- Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'mybatismappersdemoUserMapper.xml'. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.jt.mapper.DemoUserMapper.selectName. please check mybatismappersdemoUserMapper.xml and mybatismappersdemoUserMapper.xml 这个是由于select中 id 写错了 和其他id重名了
- 规则: mybatis如果遇到多值传参时,默认条件是采用下标的方式获取数据.mybatis天生只支持单值传参,如果遇到多值的问题,则应该将多值封装为单值
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