一个小错误浪费了我时间

<mapper namespace="com.runtech.st.persistence.TradingContractMapper"><resultMap type="com.runtech.st.domain.TradingContract" id="contract"><id property="contractCode" column="CONTRACT_CODE" /><result property="productID" column="FT_PRODUCT_ID" /><result property="updown" column="UP_DOWN" /><result property="commissionModel" column="COMMISSION_MODEL" /><result property="commission" column="COMMISSION" /><result property="earnestMoneyRate" column="EARNEST_MONEY_RATE" /><result property="maxContractNumber" column="MAX_CONTRACT_NUMBER" /><result property="minPriceChange" column="MIN_PRICE_CHANGE" /><result property="tradeStatus" column="TRADE_STATUS" /><result property="firstPrice" column="FIRST_PRICE" /><result property="storageId" column="STORAGE_ID" /><result property="deliveryDate" column="DELIVERY_DATE" /><result property="moreOrLess" column="MOREORLESS" /><result property="productionDate" column="PRODUCTION_DATE" /><result property="expireDate" column="Expire_Date" /><result property="takeProductType" column="TAKE_PRODUCT_TYPE" /><result property="contractType" column="CONTRACT_TYPE" /><result property="alternateUnits" column="Alternate_Units" /><result property="deliveryFeeType" column="Delivery_Fee_Type"/><result property="deliveryFeeRate" column="Delivery_Fee_Rate"/></resultMap><resultMap type="java.util.HashMap" id="contractEx" extends="contract"><result property="productName" column="PRODUCT_NAME"/><result property="manufacturer" column="MANUFACTURER"/><result property="productStandard" column="PRODUCT_STANDARD"/><result property="productSpecification" column="PRODUCT_SPECIFICATION"/><result property="productCode" column="PRODUCT_CODE"/><result property="shortName" column="SHORT_NAME"/><result property="storageName" column="STORAGE_NAME"/></resultMap>

这里面关联的表的字段<resultMap type="java.util.HashMap" id="contractEx" extends="contract">

type写的有问题，导致前台无法显示，dubug后后台返回的list是：[{minPriceChange=0, maxContractNumber=1, moreOrLess=1, updown=3, alternateUnits=1。。

type改成<resultMap type="com.runtech.st.domain.TradingContract" id="hashMap" extends="contract">后

问题没有了，list返回的是：[com.runtech.st.domain.TradingContract@465f62b6, com.runtech.st.domain.TradingContract@2049bed2。。

没注意到的一个细节，不明白以前怎么运行对了。。