Hexo

SSM 搭建的项目，启动报错：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'BlahMapper' defined in file [/Users/**/code/server-loan/B/B/target/classes/cn/A/B/mapper/BlahMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for cn.A.B.mapper.BlahMapper.BaseResultMap

Caused by: java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for cn.A.B.mapper.BlahMapper.BaseResultMap

Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for cn.A.B.mapper.BlahMapper.BaseResultMap

Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for cn.A.B.mapper.BlahMapper.BaseResultMap

定位原因是在 mybatis 的 mapper.xml 文件里面有重复的 id 定义。

<select id="getMerchantBySpuId" resultType="java.lang.String">
	select `merchant`
	from `inner_merchant_goods`
	where `goods_id` = #{spuId}
</select>

<select id="getMerchantBySpuId" resultType="java.lang.String">
	select `merchant`
	from `inner_merchant_goods`
	where `goods_id` = #{spuId}
</select>

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