我正在编写一个单元测试,通过获取xsd模式并使用python的lxml库验证来验证我生成的sitemap xml:
以下是我的根元素的一些元数据:
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd
http://www.google.com/schemas/sitemap-image/1.1
http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"
这个测试代码:
_xsd_validators = {}
def get_xsd_validator(url):
if url not in _xsd_validators:
_xsd_validators[url] = etree.XMLSchema(etree.parse(StringIO(requests.get(url).content)))
return _xsd_validators[url]
# this util function is later on in a TestCase
def validate_xml(self, content):
content.seek(0)
doc = etree.parse(content)
schema_loc = doc.getroot().attrib.get('{http://www.w3.org/2001/XMLSchema-instance}schemaLocation').split(' ')
# lxml doesn't like multiple namespaces
for i, loc in enumerate(schema_loc):
if i % 2 == 1:
get_xsd_validator(schema_loc[i]).assertValid(doc)
return doc
验证失败的示例XML:
<?xml version="1.0" encoding="UTF-8"?>
<urlset
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.sitemaps.org/schemas/sitemap/0.9
http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd
http://www.google.com/schemas/sitemap-image/1.1
http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"
>
<url>
<loc>https://www.example.com/press</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
<url>
<loc>https://www.example.com/about-faq</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
</urlset>
当我有一个常规的站点地图时,一切都很好,但当我添加到图片站点地图时,标记assertValid
开始失败:
E DocumentInvalid: Element '{http://www.google.com/schemas/sitemap-image/1.1}image': No matching global element declaration available, but demanded by the strict wildcard., line 12
或者:
E DocumentInvalid: Element '{http://www.sitemaps.org/schemas/sitemap/0.9}urlset': No matching global declaration available for the validation root., line 6
答案 0 :(得分:5)
您可以尝试定义一个包装器模式 wrapper-schema.xsd ,它可以导入所需的所有模式,并将此模式与lxml一起使用,而不是使用其他每个模式。
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:import
namespace="http://www.sitemaps.org/schemas/sitemap/0.9"
schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"/>
<xs:import
namespace="http://www.google.com/schemas/sitemap-image/1.1"
schemaLocation="http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"/>
</xs:schema>
我没有python,但这在oXygen中成功验证:
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="wrapper-schema.xsd"
>
<image:image>
<image:loc>http://www.example.com/image</image:loc>
</image:image>
<url>
<loc>https://www.example.com/press</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
<url>
<loc>https://www.example.com/about-faq</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
</urlset>