3

我正在尝试使用 DOM 验证器在 Java 中使用 XSD 验证我的 XML。
虽然，手动，我知道该文档确实有效，但 DOM 验证器对我大喊大叫并说： 

cvc-complex-type.3.2.2: Attribute <xsi:schemaLocation> is not allowed to appear in the element <people>

我已确定：
setNamespaceAware()设置为之前设置true
的schemaLanguage属性schemaSource
schemaLanguage设置为http://ww.w3.org/2001/XMLSchema
两者XSD和与and文件 XML在同一个文件夹中.java.class

SSCCE

import org.xml.sax.*;
import org.xml.sax.helpers.*;
import javax.xml.parsers.*;

public class DOMValidator {
    String xmlInstance = null;
    String xmlSchema = null;


    public static void main(String[] args){
        DOMValidator validator = new DOMValidator();
        validator.validateXML("student.xsd",
                              "helloWorld.xml");
    }

    public void validateXML(String xsd,String xml){
        xmlSchema = xsd;
        xmlInstance = xml;
        beginValidation();
    }

    public void beginValidation(){
        try{
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            factory.setNamespaceAware(true);
            factory.setValidating(true);

            factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage",
                                 "http://www.w3.org/2001/XMLSchema");
            factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaSource",
                                 xmlSchema);

            ErrorHandler errorHandler = new ErrorHandler();

            DocumentBuilder builder = factory.newDocumentBuilder();
            builder.setErrorHandler(errorHandler);
            builder.parse(xmlInstance);

            if(errorHandler.errorOccured == true){
                System.out.println("Document is Invalid.");
                System.out.println(errorHandler.ex.getMessage());
            }else{
                System.out.println("Doument is valid");
            }

        }catch(ParserConfigurationException e){
            e.printStackTrace();
        }catch(SAXException e){
            e.printStackTrace();
        }catch(Exception e){
            e.printStackTrace();
        }
    }

    private class ErrorHandler extends DefaultHandler{
        public SAXParseException ex = null;
        public boolean errorOccured = false;

        @Override public void error(SAXParseException ex){
            this.ex = ex;
            errorOccured = true;
        }

        @Override public void fatalError(SAXParseException ex){
            this.ex = ex;
            errorOccured = true;
        }

        @Override public void warning(SAXParseException ex){
            this.ex = ex;
            errorOccured = true;
        }
    }
}

XSD

<xs:schema xmlns:xs="http://www.w3c.org/2001/XMLSchema"
        xmlns="http://www.cmu.edu/ns/blank"
        targetNamespace="http://www.cmu.edu/ns/blank"
        elementFormDefault="qualified">

XML

<people
    xmlns="http://www.cmu.edu/ns/blank"
    xmlns:xsi="http://www.w3c.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.cmu.edu/ns/blank student.xsd">

我该如何解决这个问题？

4

3 回答 3

7

问题在这里： 

<xs:schema xmlns:xs="http://www.w3c.org/2001/XMLSchema" .....>

和 

<people
    xmlns="http://www.cmu.edu/ns/blank"
    xmlns:xsi="http://www.w3c.org/2001/XMLSchema-instance"....>

问题是w3c.org. _ DOM 解析器期望它w3.org无处不在——在 XML 文档中、在 XML Schema 文档中、在schemaLanguage和schemaSource属性中。

于 2013-05-11T10:46:45.100 回答
0

尝试替换此代码：

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
factory.setValidating(true);
factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage",
                     "http://www.w3.org/2001/XMLSchema");
factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaSource",
                     xmlSchema);

有了这个：

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(false); // we will use schema instead of DTD
factory.setNamespaceAware(true);
SchemaFactory schemaFactory = SchemaFactory
                                  .newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
schema = schemaFactory.newSchema(new File(xmlSchema));
factory.setSchema(schema);
于 2014-11-27T10:21:43.613 回答
0

我遇到了类似的问题。在您的 XML 文件中，尝试更改 schemaLocation 属性 -

<... xsi:schemaLocation="http://www.cmu.edu/ns/blank student.xsd">

到 -

<... xsi:noNamespaceSchemaLocation= "student.xsd">

为我工作！

于 2015-04-22T18:39:58.160 回答