数据库取出text类型数据与解决error：Mybatis No enum constant org.apache.ibatis.type.JdbcType.TEXT

近日作者在从数据库中拿取text类型的数据时遇到了这个error

Mybatis No enum constant org.apache.ibatis.type.JdbcType.TEXT

当时我按照一贯的操作，将jdbcType设置为和数据库保持一致的text类型，结果抛出了上述error，说在jdbcType这个枚举类里面没有text

那我们就看一下jdbcType的原码好了

public enum JDBCType implements SQLType {

    /**
     * Identifies the generic SQL type {@code BIT}.
     */
    BIT(Types.BIT),
    /**
     * Identifies the generic SQL type {@code TINYINT}.
     */
    TINYINT(Types.TINYINT),
    /**
     * Identifies the generic SQL type {@code SMALLINT}.
     */
    SMALLINT(Types.SMALLINT),
    /**
     * Identifies the generic SQL type {@code INTEGER}.
     */
    INTEGER(Types.INTEGER),
    /**
     * Identifies the generic SQL type {@code BIGINT}.
     */
    BIGINT(Types.BIGINT),
    /**
     * Identifies the generic SQL type {@code FLOAT}.
     */
    FLOAT(Types.FLOAT),
    /**
     * Identifies the generic SQL type {@code REAL}.
     */
    REAL(Types.REAL),
    /**
     * Identifies the generic SQL type {@code DOUBLE}.
     */
    DOUBLE(Types.DOUBLE),
    /**
     * Identifies the generic SQL type {@code NUMERIC}.
     */
    NUMERIC(Types.NUMERIC),
    /**
     * Identifies the generic SQL type {@code DECIMAL}.
     */
    DECIMAL(Types.DECIMAL),
    /**
     * Identifies the generic SQL type {@code CHAR}.
     */
    CHAR(Types.CHAR),
    /**
     * Identifies the generic SQL type {@code VARCHAR}.
     */
    VARCHAR(Types.VARCHAR),
    /**
     * Identifies the generic SQL type {@code LONGVARCHAR}.
     */
    LONGVARCHAR(Types.LONGVARCHAR),
    /**
     * Identifies the generic SQL type {@code DATE}.
     */
    DATE(Types.DATE),
    /**
     * Identifies the generic SQL type {@code TIME}.
     */
    TIME(Types.TIME),
    /**
     * Identifies the generic SQL type {@code TIMESTAMP}.
     */
    TIMESTAMP(Types.TIMESTAMP),
    /**
     * Identifies the generic SQL type {@code BINARY}.
     */
    BINARY(Types.BINARY),
    /**
     * Identifies the generic SQL type {@code VARBINARY}.
     */
    VARBINARY(Types.VARBINARY),
    /**
     * Identifies the generic SQL type {@code LONGVARBINARY}.
     */
    LONGVARBINARY(Types.LONGVARBINARY),
    /**
     * Identifies the generic SQL value {@code NULL}.
     */
    NULL(Types.NULL),
    /**
     * Indicates that the SQL type
     * is database-specific and gets mapped to a Java object that can be
     * accessed via the methods getObject and setObject.
     */
    OTHER(Types.OTHER),
    /**
     * Indicates that the SQL type
     * is database-specific and gets mapped to a Java object that can be
     * accessed via the methods getObject and setObject.
     */
    JAVA_OBJECT(Types.JAVA_OBJECT),
    /**
     * Identifies the generic SQL type {@code DISTINCT}.
     */
    DISTINCT(Types.DISTINCT),
    /**
     * Identifies the generic SQL type {@code STRUCT}.
     */
    STRUCT(Types.STRUCT),
    /**
     * Identifies the generic SQL type {@code ARRAY}.
     */
    ARRAY(Types.ARRAY),
    /**
     * Identifies the generic SQL type {@code BLOB}.
     */
    BLOB(Types.BLOB),
    /**
     * Identifies the generic SQL type {@code CLOB}.
     */
    CLOB(Types.CLOB),
    /**
     * Identifies the generic SQL type {@code REF}.
     */
    REF(Types.REF),
    /**
     * Identifies the generic SQL type {@code DATALINK}.
     */
    DATALINK(Types.DATALINK),
    /**
     * Identifies the generic SQL type {@code BOOLEAN}.
     */
    BOOLEAN(Types.BOOLEAN),

    /* JDBC 4.0 Types */

    /**
     * Identifies the SQL type {@code ROWID}.
     */
    ROWID(Types.ROWID),
    /**
     * Identifies the generic SQL type {@code NCHAR}.
     */
    NCHAR(Types.NCHAR),
    /**
     * Identifies the generic SQL type {@code NVARCHAR}.
     */
    NVARCHAR(Types.NVARCHAR),
    /**
     * Identifies the generic SQL type {@code LONGNVARCHAR}.
     */
    LONGNVARCHAR(Types.LONGNVARCHAR),
    /**
     * Identifies the generic SQL type {@code NCLOB}.
     */
    NCLOB(Types.NCLOB),
    /**
     * Identifies the generic SQL type {@code SQLXML}.
     */
    SQLXML(Types.SQLXML),

    /* JDBC 4.2 Types */

    /**
     * Identifies the generic SQL type {@code REF_CURSOR}.
     */
    REF_CURSOR(Types.REF_CURSOR),

    /**
     * Identifies the generic SQL type {@code TIME_WITH_TIMEZONE}.
     */
    TIME_WITH_TIMEZONE(Types.TIME_WITH_TIMEZONE),

    /**
     * Identifies the generic SQL type {@code TIMESTAMP_WITH_TIMEZONE}.
     */
    TIMESTAMP_WITH_TIMEZONE(Types.TIMESTAMP_WITH_TIMEZONE);

确实是没有text这个类型，那么怎么办呢，本着内事不决问百度的原则，有位博主说用jdbcType中存在的类型替换就好（额，这个说法也是相当的随意），text是文本类型的数据，与之相似的是char，varchar与long varchar，那么我们就在这三个中间做一个选择吧

首先对他们做个区分