在 POJO 我有:
public void setBlob(InputStream in, Long l) {
this.blob = Hibernate.getLobCreator(SessionFactoryHelper.sessionFactory.getCurrentSession()).createBlob(in, l);
}
Run Code Online (Sandbox Code Playgroud)
我在配置中将 hibernate.jdbc.use_streams_for_binary 设为 true,但它真的改变了什么吗?
保存实体时,在 session.flush() 上我得到:
org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release
INFO: HHH000010: On release of batch it still contained JDBC statements
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
Heap dump file created [46180174 bytes in 1.662 secs]
at java.util.Arrays.copyOf(Arrays.java:2271)
at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:113)
at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:140)
at org.hibernate.type.descriptor.java.DataHelper.extractBytes(DataHelper.java:171)
at org.hibernate.type.descriptor.java.BlobTypeDescriptor.unwrap(BlobTypeDescriptor.java:121)
at org.hibernate.type.descriptor.java.BlobTypeDescriptor.unwrap(BlobTypeDescriptor.java:45)
at org.hibernate.type.descriptor.sql.BlobTypeDescriptor$4$1.doBind(BlobTypeDescriptor.java:105)
at org.hibernate.type.descriptor.sql.BasicBinder.bind(BasicBinder.java:92)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:305)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:300)
at org.hibernate.type.AbstractSingleColumnStandardBasicType.nullSafeSet(AbstractSingleColumnStandardBasicType.java:57)
at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:2599)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2853) …Run Code Online (Sandbox Code Playgroud)