JSR303 javax.el.ExpressionFactory.newInstance () ljavax/el/expressionfactory on SPRINGMVC data validation;

Today, when I was learning springmvc-jsr303, when I encountered the use of @range, @size annotations (involving a limited number range), reported an exception

First Solution: I'm using MyEclipse's own tomcat to cause this problem, just switch to an external server .

Second Rescue solution: find lib under the external Tomcat directory, force delete El-api.jar, and copy to Lib with Javax-el-x.y.z.jar, El-api-x.y.jar, Javax-el-api-x.y.z.jar Recorded, it can be solved.

TMD, this problem bothers me all day.

JSR303 javax.el.ExpressionFactory.newInstance () ljavax/el/expressionfactory on SPRINGMVC data validation;