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update if判斷進行動態sql拼接

<update id="updateOption" parameterType="com.model.Option">
update system_option
     set
    <if test="url != null and url !=''">
url = #{url},
    </if>
    <if test="description != null and description !=''">
description = #{description},
    </if>
    <if test="name != null and name !=''"
> name = #{name }, </if> <if test="parentID != null and parentID !=''"> parentID = #{parentID }, </if> <if test="sequence != null and sequence !=''"> sequence = #{sequence }, </if> uuid=#{uuid} where uuid = #{uuid} </update>