报错如下: Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/lang3/Validate] with root cause java.lang.NoClassDefFoundError: org/apache/commons/lang3/Validate at com.netflix.hystrix.contrib.javanica.aop.aspectj.HystrixCommandAspect.methodsAnnotatedWithHystrixCommand(HystrixCommandAspect.java:78) ~[hystrix-javanica-1.5.3.jar:1.5.3] 找到maven目录看,有下面这个jar,解压看,有Validate类, commons-lang3/3.3.1.jar 奇怪了,又用反编译看看 jd-gui-1.4.0.jar 看到反编译不出来。于是重新下载过,之后可以了。 怀疑是maven下载过程中出错吧。
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