通过

getBinaryStream Method (java.lang.String)

  • 项目

Retrieves the value of the designated column name in the current row of this SQLServerResultSet object as a binary stream of uninterpreted bytes.

public java.io.InputStream getBinaryStream(java.lang.String columnName)

参数

columnName

A String that contains the column name.

返回值

An InputStream object.

异常

SQLServerException

备注

This getBinaryStream method is specified by the getBinaryStream method in the java.sql.ResultSet interface.

This method can be used only with SQL Server data types of binary, varbinary, varbinary(max), and image. Trying to use it with other data types will cause an exception to be thrown.

After this method gets the value as a stream, the value can then be read in chunks from the stream. This method is particularly suitable for retrieving large LONGVARBINARY values.

备注

All the data in the returned stream must be read before getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream can return 0 when the method InputStream.available is called, whether there is data available or not.

另请参见

参考

SQLServerResultSet Class

概念

getBinaryStream Method (SQLServerResultSet)
SQLServerResultSet Methods
SQLServerResultSet Members