实现方案一：

<!-- 使用sql 实现 -->
    <insert id="insertBatch" parameterType="java.util.List" useGeneratedKeys="false" >
        INSERT INTO WF_TASKTEMP_DEALSTAFF (DEAL_ID, TEMP_ID, STAFF_ID,DEAL_TYPE, STATUS)
        SELECT WF_TASKTEMP_DEALSTAFF$SEQ.NEXTVAL,a.* FROM (
        <foreach collection="list" item="item" separator="union all">
            SELECT
            #{item.tempId,jdbcType=VARCHAR},
            #{item.staffId,jdbcType=VARCHAR},
            #{item.dealType,jdbcType=VARCHAR},
            #{item.status,jdbcType=CHAR}
            FROM dual
        </foreach>
        ) a
    </insert>

实现方案二：

<!-- 使用存储过程实现 -->       
 <insert id="insertBatch1" parameterType="java.util.List">
            begin
            <foreach collection="list" item="item" index="index">
                insert into WF_TASKTEMP_DEALSTAFF
                (
                  DEAL_ID, TEMP_ID, STAFF_ID,DEAL_TYPE, STATUS
                )
                values(WF_TASKTEMP_DEALSTAFF$SEQ.nextval,
                    #{item.tempId,jdbcType=VARCHAR},
                    #{item.staffId,jdbcType=VARCHAR},
                    #{item.dealType,jdbcType=VARCHAR},
                    #{item.status,jdbcType=CHAR}
                );
            </foreach>
            end;
        </insert>