使用SpringSecurity处理CSRF攻击的方法步骤

<!-- 模板引擎 freemarker -->
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<!-- Security (只使用CSRF部分) -->
<dependency>
 <groupId>org.springframework.security</groupId>
 <artifactId>spring-security-web</artifactId>
</dependency>

@SpringBootApplication
public class Application {

 public static void main(String[] args) {
  SpringApplication.run(Application.class, args);
 }
 
 /**
  * 配置CSRF过滤器
  *
  * @return {@link org.springframework.boot.web.servlet.FilterRegistrationBean}
  */
 @Bean
 public FilterRegistrationBean<CsrfFilter> csrfFilter() {
  FilterRegistrationBean<CsrfFilter> registration = new FilterRegistrationBean<>();
  registration.setFilter(new CsrfFilter(new HttpSessionCsrfTokenRepository()));
  registration.addUrlPatterns("/*");
  registration.setName("csrfFilter");
  return registration;
 }
}

<input name="${(_csrf.parameterName)!}" value="${(_csrf.token)!}" type="hidden" />

xhr.setRequestHeader("${_csrf.headerName}", "${_csrf.token}");

jQuery.ajaxSetup({
 "beforeSend": function (request) {
  request.setRequestHeader("${_csrf.headerName}", "${_csrf.token}");
 }
});