博客

一、异常错误

ERROR 17084 --- [           main] o.s.boot.SpringApplication               : Application run failed
……
GetExperimentIdMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.TEXT
……

二、原因

数据库类型是 text类型，使用Mybatis 的 JdbcType也是 TEXT 类型，但 Mybatis 的 JdbcType类上没有这个类型，与text类型对应的应该是LONGVARCHAR类型，注意Mybatis严格区分大小写。

查看jdbcType枚举类源码

package org.apache.ibatis.type;

import java.sql.Types;
import java.util.HashMap;
import java.util.Map;

/**
 * @author Clinton Begin
 */
public enum JdbcType {
  ARRAY(Types.ARRAY),
  BIT(Types.BIT),
  TINYINT(Types.TINYINT),
  SMALLINT(Types.SMALLINT),
  INTEGER(Types.INTEGER),
  BIGINT(Types.BIGINT),
  FLOAT(Types.FLOAT),
  REAL(Types.REAL),
  DOUBLE(Types.DOUBLE),
  NUMERIC(Types.NUMERIC),
  DECIMAL(Types.DECIMAL),
  CHAR(Types.CHAR),
  VARCHAR(Types.VARCHAR),
  LONGVARCHAR(Types.LONGVARCHAR),
  DATE(Types.DATE),
  TIME(Types.TIME),
  TIMESTAMP(Types.TIMESTAMP),
  BINARY(Types.BINARY),
  VARBINARY(Types.VARBINARY),
  LONGVARBINARY(Types.LONGVARBINARY),
  NULL(Types.NULL),
  OTHER(Types.OTHER),
  BLOB(Types.BLOB),
  CLOB(Types.CLOB),
  BOOLEAN(Types.BOOLEAN),
  CURSOR(-10), // Oracle
  UNDEFINED(Integer.MIN_VALUE + 1000),
  NVARCHAR(Types.NVARCHAR), // JDK6
  NCHAR(Types.NCHAR), // JDK6
  NCLOB(Types.NCLOB), // JDK6
  STRUCT(Types.STRUCT),
  JAVA_OBJECT(Types.JAVA_OBJECT),
  DISTINCT(Types.DISTINCT),
  REF(Types.REF),
  DATALINK(Types.DATALINK),
  ROWID(Types.ROWID), // JDK6
  LONGNVARCHAR(Types.LONGNVARCHAR), // JDK6
  SQLXML(Types.SQLXML), // JDK6
  DATETIMEOFFSET(-155); // SQL Server 2008
}

三、解决方法

将jdbcType修改即可

jdbcType=LONGVARCHAR