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实习第六天——SSM的理解以及用户管理系统的登陆功能实现

程序员文章站 2022-03-27 10:06:10
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SSM

SSM（Spring+SpringMVC+MyBatis）框架集由Spring、MyBatis两个开源框架整合而成（SpringMVC是Spring中的部分内容）。常作为数据源较简单的web项目的框架。

Spring
　　Spring就像是整个项目中装配bean的大工厂，在配置文件中可以指定使用特定的参数去调用实体类的构造方法来实例化对象。也可以称之为项目中的粘合剂。简单来说，Spring是一个轻量级的控制反转（IoC）和面向切面（AOP）的容器框架
　　Spring的核心思想是IoC（控制反转），即不再需要程序员去显式地`new`一个对象，而是让Spring框架帮你来完成这一切。
SpringMVC
　　SpringMVC在项目中拦截用户请求，它的核心Servlet即DispatcherServlet承担中介或是前台这样的职责，将用户请求通过HandlerMapping去匹配Controller，Controller就是具体对应请求所执行的操作。SpringMVC相当于SSH框架中struts。spring  MVC 分离了控制器、模型对象、分派器以及处理程序对象的角色，这种分离让它们更容易进行定制。
mybatis
　　mybatis是对jdbc的封装，它让数据库底层操作变的透明。mybatis的操作都是围绕一个sqlSessionFactory实例展开的。mybatis通过配置文件关联到各实体类的Mapper文件，Mapper文件中配置了每个类对数据库所需进行的sql语句映射。在每次与数据库交互时，通过sqlSessionFactory拿到一个sqlSession，再执行sql命令。MyBatis是一个基于Java的持久层框架。iBATIS提供的持久层框架包括SQL Maps和Data Access Objects（DAO）MyBatis 消除了几乎所有的JDBC代码和参数的手工设置以及结果集的检索。MyBatis 使用简单的 XML或注解用于配置和原始映射，将接口和 Java 的POJOs（Plain Old Java Objects，普通的 Java对象）映射成数据库中的记录。

       页面发送请求给控制器，控制器调用业务层处理逻辑，逻辑层向持久层发送请求，持久层与数据库交互，后将结果返回给业务层，业务层将处理逻辑发送给控制器，控制器再调用视图展现数据。

 

用户管理系统的登陆功能

环境搭建以及相应的配置和上次的（增删查改）用户管理系统类似

项目结构：

实习第六天——SSM的理解以及用户管理系统的登陆功能实现

 

控制层UserInfoController.java 片段

调用视图展现数据

package com.zhongruan.controller;
import com.zhongruan.bean.UserInfo;
...
...
import java.util.List;

@Controller
@RequestMapping("user")
public class UserInfoController {
    @Autowired
    IUserInfoService userInfoService;
    @RequestMapping("login.do")
    public ModelAndView login(UserInfo userInfo){
        boolean flag= userInfoService.login(userInfo);
        ModelAndView mv=new ModelAndView();
        if(flag)
            mv.setViewName("main");
        else
            mv.setViewName("../failer");
        return mv;

    }
}

服务层 IUserInfoService.java    登陆 接口

package com.zhongruan.service;
import com.zhongruan.bean.UserInfo;
import java.util.List;
public interface IUserInfoService {
    List<UserInfo> findAll();
    boolean login(UserInfo userInfo);
}

IUserInfoServiceImpl.java  登陆接口的实现

package com.zhongruan.service.impl;
import com.zhongruan.bean.UserInfo;
import com.zhongruan.dao.IUserInfoDao;
import com.zhongruan.service.IUserInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.xml.registry.infomodel.User;
import java.util.List;
@Service
public class IUserInfoServiceImpl implements IUserInfoService{
    @Autowired
    IUserInfoDao userInfoDao;
    @Override
    public boolean login(UserInfo userInfo) {
       UserInfo user= userInfoDao.login(userInfo);
       if(user!=null)
           return true;
       else
           return false;
    }
}

持久层IUserInfoDao.java   调用与数据库交互

package com.zhongruan.dao;
import com.zhongruan.bean.UserInfo;
import javax.jws.soap.SOAPBinding;
import java.util.List;
//dao层与MyBatis中的xml对应，SQL
public interface IUserInfoDao {
    UserInfo login(UserInfo userInfo);
}

UserInfoMapper.xml   与数据库交互

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.zhongruan.dao.IUserInfoDao" >
    <select id="login" resultType="com.zhongruan.bean.UserInfo"                             
        parameterType="com.zhongruan.bean.UserInfo">
        select * from userinfo where username=#{username} and password=#{password}
    </select>
</mapper>

前端：

index.jsp  主页索引

<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8"%>
<html>
<body>
<jsp:forward page="/login.jsp"></jsp:forward>
</body>
</html>

登陆页面：login.jsp

<%@ 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>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>中软ETC用户管理系统</title>
<meta
	content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"
	name="viewport">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/bootstrap/css/bootstrap.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/font-awesome/css/font-awesome.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/ionicons/css/ionicons.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/adminLTE/css/AdminLTE.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/iCheck/square/blue.css">
</head>
<body class="hold-transition login-page">
	<div class="login-box">
		<div class="login-logo">
			<a href="all-admin-index.html">中软<b>ETC</b>用户管理系统</a>
		</div>
		<!-- /.login-logo -->
		<div class="login-box-body">
			<p class="login-box-msg">登录系统</p>
			<form action="${pageContext.request.contextPath}/user/login.do" method="post">
				<div class="form-group has-feedback">
					<input type="text" name="username" class="form-control"
						placeholder="用户名"> <span
						class="glyphicon glyphicon-envelope form-control-feedback"></span>
				</div>
				<div class="form-group has-feedback">
					<input type="password" name="password" class="form-control"
						placeholder="密码"> <span
						class="glyphicon glyphicon-lock form-control-feedback"></span>
				</div>
				<div class="row">
					<div class="col-xs-8">
						<div class="checkbox icheck">
							<label><input type="checkbox"> 记住 下次自动登录</label>
						</div>
					</div>
					<!-- /.col -->
					<div class="col-xs-4">
						<button type="submit" class="btn btn-primary btn-block btn-flat">登录</button>
					</div>
					<!-- /.col -->
				</div>
			</form>
			<a href="#">忘记密码</a><br>
		</div>
		<!-- /.login-box-body -->
	</div>
	<!-- /.login-box -->
	<!-- jQuery 2.2.3 -->
	<!-- Bootstrap 3.3.6 -->
	<!-- iCheck -->
	<script
		src="${pageContext.request.contextPath}/plugins/jQuery/jquery-2.2.3.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap/js/bootstrap.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/iCheck/icheck.min.js"></script>
	<script>
		$(function() {
			$('input').iCheck({
				checkboxClass : 'icheckbox_square-blue',
				radioClass : 'iradio_square-blue',
				increaseArea : '20%' // optional
			});
		});
	</script>
</body>
</html>

登陆失败页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>

<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">

<title>数据 - AdminLTE2定制版</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">

<!-- Tell the browser to be responsive to screen width -->
<meta
	content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"
	name="viewport">


<!-- jQuery 2.2.3 -->
<!-- jQuery UI 1.11.4 -->
<!-- Resolve conflict in jQuery UI tooltip with Bootstrap tooltip -->
<!-- Bootstrap 3.3.6 -->
<!-- Morris.js charts -->
<!-- Sparkline -->
<!-- jvectormap -->
<!-- jQuery Knob Chart -->
<!-- daterangepicker -->
<!-- datepicker -->
<!-- Bootstrap WYSIHTML5 -->
<!-- Slimscroll -->
<!-- FastClick -->
<!-- iCheck -->
<!-- AdminLTE App -->
<!-- 表格树 -->
<!-- select2 -->
<!-- bootstrap color picker -->
<!-- bootstrap time picker -->
<!--<script src="${pageContext.request.contextPath}/${pageContext.request.contextPath}/${pageContext.request.contextPath}/plugins/timepicker/bootstrap-timepicker.min.js"></script>-->
<!-- Bootstrap WYSIHTML5 -->
<!--bootstrap-markdown-->
<!-- CK Editor -->
<!-- InputMask -->
<!-- DataTables -->
<!-- ChartJS 1.0.1 -->
<!-- FLOT CHARTS -->
<!-- FLOT RESIZE PLUGIN - allows the chart to redraw when the window is resized -->
<!-- FLOT PIE PLUGIN - also used to draw donut charts -->
<!-- FLOT CATEGORIES PLUGIN - Used to draw bar charts -->
<!-- jQuery Knob -->
<!-- Sparkline -->
<!-- Morris.js charts -->
<!-- Ion Slider -->
<!-- Bootstrap slider -->
<!-- 页面meta /-->

<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/bootstrap/css/bootstrap.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/font-awesome/css/font-awesome.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/ionicons/css/ionicons.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/iCheck/square/blue.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/morris/morris.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/jvectormap/jquery-jvectormap-1.2.2.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/datepicker/datepicker3.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/daterangepicker/daterangepicker.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/datatables/dataTables.bootstrap.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/treeTable/jquery.treetable.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/treeTable/jquery.treetable.theme.default.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/select2/select2.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/colorpicker/bootstrap-colorpicker.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/bootstrap-markdown/css/bootstrap-markdown.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/adminLTE/css/AdminLTE.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/adminLTE/css/skins/_all-skins.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/css/style.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/ionslider/ion.rangeSlider.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/ionslider/ion.rangeSlider.skinNice.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/bootstrap-slider/slider.css">
</head>

<body class="hold-transition skin-purple sidebar-mini">

	<div class="wrapper">

		<!-- 页面头部 -->
		<!-- 页面头部 -->
<header class="main-header">
	<!-- Logo -->
	<a href="all-admin-index.html" class="logo"> <!-- mini logo for sidebar mini 50x50 pixels -->
		<span class="logo-mini"><b>数据</b></span> <!-- logo for regular state and mobile devices -->
		<span class="logo-lg"><b>数据</b>后台管理</span>
	</a>
	<!-- Header Navbar: style can be found in header.less -->
	<nav class="navbar navbar-static-top">
		<!-- Sidebar toggle button-->
		<a href="#" class="sidebar-toggle" data-toggle="offcanvas"
			role="button"> <span class="sr-only">Toggle navigation</span>
		</a>

		<div class="navbar-custom-menu">
			<ul class="nav navbar-nav">

				<li class="dropdown user user-menu"><a href="#"
					class="dropdown-toggle" data-toggle="dropdown"> <img
						src="${pageContext.request.contextPath}/img/user2-160x160.jpg"
						class="user-image" alt="User Image"> <span class="hidden-xs">
							未登录
					</span>

				</a>
					<ul class="dropdown-menu">
						<!-- User image -->
						<li class="user-header"><img
							src="${pageContext.request.contextPath}/img/user2-160x160.jpg"
							class="img-circle" alt="User Image"></li>

						<!-- Menu Footer-->
						<li class="user-footer">
							<div class="pull-left">
								<a href="#" class="btn btn-default btn-flat">修改密码</a>
							</div>
							<div class="pull-right">
								<a href="${pageContext.request.contextPath}/logout.do"
									class="btn btn-default btn-flat">注销</a>
							</div>
						</li>
					</ul></li>

			</ul>
		</div>
	</nav>
</header>
<!-- 页面头部 /-->
		<!-- 页面头部 /-->

		<!-- 导航侧栏 -->
		<aside class="main-sidebar">
	<!-- sidebar: style can be found in sidebar.less -->
	<section class="sidebar">
		<!-- Sidebar user panel -->
		<div class="user-panel">
			<div class="pull-left image">
				<img src="${pageContext.request.contextPath}/img/user2-160x160.jpg"
					class="img-circle" alt="User Image">
			</div>
			<div class="pull-left info">
				<p>
					未登录
				</p>
				<a href="#"><i class="fa fa-circle text-success"></i> 在线</a>
			</div>
		</div>

		<!-- sidebar menu: : style can be found in sidebar.less -->
		<ul class="sidebar-menu">
			<li class="header">菜单</li>
			<li id="admin-index"><a
				href="${pageContext.request.contextPath}/pages/main.jsp"><i
					class="fa fa-dashboard"></i> <span>首页</span></a></li>

			<li class="treeview"><a href="#"> <i class="fa fa-cogs"></i>
					<span>系统管理</span> <span class="pull-right-container"> <i
						class="fa fa-angle-left pull-right"></i>
				</span>
			</a>
				<ul class="treeview-menu">

					<li id="system-setting"><a
						href="#"> <i
							class="fa fa-circle-o"></i> 用户管理
					</a></li>
					<li id="system-setting1"><a href="#">
							<i class="fa fa-circle-o"></i> 角色管理
					</a></li>

				</ul></li>
			<li class="treeview"><a href="#"> <i class="fa fa-cube"></i>
					<span>基础数据</span> <span class="pull-right-container"> <i
						class="fa fa-angle-left pull-right"></i>
				</span>
			</a>
				<ul class="treeview-menu">

					<li id="system-setting2"><a
						href="#">
							<i class="fa fa-circle-o"></i> 产品管理
					</a></li>

				</ul></li>

		</ul>
	</section>
	<!-- /.sidebar -->
</aside>
		<!-- 导航侧栏 /-->

		<!-- 内容区域 -->
		<div class="content-wrapper">
			<!-- Content Header (Page header) -->
			<section class="content-header">
				<h1>登录失败 页面</h1>

				<ol class="breadcrumb">
					<li><a href="${pageContext.request.contextPath}/index.jsp"><i
							class="fa fa-dashboard"></i> 首页</a></li>
					<li class="active">登录失败</li>
				</ol>

			</section>

			<!-- Main content -->
			<section class="content">
				<div class="error-page">
				

					<div class="error-content">
						
						<p>
							登录失败 , 你可以 <a href="${pageContext.request.contextPath}/login.jsp">返回到登录页面</a>
							重新登录
						</p>

						
					</div>
					<!-- /.error-content -->
				</div>
				<!-- /.error-page -->
			</section>
			<!-- /.content -->
		</div>
		<!-- 内容区域 /-->

		<!-- 底部导航 -->
		<footer class="main-footer">
			<div class="pull-right hidden-xs">
				<b>Version</b> 1.0.8
			</div>
			<strong>Copyright &copy; 2014-2017 <a
				href="http://www.lhl.cn">研究院研发部</a>.
			</strong> All rights reserved.
		</footer>
		<!-- 底部导航 /-->

	</div>


	<script
		src="${pageContext.request.contextPath}/plugins/jQuery/jquery-2.2.3.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/jQueryUI/jquery-ui.min.js"></script>
	<script>
		$.widget.bridge('uibutton', $.ui.button);
	</script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap/js/bootstrap.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/raphael/raphael-min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/morris/morris.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/sparkline/jquery.sparkline.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/jvectormap/jquery-jvectormap-1.2.2.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/jvectormap/jquery-jvectormap-world-mill-en.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/knob/jquery.knob.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/daterangepicker/moment.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/daterangepicker/daterangepicker.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/daterangepicker/daterangepicker.zh-CN.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/datepicker/bootstrap-datepicker.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/datepicker/locales/bootstrap-datepicker.zh-CN.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.all.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/slimScroll/jquery.slimscroll.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/fastclick/fastclick.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/iCheck/icheck.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/adminLTE/js/app.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/treeTable/jquery.treetable.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/select2/select2.full.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/colorpicker/bootstrap-colorpicker.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap-wysihtml5/bootstrap-wysihtml5.zh-CN.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap-markdown/js/bootstrap-markdown.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap-markdown/locale/bootstrap-markdown.zh.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap-markdown/js/markdown.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap-markdown/js/to-markdown.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/ckeditor/ckeditor.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/input-mask/jquery.inputmask.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/input-mask/jquery.inputmask.date.extensions.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/input-mask/jquery.inputmask.extensions.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/datatables/jquery.dataTables.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/datatables/dataTables.bootstrap.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/chartjs/Chart.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/flot/jquery.flot.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/flot/jquery.flot.resize.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/flot/jquery.flot.pie.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/flot/jquery.flot.categories.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/ionslider/ion.rangeSlider.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap-slider/bootstrap-slider.js"></script>
	<script>
		$(document).ready(function() {
			// 选择框
			$(".select2").select2();

			// WYSIHTML5编辑器
			$(".textarea").wysihtml5({
				locale : 'zh-CN'
			});
		});

		// 设置**菜单
		function setSidebarActive(tagUri) {
			var liObj = $("#" + tagUri);
			if (liObj.length > 0) {
				liObj.parent().parent().addClass("active");
				liObj.addClass("active");
			}
		}

		$(document).ready(function() {
			setSidebarActive("admin-500");
		});
	</script>
</body>

</html>

系统运行：

实习第六天——SSM的理解以及用户管理系统的登陆功能实现

成功登陆：

实习第六天——SSM的理解以及用户管理系统的登陆功能实现

登陆失败：

实习第六天——SSM的理解以及用户管理系统的登陆功能实现

相关标签： SSM

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