JAXB: 通过schema验证XML文件
接上文 JAXB：使用annotation绑定XML(xmlns)在使用JAXB解析XML文件的时候我们有时候可能会需要通过schema文件验证XML的格式，接上文的XMLParser.java
示例代码如下：
public static Object unmarshal(InputStream xml, Class<?> clazz) throws SAXException {Object obj = null;ValidationEventCollector vec = new ValidationEventCollector();try {SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI); Schema schema = sf.newSchema(new File("C:\\eclipse\\workspace1\\STAF\\test\\employees.xsd"));JAXBContext jc = JAXBContext.newInstance(clazz.getPackage().getName());Unmarshaller u = jc.createUnmarshaller();u.setSchema(schema); u.setEventHandler(vec);obj = u.unmarshal(xml);} catch (JAXBException e) {throw new RuntimeException("Can't unmarshal the XML file, error message: " + e.getMessage());} finally {if(vec != null && vec.hasEvents()) { for(ValidationEvent ve : vec.getEvents()) { String msg = ve.getMessage(); ValidationEventLocator vel = ve.getLocator(); int line = vel.getLineNumber(); int column = vel.getColumnNumber(); System.out.println(); System.err.println("At line " + line + ", column " + column + ": " + msg); } }}return obj;}
该代码段适用于单一schema，或者在classpath中的多schema验证，如果是classpath外的多schema验证，请结合参考该文：XML validation for multiple schemas 验证使用多个XSD schema的XML文件
页:
[1]