tomcat之The identifier [class] is not a valid Java identifier as required by section 1.19 of the EL specification (Identifier ::= Java language identifier). This check can be disabled by setting the sy

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he identifier [class] is not a valid Java identifier as required by section 1.19

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The identifier [class] is not a valid Java identifier as required by section 
1.19 of the EL specification (Identifier ::= Java language identifier). This 
check can be disabled by setting the system property 
org.apache.el.parser.SKIP_IDENTIFIER_CHECK to true.

解决方案： tomcat/conf/catalina.properties文件最后加上
org.apache.el.parser.SKIP_IDENTIFIER_CHECK=true