soap规范（3）.txt

一个新的采集工具 一个新的采集工具 一个新的采集工具

作者：bdsc
email: [e-mail]
日期：2001-7-13 17:06:07

以下是一个同时具有简单和复杂成员类型的例子。它显示两层引用。注意"Author"accssor元素的"href"属性是对相应具有"id"属性的值的引用。"Address"与之类似。

<e:Book>
   <title>My Life and Work</title>
   <author href="#Person-1"/>
</e:Book>
<e:Person id="Person-1">
   <name>Henry Ford</name>
   <address href="#Address-2"/>
</e:Person>
<e:Address id="Address-2">
   <email>mailto:[e-mail]</email>
   <web>http://www.henryford.com</web>
</e:Address>

当"Person"的值和"Address"的值是multi-reference时，上面的形式是正确的。如果它们是single-reference，就必须用嵌入的形式，如下所示：

<e:Book>
   <title>My Life and Work</title>
   <author>
       <name>Henry Ford</name>
       <address>
	  <email>mailto:[e-mail]</email>
	  <web>http://www.henryford.com</web>
       </address>
   </author>
</e:Book>
如果添加一个限制，任意两个人都不会有相同的地址，并且地址可以是街道或Email地址，一本书可以有两个作者，编码如下：

<e:Book>
   <title>My Life and Work</title>
   <firstauthor href="#Person-1"/>
   <secondauthor href="#Person-2"/>
</e:Book>
<e:Person id="Person-1">
   <name>Henry Ford</name>
   <address xsi:type="m:Electronic-address">
       <email>mailto:[e-mail]</email>
       <web>http://www.henryford.com</web>
   </address>
</e:Person>
<e:Person id="Person-2">
   <name>Samuel Crowther</name>
   <address xsi:type="n:Street-address">
       <street>Martin Luther King Rd</street>
       <city>Raleigh</city>
       <state>North Carolina</state>
   </address>
</e:Person>

序列化可以包含对不在同一个资源的值的引用：

<e:Book>
   <title>Paradise Lost</title>
   <firstauthor href="http://www.dartmouth.edu/~milton/"/>
</e:Book>

以下是描述上面结构的schema片断：

<element name="Book" type="tns:Book"/>
<complexType name="Book">
   <!-- Either the following group must occur or else the
        href attribute must appear, but not both. -->
   <sequence minOccurs="0" maxOccurs="1">
       <element name="title" type="xsd:string"/>
       <element name="firstauthor" type="tns:Person"/>
       <element name="secondauthor" type="tns:Person"/>
   </sequence>
   <attribute name="href" type="uriReference"/>
   <attribute name="id" type="ID"/>
   <anyAttribute namespace="##other"/>
</complexType>

<element name="Person" base="tns:Person"/>
<complexType name="Person">
   <!-- Either the following group must occur or else the
        href attribute must appear, but not both. -->
   <sequence minOccurs="0" maxOccurs="1">
       <element name="name" type="xsd:string"/>
       <element name="address" type="tns:Address"/>
   </sequence>
   <attribute name="href" type="uriReference"/>
   <attribute name="id" type="ID"/>
   <anyAttribute namespace="##other"/>
</complexType>

<element name="Address" base="tns:Address"/>
<complexType name="Address">
   <!-- Either the following group must occur or else the
        href attribute must appear, but not both. -->
   <sequence minOccurs="0" maxOccurs="1">
       <element name="street" type="xsd:string"/>
       <element name="city" type="xsd:string"/>
       <element name="state" type="xsd:string"/>
   </sequence>
   <attribute name="href" type="uriReference"/>
   <attribute name="id" type="ID"/>
   <anyAttribute namespace="##other"/>
</complexType>