package xml.dom4j.wkjava;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;import java.io.IOException;
import java.io.InputStream;import java.io.OutputStreamWriter;
import java.io.Writer;import java.util.Iterator;import java.util.List;import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class Test {
Document doc = null;
public Test() throws DocumentException, IOException, SAXException {
Document doc = loadXML("class.xml"); //载入XML文档
System.out.println(doc.asXML());
printDoc(doc); //打印XML文档
storeDoc(doc,"new.xml"); //把XML文档存入硬盘
doc = valideDoc("class.xml"); //校验dtd XML文档
printDoc(doc);
doc = validateDocBySxd("classSchema.xml"); //校验Schema文档printDoc(doc);
String url = getClass().getResource("/xml/dom4j/wkjava/class.xsd").toString();
doc = validateDocBySxd("classSchema.xml",url); //校验Schema文档(俩参数)
printDoc(doc);
doc = createDoc(); //创建Schema文档
storeDoc(doc,"root.xml");
doc = validateDocBySxd("classSchema.xml");
updateZip(doc,"102202"); //在文档中修改原属
printDoc(doc);
doc = validateDocBySxd("classSchema.xml");
printNames(doc); //打印文档中所有学生名字
System.out.println(getStudentCount(doc)); }
public static void main(String[] args) {
try {new Test(); }
catch (FileNotFoundException e) {
e.printStackTrace();
} catch (DocumentException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} }
public Document loadXML(String xmlfile)throws FileNotFoundException, DocumentException{
SAXReader reader = new SAXReader();
doc = reader.read(new FileInputStream(xmlfile));
return doc;
}
public void printDoc(Document doc) throws IOException { Writer out = new OutputStreamWriter(System.out,"gb2312"); OutputFormat format = OutputFormat.createPrettyPrint(); XMLWriter writer = new XMLWriter(out, format); writer.write(this.doc);
out.flush();
}
public void storeDoc(Document doc,String filename) throws IOException {
Writer out = new OutputStreamWriter(new FileOutputStream (filename),"utf-8");
OutputFormat format = OutputFormat.createPrettyPrint(); XMLWriter writer = new XMLWriter(out, format); writer.write(this.doc);
printDoc(doc);
out.close();
}
public Document valideDoc(String xmlfile) throws DocumentException, IOException{
EntityResolver resolver = new EntityResolver()
{
public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
if(publicId.equals("//class from weiking")){ InputStream in = new FileInputStream("class.dtd"); return new InputSource(in);
}
return null;
}};
SAXReader reader = new SAXReader(true); reader.setEntityResolver(resolver);
Document doc = reader.read(new FileInputStream(xmlfile)); return doc;
}
public Document validateDocBySxd(String xmlfile) throws SAXException, DocumentException, IOException{
SAXReader reader = new SAXReader(true);
reader.setFeature("http://apache.org/xml/features/validation/schema",true); Document doc = reader.read(new FileInputStream(xmlfile)); return doc;
}
public Document validateDocBySxd(String xmlfile,String SchemaUrl) throws SAXException, FileNotFoundException, DocumentException{
SAXReader reader = new SAXReader(true);
reader.setFeature("http://xml.org/sax/features/validation", true); reader.setFeature("http://apache.org/xml/features/validation/schema",true); reader.setFeature("http://apache.org/xml/features/validation/schema-full-checking",true);
reader.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation",SchemaUrl);
Document doc = reader.read(new FileInputStream(xmlfile)); return doc;
}
public Document createDoc() {
Document doc = DocumentHelper.createDocument();
Element root = doc.addElement( "root" );
Element author2 = root.addElement( "author" ) .addAttribute( "name", "Toby" ) .addAttribute( "location", "Germany" ) .addText( "Tobias Rademacher" );
Element author1 = root.addElement( "author" ).addAttribute( "name", "James" ).addAttribute( "location", "UK" ).addText( "James Strachan" );
return doc;
}
public void updateZip(Document doc,String zip){
String xpath = "/Class/Teacher/zip";
Element e = (Element)doc.selectSingleNode(xpath); e.setText(zip);
}
public void printNames(Document doc){
String xpath = "/Class/Students/Student/name";
List list = doc.selectNodes(xpath);
for(Iterator i = list.iterator();i.hasNext();)
{ Element e = (Element)i.next();
System.out.println(e.element("last").getText() + e.valueOf("first"));
}
}
public int getStudentCount(Document doc){
int count = 0;
String xpath ="count(/Class/Students/Student)";
count = doc.numberValueOf(xpath).intValue();// String value = doc.valueOf(xpath);//
count = Integer.parseInt(value);
return count;
}
}
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