The "sale" bean is a flow instance variable allocated when an execution of this flow starts.
sale “ bean是流转开始时分配的流转变量实例。”
3
The flowExecutor Spring bean is configured to use a flowRegistry bean to execute XML-based flow definitions located in the "/WEB-INF/flows/" directory.
Spring flowExecutor bean配置使用一个flowRegistry bean来执行"/WEB-INF/flows/"目录中的基于XML的流转定义。