具有命名空间的节点上的访问属性

Access attribute on node which has namespace

我在 post 中粘贴了 xml,我想使用 groovy XmlSlurper 来访问属性 xlink:href 不是 [=22] 的节点语言=].我通过以下方式使用 XmlSlurper 阅读 xml:

 def node = xmlSlurper.parseText(xml).declareNamespace(
                xlink:"http://www.w3.org/1999/xlink"
        );

然后我尝试访问具有名称和属性的所有节点并处理此属性:

node.depthFirst().findAll {
            it.name() == "language" && it["@xlink.href"]?.text().trim()
        }.each {
            println(it["@xlink.href"]?.text())
        }

@xlink.href 似乎总是空的,但它就在那里。调试代码我注意到它在节点语言上的属性具有值:

"{http://www.w3.org/1999/xlink}href" -> "http://prestashop.cartisy.com/api/languages/1"

在节点语言上访问 xlink.href 属性的正确方法是什么?

<?xml version="1.0" encoding="UTF-8"?>
<prestashop xmlns:xlink="http://www.w3.org/1999/xlink">
    <product>
        <id><![CDATA[1]]></id>
        <id_manufacturer xlink:href="http://prestashop.test.com/api/manufacturers/1"><![CDATA[1]]></id_manufacturer>
        <id_supplier xlink:href="http://prestashop.test.com/api/suppliers/1"><![CDATA[1]]></id_supplier>
        <id_category_default xlink:href="http://prestashop.test.com/api/categories/5"><![CDATA[5]]></id_category_default>
        <new />
        <cache_default_attribute><![CDATA[1]]></cache_default_attribute>
        <id_default_image xlink:href="http://prestashop.test.com/api/images/products/1/1" not_filterable="true"><![CDATA[1]]></id_default_image>
        <id_default_combination xlink:href="http://prestashop.test.com/api/combinations/1" not_filterable="true"><![CDATA[1]]></id_default_combination>
        <id_tax_rules_group xlink:href="http://prestashop.test.com/api/tax_rule_groups/1"><![CDATA[1]]></id_tax_rules_group>
        <position_in_category not_filterable="true"><![CDATA[0]]></position_in_category>
        <manufacturer_name not_filterable="true"><![CDATA[Fashion Manufacturer]]></manufacturer_name>
        <quantity not_filterable="true"><![CDATA[0]]></quantity>
        <type not_filterable="true"><![CDATA[simple]]></type>
        <id_shop_default><![CDATA[1]]></id_shop_default>
        <reference><![CDATA[demo_1]]></reference>
        <supplier_reference />
        <location />
        <width><![CDATA[0.000000]]></width>
        <height><![CDATA[0.000000]]></height>
        <depth><![CDATA[0.000000]]></depth>
        <weight><![CDATA[0.000000]]></weight>
        <quantity_discount><![CDATA[0]]></quantity_discount>
        <ean13><![CDATA[0]]></ean13>
        <upc />
        <cache_is_pack><![CDATA[0]]></cache_is_pack>
        <cache_has_attachments><![CDATA[0]]></cache_has_attachments>
        <is_virtual><![CDATA[0]]></is_virtual>
        <on_sale><![CDATA[0]]></on_sale>
        <online_only><![CDATA[0]]></online_only>
        <ecotax><![CDATA[0.000000]]></ecotax>
        <minimal_quantity><![CDATA[1]]></minimal_quantity>
        <price><![CDATA[19.980000]]></price>
        <wholesale_price><![CDATA[4.950000]]></wholesale_price>
        <unity />
        <unit_price_ratio><![CDATA[0.000000]]></unit_price_ratio>
        <additional_shipping_cost><![CDATA[0.00]]></additional_shipping_cost>
        <customizable><![CDATA[0]]></customizable>
        <text_fields><![CDATA[0]]></text_fields>
        <uploadable_files><![CDATA[0]]></uploadable_files>
        <active><![CDATA[1]]></active>
        <redirect_type><![CDATA[404]]></redirect_type>
        <id_product_redirected><![CDATA[0]]></id_product_redirected>
        <available_for_order><![CDATA[1]]></available_for_order>
        <available_date><![CDATA[0000-00-00]]></available_date>
        <condition><![CDATA[new]]></condition>
        <show_price><![CDATA[1]]></show_price>
        <indexed><![CDATA[1]]></indexed>
        <visibility><![CDATA[both]]></visibility>
        <advanced_stock_management><![CDATA[0]]></advanced_stock_management>
        <date_add><![CDATA[2014-10-29 21:55:10]]></date_add>
        <date_upd><![CDATA[2014-10-29 21:55:10]]></date_upd>
        <meta_description>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1" />
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2" />
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3" />
        </meta_description>
        <meta_keywords>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1" />
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2" />
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3" />
        </meta_keywords>
        <meta_title>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1" />
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2" />
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3" />
        </meta_title>
        <link_rewrite>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1"><![CDATA[faded-short-sleeve-tshirts]]></language>
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2"><![CDATA[faded-short-sleeve-tshirts]]></language>
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3"><![CDATA[faded-short-sleeve-tshirts]]></language>
        </link_rewrite>
        <name>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1"><![CDATA[Faded Short Sleeve T-shirts]]></language>
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2"><![CDATA[Faded Short Sleeve T-shirts]]></language>
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3"><![CDATA[Faded Short Sleeve T-shirts]]></language>
        </name>
        <description>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1"><![CDATA[<p>Fashion has been creating well-designed collections since 2010. The brand offers feminine designs delivering stylish separates and statement dresses which has since evolved into a full ready-to-wear collection in which every item is a vital part of a woman's wardrobe. The result? Cool, easy, chic looks with youthful elegance and unmistakable signature style. All the beautiful pieces are made in Italy and manufactured with the greatest attention. Now Fashion extends to a range of accessories including shoes, hats, belts and more!</p>]]></language>
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2"><![CDATA[<p>Fashion has been creating well-designed collections since 2010. The brand offers feminine designs delivering stylish separates and statement dresses which has since evolved into a full ready-to-wear collection in which every item is a vital part of a woman's wardrobe. The result? Cool, easy, chic looks with youthful elegance and unmistakable signature style. All the beautiful pieces are made in Italy and manufactured with the greatest attention. Now Fashion extends to a range of accessories including shoes, hats, belts and more!</p>]]></language>
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3"><![CDATA[<p>Fashion has been creating well-designed collections since 2010. The brand offers feminine designs delivering stylish separates and statement dresses which has since evolved into a full ready-to-wear collection in which every item is a vital part of a woman's wardrobe. The result? Cool, easy, chic looks with youthful elegance and unmistakable signature style. All the beautiful pieces are made in Italy and manufactured with the greatest attention. Now Fashion extends to a range of accessories including shoes, hats, belts and more!</p>]]></language>
        </description>
        <description_short>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1"><![CDATA[<p>Faded short sleeve t-shirt with high neckline. Soft and stretchy material for a comfortable fit. Accessorize with a straw hat and you're ready for summer!</p>]]></language>
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2"><![CDATA[<p>Faded short sleeve t-shirt with high neckline. Soft and stretchy material for a comfortable fit. Accessorize with a straw hat and you're ready for summer!</p>]]></language>
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3"><![CDATA[<p>Faded short sleeve t-shirt with high neckline. Soft and stretchy material for a comfortable fit. Accessorize with a straw hat and you're ready for summer!</p>]]></language>
        </description_short>
        <available_now>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1"><![CDATA[In stock]]></language>
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2"><![CDATA[In stock]]></language>
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3"><![CDATA[In stock]]></language>
        </available_now>
        <available_later>
            <language id="1" xlink:href="http://prestashop.test.com/api/languages/1" />
            <language id="2" xlink:href="http://prestashop.test.com/api/languages/2" />
            <language id="3" xlink:href="http://prestashop.test.com/api/languages/3" />
        </available_later>
        <associations>
            <categories node_type="categories">
                <categories xlink:href="http://prestashop.test.com/api/categories/2">
                    <id><![CDATA[2]]></id>
                </categories>
                <categories xlink:href="http://prestashop.test.com/api/categories/3">
                    <id><![CDATA[3]]></id>
                </categories>
                <categories xlink:href="http://prestashop.test.com/api/categories/4">
                    <id><![CDATA[4]]></id>
                </categories>
                <categories xlink:href="http://prestashop.test.com/api/categories/5">
                    <id><![CDATA[5]]></id>
                </categories>
            </categories>
            <images node_type="images">
                <images xlink:href="http://prestashop.test.com/api/images/products/1/1">
                    <id><![CDATA[1]]></id>
                </images>
                <images xlink:href="http://prestashop.test.com/api/images/products/1/2">
                    <id><![CDATA[2]]></id>
                </images>
                <images xlink:href="http://prestashop.test.com/api/images/products/1/3">
                    <id><![CDATA[3]]></id>
                </images>
                <images xlink:href="http://prestashop.test.com/api/images/products/1/4">
                    <id><![CDATA[4]]></id>
                </images>
            </images>
            <combinations node_type="combinations">
                <combinations xlink:href="http://prestashop.test.com/api/combinations/1">
                    <id><![CDATA[1]]></id>
                </combinations>
                <combinations xlink:href="http://prestashop.test.com/api/combinations/2">
                    <id><![CDATA[2]]></id>
                </combinations>
                <combinations xlink:href="http://prestashop.test.com/api/combinations/3">
                    <id><![CDATA[3]]></id>
                </combinations>
                <combinations xlink:href="http://prestashop.test.com/api/combinations/4">
                    <id><![CDATA[4]]></id>
                </combinations>
                <combinations xlink:href="http://prestashop.test.com/api/combinations/5">
                    <id><![CDATA[5]]></id>
                </combinations>
                <combinations xlink:href="http://prestashop.test.com/api/combinations/6">
                    <id><![CDATA[6]]></id>
                </combinations>
            </combinations>
            <product_option_values node_type="product_option_values">
                <product_option_values xlink:href="http://prestashop.test.com/api/product_option_values/1">
                    <id><![CDATA[1]]></id>
                </product_option_values>
                <product_option_values xlink:href="http://prestashop.test.com/api/product_option_values/13">
                    <id><![CDATA[13]]></id>
                </product_option_values>
                <product_option_values xlink:href="http://prestashop.test.com/api/product_option_values/14">
                    <id><![CDATA[14]]></id>
                </product_option_values>
                <product_option_values xlink:href="http://prestashop.test.com/api/product_option_values/2">
                    <id><![CDATA[2]]></id>
                </product_option_values>
                <product_option_values xlink:href="http://prestashop.test.com/api/product_option_values/3">
                    <id><![CDATA[3]]></id>
                </product_option_values>
            </product_option_values>
            <product_features node_type="product_features">
                <product_features xlink:href="http://prestashop.test.com/api/product_features/5">
                    <id><![CDATA[5]]></id>
                    <custom><![CDATA[0]]></custom>
                    <id_feature_value xlink:href="http://prestashop.test.com/api/product_feature_values/5"><![CDATA[5]]></id_feature_value>
                </product_features>
                <product_features xlink:href="http://prestashop.test.com/api/product_features/6">
                    <id><![CDATA[6]]></id>
                    <custom><![CDATA[0]]></custom>
                    <id_feature_value xlink:href="http://prestashop.test.com/api/product_feature_values/11"><![CDATA[11]]></id_feature_value>
                </product_features>
                <product_features xlink:href="http://prestashop.test.com/api/product_features/7">
                    <id><![CDATA[7]]></id>
                    <custom><![CDATA[0]]></custom>
                    <id_feature_value xlink:href="http://prestashop.test.com/api/product_feature_values/17"><![CDATA[17]]></id_feature_value>
                </product_features>
            </product_features>
            <tags node_type="tags" />
            <stock_availables node_type="stock_availables">
                <stock_availables xlink:href="http://prestashop.test.com/api/stock_availables/1">
                    <id><![CDATA[1]]></id>
                    <id_product_attribute><![CDATA[0]]></id_product_attribute>
                </stock_availables>
                <stock_availables xlink:href="http://prestashop.test.com/api/stock_availables/8">
                    <id><![CDATA[8]]></id>
                    <id_product_attribute><![CDATA[1]]></id_product_attribute>
                </stock_availables>
                <stock_availables xlink:href="http://prestashop.test.com/api/stock_availables/9">
                    <id><![CDATA[9]]></id>
                    <id_product_attribute><![CDATA[2]]></id_product_attribute>
                </stock_availables>
                <stock_availables xlink:href="http://prestashop.test.com/api/stock_availables/10">
                    <id><![CDATA[10]]></id>
                    <id_product_attribute><![CDATA[3]]></id_product_attribute>
                </stock_availables>
                <stock_availables xlink:href="http://prestashop.test.com/api/stock_availables/11">
                    <id><![CDATA[11]]></id>
                    <id_product_attribute><![CDATA[4]]></id_product_attribute>
                </stock_availables>
                <stock_availables xlink:href="http://prestashop.test.com/api/stock_availables/12">
                    <id><![CDATA[12]]></id>
                    <id_product_attribute><![CDATA[5]]></id_product_attribute>
                </stock_availables>
                <stock_availables xlink:href="http://prestashop.test.com/api/stock_availables/13">
                    <id><![CDATA[13]]></id>
                    <id_product_attribute><![CDATA[6]]></id_product_attribute>
                </stock_availables>
            </stock_availables>
            <accessories node_type="products" />
            <product_bundle node_type="products" />
        </associations>
    </product>
</prestashop>

@ns:attr 不是 @ns.attr:

def node = new groovy.util.XmlSlurper().parseText('''\
<?xml version="1.0" encoding="UTF-8"?>
<prestashop xmlns:xlink="http://www.w3.org/1999/xlink">
<meta_description>
<language id="1" xlink:href="http://prestashop.test.com/api/languages/1" />
<language id="2" xlink:href="http://prestashop.test.com/api/languages/2" />
<language id="3" xlink:href="http://prestashop.test.com/api/languages/3" />
</meta_description>
</prestashop>
''').declareNamespace(
    xlink:"http://www.w3.org/1999/xlink")

node.depthFirst().findAll {
    it.name() == "language" && it["@xlink:href"]?.text()?.trim()
    //                                  ~~~
}.each {
    println(it["@xlink:href"]?.text())
    //               ~~~
}
//=> http://prestashop.test.com/api/languages/1
//=> http://prestashop.test.com/api/languages/2
//=> http://prestashop.test.com/api/languages/3