//判断前端传来的搜索条件值是否为null,如果为null,1=1;如果不为null,supplier_id=#{supplierId}
where if (#{supplierId} is not null,b.supplier_id=#{supplierId},1=1)
sql if条件语句的判断
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2022-03-18
//判断前端传来的搜索条件值是否为null,如果为null,1=1;如果不为null,supplier_id=#{supplierId}
where if (#{supplierId} is not null,b.supplier_id=#{supplierId},1=1)
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