问题总结:数据库用的是postgresql,orm用的是mybatis, mybatis在处理映射的时候,当出现灭有匹配的类型,而你也没有指定其“jdbcType = OTHER”时,会出现

标题的错误

修改前

Type handler was null on parameter mapping for property 'products'. It was either not specified and/or could not be found for the javaType / jdbcType combination specified

修改后:

Type handler was null on parameter mapping for property 'products'. It was either not specified and/or could not be found for the javaType / jdbcType combination specified

 

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