SQLInput用于查询过程中把数据库中UDT类型映射成用户自定义的java类型。

对象方法：

返回类型	方法
String	readString() throws SQLException
String	readNString() throws SQLException
boolean	readBoolean() throws SQLException
byte	readByte() throws SQLException
short	readShort() throws SQLException
int	readInt() throws SQLException
long	readLong() throws SQLException
float	readFloat() throws SQLException
double	readDouble() throws SQLException
BigDecimal	readBigDecimal() throws SQLException
byte[]	readBytes() throws SQLException
Date	readDate() throws SQLException
Time	readTime() throws SQLException
Timestamp	readTimestamp() throws SQLException
Blob	readBlob() throws SQLException
Clob	readClob() throws SQLException
NClob	readNClob() throws SQLException
SQLXML	readSQLXML() throws SQLException
Reader	readCharacterStream() throws SQLException
InputStream	readAsciiStream() throws SQLException
InputStream	readBinaryStream() throws SQLException
Object	readObject() throws SQLException
<T> T	readObject(Class<T> type) throws SQLException
Array	readArray() throws SQLException
RowId	readRowId() throws SQLException
boolean	wasNull()

未支持方法：

返回类型	方法
Ref	readRef() throws SQLException
URL	readURL() throws SQLException