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如果遇到报错 Mapped Statements collection does not contain value for ShowTables

1.检查TableMapper的namespace

2.检查mybatis的resources是否添加TableMapper.xml

在mapper文件夹下,一个xml文件对应一个pojo文件(如User类 Table类)同时对应一个数据库表

在给数据库表设置属性名时,避免设置例如 name 之类的名称,以免产生歧义,使mybatis的查询结果为null

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