mybatis动态插入list

<insert id="savePrpcitemkindList" parameterType="java.util.List">
insert into prpcitemkind
(RISKCODE, ITEMKINDNO, FAMILYNO, FAMILYNAME, PROJECTCODE, CLAUSECODE,
CLAUSENAME,
KINDCODE, KINDNAME, ITEMNO, ITEMCODE, ITEMDETAILNAME, GROUPNO, MODECODE,
MODENAME, STARTDATE,
STARTHOUR, ENDDATE, ENDHOUR, MODEL, BUYDATE, ADDRESSNO, CALCULATEFLAG, CURRENCY,
UNITAMOUNT,
QUANTITY, UNIT, VALUE, AMOUNT, RATEPERIOD, RATE, SHORTRATEFLAG, SHORTRATE,
PREPREMIUM, CALPREMIUM,
BASEPREMIUM, BENCHMARKPREMIUM, DISCOUNT, ADJUSTRATE, UNITPREMIUM, PREMIUM,
DEDUCTIBLERATE, DEDUCTIBLE,
FLAG, INSERTTIMEFORHIS, OPERATETIMEFORHIS, TAXRATE, TAXFLAG, TAXFEE,
NETPREMIUM, TAXFEE_GB, TAXFEE_LB, ALLTAXFEE, ALLNETPREMIUM,PROPOSALNO)
<foreach collection="list" item="item" index="index" separator="union all">
<trim prefix="select" suffix="from dual">
<choose>
<when test="item.riskcode != null">#{item.riskcode},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.itemkindno != null">#{item.itemkindno},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.familyno != null">#{item.familyno},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.familyname != null">#{item.familyname},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.projectcode != null">#{item.projectcode},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.clausecode != null">#{item.clausecode},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.clausename != null">#{item.clausename},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.kindcode != null">#{item.kindcode},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.kindname != null">#{item.kindname},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.itemno != null">#{item.itemno},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.itemcode != null">#{item.itemcode},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.itemdetailname != null">#{item.itemdetailname},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.groupno != null">#{item.groupno},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.modecode != null">#{item.modecode},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.modename != null">#{item.modename},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.startdate != null">#{item.startdate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.starthour != null">#{item.starthour},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.enddate != null">#{item.enddate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.endhour != null">#{item.endhour},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.model != null">#{item.model},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.buydate != null">#{item.buydate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.addressno != null">#{item.addressno},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.calculateflag != null">#{item.calculateflag},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.currency != null">#{item.currency},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.unitamount != null">#{item.unitamount},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.quantity != null">#{item.quantity},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.unit != null">#{item.unit},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.value != null">#{item.value},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.amount != null">#{item.amount},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.rateperiod != null">#{item.rateperiod},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.rate != null">#{item.rate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.shortrateflag != null">#{item.shortrateflag},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.shortrate != null">#{item.shortrate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.prepremium != null">#{item.prepremium},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.calpremium != null">#{item.calpremium},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.basepremium != null">#{item.basepremium},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.benchmarkpremium != null">#{item.benchmarkpremium},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.discount != null">#{item.discount},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.adjustrate != null">#{item.adjustrate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.unitpremium != null">#{item.unitpremium},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.premium != null">#{item.premium},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.deductiblerate != null">#{item.deductiblerate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.deductible != null">#{item.deductible},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.flag != null">#{item.flag},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.inserttimeforhis != null">#{item.inserttimeforhis},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.operatetimeforhis != null">#{item.operatetimeforhis},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.taxrate != null">#{item.taxrate},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.taxflag != null">#{item.taxflag},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.taxfee != null">#{item.taxfee},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.netpremium != null">#{item.netpremium},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.taxfee_gb != null">#{item.taxfee_gb},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.taxfee_lb != null">#{item.taxfee_lb},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.alltaxfee != null">#{item.alltaxfee},</when>
<otherwise>null,</otherwise>
</choose>
<choose>
<when test="item.allnetpremium != null">#{item.allnetpremium},</when>
<otherwise>null,</otherwise>
</choose>
#{item.proposalno}
</trim>
</foreach>  
  </insert>