运行项目时出现java.lang.NoClassDefFoundError: org/apache/commons/lang/exception/NestableRuntimeException时，只需导入commons-lang-2.6.jar的jar包即可
java.lang.NoClassDefFoundError: org/apache/commons/lang/exception/NestableRuntimeException
原文：https://blog.51cto.com/u_14201949/2983325