Spring security 集成ldap服务，实现统一验证

<span style="font-size:18px;">先说一下Spring security 是基于spring的一个强大的安全验证模块，它提供了一组可以在Spring应用上下文中配置的Bean，充分利用了Spring IoC，DI（控制反转Inversion of Control ,DI:Dependency Injection 依赖注入）和AOP（面向切面编程）功能，为应用系统提供声明式的安全访问控制功能。</span>

LDAP是轻量目录访问协议，基于tcp/ip协议，一般为企业的基本信息的访问提供一个统一的访问方式，它存储的数据是以树形结构存储的，因此，访问速度超快，但是相对的存储速度很慢。当然，你肯定也不能使用sql语句了

首先说一下所需要的jar包，当然也有maven配置，网上应该有很多

spring-security-config

spring-security-core

spring-security-ldap

spring-security-taglibs

spring-security-web

好吧，开始要先配置spring-security,由于本身就是基于spring的，配置起来也很简单

首先在web,xml中配置一个security的filter：

<filter>

<filter-name>springSecurityFilterChain</filter-name>

<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>

</filter>

<filter-mapping>

<filter-name>springSecurityFilterChain</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

然后在spring-mvc文件里配置一个bean

<bean id="ldapAuthProvider" class="org.springframework.security.ldap.authentication.LdapAuthenticationProvider">

<constructor-arg>

<bean class="org.springframework.security.ldap.authentication.BindAuthenticator">

<constructor-arg ref="contextSource"/>

<property name="userSearch">

<bean id="userSearch" class="org.springframework.security.ldap.search.FilterBasedLdapUserSearch">

<constructor-arg index="0" value=""/>

<constructor-arg index="1" value="(uid={0})"/>

<constructor-arg index="2" ref="contextSource"/>

</bean>

</property>

</bean>

</constructor-arg>

<constructor-arg>

<bean class="org.springframework.security.ldap.userdetails.DefaultLdapAuthoritiesPopulator">

<constructor-arg ref="contextSource"/>

<constructor-arg value="" />

<property name="defaultRole" value="ROLE_USER"/>

</bean>

</constructor-arg>

</bean>

同时需要配置ldap数据源：

<bean id="contextSource" class="org.springframework.security.ldap.DefaultSpringSecurityContextSource">

<constructor-arg value="ldap://192.168.0.1:389/dc=gnetis,dc=com"/>

<property name="userDn" value="cn=Manager,dc=gnetis,dc=com" />

<property name="password" value="admin"/>

</bean>

好的，然后还有一个spring-security.xml需要创建并配置：

<?xml version="1.0" encoding="UTF-8"?>

<beans:beans xmlns="http://www.springframework.org/schema/security"

xmlns:beans="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">

<!-- spring security -->

<http pattern="/login.jsp" security="none"/>

<http pattern="/resources/**" security="none"/>

<!-- 不启用安全验证 -->

<!-- <http pattern="/*" security="none"/> -->

<http auto-config='true'>

<intercept-url pattern="/login.jsp" access="IS_AUTHENTICATED_ANONYMOUSLY"/>

<intercept-url pattern="/**" access="ROLE_USER" />

<form-login login-page="/login.jsp" login-processing-url="/loginProcess"

authentication-failure-url="/login.jsp?login_error=1"

default-target-url="/home/index" always-use-default-target="true" />

<logout logout-success-url="/login.jsp" delete-cookies="JSESSIONID"/>

<!-- Uncomment to limit the number of sessions a user can have -->

<session-management invalid-session-url="/login.jsp">

<concurrency-control max-sessions="1" error-if-maximum-exceeded="false" />

</session-management>

</http>

<authentication-manager>

<authentication-provider ref="ldapAuthProvider"></authentication-provider>

</authentication-manager>

</beans:beans>

一定要注意 xsi:schemaLocation的url地址的填写，否则各种错误。

其中，login.jsp是默认进入页面，home/index是默认页面的路径，

然后将在spring-mvc里配置的bean配置在authentication-manager里面，记得要写login.jsp,如：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>

<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>

<%@ page import="org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter" %>

<%@ page import="org.springframework.security.core.AuthenticationException" %>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE html>

<html lang="en">

<head>

<base href="<%=basePath%>">

<meta charset="utf-8">

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<meta name="viewport" content="width=device-width, initial-scale=1">

<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->

<meta name="description" content="">

<meta name="author" content="">

<link rel="icon" href="<%=basePath%>/resources/dist/img/favicon.ico">

<title>XXXXX</title>

<!-- Bootstrap core CSS -->

<link href="<%=basePath%>/resources/dist/css/bootstrap.min.css" rel="stylesheet">

<!-- Custom styles for this template -->

<link href="<%=basePath%>/resources/dist/css/signin.css" rel="stylesheet">

<!-- Just for debugging purposes. Don't actually copy these 2 lines! -->

<!--[if lt IE 9]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]-->

<script src="<%=basePath%>/resources/dist/js/ie-emulation-modes-warning.js"></script>

<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->

<!--[if lt IE 9]>

<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>

<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>

<![endif]-->

</head>

<body style="position:absolute;height:100%;background:#007788;">

<div class="container" style="border-top:3px solid #ccc;border-bottom:3px solid #ccc;border-right:5px solid #ccc;<c:if test="${lose=='1'}">border-right:5px solid #F22715;</c:if>background:#FFFFFF;margin-top:150px;color:#007788;opacity: 0.8;">

<div class="row featurette">

<div class="col-md-6">

<p style="color:#085D1F;font-weight:bold;font-size:48px;line-height:250px;text-align:center;">      全时运营中心</p>

</div>

<div class="col-md-6">

<form class="form-signin" id="f" name="f" action="<c:url value="/loginProcess" />" method="post">

<br>

<br>

<label for="inputEmail" class="sr-only">email</label>

<input type="text" id="inputEmail" name="j_username" class="form-control" placeholder="请输入邮箱" required autofocus>

<br>

<label for="inputPassword" class="sr-only">password</label>

<input type="password" id="inputPassword" name="j_password" class="form-control" placeholder="请输入密码" required>

<input name="_spring_security_remember_me" id="remember_me" type="checkbox"/>

<label for="remember_me">remember</label>

<input class="btn btn-lg btn-success btn-block" value="登录" type="submit"></input>

</form>

<c:if test="${not empty param.login_error}">

<p class="text-center" style="color:red;">

登录失败:<%= ((AuthenticationException) session.getAttribute(UsernamePasswordAuthenticationFilter.SPRING_SECURITY_LAST_EXCEPTION_KEY)).getMessage() %>

</p>

</c:if>

</div>

</div>

<br>

<br>

</div>

<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->

<script src="<%=basePath%>/resources/dist/js/ie10-viewport-bug-workaround.js"></script>

</body>

</html>