如何验证 xml 架构中的电子邮件 ID
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How to validate an email id in xml schema
提问by Sunil Kumar Sahoo
Hi I have created a schema to check for email id. which can validate if the email id is [email protected] and [email protected] and [email protected] But i want to validate only [email protected] and [email protected] because i think email can have maximum 2 dots after @ symbol so the third one will be invalid email id So how to validate an email id using schema Below is the schema
嗨，我创建了一个模式来检查电子邮件 ID。它可以验证电子邮件 ID 是否为 [email protected] 和 [email protected] 和 [email protected] 但我只想验证 [email protected] 和 [email protected]因为我认为电子邮件在@ 符号后最多可以有 2 个点，所以第三个将是无效的电子邮件 ID 那么如何使用架构验证电子邮件 ID 下面是架构
<xsd:element name="SSEM" minOccurs="0">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="CNT" minOccurs="0" maxOccurs="unbounded">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="EM" minOccurs="1" nillable="true" type ="singleEmailID"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
Thanks Sunil Kumar Sahoo
感谢 Sunil Kumar Sahoo
回答by Jeff Yates
You will need to define a pattern to match against valid e-mails. Patterns are defined using regular expression syntax. Once you have defined a simple type (based on xs:string) with the appropriate pattern, you can use that for your e-mail type.
您需要定义一个模式来匹配有效的电子邮件。模式是使用正则表达式语法定义的。一旦您xs:string使用适当的模式定义了一个简单类型（基于），您就可以将其用于您的电子邮件类型。
There are several places on the Internet that provide some examples of such types and patterns. An example of an e-mail type is provided here.
Internet 上有几个地方提供了此类类型和模式的一些示例。此处提供了电子邮件类型的示例。
The example given there is as follows (I've edited it slightly to make things a little clearer):
给出的示例如下（我稍微编辑了它以使事情更清楚一些）：
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" >
<xsd:element name="A" type="emailAddress"/>
<xsd:simpleType name="emailAddress">
<xsd:restriction base="xsd:string">
<xsd:pattern value="[^@]+@[^\.]+\..+"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:schema>
回答by marc_s
You could use a <xs:simpleType>based on a string and with a regex pattern to validate your e-mail addresses:
您可以使用<xs:simpleType>基于字符串和正则表达式模式的 a 来验证您的电子邮件地址：
<xsd:simpleType name="emailAddress">
<xsd:restriction base="xsd:string">
<xsd:pattern value="([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})"/>
</xsd:restriction>
</xsd:simpleType>
Use any e-mail regex you like :-), see some samples on RegexLib.Net.
使用您喜欢的任何电子邮件正则表达式 :-)，请参阅RegexLib.Net上的一些示例。
Then, use that type in your basic XML schema:
然后，在您的基本 XML 模式中使用该类型：
<xsd:element name="email" type="emailAddress" />
Could by checked by online validator: https://www.corefiling.com/opensource/schemaValidate.html
可以通过在线验证器检查：https: //www.corefiling.com/opensource/schemaValidate.html
回答by Sunil Kumar Sahoo
Use the below schema validator for email id validation
使用以下架构验证器进行电子邮件 ID 验证
<xsd:simpleType name="emailAddress">
<xsd:restriction base="xsd:string">
<xsd:pattern value="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"/>
</xsd:restriction>
</xsd:simpleType>
回答by Shans Muga
Use this validator for email validation with apostrophe also:
也使用此验证器进行带有撇号的电子邮件验证：
<xsd:simpleType name="emailAddress">
<xsd:restriction base="xsd:string">
<xsd:pattern value="^([0-9a-zA-Z_\.\'\-]+)*@[0-9a-zA-Z\-]+[a-zA-Z\.]+Dollar symbol"/>
</xsd:restriction>
</xsd:simpleType>
It will work as email validation with apostrophe:-)
它将用作带有撇号的电子邮件验证:-)
