摘要：
Spring Security是一个安全框架，它可以为基于Spring的企业应用程序提供声明性安全访问控制解决方案--要发布的资源--˃4。配置tomcat˂？
Spring Security 是一个能够为基于 Spring 的企业应用系统提供声明式的安全
访问控制解决方案的安全框架。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，减少了为企业系统安全控制编写大量重复代码的工作。 
1. 创建工程
2. 添加依赖
<dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.0.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>5.0.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>5.0.0.RELEASE</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <configuration> <path>/</path> <port>8080</port> </configuration> </plugin> </plugins> </build>
3. 编写配置文件
<?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.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd"> <!--需要放行的资源--> <http pattern="/login.html" security="none"/> <http pattern="/login_error.html" security="none"/> <!--角色访问权限--> <http use-expressions="false"> <!--角色可以访问的资源--> <intercept-url pattern="/**" access="ROLE_USER"/> <!--设置登录表单--> <form-login login-page="/login.html" default-target-url="/index.html" authentication-failure-forward-url="/login_error.html"/> <!--退出--> <logout/> <!--禁止跨站请求伪造校验--> <csrf disabled="true"/> </http> <!--加密方式 明文--> <beans:bean id="passwordEncoder" class="org.springframework.security.crypto.password.NoOpPasswordEncoder"/> <!--认证管理器--> <authentication-manager> <authentication-provider> <!--设置密码加密方式--> <password-encoder ref="passwordEncoder"/> <!--拥有角色的用户名和密码--> <user-service> <user name="orange" password="123456" authorities="ROLE_USER"/> </user-service> </authentication-provider> </authentication-manager> </beans:beans>
4. 配置tomcat
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <!--springSecurity监听器--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/spring-security.xml</param-value> </context-param> <!--springSecurity过滤器--> <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> </web-app>
5. 测试
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>登录页面</title> </head> <body> <form action="/login" method="post"> 用户名：<input type="text" name="username"><br> 密码：<input type="password" name="password"><br> <input type="submit" name="submit" value="登录"> </form> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>spring security</title> </head> <body> 欢迎使用 Spring Security <a href="/logout">退出</a> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>登录失败</title> </head> <body> 密码或用户名错误 </body> </html>