org.apache.ibatis.exceptions.PersistenceException:
### Error querying database. Cause: java.lang.NullPointerException: target is null for method equals
### Cause: java.lang.NullPointerException: target is null for method equals
报错信息是因为xxxMapper.xml文件sql写的有问题 判断条件未对其进行判空处理,如果其为null会报上述错误
修改也很简单,加上判空处理,示例如下:
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