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xml schema 建立xml文档

web-app_2_5.xsd

<?xml version="1.0" encoding="UTF-8"?>
<!-- 
    传智播客Schema教学实例文档。
    模拟servlet2.5规范,如果开发人员需要在xml使用当前Schema约束,必须包括指定命名空间。
    格式如下:
    <web-app xmlns="http://www.example.org/web-app_2_5" 
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="http://www.example.org/web-app_2_5 web-app_2_5.xsd"
            version="2.5">
-->
<xsd:schema xmlns="http://www.w3.org/2001/XMLSchema" 
    targetNamespace="http://www.example.org/web-app_2_5"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:tns="http://www.example.org/web-app_2_5" 
    elementFormDefault="qualified">
    
    <xsd:element name="web-app">
        <xsd:complexType>
            <xsd:choice minOccurs="0" maxOccurs="unbounded">
                <xsd:element name="servlet">
                    <xsd:complexType>
                        <xsd:sequence>
                            <xsd:element name="servlet-name"></xsd:element>
                            <xsd:element name="servlet-class"></xsd:element>
                        </xsd:sequence>
                    </xsd:complexType>
                </xsd:element>
                <xsd:element name="servlet-mapping">
                    <xsd:complexType>
                        <xsd:sequence>
                            <xsd:element name="servlet-name"></xsd:element>
                            <xsd:element name="url-pattern" maxOccurs="unbounded"></xsd:element>
                        </xsd:sequence>
                    </xsd:complexType>
                </xsd:element>
                <xsd:element name="welcome-file-list">
                    <xsd:complexType>
                        <xsd:sequence>
                            <xsd:element name="welcome-file" maxOccurs="unbounded"></xsd:element>
                        </xsd:sequence>
                    </xsd:complexType>
                </xsd:element>
            </xsd:choice>
            <xsd:attribute name="version" type="double" use="optional"></xsd:attribute>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://www.example.org/web-app_2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.example.org/web-app_2_5 web-app_2_5.xsd"
    version="2.5">

    <servlet>
        <servlet-name>helloServlet</servlet-name>
        <servlet-class>xxxxxxxxxx</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>helloServlet</servlet-name>
        <url-pattern>/hello</url-pattern>
    </servlet-mapping>
</web-app>

 

xml schema 建立xml文档