前言

为了实现公司飞书机器人功能robot,对飞书调用内容进行aes 256解密,本地运行没问题,一部署出现上述问题:com.larksuite.oapi.core.exception.DecryptException: java.security.InvalidKeyException: Illegal key size

报错内容

com.larksuite.oapi.core.exception.DecryptException: java.security.InvalidKeyException: Illegal key size

at com.larksuite.oapi.core.Decrypt.decrypt(Decrypt.java:49)
at cn.zzq0324.alarm.bot.web.controller.LarkCallbackController.unmarshal(LarkCallbackController.java:70)
at cn.zzq0324.alarm.bot.web.controller.AbstractCallback.callback(AbstractCallback.java:41)
at cn.zzq0324.alarm.bot.web.controller.AbstractCallback$$FastClassBySpringCGLIB$$58890b60.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:687)
at cn.zzq0324.alarm.bot.web.controller.LarkCallbackController$$EnhancerBySpringCGLIB$$decacd23.callback(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)

解决方法:转载