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                        /Hibernate初探之一對多映射

查詢時報錯

班級可以查出來，執行Set<Student> s= g.getStudents();查不出內容，控制臺提示

Hibernate:?

? ? select

? ? ? ? students0_.GID as GID4_0_1_,

? ? ? ? students0_.SID as SID1_1_1_,

? ? ? ? students0_.SID as SID1_1_0_,

? ? ? ? students0_.SNAME as SNAME2_1_0_,

? ? ? ? students0_.SEX as SEX3_1_0_?

? ? from

? ? ? ? STUDENT students0_?

? ? where

? ? ? ? students0_.GID=?

十月 23, 2016 12:21:15 上午 org.hibernate.engine.loading.internal.LoadContexts cleanup

WARN: HHH000100: Fail-safe cleanup (collections) : org.hibernate.engine.loading.internal.CollectionLoadContext@42e3c02a<rs=com.mysql.jdbc.JDBC4ResultSet@70ef6368>

十月 23, 2016 12:21:15 上午 org.hibernate.engine.loading.internal.CollectionLoadContext cleanup

WARN: HHH000160: On CollectionLoadContext#cleanup, localLoadingCollectionKeys contained [1] entries