Spring boot+mybatis Multi-link query, duplicate foreign key

<resultmapId= "Recmap"Type= "Com.winter.entity.work.RecruitEntity">
<idColumn= "rec_id"Property= "RecId"/>
<resultColumn= "Rec_name"Property= "Recname"/>
<resultColumn= "Rec_number"Property= "Recnumber"/>
<resultColumn= "education_id"Property= "Educationid"/>
<resultColumn= "Rec_year"Property= "Recyear"/>
<resultColumn= "Rec_describe"Property= "Recdescribe"/>
<resultColumn= "Acceptance_of_disability"Property= "Acceptanceofdisability"/>
<resultColumn= "Contacts"Property= "Contacts"/>
<resultColumn= "Contacts_number"Property= "Contactsnumber"/>
<resultColumn= "Contacts_email"Property= "Contactsemail"/>
<resultColumn= "Pec_time"Property= "Pectime"/>
<resultColumn= "Detailed_address"Property= "Detailedaddress"/>
<associationProperty= "Positionentity"Javatype= "Com.winter.entity.work.PositionEntity">
<idColumn= "pos_id"Property= "Posid"/>
<resultColumn= "Pos_name"Property= "Posname"/>
</association>
<associationProperty= "Salaryentity"Javatype= "Com.winter.entity.work.SalaryEntity">
<idColumn= "sal_id"Property= "Salid"/>
<resultColumn= "Sal_name"Property= "Salname"/>
</association>
<associationColumn= "Rec_province"Property= "Recprovince"Javatype= "Com.winter.entity.RegionEntity">
<idColumn= "reg_id"Property= "Regid"/>
<resultColumn= "Reg_name"Property= "Regname"/>
<resultColumn= "pid"Property= "pid"/>
</association>
<associationColumn= "Rec__city"Property= "Reccity"Javatype= "Com.winter.entity.RegionEntity">
<idColumn= "reg_id"Property= "Regid"/>
<resultColumn= "Reg_name"Property= "Regname"/>
<resultColumn= "pid"Property= "pid"/>
<resultColumn= "Rec_type"Property= "RecType"/>
</association>
<associationColumn= "Rec_town"Property= "Rectown"Javatype= "Com.winter.entity.RegionEntity">
<idColumn= "reg_id"Property= "Regid"/>
<resultColumn= "Reg_name"Property= "Regname"/>
</association>
<association property= "companyentity" javatype= "com.winter.entity.work.CompanyEntity" >
<id column= "com_id" property= "Comid"/>
<result column= "Com_name" property= "Comname"/>
</association>
<collection property= "resumeentities" oftype= "com.winter.entity.work.ResumeEntity" >
<id column= "res_id" property= "ResId"/>
<result column= "Res_name" property= "Resname"/>
</collection>
<collection property= "treatmententities" oftype= "com.winter.entity.work.TreatmentEntity" >
<id column= "tre_id" property= "Treid"/>
<result column= "Tre_name" property= "Trename"/>
</collection>
</resultMap>     

<selectId= "Queryrecall"Resultmap= "Recmap"ParameterType= "Com.winter.util.ConditionUtil">
Select
Rec.*,
POS.POS_ID,
Pos.pos_name,
SAL.SAL_ID,
Sal.sal_name,
REG1.REG_ID,
Reg1.reg_name,
REG2.REG_ID,
Reg2.reg_name,
REG3.REG_ID,
Reg3.reg_name,
COM.COM_ID,
Com.com_name,
RES.RES_ID,
Res.title,
TRE.TRE_ID,
Tre.tre_name
From Cw_recruit Rec
Left OUTER join Cw_position as pos on pos.pos_id = rec.pos_id
Left outer joins Cw_salary as sal on sal.sal_id = rec.sal_id
Left outer joins Cw_region as REG1 on reg1.reg_id = rec.rec_province
Left outer joins Cw_region as REG2 on reg2.reg_id = rec.rec_city
Left outer joins Cw_region as reg3 on reg3.reg_id = Rec.rec_town
Left outer join Cw_company as COM on com.com_id = rec.com_id
Left outer join Cw_recres as RRS on rrs.rec_id = rec.rec_id
Left OUTER join Cw_resume as res on res.res_id = rrs.res_id
Left OUTER join Cw_rectre as RCS on rcs.rec_id = rec.rec_id
Left outer joins Cw_treatment as tre on tre.tre_id = rcs.tre_id
Limit #{begin}, #{pagesize}
</select>
The results are as follows:
recruitentity{
Recid=1,
Recname= ' Anme ',
Positionentity=positionentity{...},
Resumeentities=[],
Salaryentity=salaryentity{...},
Treatmententities=[treatmententity{...}],
recprovince=regionentity{regid=2, pid=0, Regname= ' Wen Town '},
reccity=regionentity{regid=2, pid=0, Regname= ' Wen Town '},
rectown=regionentity{regid=2, pid=0, Regname= ' Wen Town '},
}
Three duplicate data, but SQL statements in the database run no problem, I do not know who can answer one or two??

Spring boot+mybatis Multi-link query, duplicate foreign key