报错:Result map does not contain a value for Java.lang.Integer
办法一:将resultMap="java.lang.Integer"改为resultType="java.lang.Integer"就可以解决问题
办法二:
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<resultMap id="ResultOfInteger" type="java.lang.Integer"> <result column="budget" property="budget" jdbcType="INTEGER" /> </resultMap>
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<select id="select" resultMap="ResultOfInteger" parameterType="java.lang.Integer" > SELECT CASE WHEN moneyIS NULL THEN 0 ELSE moneyEND AS money FROM ( select SUM(money) AS money from ABC where user_id = #{user_id,jdbcType=INTEGER} AND state = 11 AND is_del = 0 ) t </select>
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