https://docs.spring.io/spring-batch/4.1.x/reference/html/ ---简介及使用场景
https://blog.csdn.net/topdeveloperr/article/details/84337956--基础知识介绍
https://docs.spring.io/spring-batch/docs/4.1.x/reference/html/---参考文档
https://docs.spring.io/spring-batch/4.1.x/reference/html/ ---简介及使用场景
https://blog.csdn.net/topdeveloperr/article/details/84337956--基础知识介绍
https://docs.spring.io/spring-batch/docs/4.1.x/reference/html/---参考文档