package sax.parsing;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import javax.xml.XMLConstants;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import javax.xml.parsers.ParserConfigurationException;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import javax.xml.validation.Schema;import javax.xml.validation.SchemaFactory;import org.dom4j.DocumentException;import org.dom4j.io.SAXReader;import org.dom4j.io.SAXValidator;import org.testng.annotations.Test;import org.w3c.dom.Document;import org.xml.sax.InputSource;import org.xml.sax.SAXException;import org.xml.sax.SAXParseException;import org.xml.sax.XMLReader;import org.xml.sax.helpers.DefaultHandler;import org.xml.sax.helpers.XMLReaderFactory;public class ErrorProcessor extends DefaultHandler {    @Override    public void warning(SAXParseException exception) throws SAXException {        System.out.println("触发警告：");        System.err.println("warning： " + getLocationString(exception) + ": " + exception.getMessage());    }    @Override    public void error(SAXParseException exception) throws SAXException {        System.out.println("触发错误：");        System.err.println("error： " + getLocationString(exception) + ": " + exception.getMessage());    }    @Override    public void fatalError(SAXParseException exception) throws SAXException {        System.out.println("触发致命错误：");        System.err.println("fatal error： " + getLocationString(exception) + ": " + exception.getMessage());    }    private String getLocationString(SAXParseException ex) {        StringBuffer buffer = new StringBuffer();        String publicId = ex.getPublicId();        if (publicId != null) {            buffer.append(publicId);            buffer.append("  ");        }        String systemId = ex.getSystemId();        if (systemId != null) {            buffer.append(systemId);            buffer.append(‘:‘);        }        buffer.append(ex.getLineNumber());        buffer.append(‘:‘);        buffer.append(ex.getColumnNumber());        return buffer.toString();    }    @Override    public void endElement(String uri, String localName, String qName) throws SAXException {        System.out.println("</" + qName + ">");    }    /**     *  在DOM文件构建工厂中设置校验Schema文件     * @throws IOException      * @throws SAXException      * @throws ParserConfigurationException      */    @Test    public void parseWithSchema() throws SAXException, IOException, ParserConfigurationException {        System.out.println("========== parseWithSchema() start ===============");                SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);        Schema schema = schemaFactory.newSchema(new File("src/students.xsd"));        DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();        builderFactory.setSchema(schema);        DocumentBuilder builder = builderFactory.newDocumentBuilder();        builder.setErrorHandler(new ErrorProcessor());        Document doc = builder.parse("src/students.xml");        System.out.println("========== parseWithSchema() end ===============");    }    @Test    public void read() throws FileNotFoundException, IOException, SAXException {        System.out.println("========== read() start (仅语法校验) ===============");        XMLReader xmlReader = XMLReaderFactory.createXMLReader();        xmlReader.setFeature("http://xml.org/sax/features/validation", true);        xmlReader.setFeature("http://xml.org/sax/features/namespaces", true);        xmlReader.setErrorHandler(new ErrorProcessor());        xmlReader.parse(new InputSource(new FileInputStream("src/students.xml")));        System.out.println("========== read() end ===============");    }    @Test    public void saxValidate() throws ParserConfigurationException, SAXException, DocumentException, FileNotFoundException, IOException {        System.out.println("========== saxValidate() start ===============");        SAXParserFactory parserFactory = SAXParserFactory.newInstance();        parserFactory.setValidating(true); // 等价于 xmlReader.setFeature("http://xml.org/sax/features/validation", true);        parserFactory.setNamespaceAware(true); // 等价于  reader.setFeature("http://xml.org/sax/features/namespaces",true);        SAXParser parser = parserFactory.newSAXParser();        parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");        parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaSource", "file:/D:/eclipse-luna-jee/workspace/xsl_trans/src/students.xsd");        XMLReader xmlReader = parser.getXMLReader();        xmlReader.setErrorHandler(new ErrorProcessor()); // 错误时触发        //xmlReader.setContentHandler(new ErrorProcessor()); // 标签开始、结束等事件时触发        xmlReader.parse(new InputSource(new FileInputStream("src/students.xml")));        System.out.println("========== saxValidate() end ===============");    }            @Test    public void dom4jValidate() throws ParserConfigurationException, SAXException, DocumentException, FileNotFoundException, IOException {        System.out.println("========== dom4jValidate() start ===============");        SAXParserFactory parserFactory = SAXParserFactory.newInstance();        parserFactory.setValidating(true); // 等价于 xmlReader.setFeature("http://xml.org/sax/features/validation", true);        parserFactory.setNamespaceAware(true); // 等价于  reader.setFeature("http://xml.org/sax/features/namespaces",true);        SAXParser parser = parserFactory.newSAXParser();        parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");        parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaSource", "file:/D:/eclipse-luna-jee/workspace/xsl_trans/src/students.xsd");        XMLReader xmlReader = parser.getXMLReader();                /*         * dom4j的校验处理过程          *         org.dom4j.io.SAXReader         *         org.dom4j.Document         *         org.dom4j.io.SAXValidator         */        SAXReader reader = new SAXReader();        org.dom4j.Document doc = reader.read(new File("src/students.xml"));        SAXValidator validator = new SAXValidator(xmlReader);        validator.setErrorHandler(new ErrorProcessor());        validator.validate(doc);        System.out.println("========== dom4jValidate() end ===============");    }}

输出：

========== parseWithSchema() start ===============
error： file:///D:/eclipse-luna-jee/workspace/xsl_trans/src/students.xml:4:41: cvc-complex-type.3.2.2: Attribute ‘attr_test‘ is not allowed to appear in element ‘student‘.触发错误：

触发错误：
error： file:///D:/eclipse-luna-jee/workspace/xsl_trans/src/students.xml:10:40: cvc-complex-type.2.4.a: Invalid content was found starting with element ‘elem_test1‘. One of ‘{student}‘ is expected.
========== parseWithSchema() end ===============

========== read() start (仅语法校验) ===============
触发错误：
error： 3:10: Document is invalid: no grammar found.
触发错误：
error： 3:10: Document root element "students", must match DOCTYPE root "null".
========== read() end ===============

========== saxValidate() start ===============
触发错误：
error： 4:41: cvc-complex-type.3.2.2: Attribute ‘attr_test‘ is not allowed to appear in element ‘student‘.
触发错误：
error： 10:40: cvc-complex-type.2.4.a: Invalid content was found starting with element ‘elem_test1‘. One of ‘{student}‘ is expected.
========== saxValidate() end ===============

========== dom4jValidate() start ===============
触发错误：
error： file:///D:/eclipse-luna-jee/workspace/xsl_trans/src/students.xml:3:41: cvc-complex-type.3.2.2: Attribute ‘attr_test‘ is not allowed to appear in element ‘student‘.
触发错误：
error： file:///D:/eclipse-luna-jee/workspace/xsl_trans/src/students.xml:9:39: cvc-complex-type.2.4.a: Invalid content was found starting with element ‘elem_test1‘. One of ‘{student}‘ is expected.
========== dom4jValidate() end ===============

<?xml version="1.0" encoding="utf-8" ?><students>    <student sn="01" attr_test="errorAttr"><!-- 在student与name父子元素节点之间的是一个文本节点（‘\n\t\t‘） -->        <name>张三</name>        <age>18</age>        <score>100</score>    </student>    <elem_test1 attr_test1="errorAttr1" />        <student sn="02">        <name>lisi</name>        <age>20</age>        <score>100</score>    </student>        <elem_test2 attr_test1="errorAttr2" /></students>

<?xml version="1.0" encoding="utf-8" ?><xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">    <xs:element name="students">        <xs:complexType>            <xs:sequence>                <xs:element name="student" type="studentType" maxOccurs="unbounded" />            </xs:sequence>        </xs:complexType>    </xs:element>        <xs:complexType name="studentType">        <xs:sequence>            <xs:element name="name" type="xs:token" />            <xs:element name="age" type="xs:positiveInteger" />            <xs:element name="score" type="xs:float" />        </xs:sequence>        <xs:attribute name="sn" type="xs:token" />    </xs:complexType></xs:schema>