<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>  

mybatis常用jdbcType数据类型与mysql的类型对照
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]