本帖最后由 desehawk 于 2014-12-3 22:04 编辑
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本文为登陆模块,相信会Java的同学,应该不难
一、login.jsp登陆界面实现解压bootmetro-master.zip,然后将ootmetro-mastersrc下的assets文件夹拷贝到工程里。
bootmetro下载地址:https://github.com/aozora/bootmetro,使用说明:http://www.guoxiaoming.com/bootmetro/
创建head.jsp文件,用于将一些药固定引用的css、js文件放到这里,作为公共调用文件。
- <%@ page language="java" contentType="text/html; charset=UTF-8"
- pageEncoding="UTF-8"%>
-
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <head>
-
- <link rel="stylesheet" type="text/css" href="assets/css/bootmetro.css">
- <link rel="stylesheet" type="text/css" href="assets/css/bootmetro-responsive.css">
- <link rel="stylesheet" type="text/css" href="assets/css/bootmetro-icons.css">
- <link rel="stylesheet" type="text/css" href="assets/css/bootmetro-ui-light.css">
- <link rel="stylesheet" type="text/css" href="assets/css/datepicker.css">
-
- <!-- these two css are to use only for documentation -->
- <link rel="stylesheet" type="text/css" href="assets/css/site.css">
-
- <!-- Le fav and touch icons -->
- <link rel="shortcut icon" href="assets/ico/favicon.ico">
- <link rel="apple-touch-icon-precomposed" sizes="144x144" href="assets/ico/apple-touch-icon-144-precomposed.png">
- <link rel="apple-touch-icon-precomposed" sizes="114x114" href="assets/ico/apple-touch-icon-114-precomposed.png">
- <link rel="apple-touch-icon-precomposed" sizes="72x72" href="assets/ico/apple-touch-icon-72-precomposed.png">
- <link rel="apple-touch-icon-precomposed" href="assets/ico/apple-touch-icon-57-precomposed.png">
-
- <!-- All JavaScript at the bottom, except for Modernizr and Respond.
- Modernizr enables HTML5 elements & feature detects; Respond is a polyfill for min/max-width CSS3 Media Queries
- For optimal performance, use a custom Modernizr build: www.modernizr.com/download/ -->
- <script src="assets/js/modernizr-2.6.2.min.js"></script>
-
- <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-
-
-
- <title>Insert title here</title>
- </head>
-
- </html>
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创建login.jsp文件: - <%@ include file="head.jsp"%>
- <%@ page language="java" contentType="text/html; charset=UTF-8"
- pageEncoding="UTF-8"%>
-
-
- <body style="text-align:center;margin-bottom:100px;">
- <div class="navbar" >
- <div class="navbar-inner">
- <a class="brand" href="#" style="margin-left:200px;">网盘</a>
-
- </div>
- </div>
- <div style="text-align:left;margin:0px auto;margin-top:50px; width:1200px;height:500px;">
- <div style="float:left;width:800px; height:100%;background:#009900"></div>
- <div style="float:left;width:400px; height:100%; background:#00CC33">
- <fieldset>
- <form action="LoginServlet" method="post" class="form-horizontal" style="margin-top:150px;margin-left:100px;">
-
- 用户 <input type="text" id="inputEmail" name="username" >
- <br><br>
- 密码 <input type="pass<a href="http://www.it165.net/edu/ebg/" target="_blank" class="keylink">word</a>" id="inputPass<a href="http://www.it165.net/edu/ebg/" target="_blank" class="keylink">word</a>" name="password">
- <br><br>
- <button type="submit" class="btn">登陆</button>
- <button type="submit" class="btn">注册</button>
-
- </form>
- </fieldset>
- </div>
-
- </div>
-
- </body>
-
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启动tomcat服务器测试效果,想要更多绚丽的小姑,大家可以自己去实现。(这里还无法实现登陆)
二、连接数据库(1)将mysql-connector-java-commercial-5.1.25.jar复制到/WEB-INF/lib目录下。 (2)创建user表和添加数据 打开navicat for mysql 软件,连接hadoop数据库并创建user表,然后向表里添加3个数据。 三、创建操作数据库的model文件 (1)ConnDB.java - package com.model;
-
- import java.sql.Connection;
- import java.sql.DriverManager;
-
- public class ConnDB {
- private Connection ct = null;
- public Connection getConn(){
-
- try {
- //加载驱动
- Class.forName("com.mysql.jdbc.Driver");
-
- //得到连接
- ct = DriverManager.getConnection("jdbc:mysql://localhost:3306/hadoop?user=root&password=");
- } catch (Exception e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
-
-
- return ct;
- }
- }
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(2)UserBean.java
- package com.model;
-
- public class UserBean {
- String id;
- String username;
- String email;
- String password;
- public String getId() {
- return id;
- }
- public void setId(String id) {
- this.id = id;
- }
- public String getUsername() {
- return username;
- }
- public void setUsername(String username) {
- this.username = username;
- }
- public String getEmail() {
- return email;
- }
- public void setEmail(String email) {
- this.email = email;
- }
- public String getPassword() {
- return password;
- }
- public void setPassword(String password) {
- this.password = password;
- }
-
- }
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(3)UserBeanCl.java- package com.model;
-
- import java.sql.Connection;
- import java.sql.ResultSet;
- import java.sql.SQLException;
- import java.sql.Statement;
-
-
- public class UserBeanCl {
- private Statement sm = null;
- private Connection ct = null;
- private ResultSet rs = null;
-
-
- public void close(){
- try {
-
-
- if(sm != null){
- sm.close();
- sm = null;
- }
-
- if(ct != null){
- ct.close();
- ct = null;
- }
-
-
- if(rs != null){
- rs.close();
- rs = null;
- }
-
-
- }
- catch (SQLException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
-
-
-
- //检查登录用户是否合法
- public boolean checkUser(String user, String password){
- boolean b = false;
- try {
-
- //获得连接
- ct = new ConnDB().getConn();
- //创建statement
- sm = ct.createStatement();
-
- rs = sm.executeQuery("select * from user where username=""+user+""");
-
-
- if(rs.next()){
- //说明用户存在
- String pwd = rs.getString(3);
- if(password.equals(pwd)){
- //说明密码正确
- b = true;
- }else{
- b = false;
- }
-
- }else{
- b = false;
- }
- } catch (SQLException e) {
- e.printStackTrace();
- }finally{
- this.close();
- }
-
- return b;
- }
-
-
-
- }
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(4)创建LoginServlet文件处理登陆的用户
- package com.controller;
-
- import java.io.IOException;
-
- 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 org.apache.hadoop.fs.FileStatus;
- import org.apache.hadoop.mapred.JobConf;
-
-
-
- import com.model.*;
-
- /**
- * Servlet implementation class ListServlet
- */
- public class LoginServlet extends HttpServlet {
-
-
- /**
- * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
- */
- protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
- this.doPost(request, response);
- }
-
- /**
- * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
- */
- protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-
- String username = request.getParameter("username");
- String password = request.getParameter("password");
-
- UserBeanCl ubc = new UserBeanCl();
- if(ubc.checkUser(username, password)){
- //用户合法,跳转到界面
- HttpSession session = request.getSession();
- session.setAttribute("username", username);
-
- JobConf conf = HdfsDAO.config();
- HdfsDAO hdfs = new HdfsDAO(conf);
- FileStatus[] list = hdfs.ls("/"+username);
- request.setAttribute("list",list);
- request.getRequestDispatcher("index.jsp").forward(request, response);
- }else{
- //用户不合法,调回登录界面,并提示错误信息
- request.getRequestDispatcher("login.jsp").forward(request, response);
- }
-
-
-
- }
-
- }
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(5)重启tomcat服务器测试,这次就可以实现用户登陆页面跳转了(从login.jsp跳转到index.jsp)
网盘代码地址.rar
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