exceptionMsg is :com.example.workflow.entity.User cannot be cast to com.example.workflow.entity.User

User user = (User) subject.getSession().getAttribute("user");做类型转换时报错:exception
User user = (User) subject.getSession().getAttribute("user");
做类型转换时报错:exceptionMsg is :com.example.workflow.entity.User cannot be cast to com.example.workflow.entity.User

网上找了一圈,最终发现:项目中应该是采用了热部署,devtools,因为类加载器的不同所以会导致类型转换失败

注释热部署就可以了