我面临的问题是将元素分组为空白而没有输出。我想将所有位置名称相同的货物分组，例如。
将PPGNA.00055396和PPGNA.00055397组合在一起，并将PPGNA.00055473和PPGNA.00055472分开，因为它们共享相同的位置名称
下面的是xml
的xml：
<?xml version="1.0" encoding="UTF-8"?>
<notify>
<Subject>Consolidated Tender Event Notification</Subject>
<Severity>Information</Severity>
<Contact ID="to">
<FirstName>FXNL</FirstName>
<LastName>TENDER</LastName>
<Company>FEDEX NATIONAL (LTL) (FXNL)</Company>
<LocationID>FXNL</LocationID>
<Phone/>
<Fax/>
<Role/>
</Contact>
<contents>
<content>
<subject>PICKUP</subject>
<shipment_gid>PPGNA.00055396</shipment_gid>
<i_transaction_no>1693450</i_transaction_no>
<tender_record>
<bm_refnum>00055396</bm_refnum>
<tender_status>PICKUP NOTIFICATION</tender_status>
<response_time TZ="America/New_York">2015-06-02 19:19:28</response_time>
<number_of_stops>2</number_of_stops>
<total_weight IN="LB">9975.0</total_weight>
<total_volume IN="CUFT">0.0</total_volume>
<total_ship_unit_count>1</total_ship_unit_count>
<stops>
<stop>
<stop_num>2</stop_num>
<planned_arrival TZ="America/New_York">2015-05-26 12:00:00</planned_arrival>
<planned_departure TZ="America/New_York">2015-05-26 12:29:57</planned_departure>
<location_xid>FGL-03520000</location_xid>
<location_name>SHL</location_name>
<city>SHELBY</city>
<province/>
<province_code>NC</province_code>
<zip_code>28150</zip_code>
<country_code>US</country_code>
</stop>
<stop>
<stop_num>1</stop_num>
<planned_arrival TZ="America/Chicago">2015-05-21 13:00:00</planned_arrival>
<planned_departure TZ="America/Chicago">2015-05-21 13:29:57</planned_departure>
<location_xid>FGLSUP-11111113</location_xid>
<location_name>MOMENTIVE SPECIALTY CHEMICALS</location_name>
<city>BEDFORD PARK</city>
<province/>
<province_code>IL</province_code>
<zip_code>60501</zip_code>
<country_code>US</country_code>
</stop>
</stops>
<start_time TZ="America/New_York">2015-05-21 13:00:00</start_time>
<end_time TZ="America/Chicago">2015-05-26 12:29:57</end_time>
<equipments>
<equipment>
<equipment_xid>77661</equipment_xid>
<equipment_type_xid/>
<equipment_type_name/>
<equipment_group_xid>28RT_VAN_TEMPCONTROL</equipment_group_xid>
<equipment_group_name>28FT_TEMPCONTROL_VAN</equipment_group_name>
</equipment>
</equipments>
<remarks>
<remark>
<remark_qual_gid>LTL_SOURCE_ADDRESS</remark_qual_gid>
<remark_text>8600 WEST 71ST STREET</remark_text>
</remark>
<remark>
<remark_qual_gid>DELIVERY_INSTRUCTIONS_LINE_1</remark_qual_gid>
<remark_text>NONE</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_DEST_ADDRESS</remark_qual_gid>
<remark_text>940 WASHBURN SWITCH ROAD</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_TOTAL_PALLET_COUNT</remark_qual_gid>
<remark_text>0</remark_text>
</remark>
</remarks>
</tender_record>
<Type>TENDER</Type>
</content>
<content>
<subject>PICKUP</subject>
<shipment_gid>PPGNA.00055397</shipment_gid>
<i_transaction_no>1693451</i_transaction_no>
<tender_record>
<bm_refnum>00055397</bm_refnum>
<tender_status>PICKUP NOTIFICATION</tender_status>
<response_time TZ="America/New_York">2015-06-02 19:19:52</response_time>
<number_of_stops>2</number_of_stops>
<total_weight IN="LB">9975.0</total_weight>
<total_volume IN="CUFT">0.0</total_volume>
<total_ship_unit_count>1</total_ship_unit_count>
<stops>
<stop>
<stop_num>1</stop_num>
<planned_arrival TZ="America/Chicago">2015-05-21 13:00:00</planned_arrival>
<planned_departure TZ="America/Chicago">2015-05-21 13:29:57</planned_departure>
<location_xid>FGLSUP-11111113</location_xid>
<location_name>MOMENTIVE SPECIALTY CHEMICALS</location_name>
<city>BEDFORD PARK</city>
<province/>
<province_code>IL</province_code>
<zip_code>60501</zip_code>
<country_code>US</country_code>
</stop>
<stop>
<stop_num>2</stop_num>
<planned_arrival TZ="America/New_York">2015-05-26 12:00:00</planned_arrival>
<planned_departure TZ="America/New_York">2015-05-26 12:29:57</planned_departure>
<location_xid>FGL-03520000</location_xid>
<location_name>SHL</location_name>
<city>SHELBY</city>
<province/>
<province_code>NC</province_code>
<zip_code>28150</zip_code>
<country_code>US</country_code>
</stop>
</stops>
<start_time TZ="America/Chicago">2015-05-21 13:00:00</start_time>
<end_time TZ="America/New_York">2015-05-26 12:29:57</end_time>
<equipments>
<equipment>
<equipment_xid>77662</equipment_xid>
<equipment_type_xid/>
<equipment_type_name/>
<equipment_group_xid>28RT_VAN_TEMPCONTROL</equipment_group_xid>
<equipment_group_name>28FT_TEMPCONTROL_VAN</equipment_group_name>
</equipment>
</equipments>
<remarks>
<remark>
<remark_qual_gid>LTL_SOURCE_ADDRESS</remark_qual_gid>
<remark_text>8600 WEST 71ST STREET</remark_text>
</remark>
<remark>
<remark_qual_gid>DELIVERY_INSTRUCTIONS_LINE_1</remark_qual_gid>
<remark_text>NONE</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_TOTAL_PALLET_COUNT</remark_qual_gid>
<remark_text>0</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_DEST_ADDRESS</remark_qual_gid>
<remark_text>940 WASHBURN SWITCH ROAD</remark_text>
</remark>
</remarks>
</tender_record>
<Type>TENDER</Type>
</content>
<content>
<subject>PICKUP</subject>
<shipment_gid>PPGNA.00055473</shipment_gid>
<i_transaction_no>1693453</i_transaction_no>
<tender_record>
<bm_refnum>00055473</bm_refnum>
<tender_status>PICKUP NOTIFICATION</tender_status>
<response_time TZ="America/New_York">2015-06-02 19:21:10</response_time>
<number_of_stops>2</number_of_stops>
<total_weight IN="LB">8000.0</total_weight>
<total_volume IN="CUFT">0.0</total_volume>
<total_ship_unit_count>1</total_ship_unit_count>
<stops>
<stop>
<stop_num>1</stop_num>
<planned_arrival TZ="America/New_York">2015-05-28 09:22:45</planned_arrival>
<planned_departure TZ="America/New_York">2015-05-28 10:22:45</planned_departure>
<location_xid>PGL-0306</location_xid>
<location_name>WORKS 6 PPG INDUSTRIES INC.</location_name>
<city>CARLISLE</city>
<province/>
<province_code>PA</province_code>
<zip_code>17065</zip_code>
<country_code>US</country_code>
</stop>
<stop>
<stop_num>2</stop_num>
<planned_arrival TZ="America/New_York">2015-06-01 12:00:00</planned_arrival>
<planned_departure TZ="America/New_York">2015-06-01 12:00:00</planned_departure>
<location_xid>PGLSU-11111121</location_xid>
<location_name>MATERIAL SCIENCE</location_name>
<city>COLUMBUS</city>
<province/>
<province_code>OH</province_code>
<zip_code>43228</zip_code>
<country_code>US</country_code>
</stop>
</stops>
<start_time TZ="America/New_York">2015-05-28 09:22:45</start_time>
<end_time TZ="America/New_York">2015-06-01 12:00:00</end_time>
<equipments>
<equipment>
<equipment_xid>77849</equipment_xid>
<equipment_type_xid/>
<equipment_type_name/>
<equipment_group_xid>28CV_VAN</equipment_group_xid>
<equipment_group_name>28FT_VAN</equipment_group_name>
</equipment>
</equipments>
<remarks>
<remark>
<remark_qual_gid>DELIVERY_INSTRUCTIONS_LINE_1</remark_qual_gid>
<remark_text>NONE</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_SOURCE_ADDRESS</remark_qual_gid>
<remark_text>400 PARK DRIVE</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_DEST_ADDRESS</remark_qual_gid>
<remark_text>1660 Georgesville Rd</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_TOTAL_PALLET_COUNT</remark_qual_gid>
<remark_text>0</remark_text>
</remark>
</remarks>
</tender_record>
<Type>TENDER</Type>
</content>
<content>
<subject>PICKUP</subject>
<shipment_gid>PPGNA.00055472</shipment_gid>
<i_transaction_no>1693455</i_transaction_no>
<tender_record>
<bm_refnum>00055472</bm_refnum>
<tender_status>PICKUP NOTIFICATION</tender_status>
<response_time TZ="America/New_York">2015-06-02 19:21:43</response_time>
<number_of_stops>2</number_of_stops>
<total_weight IN="LB">8000.0</total_weight>
<total_volume IN="CUFT">0.0</total_volume>
<total_ship_unit_count>1</total_ship_unit_count>
<stops>
<stop>
<stop_num>1</stop_num>
<planned_arrival TZ="America/New_York">2015-05-28 09:20:20</planned_arrival>
<planned_departure TZ="America/New_York">2015-05-28 10:20:20</planned_departure>
<location_xid>PGL-0306</location_xid>
<location_name>WORKS 6 PPG INDUSTRIES INC.</location_name>
<city>CARLISLE</city>
<province/>
<province_code>PA</province_code>
<zip_code>17065</zip_code>
<country_code>US</country_code>
</stop>
<stop>
<stop_num>2</stop_num>
<planned_arrival TZ="America/New_York">2015-06-01 12:00:00</planned_arrival>
<planned_departure TZ="America/New_York">2015-06-01 12:00:00</planned_departure>
<location_xid>PGLSU-11111121</location_xid>
<location_name>MATERIAL SCIENCE</location_name>
<city>COLUMBUS</city>
<province/>
<province_code>OH</province_code>
<zip_code>43228</zip_code>
<country_code>US</country_code>
</stop>
</stops>
<start_time TZ="America/New_York">2015-05-28 09:20:20</start_time>
<end_time TZ="America/New_York">2015-06-01 12:00:00</end_time>
<equipments>
<equipment>
<equipment_xid>77848</equipment_xid>
<equipment_type_xid/>
<equipment_type_name/>
<equipment_group_xid>28CV_VAN</equipment_group_xid>
<equipment_group_name>28FT_VAN</equipment_group_name>
</equipment>
</equipments>
<remarks>
<remark>
<remark_qual_gid>DELIVERY_INSTRUCTIONS_LINE_1</remark_qual_gid>
<remark_text>NONE</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_TOTAL_PALLET_COUNT</remark_qual_gid>
<remark_text>0</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_SOURCE_ADDRESS</remark_qual_gid>
<remark_text>400 PARK DRIVE</remark_text>
</remark>
<remark>
<remark_qual_gid>LTL_DEST_ADDRESS</remark_qual_gid>
<remark_text>1660 Georgesville Rd</remark_text>
</remark>
</remarks>
</tender_record>
<Type>TENDER</Type>
</content>
</contents>
<Locale>
<Language>en</Language>
<Country>US</Country>
<Variant/>
</Locale>
</notify>
和xsl使用
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<!--added code for key-->
<xsl:key name="stops" match="contents/content" use="location_name" />
<html>
<body bgcolor="ffffff" vlink="gray" link="#0000cd" marginwidth="10" marginheight="10" leftmargin="10" topmargin="10">
<table width="658" cellpadding="2">
<tr>
<td colspan="2">
<img alt="" src=""/>
</td>
</tr>
<tr>
<td colspan="2" style="vertical-align: top; font-family: Verdana, Arial, Helvetica; font-size: 16px; ">
<xsl:value-of select="Contact[@ID='to']/Company"/>
</td>
</tr>
<tr>
<td colspan="2" style="vertical-align: top; font-family: Verdana, Arial, Helvetica; font-size: 28px; font-weight: bold; color: #000000;">
Oracle Transportation Management<br/>
Consolidated Pickup Notification
</td>
</tr>
<tr>
<td style="vertical-align: top; font-family: Verdana, Arial, Helvetica; font-size: 12px; font-weight: bold;">
Please see below for a listing of Shipments due for Pickup, or that have been cancelled.
</td>
</tr>
<tr>
<td></td>
</tr>
</table>
<!--Modifying the XSL code for consolidation Sequence below -->
<xsl:for-each select="contents/content[count(. | key('stops', location_name)[1]) = 1]">
<xsl:sort select="location_name" />
<xsl:for-each select="key('stops',location_name)">
<xsl:sort select="shipment_gid"/>
<table width="658" cellpadding="3" style="border-spacing: 4px 0px;">
<xsl:choose>
<xsl:when test="subject='PICKUP_CANCEL'">
<tr>
<td style="color:#E26B0A; font-size: 16px; font-family: Verdana, Arial, Helvetica; font-style:italic; font-weight: bold;" colspan="5">
Pickup Cancel
</td>
</tr>
<tr style="background-color:#fabf8f; font-weight:bold; vertical-align: bottom; font-family: Verdana, Arial, Helvetica; font-size: 12px; ">
<td>Shipment ID</td>
<td>Start Time</td>
<td>Total Weight</td>
<td>Total Volume</td>
<td>Pallet Count</td>
</tr>
<tr style="background-color:#fde9d9; font-family: Verdana, Arial, Helvetica; font-size: 12px; ">
<td><xsl:value-of select="shipment_gid"/></td>
<td><xsl:value-of select="tender_record/start_time"/></td>
<td><xsl:value-of select="tender_record/total_weight"/></td>
<td><xsl:value-of select="tender_record/total_volume"/></td>
<td><xsl:value-of select="tender_record/remarks/remark[remark_qual_gid='LTL_TOTAL_PALLET_COUNT']/remark_text"/></td>
</tr>
</xsl:when>
<xsl:otherwise>
<tr>
<td style="color:#366092; font-size: 16px; font-family: Verdana, Arial, Helvetica; font-style:italic; font-weight: bold;" colspan="5">
Pickup
</td>
</tr>
<tr style="background-color:#538dd5; font-weight:bold; vertical-align: bottom; font-family: Verdana, Arial, Helvetica; font-size: 12px; ">
<td>Shipment ID</td>
<td>Start Time</td>
<td>Total Weight</td>
<td>Total Volume</td>
<td>Pallet Count</td>
</tr>
<tr style="background-color:#c5d9f1; font-family: Verdana, Arial, Helvetica; font-size: 12px; ">
<td><xsl:value-of select="shipment_gid"/></td>
<td><xsl:value-of select="tender_record/start_time"/></td>
<td><xsl:value-of select="tender_record/total_weight"/></td>
<td><xsl:value-of select="tender_record/total_volume"/></td>
<td><xsl:value-of select="tender_record/remarks/remark[remark_qual_gid='LTL_TOTAL_PALLET_COUNT']/remark_text"/></td>
</tr>
</xsl:otherwise>
</xsl:choose>
<tr>
<td></td>
</tr>
<tr>
<td colspan="5" style="background-color:#bfbfbf; font-family: Verdana, Arial, Helvetica; font-size: 12px; ">
Special Instructions: <xsl:value-of select ="tender_record/remarks/remark[remark_qual_gid='DELIVERY_INSTRUCTIONS_LINE_1']/remark_text"/>
</td>
</tr>
<tr>
<td></td>
</tr>
<tr style="background-color:#f2f2f2;">
<td colspan="5">
<table width="658" cellpadding="0" style="vertical-align: top; font-family: Verdana, Arial, Helvetica; font-size: 12px;">
<tr>
<td>
<span style="font-weight: bold">Pickup</span><br/>
<xsl:value-of select="tender_record/stops/stop[stop_num=1]/location_name"/><br/>
<xsl:value-of select="tender_record/remarks/remark[remark_qual_gid='LTL_SOURCE_ADDRESS']/remark_text"/><br/>
<xsl:value-of select="tender_record/stops/stop[stop_num=1]/city"/><xsl:text>, </xsl:text>
<xsl:value-of select="tender_record/stops/stop[stop_num=1]/province_code"/><xsl:text> </xsl:text>
<xsl:value-of select="tender_record/stops/stop[stop_num=1]/zip_code"/><xsl:text> </xsl:text>
<xsl:value-of select="tender_record/stops/stop[stop_num=1]/country_code"/>
</td>
<td>
<span style="font-weight: bold">Delivery</span><br/>
<xsl:value-of select="tender_record/stops/stop[stop_num=2]/location_name"/><br/>
<xsl:value-of select="tender_record/remarks/remark[remark_qual_gid='LTL_DEST_ADDRESS']/remark_text"/><br/>
<xsl:value-of select="tender_record/stops/stop[stop_num=2]/city"/><xsl:text>, </xsl:text>
<xsl:value-of select="tender_record/stops/stop[stop_num=2]/province_code"/><xsl:text> </xsl:text>
<xsl:value-of select="tender_record/stops/stop[stop_num=2]/zip_code"/><xsl:text> </xsl:text>
<xsl:value-of select="tender_record/stops/stop[stop_num=2]/country_code"/>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td></td>
</tr>
<xsl:choose>
<xsl:when test="subject='PICKUP_CANCEL'">
<tr style="background-color:#fabf8f; font-weight:bold; vertical-align: bottom; font-family: Verdana, Arial, Helvetica; font-size: 12px;">
<td>Line Item</td>
<td>Haz Info</td>
<td>Weight</td>
<td>Handling Units</td>
<td>Pallet Count</td>
</tr>
</xsl:when>
<xsl:otherwise>
<tr style="background-color:#538dd5; font-weight:bold; vertical-align: bottom; font-family: Verdana, Arial, Helvetica; font-size: 12px;">
<td>Line Item</td>
<td>Haz Info</td>
<td>Weight</td>
<td>Handling Units</td>
<td>Pallet Count</td>
</tr>
</xsl:otherwise>
</xsl:choose>
<xsl:for-each select="tender_record/remarks/remark[remark_qual_gid='LTL_LINE_INFO']">
<xsl:choose>
<xsl:when test="subject='PICKUP_CANCEL'">
<tr style="background-color:#c5d9f1; font-family: Verdana, Arial, Helvetica; font-size: 12px;">
<td>
<xsl:value-of select="remark_text" disable-output-escaping="yes" />
</td>
</tr>
</xsl:when>
<xsl:otherwise>
<tr style="background-color:#fde9d9; font-family: Verdana, Arial, Helvetica; font-size: 12px;">
<td>
<xsl:value-of select="remark_text" disable-output-escaping="yes" />
</td>
</tr>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
<tr>
<td></td>
</tr>
<tr>
<td></td>
</tr>
</table>
</xsl:for-each>
</xsl:for-each>
<table width="658" cellpadding="2">
<tr>
<td style="vertical-align: top; font-family: Verdana, Arial, Helvetica; font-size: 12px; font-style: italic;">
test
</td>
</tr>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>