我认为“这实际上取决于”，取决于你是如何编码和你引用的方式，所以我要强调两个方法：
方法一：通过直接流
您可以直接将XSD作为输入流传递到您的程序，这样即使在XML文档中没有元素的命名空间时，也不需要依赖“noNamespaceSchemaLocation”属性。
下面是一个示例程序：
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.InputSource;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;
public class XmlSchemaValidationHelper {
public static void main(String[] argv) {
XmlSchemaValidationHelper schemaValidationHelper = new XmlSchemaValidationHelper();
schemaValidationHelper.validateAgainstSchema(new File(argv[0]), new File(argv[1]));
}
public void validateAgainstSchema(File xmlFile, File xsdFile) {
try {
System.out.println("### Starting...");
// parse an XML document into a DOM tree
DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
builderFactory.setNamespaceAware(true);
DocumentBuilder parser = builderFactory.newDocumentBuilder();
Document document = parser.parse(xmlFile);
// create a SchemaFactory capable of understanding WXS schemas
SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
// load a WXS schema, represented by a Schema instance
Source schemaFile = new StreamSource(xsdFile);
Schema schema = factory.newSchema(schemaFile);
// create a Validator instance, which can be used to validate an
// instance document
Validator validator = schema.newValidator();
// validate the DOM tree
validator.validate(new DOMSource(document));
System.out.println("### Finished...");
} catch (FileNotFoundException ex) {
throw new OpenClinicaSystemException("File was not found", ex.getCause());
} catch (IOException ioe) {
throw new OpenClinicaSystemException("IO Exception", ioe.getCause());
} catch (SAXParseException spe) {
spe.printStackTrace();
throw new OpenClinicaSystemException("Line : " + spe.getLineNumber() + " - " + spe.getMessage(), spe.getCause());
} catch (SAXException e) {
throw new OpenClinicaSystemException(e.getMessage(), e.getCause());
} catch (ParserConfigurationException pce) {
throw new OpenClinicaSystemException(pce.getMessage(), pce.getCause());
}
}
public class OpenClinicaSystemException extends RuntimeException {
/**
*
*/
private static final long serialVersionUID = 1L;
private String errorCode;
private Object[] errorParams;
public OpenClinicaSystemException(String code, String message) {
this(message);
this.errorCode = code;
}
public OpenClinicaSystemException(String code, String message, Throwable cause) {
this(message, cause);
this.errorCode = code;
}
public OpenClinicaSystemException(String message, Throwable cause) {
super(message, cause);
}
public OpenClinicaSystemException(Throwable cause) {
super(cause);
}
public OpenClinicaSystemException(String message) {
super(message);
this.errorCode = message;
}
public OpenClinicaSystemException(String code, Object[] errorParams) {
this.errorCode = code;
this.errorParams = errorParams;
}
public OpenClinicaSystemException(String code, Object[] errorParams, String message) {
this(message);
this.errorCode = code;
this.errorParams = errorParams;
}
public String getErrorCode() {
return errorCode;
}
public Object[] getErrorParams() {
return errorParams;
}
public void setErrorParams(Object[] errorParams) {
this.errorParams = errorParams;
}
}
}
运行这样的：E:\xmlValidator>java XmlSchemaValidationHelper po.xml test/po.xsd，你不需要依赖于“noNamespaceSchemaLocation”属性，因为你是直接传递XSD作为输入流的验证/解析器。
这是根据XSD验证XML的快速且肮脏的方法。
方法2：逃离XSD路径正确
你只需要正确地逃脱你的XSD的路径，因此使用以下代替之一：
<Module2Test xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="file:///C://project//module2//src//main//java//com//test//Modules.xsd">
OR
<Module2Test xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="C://project//module2//src//main//java//com//test//Modules.xsd">
阅读MSDN official article大约相同。
最后的话：使用XML命名空间和目标名称
我会建议你应该使用XML命名空间和目标名称与XML模式与正确的XML实例。考虑下面的示例XSD和XML。
对于任何人谁不理解XML命名空间和目标名称的概念，我希望下面的快速分将是有益的：
- 在XSD，您需要定义“目标名称”像这样
targetNamespace="http://www.books.org"这没有什么，但是你正在为你的实际XML实例定义命名空间。您需要在您的XML实例中使用相同的名称空间，即http://www.books.org。
- 在XML实例，您需要：
- 从XSD制作了“目标名称”像这样
xmlns="http://www.books.org"
- 默认的名称空间，然后使用“的schemaLocation”属性来告诉XML验证那又该在XML架构的目标命名空间，并验证将反引用的URI的适当
xsi:schemaLocation="http://www.books.org"
示例XML：
<?xml version="1.0"?>
<BookStore xmlns="http://www.books.org" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.books.org">
<Book>
<Title>My Life and Times</Title>
<Author>Paul McCartney</Author>
<Date>1998</Date>
<ISBN>1-56592-235-2</ISBN>
<Publisher>McMillin Publishing</Publisher>
</Book>
<Book>
<Title>Illusions The Adventures of a Reluctant Messiah</Title>
<Author>Richard Bach</Author>
<Date>1977</Date>
<ISBN>0-440-34319-4</ISBN>
<Publisher>Dell Publishing Co.</Publisher>
</Book>
<Book>
<Title>The First and Last Freedom</Title>
<Author>J. Krishnamurti</Author>
<Date>1954</Date>
<ISBN>0-06-064831-7</ISBN>
<Publisher>Harper & Row</Publisher>
</Book>
</BookStore>
样品XSD：
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.books.org"
xmlns="http://www.books.org"
elementFormDefault="qualified">
<xsd:simpleType name="ISBN-type">
<xsd:restriction base="xsd:string">
<xsd:pattern value="\d{1}-\d{5}-\d{3}-\d{1}|\d{1}-\d{3}-\d{5}-\d{1}|\d{1}-\d{2}-\d{6}-\d{1}"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:element name="BookStore">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="Book" maxOccurs="unbounded">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="Title" type="xsd:string"/>
<xsd:element name="Author" type="xsd:string"/>
<xsd:element name="Date" type="xsd:gYear"/>
<xsd:element name="ISBN" type="ISBN-type"/>
<xsd:element name="Publisher" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
你试过'XSI：noNamespaceSchemaLocation =“文件：/// C：/项目/模块2/src目录/主/ JAVA/COM /测试/ Modules.xsd“'？ –
是的，但我不想使用fulll文件路径到XSD文件的相对路径 – bontade