java操作oracle的blob,clob数据

2、 put

BLOB

1. //获得数据库连接   
       Connection con = ConnectionFactory.getConnection();   
       con.setAutoCommit(false);   
       Statement st = con.createStatement();   
       //插入一个空对象empty_blob()   
       st.executeUpdate("insert into TESTBLOB (ID, NAME, BLOBATTR) values (1, "thename", empty_blob())");   
       //锁定数据行进行更新，注意“for update”语句   
       ResultSet rs = st.executeQuery("select BLOBATTR from TESTBLOB where ID=1 for update");   
       if (rs.next())   
       {   
           //得到java.sql.Blob对象后强制转换为oracle.sql.BLOB   
           oracle.sql.BLOB blob = (oracle.sql.BLOB) rs.getBlob("BLOBATTR");   
           OutputStream outStream = blob.getBinaryOutputStream();   
           //data是传入的byte数组，定义：byte[] data   
           outStream.write(data, 0, data.length);   
       }   
       outStream.flush();   
       outStream.close();   
       con.commit();   
       con.close();   

    

java操作oracle的blob,clob数据

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