MyBatis There is no getter for property named ' xx ' in ' Class java.lang.String

When querying with MyBatis, a string is passed in to pass parameters, and when judged, it is reported

 is  for ' Modulecode ' inch ' class java.lang.String  

Error wording:

<SelectId="Queryallparentmodule" Resulttype="Jobmodule" ParameterType="Jobmodule">  SelectModulecode, ModuleName, Modulevalue, Linkurl, rank, Parentmodule=IsNull(Parentmodule,1), Moduledescription fromJob_module<where>                     <Choose>                  < whenTest="Modulecode!=NULL  andModulecode!="'">Modulecode=#{modulecode}</ when>                  < whenTest="Modulecode==NULL orModulecode=="'">(Parentmodule is NULL or Len(Parentmodule)&Lt=0)</ when>            </Choose>          </where>lt;/Select>  

Need to be modified to:

<SelectId="Querymodulebycode" Resulttype="Jobmodule" ParameterType="String">  SelectModulecode, ModuleName, Modulevalue, Linkurl, rank, Parentmodule=IsNull(Parentmodule,1), Moduledescription fromJob_module<where>                     <Choose>                  < whenTest="_parameter!=NULL  and_parameter!="'">Modulecode=#{_parameter}</ when>                  < whenTest="_parameter==NULL or_parameter=="'">(Parentmodule is NULL or Len(Parentmodule)&Lt=0)</ when>            </Choose>          </where>lt;/Select>  

Whatever your parameters are, change them to "_parameter."

MyBatis There is no getter for property named ' xx ' in ' Class java.lang.String