今日份bug: JSTL标签 漏写

看出来是什么错了没？

Caused by: org.apache.jasper.JasperException: An exception occurred processing JSP page /pages/manager/book_manager.jsp at line 89

标签：book,JSTL,manager,89,jasper,漏写,bug
来源： https://www.cnblogs.com/hellokuangsan/p/15717905.html