修改污染溯源接口，从history表中获取改为从history天表获取

kaiyu

2020-11-18 8beab91730f3e3cd6b53e4d498f763ff9dc65ef5

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package com.moral.mapper; 
 
import com.moral.common.mapper.BaseMapper; 
import com.moral.entity.Village; 
 
public interface VillageMapper extends BaseMapper<Village>{ 
}