String("<br><br><center><h1><font color=red>添加成功！恭喜！！" +
"</font></h1></center><br>"));
request.setAttribute("id", new String("a"));
request.setAttribute("denglu",new String("<br><br><center><a href = /jspDev/index.jsp target =_parent>登陆</href></center><br>"));*/
request.getRequestDispatcher("info.jsp").forward(request,response);
}
public void init() throws ServletException {
// Put your code here
}
}
8 loginServlet.java
package servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import bean.User;
import dao.Dao;
public class loginServlet extends HttpServlet {
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String name = new String (request.getParameter("user").getBytes("ISO8859_1"), "GBK");
String pwd = new String (request.getParameter("pwd").getBytes("ISO8859_1"),"UTF-8");
User user = new User();
user.setUser(name);
user.setPwd(pwd);
Dao dao = new Dao();
boolean isLogin;
try
{
isLogin = dao.logoin(user);
if(isLogin)
{
response.sendRedirect("MyJsp.jsp");
}else{
response.sendRedirect("index.jsp");
}
} catch (SQLException e)
{
e.printStackTrace();
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
}
public void init() throws ServletException {
}
}