Java HTML/XML - 如何针对JAXB实体的Schema验证XML

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import javax.xml.XMLConstants;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.util.JAXBSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;

import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

public class Main {

    public static void main(String[] args) throws Exception {
        Customer customer = new Customer();
        customer.setName("abcabcabcabcabcabcabc");
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());
        customer.getPhoneNumbers().add(new PhoneNumber());

        JAXBContext jc = JAXBContext.newInstance(Customer.class);
        JAXBSource source = new JAXBSource(jc, customer);

        SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        Schema schema = sf.newSchema(new File("customer.xsd"));

        Validator validator = schema.newValidator();
        validator.setErrorHandler(new MyErrorHandler());
        validator.validate(source);
    }

}
 
@XmlRootElement
class Customer {
 
    private String name;
 
    private List<PhoneNumber> phoneNumbers;
 
    public Customer() {
        phoneNumbers = new ArrayList<PhoneNumber>();
    }
 
    public String getName() {
        return name;
    }
 
    public void setName(String name) {
        this.name = name;
    }
 
    @XmlElement(name="phone-number")
    public List<PhoneNumber> getPhoneNumbers() {
        return phoneNumbers;
    }
 
    public void setPhoneNumbers(List<PhoneNumber> phoneNumbers) {
        this.phoneNumbers = phoneNumbers;
    }
 
}
class PhoneNumber {
 
}
class MyErrorHandler implements ErrorHandler {
 
    public void warning(SAXParseException exception) throws SAXException {
        exception.printStackTrace();
    }
 
    public void error(SAXParseException exception) throws SAXException {
        exception.printStackTrace();
    }
 
    public void fatalError(SAXParseException exception) throws SAXException {
        exception.printStackTrace();
    }
 
}