xsd校验xml

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.StringWriter; 
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
 
import javax.xml.XMLConstants;
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.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.Node;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXValidator;
import org.dom4j.io.XMLWriter;
import org.dom4j.util.XMLErrorHandler;
import org.xml.sax.SAXException;
 
import com.ufgov.bank.common.log.*;
 
public class validateXml {
    private static final SimpleDateFormat sdf2 = new SimpleDateFormat(
            "yyyyMMddHHmmssSSS");
    public boolean validate(String xsdUrl, String xml) throws Exception {
        Date date = new Date();
        LogOperation.writeLog("client","xsd文件路径："+xsdUrl,sdf2.format(date));
        LogOperation.writeLog("client","xsd校验前的xml："+xml,sdf2.format(date));
        // 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(xsdUrl));
        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
        ByteArrayInputStream bais = new ByteArrayInputStream(
                xml.getBytes("GBK"));
        // 获取验证器，验证器的XML Schema源就是之前创建的Schema
        Validator validator = schema.newValidator();
        XMLErrorHandler errorHandler = new XMLErrorHandler();
        validator.setErrorHandler(errorHandler);
        Source source = new StreamSource(bais);
        // 执行验证
        try {
            validator.validate(source);
            if (errorHandler.getErrors().hasContent()) {
                List errorlist = errorHandler.getErrors().selectNodes("error");
                for (int i =   0; i < errorlist.size(); i++) {
 
                    String errorMsg = getErrorMsg(xsdUrl,
                            (Element) errorlist.get(i));
                    if (errorMsg != null) {
                        System.out.println(errorMsg);
                         
                        LogOperation.writeLog("client",errorMsg,sdf2.format(date));
                    }
                }
                return false;
            } else {
                return true;
            }
             
        } catch (Exception ex) {
            ex.printStackTrace();
            //throw ex;
            return false;
        } finally {
            bais.close();
        }
    }
 
    private static String getErrorMsg(String path, Element errorElement)
            throws Exception {
        String errorContent = errorElement.getText();
        String attribute = "attribute ‘";
        String strAttrib = "";
        if (errorContent.toLowerCase().indexOf("‘data‘") >=   0) {
            strAttrib = "dataAttribute";
        } else if (errorContent.toLowerCase().indexOf("‘row‘") >=   0) {
            strAttrib = "rowAttribute";
        }
        if (errorContent.toLowerCase().indexOf(attribute) >=   0) {
            String tempContent = errorContent.substring(errorContent
                    .toLowerCase().indexOf(attribute) + attribute.length());
            String attributeName = tempContent.substring(  0,
                    tempContent.indexOf("‘"));
            Document document = TextReader.ReadXmlFile(new File(path));
            String errorPath = "xs:attributeGroup[@name=‘" + strAttrib + "‘]/"
                    + "xs:attribute[@name=‘" + attributeName + "‘]/@id";
            Node errorNode = document.getRootElement().selectSingleNode(
                    errorPath);
            return errorNode.getText()+":["+errorContent+"]";
        }
        return null;
    }
 
}