Mule Mongo查询日期范围

<mule xmlns:mongo="http://www.mulesoft.org/schema/mule/mongo"
    xmlns:ee="http://www.mulesoft.org/schema/mule/ee/core"
    xmlns="http://www.mulesoft.org/schema/mule/core"
    xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://www.mulesoft.org/schema/mule/mongo http://www.mulesoft.org/schema/mule/mongo/current/mule-mongo.xsd
        http://www.mulesoft.org/schema/mule/ee/core http://www.mulesoft.org/schema/mule/ee/core/current/mule-ee.xsd
        http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd">

    <mongo:config name="Mongo_DB_Config" doc:name="Mongo DB Config" >
        <mongo:connection-settings host="localhost" port="27017" database="mydb" />
    </mongo:config>

    <flow name="Query_Date_Range_Flow">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/query" doc:name="HTTP" />
        <mongo:find-objects-using-query-map config-ref="Mongo_DB_Config" collection="mycollection" doc:name="Mongo DB">
            <mongo:query-attributes>
                <mongo:query-attribute key="dateField">
                    <mongo:greater-than-equal-to value="#[server.dateTime.minusDays(7)]" />
                    <mongo:less-than-equal-to value="#[server.dateTime]" />
                </mongo:query-attribute>
            </mongo:query-attributes>
        </mongo:find-objects-using-query-map>
        <!-- 处理查询结果 -->
    </flow>
</mule>