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 specified2022-05-03 08:27:53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 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上一篇：Android Studio 编译报错：download fastutil-7.2.0.jar下一篇：移动通信技术