生成验证码图片并对提交的输入进行验证 // HttpServletResponse常见应用——生成验证码 // 利用BufferedImage类生产随机图片 public static final int WIDTH = 120;// 生成的图片的宽度 public static final int HEIGHT = 30;// 生成的图片的高度 public void doGet(HttpServletRequest request, HttpServletResponse response)…
java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) at org.springframework.test.context.suppo…
http://docs.spring.io/spring-security/site/docs/3.2.0.CI-SNAPSHOT/reference/html/csrf.html 13. Cross Site Request Forgery (CSRF) This section discusses Spring Security's Cross Site Request Forgery (CSRF) support. 13.1 CSRF Attacks Before we discuss h…
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,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. 权限控制是非常常见的功能,在各种后台管理里权限控制更是重中之重.在Spring Boot中使用 Spring Security 构建权限系统是非常轻松和简单的.下面我们就来快速入门 Spring Security .在开始前我们需要一对…
重写了UsernamePasswordAuthenticationFilter,里面继承AbstractAuthenticationProcessingFilter,这个类里面的session认证策略,是一个空方法,貌似RememberMe也是. public abstract class AbstractAuthenticationProcessingFilter extends GenericFilterBean implements ApplicationEventPublisherAwa…
From Zero to OAuth2 in Spring cloud Today I am presenting hours of research about a (apparently) simple question: “How can I maintain security in my microservices architecture?”. The task is to enable a simple but mighty possibility to secure spring…
18.5.3 Logging Out Adding CSRF will update the LogoutFilter to only use HTTP POST. This ensures that log out requires a CSRF token and that a malicious user cannot forcibly log out your users. One approach is to use a form for log out. If you really…
Java JWT: JSON Web Token for Java and Android JJWT aims to be the easiest to use and understand library for creating and verifying JSON Web Tokens (JWTs) on the JVM. JJWT is a Java implementation based on the JWT, JWS, JWE, JWK and JWA RFC specificat…