delete attempted to return null from a method with a primitive return type (int)
今天被自己给蠢死了 今天在代码中遇到这个错误， 百度翻译一下：映射方法，从一org.system.mapper.child.chmorganizationexaminationmapper.de ...
原文：mysql查询null异常:attempted to return null from a method with a primitive return type
select sum deposit amount from tb commission ib day mysql查询时报异常: attempted to return null from a method with a primitive return type 是因为查询时结果是 null, 需要给默认值 select IFNULL sum deposit amount , from tb c ...
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attempted to return null from a method with a primitive return type (int)
之一，它可以接受两个参数，如果查询结果不是NULL，则返回第一个参数。 否则返回第二个参数。两个参数也可以是文 ...
Mybatis：Mapper method attempted to return null from a method with a primitive return type (int)
关键词 SpringMVC SSM Mybatis eclipse 报错内容 Mybatis：Mapper method attempted to return null from a method with a primitive return type (int) 原因 ...
mybatis查询时使用基本数据类型接收报错-attempted to return null from a method with a primitive return type (int)
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mybatis中报错attempted to return null from a method with a primitive return type (int).
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使用mybatis报错：Mapper method 'com.xin.dao.BlogMapper.addBlog attempted to return null from a method with a primitive return type (int).
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