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  • mysql数据类型和Java数据类型对比一览

    MySQL Types to Java Types for ResultSet.getObject()

    MySQL Type Name Return value ofGetColumnClassName Returned as Java Class
    BIT(1) (new in MySQL-5.0) BIT java.lang.Boolean
    BIT( > 1) (new in MySQL-5.0) BIT byte[]
    TINYINT TINYINT java.lang.Boolean if the configuration property tinyInt1isBit is set to true (the default) and the storage size is 1, or java.lang.Integer if not.
    BOOLBOOLEAN TINYINT See TINYINT, above as these are aliases for TINYINT(1), currently.
    SMALLINT[(M)] [UNSIGNED] SMALLINT [UNSIGNED] java.lang.Integer (regardless if UNSIGNED or not)
    MEDIUMINT[(M)] [UNSIGNED] MEDIUMINT [UNSIGNED] java.lang.Integer, if UNSIGNED java.lang.Long (C/J 3.1 and earlier), or java.lang.Integer for C/J 5.0 and later
    INT,INTEGER[(M)] [UNSIGNED] INTEGER [UNSIGNED] java.lang.Integer, if UNSIGNED java.lang.Long
    BIGINT[(M)] [UNSIGNED] BIGINT [UNSIGNED] java.lang.Long, if UNSIGNED java.math.BigInteger
    FLOAT[(M,D)] FLOAT java.lang.Float
    DOUBLE[(M,B)] DOUBLE java.lang.Double
    DECIMAL[(M[,D])] DECIMAL java.math.BigDecimal
    DATE DATE java.sql.Date
    DATETIME DATETIME java.sql.Timestamp
    TIMESTAMP[(M)] TIMESTAMP java.sql.Timestamp
    TIME TIME java.sql.Time
    YEAR[(2|4)] YEAR If yearIsDateType configuration property is set to false, then the returned object type is java.sql.Short. If set to true (the default), then the returned object is of typejava.sql.Date with the date set to January 1st, at midnight.
    CHAR(M) CHAR java.lang.String (unless the character set for the column is BINARY, then byte[] is returned.
    VARCHAR(M) [BINARY] VARCHAR java.lang.String (unless the character set for the column is BINARY, then byte[] is returned.
    BINARY(M) BINARY byte[]
    VARBINARY(M) VARBINARY byte[]
    TINYBLOB TINYBLOB byte[]
    TINYTEXT VARCHAR java.lang.String
    BLOB BLOB byte[]
    TEXT VARCHAR java.lang.String
    MEDIUMBLOB MEDIUMBLOB byte[]
    MEDIUMTEXT VARCHAR java.lang.String
    LONGBLOB LONGBLOB byte[]
    LONGTEXT VARCHAR java.lang.String
    ENUM('value1','value2',...) CHAR java.lang.String
    SET('value1','value2',...) CHAR java.lang.String
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  • 原文地址:https://www.cnblogs.com/liguangsunls/p/7219052.html
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