Schema的快速入门

1、首先编写XML数据文件  

<?xml version="1.0" encoding="UTF-8"?><books xmlns="http://www.example.org/book"       名称空间xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 声明是一个schema实例xsi:schemaLocation="http://www.example.org/book book.xsd">   说明文件的约束位置<book><name></name><price>12</price></book></books>

2、编写schema约束文档数据

<?xml version="1.0" encoding="UTF-8"?><schema xmlns="http://www.w3.org/2001/XMLSchema"   引用W3C中文档标准targetNamespace="http://www.example.org/book"      目标名称空间，为其他文档引用提供方便elementFormDefault="qualified">                    良好的格式   <element name="books"><complexType><sequence><element name="book"><complexType><sequence><element name = "name" type = "string"></element><element name = "price" type = "double"></element></sequence></complexType></element></sequence></complexType></element></schema>

3、引用多个schema文件 

（1）、数据文件

<?xml version="1.0" encoding="UTF-8"?><company xmlns="http://www.example.org/company"xmlns:aa = "http://www.example.org/depatment"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.example.org/company company.xsd http://www.example.org/depatment depatment.xsd"><employee><aa:name>人力资源</aa:name><name>孔明</name></employee></company>

（2）、约束文件

<?xml version="1.0" encoding="UTF-8"?><schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.example.org/company"  elementFormDefault="qualified"> <element name="company"> <complexType> <sequence><element name="employee"><complexType><sequence><any></any><element name = "name" type = "string"></element> </sequence></complexType></element> </sequence> </complexType> </element></schema>

(3)约束文件2 

<?xml version="1.0" encoding="UTF-8"?><schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.example.org/depatment"  elementFormDefault="qualified"> <element name="name" type="string"></element></schema>