Java 同类型的对象无法强转？？？？

This topic created in 2316 days ago, the information mentioned may be changed or developed.

在 SpringBoot 整合 Shiro 时报错

java.lang.ClassCastException: com.chunkit.show_web.entity.User cannot be cast to com.chunkit.show_web.entity.User

报异常的句子 user = (User)((SimplePrincipalCollection) attribute).getPrimaryPrincipal();

attribute::

attribute = {SimplePrincipalCollection@8525} "User(userid=3, username=admin, password=4af009edcc2fc527d84e93f6b7f04b8c1c22607258776512a1f2ab7b86eef309, accountname=admin)" realmPrincipals = {LinkedHashMap@8565} size = 1 "com.chunkit.show_web.auth.shiro.CustomRealm_0" -> {LinkedHashSet@8574} size = 1 cachedToString = "User(userid=3, username=admin, password=4af009edcc2fc527d84e93f6b7f04b8c1c22607258776512a1f2ab7b86eef309, accountname=admin)"

求解

2 replies • 2020-01-17 10:16:56 +08:00

1

MetalCore

Jan 16, 2020

你大概是开启了 springboot devtools，导致类的类加载器不一样，你搜下就知道相关问题了

2

xiaoxinshiwo

Jan 17, 2020

一楼正解