XML学习之------>Schema约束XML文件的实例

 ?xmlversion="1.0"encoding="UTF-8"? 

 xs:schemaxmlns:xs="http://www.w3.org/2001/XMLSchema"

 targetNamespace="http://www.itstar.cn/shiporder_1"

 elementFormDefault="qualified" 

 xs:elementname="shiporder" 

 xs:complexType 

 xs:sequence 

 xs:elementname="orderperson"type="xs:string" / 

 xs:elementname="shipto" 

 xs:complexType 

 xs:sequence 

 xs:elementname="name"type="xs:string"/ 

 xs:elementname="address"type="xs:string" / 

 xs:elementname="city"type="xs:string"/ 

 xs:elementname="country"type="xs:string" / 

 /xs:sequence 

 /xs:complexType 

 /xs:element 

 xs:elementname="item"maxOccurs="unbounded" 

 xs:complexType 

 xs:sequence 

 xs:elementname="title"type="xs:string"/ 

 xs:elementname="note"type="xs:string"minOccurs="0"/ 

 xs:elementname="quantity"type="xs:positiveInteger" /xs:element 

 xs:elementname="price"type="xs:decimal"/ 

 /xs:sequence 

 /xs:complexType 

 /xs:element 

 /xs:sequence 

 xs:attributename="orderid"type="xs:string" use="required"/ 

 /xs:complexType 

 /xs:element 

 /xs:schema 

shiporder_2.xsd文件:(不知道为什么此种方式不能加入targetNamespace属性)

 ?xmlversion="1.0"encoding="UTF-8"? 

 xh:schemaxmlns:xh="http://www.w3.org/2001/XMLSchema"

 elementFormDefault="qualified" 

 !-- 简易元素的定义 -- 

 xh:elementname="orderperson"type="xh:string" / 

 xh:elementname="name"type="xh:string"/ 

 xh:elementname="address"type="xh:string" / 

 xh:elementname="city"type="xh:string"/ 

 xh:elementname="country"type="xh:string" / 

 xh:elementname="title"type="xh:string"/ 

 xh:elementname="note"type="xh:string"/ 

 xh:elementname="quantity"type="xh:positiveInteger"/ 

 xh:elementname="price"type="xh:decimal"/ 

 !-- 属性的定义 -- 

 xh:attributename="orderid"type="xh:string" / 

 !-- 复合元素的定义 -- 

 xh:elementname="shipto" 

 xh:complexType 

 xh:sequence 

 xh:elementref="name"/ 

 xh:elementref="address"/ 

 xh:elementref="city"/ 

 xh:elementref="country"/ 

 /xh:sequence 

 /xh:complexType 

 /xh:element 

 xh:elementname="item" 

 xh:complexType 

 xh:sequence 

 xh:elementref="title"/ 

 xh:elementref="note"minOccurs="0"/ 

 xh:elementref="quantity"/ 

 xh:elementref="price"/ 

 /xh:sequence 

 /xh:complexType 

 /xh:element 

 xh:elementname="shiporder" 

 xh:complexType 

 xh:sequence 

 xh:elementref="orderperson"/ 

 xh:elementref="shipto"/ 

 xh:elementref="item"maxOccurs="unbounded"/ 

 /xh:sequence 

 xh:attributeref="orderid"use="required" / 

 /xh:complexType 

 /xh:element 

 /xh:schema 

 ?xmlversion="1.0"encoding="UTF-8"? 

 shiporderxmlns="http://www.itstar.cn/shiporder_1"

 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

 xsi:schemaLocation="http://www.itstar.cn/shiporder_1 shiporder_1.xsd"

 orderid="111" 

 orderperson orderperson /orderperson 

 shipto 

 name name /name 

 address address /address 

 city city /city 

 country country /country 

 /shipto 

 item 

 title title /title 

 note note /note 

 quantity 100 /quantity 

 price 100.0 /price 

 /item 

 item 

 title title /title 

 quantity 200 /quantity 

 price 80.0 /price 

 /item 

 /shiporder