mybatis foreach报错It was either not specified and/or could not be found for the javaType Type handler

或许是惯性思维,在mybatis使用foreach循环调用的时候,很多时候都是传一个对象,传一个List的情况很少,所以写代码有时候会不注意就用惯性思维方法做了。
今天向sql传参,传了一个List作为参数,然后在xml里再foreach循环调用。然后报错信息如:

mybatis foreach报错It was either not specified and/or could not be found for the javaType
Type handler was null on parameter mapping for property '__flowStepCode_0

Mapper接口

List listAllocatedHandlerInfo(@Param("flowStepCodeList")List flowStepCodeList);

原来是这样:#{flowStep},处理方法,换成#{flowStep.flowStepCode},List是个集合来的,要注意,写博客记录

 
             fh.flow_step_code in
            
                        #{flowStep.flowStepCode}
                          

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