（轉）mybatis常用jdbcType數據類型

1 MyBatis 通過包含的jdbcType類型

BIT         FLOAT      CHAR           TIMESTAMP       OTHER       UNDEFINED

TINYINT     REAL       VARCHAR        BINARY          BLOB        NVARCHAR

SMALLINT    DOUBLE     LONGVARCHAR    VARBINARY       CLOB        NCHAR

INTEGER     NUMERIC    DATE           LONGVARBINARY   BOOLEAN     NCLOB

BIGINT      DECIMAL    TIME           NULL            CURSOR

2 Mybatis中javaType和jdbcType對應和CRUD例子

<resultMap type="java.util.Map" id="resultjcm">
  <result property="FLD_NUMBER" column="FLD_NUMBER"  javaType="double" jdbcType="NUMERIC"/>
  <result property="FLD_VARCHAR" column="FLD_VARCHAR" javaType="string" jdbcType="VARCHAR"/>
  <result property="FLD_DATE" column="FLD_DATE" javaType="java.sql.Date" jdbcType="DATE"/>
  <result property="FLD_INTEGER" column="FLD_INTEGER"  javaType="int" jdbcType="INTEGER"/>
  <result property="FLD_DOUBLE" column="FLD_DOUBLE"  javaType="double" jdbcType="DOUBLE"/>
  <result property="FLD_LONG" column="FLD_LONG"  javaType="long" jdbcType="INTEGER"/>
  <result property="FLD_CHAR" column="FLD_CHAR"  javaType="string" jdbcType="CHAR"/>
  <result property="FLD_BLOB" column="FLD_BLOB"  javaType="[B" jdbcType="BLOB" />
  <result property="FLD_CLOB" column="FLD_CLOB"  javaType="string" jdbcType="CLOB"/>
  <result property="FLD_FLOAT" column="FLD_FLOAT"  javaType="float" jdbcType="FLOAT"/>
  <result property="FLD_TIMESTAMP" column="FLD_TIMESTAMP"  javaType="java.sql.Timestamp" jdbcType="TIMESTAMP"/>
 </resultMap>

3 Mybatis中javaType和jdbcType對應關系

JDBC Type            Java Type
CHAR                String
VARCHAR                String
LONGVARCHAR            String
NUMERIC                java.math.BigDecimal
DECIMAL                java.math.BigDecimal
BIT                boolean
BOOLEAN                boolean
TINYINT                byte
SMALLINT            short
INTEGER                int
BIGINT                long
REAL                float
FLOAT                double
DOUBLE                double
BINARY                byte[]
VARBINARY            byte[]
LONGVARBINARY                byte[]
DATE                java.sql.Date
TIME                java.sql.Time
TIMESTAMP            java.sql.Timestamp
CLOB                Clob
BLOB                Blob
ARRAY                Array
DISTINCT            mapping of underlying type
STRUCT                Struct
REF                            Ref
DATALINK            java.net.URL[color=red][/color]

 4  oracle數據類型和對應的java類型

用mybatis generator生成代碼后，執行查詢語句時，oracle里的Date類型字段只精確到年月日，后面時分秒都為零。

 jdbcType="DATE"時候，存入到數據庫中的字段只有年月日！

后來發現是jdbcType問題，改成 jdbcType="TIMESTAMP" 就可以。（原先默認生成時是jdbcType="DATE"）

地址：

http://otndnld.oracle.co.jp/document/products/oracle10g/102/doc_cd/java.102/B19275-03/datacc.htm#BHCJBJCC

 

SQL數據類型	JDBC類型代碼	標准的Java類型	Oracle擴展的Java類型
	1.0標准的JDBC類型:
CHAR	java.sql.Types.CHAR	java.lang.String	oracle.sql.CHAR
VARCHAR2	java.sql.Types.VARCHAR	java.lang.String	oracle.sql.CHAR
LONG	java.sql.Types.LONGVARCHAR	java.lang.String	oracle.sql.CHAR
NUMBER	java.sql.Types.NUMERIC	java.math.BigDecimal	oracle.sql.NUMBER
NUMBER	java.sql.Types.DECIMAL	java.math.BigDecimal	oracle.sql.NUMBER
NUMBER	java.sql.Types.BIT	boolean	oracle.sql.NUMBER
NUMBER	java.sql.Types.TINYINT	byte	oracle.sql.NUMBER
NUMBER	java.sql.Types.SMALLINT	short	oracle.sql.NUMBER
NUMBER	java.sql.Types.INTEGER	int	oracle.sql.NUMBER
NUMBER	java.sql.Types.BIGINT	long	oracle.sql.NUMBER
NUMBER	java.sql.Types.REAL	float	oracle.sql.NUMBER
NUMBER	java.sql.Types.FLOAT	double	oracle.sql.NUMBER
NUMBER	java.sql.Types.DOUBLE	double	oracle.sql.NUMBER
RAW	java.sql.Types.BINARY	byte[]	oracle.sql.RAW
RAW	java.sql.Types.VARBINARY	byte[]	oracle.sql.RAW
LONGRAW	java.sql.Types.LONGVARBINARY	byte[]	oracle.sql.RAW
DATE	java.sql.Types.DATE	java.sql.Date	oracle.sql.DATE
DATE	java.sql.Types.TIME	java.sql.Time	oracle.sql.DATE
TIMESTAMP	java.sql.Types.TIMESTAMP	javal.sql.Timestamp	oracle.sql.TIMESTAMP
	2.0標准的JDBC類型:
BLOB	java.sql.Types.BLOB	java.sql.Blob	oracle.sql.BLOB
CLOB	java.sql.Types.CLOB	java.sql.Clob	oracle.sql.CLOB
用戶定義的對象	java.sql.Types.STRUCT	java.sql.Struct	oracle.sql.STRUCT
用戶定義的參考	java.sql.Types.REF	java.sql.Ref	oracle.sql.REF
用戶定義的集合	java.sql.Types.ARRAY	java.sql.Array	oracle.sql.ARRAY
	Oracle擴展:
BFILE	oracle.jdbc.OracleTypes.BFILE	N/A	oracle.sql.BFILE
ROWID	oracle.jdbc.OracleTypes.ROWID	N/A	oracle.sql.ROWID
REF CURSOR	oracle.jdbc.OracleTypes.CURSOR	java.sql.ResultSet	oracle.jdbc.OracleResultSet
TIMESTAMP	oracle.jdbc.OracleTypes.TIMESTAMP	java.sql.Timestamp	oracle.sql.TIMESTAMP
TIMESTAMP WITH TIME ZONE	oracle.jdbc.OracleTypes.TIMESTAMPTZ	java.sql.Timestamp	oracle.sql.TIMESTAMPTZ
TIMESTAMP WITH LOCAL TIME ZONE	oracle.jdbc.OracleTypes.TIMESTAMPLTZ	java.sql.Timestamp	oracle.sql.TIMESTAMPLTZ

 

 

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