Validering af XML dokument
Jeg har skrevet nedenstående kode til at validere en xml-fil. Men når jeg prøver at validere filenfår jeg følgende fejl
ERROR: 'cvc-elt.1: Cannot find the declaration of element 'Limits'.'
import java.io.*;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.*;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
import org.w3c.dom.Document;
public class XMLValidator {
private Validator validator;
private final String W3C_XML_SCHEMA = "http://www.w3.org/2001/XMLSchema";
public XMLValidator(InputStream[] schemas) throws SAXException {
SchemaFactory factory = SchemaFactory.newInstance(W3C_XML_SCHEMA);
Source[] sources = new Source[schemas.length];
for (int i = 0; i < schemas.length; i++) {
sources[i] = new StreamSource(schemas[i]);
}
Schema schema = factory.newSchema(sources);
validator = schema.newValidator();
}
public void validate(File xmlFile) throws IOException, SAXException, ParserConfigurationException {
DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
domFactory.setNamespaceAware(true);
DocumentBuilder builder = domFactory.newDocumentBuilder();
Document doc = builder.parse(xmlFile);
DOMSource source = new DOMSource(doc);
DOMResult result = new DOMResult();
validator.validate(source, result);
}
}
-------------
XML filen:
<?xml version="1.0" encoding="UTF-8"?>
<Limits xmlns="http://www.eksperten.dk/2007" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eksperten.dk/2007 Limits.xsd">
<Device orderNo="080z0121" version="1-0x">
<component id="1">
<variable id="2" xsi:type="variableInt16">
<min>0</min>
<max>256</max>
</variable>
<variable id="1" xsi:type="variableInt16">
<min>2</min>
<max>30000</max>
</variable>
</component>
</Device>
</Limits>
---------
Limits.xsd
<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified"
elementFormDefault="qualified"
targetNamespace="http://www.danfoss.com/2006/ak2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:ak2="http://www.eksperten.dk/2007 "
xsi:schemaLocation="http://www.eksperten.dk/2007 ak2BasicTypes.xsd">
<xs:include schemaLocation="ak2BasicTypes.xsd"/>
<xs:element name="Limits">
<xs:complexType>
<xs:sequence>
<xs:element name="Device" minOccurs="1" maxOccurs="1">
<xs:complexType>
<xs:sequence>
<xs:element name="component" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="variable" type="ak2:variableBase" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="id" type="ak2:uint16" use="required" />
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="orderNo" type="xs:string" use="required" />
<xs:attribute name="version" type="xs:string" use="required" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:complexType name="variableBase" abstract="true">
<xs:attribute name="id" type="ak2:uint16" use="required"/>
</xs:complexType>
<xs:complexType name="variableUint8">
<xs:complexContent>
<xs:extension base="ak2:variableBase">
<xs:sequence>
<xs:element name="min" type="ak2:uint8"/>
<xs:element name="max" type="ak2:uint8"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="variableUint16">
<xs:complexContent>
<xs:extension base="ak2:variableBase">
<xs:sequence>
<xs:element name="min" type="ak2:uint16"/>
<xs:element name="max" type="ak2:uint16"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="variableUint32">
<xs:complexContent>
<xs:extension base="ak2:variableBase">
<xs:sequence>
<xs:element name="min" type="ak2:uint32"/>
<xs:element name="max" type="ak2:uint32"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="variableInt8">
<xs:complexContent>
<xs:extension base="ak2:variableBase">
<xs:sequence>
<xs:element name="min" type="ak2:int8"/>
<xs:element name="max" type="ak2:int8"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="variableInt16">
<xs:complexContent>
<xs:extension base="ak2:variableBase">
<xs:sequence>
<xs:element name="min" type="ak2:int16"/>
<xs:element name="max" type="ak2:int16"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="variableInt32">
<xs:complexContent>
<xs:extension base="ak2:variableBase">
<xs:sequence>
<xs:element name="min" type="ak2:int32"/>
<xs:element name="max" type="ak2:int32"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:schema>
-----------------
BasicTypes.xsd
<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.eksperten.com/2007"
attributeFormDefault="unqualified"
elementFormDefault="qualified">
<xs:simpleType name="bool">
<xs:restriction base="xs:boolean">
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="uint8">
<xs:restriction base="xs:unsignedByte"/>
</xs:simpleType>
<xs:simpleType name="uint16">
<xs:restriction base="xs:unsignedShort"/>
</xs:simpleType>
<xs:simpleType name="uint32">
<xs:restriction base="xs:unsignedInt"/>
</xs:simpleType>
<xs:simpleType name="int8">
<xs:restriction base="xs:byte"/>
</xs:simpleType>
<xs:simpleType name="int16">
<xs:restriction base="xs:short"/>
</xs:simpleType>
<xs:simpleType name="int32">
<xs:restriction base="xs:int"/>
</xs:simpleType>
<xs:simpleType name="real32">
<xs:restriction base="xs:decimal">
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="string16">
<xs:restriction base="xs:string">
<xs:maxLength value="16"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="string20">
<xs:restriction base="xs:string">
<xs:maxLength value="20"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="string32">
<xs:restriction base="xs:string">
<xs:maxLength value="32"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>
