首先声明这是一个非常简单的项目,只包含注册和登录。
有人说了,这么简单的项目,我瞧不上。确实!对于一些高手来说,这点东西不过是毛毛雨。
但是对于一个初学者来说,有一个简单易上手的项目可以吧Mybatis+Servlet+Mysql 整合起来,对于自己的学习不可不算是一个良好的契机。
学以致用,本文章旨在检验前面系列文章是否写的合格,结果是:
理论性太强,而实践太散,所以借着这篇文章,把实践的方便加强
不会的可以看这篇文章 http://t.csdn.cn/UahZN
mybatis+Servlet很显然需要用到二者的依赖,mybatis需要连接数据库,所以需要数据库的依赖,数据库则需要实体类,为了简便开发引入Lombok依赖。想要使用单元测试,则还需要引入junit依赖。
所以总共需求如下依赖
mybatis
servlet
mysql
lombok
junit
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.yougroupId>
<artifactId>JavaWeb-Demo-06artifactId>
<version>1.0-SNAPSHOTversion>
<packaging>warpackaging>
<name>JavaWeb-Demo-06 Maven Webappname>
<url>http://www.example.comurl>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<maven.compiler.source>1.7maven.compiler.source>
<maven.compiler.target>1.7maven.compiler.target>
properties>
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.11version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.5.7version>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>1.18.24version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.1.0version>
<scope>providedscope>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>8.0.30version>
dependency>
dependencies>
<build>
<finalName>JavaWeb-Demo-06finalName>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-clean-pluginartifactId>
<version>3.1.0version>
plugin>
<plugin>
<artifactId>maven-resources-pluginartifactId>
<version>3.0.2version>
plugin>
<plugin>
<artifactId>maven-compiler-pluginartifactId>
<version>3.8.0version>
plugin>
<plugin>
<artifactId>maven-surefire-pluginartifactId>
<version>2.22.1version>
plugin>
<plugin>
<artifactId>maven-war-pluginartifactId>
<version>3.2.2version>
plugin>
<plugin>
<artifactId>maven-install-pluginartifactId>
<version>2.5.2version>
plugin>
<plugin>
<artifactId>maven-deploy-pluginartifactId>
<version>2.8.2version>
plugin>
plugins>
pluginManagement>
build>
project>
参考自自己的文章《Mybatis的快速入门》 http://t.csdn.cn/3SXlb 《Mybatis的代理开发》http://t.csdn.cn/Bt8Xi
mybatis-config配置,主要包括两个点:
DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.cj.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/us80?useSSL=false&serverTimezone=UTC"/>
<property name="username" value="root"/>
<property name="password" value="200201203332"/>
dataSource>
environment>
environments>
<mappers>
<package name="com/you/Mapper"/>
mappers>
configuration>
这个知识点是漏网之鱼,没有意识到即使是使用注解配置sql语句,也需要接口绑定。
DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.you.Mapper.UserMapper">
mapper>
package com.you.Mapper;
import com.you.Dept.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import java.util.List;
public interface UserMapper {
@Select("select * from user where user_name = #{user_name} and user_pwd = #{user_pwd}")
public User selectUserByInfo(@Param("user_name") String user_name,@Param("user_pwd") String user_pwd);
@Select("select * from user")
public List<User> queryAllUsers();
@Insert("insert into user values(null,#{user_name},#{user_pwd},#{user_emil})")
public boolean registerUser(@Param("user_name") String user_name,@Param("user_pwd") String user_pwd,@Param("user_emil") String user_emil);
}
参考本人的文章 《idea集成Tomcat》 http://t.csdn.cn/6Uma5
处理登录的功能,需要注意的点:
package com.you.request;
import com.you.Dept.User;
import com.you.Mapper.UserMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Timer;
import java.util.TimerTask;
@WebServlet(urlPatterns = "/login")
public class loginRequset01 extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
/* 1、获取携带的用户名和密码 */
System.out.println("进来!!!");
req.setCharacterEncoding("UTF-8");
String username = req.getParameter("username");
String password = req.getParameter("password");
System.out.println("用户名:"+username);
System.out.println("密码:"+password);
String resource = "mybatis-config.xml";
InputStream inputStream = null;
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
User user1 = mapper.selectUserByInfo(username,password);
resp.setContentType("text/html;charset=UTF-8");
PrintWriter writer = resp.getWriter();
if(user1!=null)
{
resp.sendRedirect("/JavaWeb_Demo_06_war/index.html");
}else{
resp.sendRedirect("/JavaWeb_Demo_06_war/errorPage.html");
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doGet(req,resp);
}
}
处理注册的功能,需要注意的点:
package com.you.request;
import com.you.Dept.User;
import com.you.Mapper.UserMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
@WebServlet("/registerRequest01")
public class registerRequest01 extends HttpServlet {
@Override
protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
/* 1、获取携带的用户名、密码、邮箱 */
req.setCharacterEncoding("UTF-8");
String username = req.getParameter("username");
String password = req.getParameter("password");
String useremail = req.getParameter("useremail");
/* 2、连接数据库 */
String resource = "mybatis-config.xml";
InputStream inputStream = null;
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
/* 3、执行SQL语句 */
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
boolean user = mapper.registerUser(username, password, useremail);
resp.setContentType("text/html;charset=UTF-8");
PrintWriter writer = resp.getWriter();
if(user!=false)
{
sqlSession.commit();
resp.sendRedirect("/JavaWeb_Demo_06_war/transmitPage.html");
}else{
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doGet(req,resp);
}
}
DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<title>游坦之title>
<link rel="stylesheet" href="css/style.css">
head>
<body>
<div class="login-page">
<div class="form">
<form class="register-form" method="post" action="/JavaWeb_Demo_06_war/registerRequest01">
<input placeholder="用户名" name="username">
<input type="password" placeholder="密码" name="password">
<input placeholder="邮箱" name="useremail">
<button>注册button>
<p class="message">已有账号? <a href="javascript:">立即登录a>p>
form>
<form class="login-form" method="post" action="/JavaWeb_Demo_06_war/login">
<input placeholder="用户名" name="username">
<input type="password" placeholder="密码" name="password">
<button>登录button>
<p class="message">还没有账号?<a href="javascript:">立即注册a>p>
form>
div>
div>
<script src="js/jquery.min.js">script>
<script src="js/index.js">script>
body>
html>
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Titletitle>
head>
<body>
<div>
注册成功...
<span id="time">3span>
s后自动跳转至登录页面
div>
body>
<script src="js/transmitPage.js">script>
html>
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Documenttitle>
<link rel="stylesheet" href="css/index.css">
head>
<body>
<header class="contanier hd">
<img src="./image/博文尚美首页_slices/logo.png" alt="">
<ul>
<li>HOME li>
<li>ABOUT li>
<li>PROTFOLIOli>
<li>SERVICEli>
<li>NEWSli>
<li>CONTACTli>
ul>
header>
<div class="swiper-contianer">
<ul>
<li><img src="./image/banner.png" alt="">li>
ul>
<ol>
<li>li>
<li>li>
<li>li>
<li>li>
ol>
div>
<div class="services contanier">
<h2>服务范围h2>
<p class="text">OUR SERVICESp>
<div class="serList">
<ul>
<li>
<img src="./image/博文尚美首页_slices/mail1.png" alt="">
<p>1.web designp>
<p>企业品牌网站设计/手机网站制作<br />动画网站创意设计p>
li>
<li>
<img src="./image/博文尚美首页_slices/mail1.png" alt="">
<p>1.web designp>
<p>企业品牌网站设计/手机网站制作<br />动画网站创意设计p>
li>
<li>
<img src="./image/博文尚美首页_slices/mail1.png" alt="">
<p>1.web designp>
<p>企业品牌网站设计/手机网站制作<br />动画网站创意设计p>
li>
<li>
<img src="./image/博文尚美首页_slices/mail1.png" alt="">
<p>1.web designp>
<p>企业品牌网站设计/手机网站制作<br />动画网站创意设计p>
li>
ul>
div>
div>
<div class="container-fluid">
<div class="customer contanier">
<h2>{客户案例}h2>
<p class="text">With the best professional technology, to design the best innovative web sitep>
<div class="cusList">
<ul>
<li><img src="./image/20141121095216750.png" alt="">li>
<li><img src="./image/20141121095528549.png" alt="">li>
<li><img src="./image/20141121105856226.png" alt="">li>
ul>
<div class="btn"> VIEW MOREdiv>
div>
div>
div>
<div class="new contanier">
<h2>最新资讯h2>
<p class="text">TEH LATEST NEWSp>
<div class="newList">
<img src="./image/xs1.png" alt="">
<ul>
<li>
<div class="l">
<span>09span>
<span>Janspan>
div>
<div class="r">
<p>网站排名进入前三的技巧说明p>
<p>很多客户都会纳闷为什么自己的网站老是优化不到搜索引擎
首页,更不用说进首页前三了。那么网站优...p>
div>
li>
<li>
<div class="l">
<span>09span>
<span>Janspan>
div>
<div class="r">
<p>网站排名进入前三的技巧说明p>
<p>很多客户都会纳闷为什么自己的网站老是优化不到搜索引擎
首页,更不用说进首页前三了。那么网站优...p>
div>
li>
<li>
<div class="l">
<span>09span>
<span>Janspan>
div>
<div class="r">
<p>网站排名进入前三的技巧说明p>
<p>很多客户都会纳闷为什么自己的网站老是优化不到搜索引擎
首页,更不用说进首页前三了。那么网站优...p>
div>
li>
<li>
<div class="l">
<span>09span>
<span>Janspan>
div>
<div class="r">
<p>网站排名进入前三的技巧说明p>
<p>很多客户都会纳闷为什么自己的网站老是优化不到搜索引擎
首页,更不用说进首页前三了。那么网站优...p>
div>
li>
ul>
div>
div>
<footer class="contanier ft">
<div class="contanier">
<p>Copyright 2006- 2014 Bowenshangmei Culture All Rights Reservedp>
<ul>
<li>Home li>
<li>About li>
<li>Portfolio li>
<li>Contactli>
ul>
div>
footer>
body>
html>
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Titletitle>
head>
<body>
用户名或密码不对
<span id="time">3span>
秒后跳转到登录页面
body>
<script src="js/transmitPage.js">script>
html>
* {
padding: 0;
margin: 0;
box-sizing: border-box;
}
li {
list-style: none;
}
a {
text-decoration: none;
color: black;
}
body {
width: 100%;
font-family: ArialMT;
}
.contanier {
width: 1082px;
margin: 0 auto;
}
.container-fluid {
width: 100%;
}
.hd {
display: flex;
justify-content: space-between;
}
.hd img {
width: 162px;
height: 44px;
margin-top: 19px;
margin-bottom: 18px;
}
.hd ul {
display: flex;
margin-top: 36px;
width: 614px;
height: 10px;
margin-bottom: 35px;
}
.hd ul li {
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #646464;
margin-right: 58px;
}
.hd ul li:nth-child(6) {
margin-right: 0;
}
.swiper-contianer {
position: relative;
width: 100%;
}
.swiper-contianer ul {
height: 469px;
}
.swiper-contianer ul li {
height: 100%;
}
.swiper-contianer ul li img {
width: 100%;
height: 100%;
}
.swiper-contianer ol {
display: flex;
justify-content: center;
position: absolute;
bottom: 19px;
left: 50%;
transform: translateX(-50%);
}
.swiper-contianer ol li {
width: 12px;
height: 12px;
border-radius: 50%;
border: 2px solid #fff;
margin-right: 11px;
}
.swiper-contianer ol li:last-child {
margin-right: 0px;
}
.services {
text-align: center;
height: 407px;
padding-top: 61px;
}
.services h2 {
font-size: 20px;
font-family: Adobe Heiti Std;
font-weight: normal;
color: #363636;
line-height: 20px;
background: url(image/线条修饰.png) no-repeat 50%;
}
.services .text {
margin-top: 10px;
margin-bottom: 34px;
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #9F9F9F;
}
.services .serList ul {
display: flex;
justify-content: center;
width: 100%;
padding: 0 46px;
}
.services .serList ul li {
width: 202px;
margin-right: 60px;
}
.services .serList ul li img {
width: 102px;
height: 102px;
}
.services .serList ul li p {
font-size: 14px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #6D6D6D;
line-height: 22px;
}
.services .serList ul li p:nth-of-type(1) {
margin-top: 34px;
margin-bottom: 22px;
font-size: 18px;
font-family: Arial;
font-weight: bold;
color: #434343;
}
.services .serList ul li:nth-of-type(4) {
margin-right: 0;
}
.container-fluid {
background-color: #f8f8f8;
overflow: hidden;
}
.container-fluid .customer {
height: 460px;
text-align: center;
padding: 0 12px;
}
.container-fluid .customer h2 {
margin-top: 55px;
font-size: 20px;
font-family: Adobe Heiti Std;
font-weight: normal;
color: #66C5B4;
line-height: 20px;
background: url(image/线条修饰.png) no-repeat 50% 50%;
}
.container-fluid .customer p {
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #9F9F9F;
margin-top: 12px;
margin-bottom: 38px;
}
.container-fluid .customer ul {
display: flex;
margin-bottom: 36px;
}
.container-fluid .customer ul li {
margin-right: 19px;
}
.container-fluid .customer ul li:last-child(3) {
margin-right: 0;
}
.container-fluid .customer .btn {
margin: 0 auto;
width: 176px;
height: 37px;
text-align: center;
background: #66C5B4;
line-height: 37px;
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #FFFFFF;
border-radius: 18px;
}
.new {
text-align: center;
margin-bottom: 89px;
}
.new h2 {
margin-top: 68px;
font-size: 20px;
font-family: Adobe Heiti Std;
font-weight: normal;
color: #363636;
line-height: 20px;
background: url(image/线条修饰.png) no-repeat 50%;
}
.new .text {
margin-top: 11px;
font-size: 14px;
font-family: Arial;
font-weight: 400;
color: #9F9F9F;
margin-bottom: 58px;
}
.new .newList {
display: flex;
}
.new .newList img {
width: 234px;
height: 196px;
}
.new .newList ul {
display: flex;
flex-wrap: wrap;
}
.new .newList ul li {
display: flex;
}
.new .newList ul li .l {
width: 71px;
height: 70px;
}
.new .newList ul li .l span {
display: block;
}
.new .newList ul li .l span:first-child {
font-size: 39px;
font-family: Arial;
font-weight: bold;
color: #66C5B4;
}
.new .newList ul li .l span:last-child {
font-size: 20px;
font-family: Arial;
font-weight: 400;
color: #999999;
}
.new .newList ul li .r {
width: 310px;
margin-left: 20px;
}
.new .newList ul li .r p {
text-align: left;
}
.new .newList ul li .r p:first-child {
font-size: 14px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #3F3F3F;
}
.new .newList ul li .r p:last-child {
margin-top: 21px;
font-size: 12px;
font-family: NSimSun;
font-weight: 400;
color: #A4A4A4;
}
.new .newList ul li:nth-of-type(1) {
margin-bottom: 48px;
}
.new .newList ul li:nth-of-type(2) {
margin-bottom: 48px;
}
.ft {
width: 100%;
height: 52px;
line-height: 52px;
background-color: #66C5B4;
}
.ft .contanier {
display: flex;
justify-content: space-between;
}
.ft .contanier p {
font-size: 12px;
font-family: Arial;
font-weight: 400;
color: #FFFFFF;
}
.ft .contanier ul {
display: flex;
}
.ft .contanier ul li {
font-size: 12px;
font-family: Arial;
font-weight: 400;
color: #FFFFFF;
}
.ft .contanier ul li:nth-of-type(1)::after {
content: '|';
margin: 0 15px;
}
.ft .contanier ul li:nth-of-type(2)::after {
content: '|';
margin: 0 15px;
}
.ft .contanier ul li:nth-of-type(3)::after {
content: '|';
margin: 0 15px;
}
.login-page {
width: 360px;
padding: 8% 0 0;
margin: auto;
}
.form {
position: relative;
z-index: 1;
background: #FFFFFF;
max-width: 360px;
margin: 0 auto 100px;
padding: 45px;
text-align: center;
box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}
.form input {
font-family: "Roboto", sans-serif;
outline: 0;
background: #f2f2f2;
width: 100%;
border: 0;
margin: 0 0 15px;
padding: 15px;
box-sizing: border-box;
font-size: 14px;
}
.form button {
font-family: "Roboto", sans-serif;
text-transform: uppercase;
outline: 0;
background: #4CAF50;
width: 100%;
border: 0;
padding: 15px;
color: #FFFFFF;
font-size: 14px;
-webkit-transition: all 0.3 ease;
transition: all 0.3 ease;
cursor: pointer;
}
.form button:hover,.form button:active,.form button:focus {
background: #43A047;
}
.form .message {
margin: 15px 0 0;
color: #b3b3b3;
font-size: 12px;
}
.form .message a {
color: #4CAF50;
text-decoration: none;
}
.form .register-form {
display: none;
}
.container {
position: relative;
z-index: 1;
max-width: 300px;
margin: 0 auto;
}
.container:before, .container:after {
content: "";
display: block;
clear: both;
}
.container .info {
margin: 50px auto;
text-align: center;
}
.container .info h1 {
margin: 0 0 15px;
padding: 0;
font-size: 36px;
font-weight: 300;
color: #1a1a1a;
}
.container .info span {
color: #4d4d4d;
font-size: 12px;
}
.container .info span a {
color: #000000;
text-decoration: none;
}
.container .info span .fa {
color: #EF3B3A;
}
body {
background: #76b852; /* fallback for old browsers */
background: -webkit-linear-gradient(right, #76b852, #8DC26F);
background: -moz-linear-gradient(right, #76b852, #8DC26F);
background: -o-linear-gradient(right, #76b852, #8DC26F);
background: linear-gradient(to left, #76b852, #8DC26F);
font-family: "Roboto", sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
$('.message a').click(function(){
$('form').animate({height: "toggle", opacity: "toggle"}, "slow");
});
太多了,放不上。请去7去找
onload=function(){
setInterval(go, 1000);
};
var x=3; //利用了全局变量来执行
function go(){
x--;
if(x>0){
document.getElementById("time").innerHTML=x; //每次设置的x的值都不一样了。
}else{
location.href='/JavaWeb_Demo_06_war/login.html'; // 设置你的注册页面
}
}
1、 杨鑫 / login-register-template 扁平简洁的登录页面
2、顾大壮 / 博文尚美静态首页