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1. 服务启动报错

（1）运行界面

Can't map parameter "Serializable id" to "Long id". Consider to declare/implement a mapping method: "Long map(Serializable value)". Occured at 'T selectById(Serializable id)' in 'BaseMapper'.

（2）问题

java: Ambiguous constructors found for creating java.lang.Long: Long(long), Long(java.lang.String). Either declare parameterless constructor or annotate the default constructor with an annotation named @Default. Occured at 'Long selectCount(Wrapper queryWrapper)' in 'BaseMapper'.

java: Can't map parameter "Serializable id" to "Long id". Consider to declare/implement a mapping method: "Long map(Serializable value)". Occured at 'T selectById(Serializable id)' in 'BaseMapper'.

2. 解决

mapper注解引入错误

改为：

import org.apache.ibatis.annotations.Mapper;

本文标签： parameter Serializable java mAP Id

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