Spring Security 的入门

1.导入jar包坐标

<dependencies>
     <dependency> 
        <groupId>org.springframework.security</groupId>             
        <artifactId>spring-security-web</artifactId> 
        <version>5.0.1.RELEASE</version>
    </dependency> 
    <dependency> 
       <groupId>org.springframework.security</groupId>     
       <artifactId>spring-security-config</artifactId> 
       <version>5.0.1.RELEASE</version> 
    </dependency> 
</dependencies>            

2.web.xml

<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>

3spring—security.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:security="http://www.springframework.org/schema/security"
       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">


    <!-- 配置不过滤的资源（静态资源及登录相关） -->
    <security:http security="none" pattern="/login.html" />
    <security:http security="none" pattern="/failer.html" />
    <security:http auto-config="true" use-expressions="false" >
        <!-- 配置资料连接，表示任意路径都需要ROLE_USER权限 -->
        <security:intercept-url pattern="/**" access="ROLE_USER" />
        <!-- 自定义登陆页面，login-page 自定义登陆页面 authentication-failure-url 用户权限校验失败之后才会跳转到这个页面，如果数据库中没有这个用户则不会跳转到这个页面。
            default-target-url 登陆成功后跳转的页面。 注：登陆页面用户名固定 username，密码 password，action:login -->
        <security:form-login login-page="/login.html"
                             login-processing-url="/login" username-parameter="username"
                             password-parameter="password" authentication-failure-url="/failer.html"
                             default-target-url="/success.html" authentication-success-forward-url="/success.html"
        />
        <!--&lt;!&ndash; 登出， invalidate-session 是否删除session logout-url：登出处理链接 logout-success-url：登出成功页面
            注：登出操作 只需要链接到 logout即可登出当前用户 &ndash;&gt;
        <security:logout invalidate-session="true" logout-url="/logout"
                         logout-success-url="/login.jsp" />-->
        <!-- 关闭CSRF,默认是开启的 -->
        <security:csrf disabled="true" />
    </security:http>
    <security:authentication-manager>
        <security:authentication-provider>
            <security:user-service>
                <security:user name="user" password="{noop}user"
                               authorities="ROLE_USER" />
                <security:user name="admin" password="{noop}admin"
                               authorities="ROLE_ADMIN" />
            </security:user-service>
        </security:authentication-provider>
    </security:authentication-manager>
</beans>