hibernate操作大文本字段blob和clob幫助

1、Hibernate 操作Clob Blob 字package;package;import private Integer id; privateBlob this.imgClob=imgClob; this.imgBlob = imgBlob;return this.id=return this.imgClob=return this.imgBlob=?xml?xmlversion=1.0encoding=UTF-!DOCTYPEhibernate-/Hibernate/Hibernate MapDTD3.0/EN class.ElecBigObjectidname=idcolumngene

2、ratorclass=nativepropertyname=imgClobcolumnname=imgClobpropertyname=imgBlobcolumnname=imgBlob ?xml?xmlversion=1.0encoding=UTF-!DOCTYPEhibernate-configuration-/Hibernate/HibernateConfigurationDTD3.0/EN 連接數(shù)據(jù)庫propertypropertyproperty propertyproperty1:開啟二級(jí)緩2:要指定緩存的供應(yīng)商!- propertymap resource=cn/ package

3、import java.io.FileInputStream; import java.io.InputStream; import java.io.OutputStream;importpackageimport java.io.FileInputStream; import java.io.InputStream; import java.io.OutputStream;importimport *author* SessionFactorysf=null; Session session = null; Transaction tx = null;publicvoidsaveClobAn

4、dBlob()Configuration configuration = new Configuration(); session = sf.openSession();try / /InputStreaminput=/ 加載任意路徑下的InputStreaminput=newFileInputStream(F:dira.txt); byte byteArray = new byteinput.available(); ElecBigObjectb=new/ /依據(jù)字符串?dāng)?shù)據(jù)創(chuàng)建一個(gè)Clob對(duì)象！存放字符串 catch(ExceptionpublicvoidfindClobAndBlob()C

5、onfigurationconfiguration=new 文sf=configuration.buildSessionFactory(); session = sf.openSession();tx= Clobtryif(obj.getImgClob()!=null)Readerread=obj.getImgClob().getCharacterStream(); char chArray = new char1;StringBuildersb=newStringBuilder(); while (read.read(chArray) != -1) catch(Exceptiontryif(obj.getImgBlob()!=null)InputStream in = obj.getImgBlob().getBinaryStream(); OutputStreamos=