6、xsd验证xml文件的java代码

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本文介绍了一种使用Java实现的XML文件验证方法，通过XSD文件校验XML的有效性，确保其符合预定义的结构规范。

package com;
import java.io.ByteArrayInputStream;  
import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileNotFoundException;  
import java.io.IOException;  
  
import javax.xml.XMLConstants;  
import javax.xml.stream.FactoryConfigurationError;  
import javax.xml.stream.XMLInputFactory;  
import javax.xml.stream.XMLStreamException;  
import javax.xml.stream.XMLStreamReader;  
import javax.xml.transform.Source;  
import javax.xml.transform.stream.StreamSource;  
import javax.xml.validation.Schema;  
import javax.xml.validation.SchemaFactory;  
import javax.xml.validation.Validator;  
  
import org.apache.axiom.om.OMElement;  
import org.apache.axiom.om.impl.builder.StAXOMBuilder;  
import org.xml.sax.SAXException;  
  
public class validateXML {  
  
    /** 
     * XSD和XML文件放在工程的bin路径下 
     */  
    public static boolean validate(String schemaLocaltion, OMElement request)  
            throws SAXException, IOException {  
        // 获取Schema工厂类  
        // 这里的XMLConstants.W3C_XML_SCHEMA_NS_URI的值就是：//http://www.w3.org/2001/XMLSchema  
        SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);  
        // 获取XSD文件，以流的方式读取到Source中  
        // XSD文件的位置相对于类文件位置  
        Source schemaSource = new StreamSource(new FileInputStream(schemaLocaltion));  
  
        Schema schema = factory.newSchema(schemaSource);  
        // 这里是将一个DOM树对象转换成流对象，以便对DOM树对象验证  
        // 如果是对XML文件进行验证，用FileInputStream即可  
        String input = request.toString();  
        ByteArrayInputStream bais = new ByteArrayInputStream(  
                input.getBytes("UTF-8"));  
        // 获取验证器，验证器的XML Schema源就是之前创建的Schema  
        Validator validator = schema.newValidator();  
  
        Source source = new StreamSource(bais);  
        // 执行验证  
        try {  
            validator.validate(source);  
            return true;  
        } catch (Exception ex) {  
            ex.printStackTrace();  
            return false;  
        } finally {  
            bais.close();  
        }  
    }  
  
    /** 
     * get OMElement soap request from specified XML file. 
     *  
     * @param request 
     * @return 
     * @throws FileNotFoundException 
     * @throws XMLStreamException 
     * @throws FactoryConfigurationError 
     */  
    public static OMElement getRequest(String filePath)  
            throws FileNotFoundException, XMLStreamException,  
            FactoryConfigurationError {  
        XMLStreamReader reader = XMLInputFactory.newInstance()  
                .createXMLStreamReader(  
                        new FileInputStream(new File(filePath)));  
        StAXOMBuilder builder = new StAXOMBuilder(reader);  
        OMElement requestMessage = builder.getDocumentElement();  
        return requestMessage;  
    }  
  
    public static void main(String[] args) {  
        try {  
            if (validate("D:\\Documents\\2014.11work\\mzyw1.xsd", getRequest("D:\\Documents\\2014.11work\\mzyw1.xml"))) {  
                System.out.println("customer_err.xml格式良好");  
            } else {  
                System.out.println("customer_err.xml格式有误，请检查！");  
            }  
        } catch (Exception ex) {  
            ex.printStackTrace();  
            System.out.println("文件格式有误，请检查！");  
        }  
    }  
}