spring security exit logout and login404 error

  在学习完spring security后，做了一个小项目，登陆的时候没有任何问题，在做退出操作时总是出现404无法访问的错误。
 在经过2天的不懈努力下，总算解决了，总结下我所知道的几点！

1, whether to close the csrf cross-domain request, open during the default

 <!-- 2.4关闭CSRF(跨域请求),默认是开启的 -->
        <security:csrf disabled="true"/>

2, static files path problem, it is best to static pages into webapp

3, tomcat set the access path to / logout I solved the problem, which is to put the project under the root path

4, all with all the best path absolute path, for example: http: // localhost: 8080 / manageraa / show