org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.-优快云博客

本文介绍了一个关于MyBatis中参数映射的问题，具体表现为无法找到对应的ItemsQueryVo参数映射，最终发现原因是将Mapper.xml文件中的parameterType误写为已废弃的parameterMap。

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HTTP Status 500 - Request processing failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo

type Exception report

message Request processing failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:927)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
root cause

org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo
org.apache.ibatis.builder.MapperBuilderAssistant.setStatementParameterMap(MapperBuilderAssistant.java:319)
org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:283)
在网上查了好久，才发现这个原因。我把Mapper.xml中的parameterType写成了parameterMap,而mybaties中已经不再用这个属性了。