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springioc(控制反转),di(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。
入门小demo:
pom.xml:
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>4.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- java编译插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 指定端口 -->
<port>8083</port>
<!-- 请求路径 -->
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
</project>
web.xml:
<?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">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-security.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<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>
创建spring-security.xml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">
<!-- 页面拦截规则 -->
<http use-expressions="false">
<intercept-url pattern="/**" access="ROLE_USER" />
<form-login/>
</http>
<!-- 认证管理器 -->
<authentication-manager>
<authentication-provider>
<user-service>
<user name="admin" password="123456" authorities="ROLE_USER"/>
</user-service>
</authentication-provider>
</authentication-manager>
</beans:beans>
在web.xml中配置了filter拦截器,安全框架拦截所有请求,拦截器需要有配置文件,配置文件是需要监听器来加载的,
在spring-security.xml配置文件里面就是拦截的配置。
配置不被拦截的页面:
<http pattern="/login.html" security="none"></http>
需要控制安全的放在<http>标签中:
<http use-expressions="false">
<intercept-url pattern="/**" access="ROLE_USER" /> :pattern="/**" 拦截所有,表示有ROLE_USER权限可以访问
<form-login default-target-url="/index.html" always-use-default-target="true"
login-page="/login.html" login-processing-url="/login"/> : login-page表示自己的登录页, login-processing-url登录页处理的请求,在自己书写的登录页面中form表单的action路径必须也要是/login。登录成功跳转到/index.html页面,可以配置登录失败返回登录页面重新
<!-- csrf disabled="true" 关闭csrf(跨域请求攻击,被攻击了是因为cookie被挟持了),如果不加会出现错误 cookie (走网线)+手机短信 (4G) -->
<csrf disabled="true"/>
</http>
认证器的任务就是判断用户名,密码好角色是否正确,如果正确认证成功。实际这些信息时存放在表里,这里只是做一个小demo,先暂时写死。
实际应用:(我们给系统中添加)
1.首先将上方的web.xml中的内容,放到项目中的web.xml中。
2.将spring-security.xml配置文件放到项目中(注意加载路径正确)。
3.修改spring-security.xml配置文件内容:
01.项目中spring-security.xml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"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
<http pattern="/*.html" security="none"/>
<http pattern="/css/**" security="none"/>
<http pattern="/img/**" security="none"/>
<http pattern="/js/**" security="none"/>
<http pattern="/plugins/**" security="none"/>
<http pattern="/seller/add.do" security="none"/>
<!-- use-expressions:设置是否启动SpEL表达式,默认值是true。 -->
<http use-expressions="false">
<!--
配置SpringSecurity的拦截路径(拦截规则)
* pattern:配置拦截规则。 /* 代表的是根路径下的所有资源(不包含子路径) /**代表的是根路径下所有的资源(包含子路径)
* access:设置角色 角色命名 ROLE_角色名称 如: ROLE_USER
-->
<intercept-url pattern="/**" access="ROLE_SELLER"/>
<!--
开启表单验证
username-parameter="username"
password-parameter="password"
login-page :登录页面名称 以 / 开始
default-target-url :登录成功后跳转的页面
login-processing-url:提交的路径的设置 默认值"/login" 可以修改
-->
<form-login login-page="/shoplogin.html" default-target-url="/admin/index.html" always-use-default-target="true" authentication-failure-url="/shoplogin.html"/>
<!-- 不使用csrf的校验 -->
<csrf disabled="true"/>
<!-- 配置框架页面不拦截 -->
<headers>
<frame-options policy="SAMEORIGIN"/>
</headers>
<!-- 注销的配置 -->
<logout logout-url="/logout" logout-success-url="/shoplogin.html" />
</http>
<!-- 配置认证管理器 -->
<authentication-manager>
<!-- 认证的提供者 -->
<authentication-provider user-service-ref="userDetailService">
<password-encoder ref="passwordEncoder"></password-encoder>
</authentication-provider>
</authentication-manager>
<!-- 引用dubbo 服务消息 方 -->
<dubbo:application name="pinyougou-web-shop" />
<dubbo:registry address="zookeeper://192.168.200.128:2181"/>
<dubbo:reference id="sellerService" interface="cn.it.core.service.SellerService" />
<!-- 配置自定义的认证类 -->
<beans:bean id="userDetailService" class="cn.it.core.service.UserDetailServiceImpl">
<beans:property name="sellerService" ref="sellerService"/>
</beans:bean>
<beans:bean id="passwordEncoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"/>
</beans:beans>
在SellerService中写接口:
public Seller findSellerBySellerIdAndStatus(String sellerId, String status);
UserDetailServiceImpl类:
public class UserDetailServiceImpl implements UserDetailsService {
// 根据用户名查询tb_seller 表
private SellerService sellerService;
public void setSellerService(SellerService sellerService) {
this.sellerService = sellerService;
}
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
// TODO Auto-generated method stub
// 认证
Seller seller = sellerService.findSellerBySellerIdAndStatus(username, "1");
if (null != seller) {
Set<GrantedAuthority> authorities = new HashSet<>();
authorities.add(new SimpleGrantedAuthority("ROLE_SELLER"));
return new User(seller.getSellerId(), seller.getPassword(), authorities);
} else {
return null;
}
}
}