Hibernate的组件问题

组件有问题啊，用注解的，百度说Address没有主键，不知道怎么弄

2017-1-12 13:20:50 org.hibernate.annotations.common.Version <clinit>

INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}

2017-1-12 13:20:50 org.hibernate.Version logVersion

INFO: HHH000412: Hibernate Core {4.1.4.Final}

2017-1-12 13:20:50 org.hibernate.cfg.Environment <clinit>

INFO: HHH000206: hibernate.properties not found

2017-1-12 13:20:50 org.hibernate.cfg.Environment buildBytecodeProvider

INFO: HHH000021: Bytecode provider name : javassist

2017-1-12 13:20:50 org.hibernate.cfg.Configuration configure

INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml

2017-1-12 13:20:50 org.hibernate.cfg.Configuration getConfigurationInputStream

INFO: HHH000040: Configuration resource: /hibernate.cfg.xml

2017-1-12 13:20:50 org.hibernate.cfg.Configuration doConfigure

INFO: HHH000041: Configured SessionFactory: null