Java by API/javax.xml.parsers/SAXParserFactory
Содержание
SAXParserFactory: isNamespaceAware()
/*
Parser will be namespace aware
Parser will validate XML
Parser object is: com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl@21b6d
*/
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
public class MainClass {
public static void main(String args[]) {
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setNamespaceAware(true);
spf.setValidating(true);
System.out.println("Parser will " + (spf.isNamespaceAware() ? "" : "not ")
+ "be namespace aware");
System.out.println("Parser will " + (spf.isValidating() ? "" : "not ") + "validate XML");
SAXParser parser = null;
try {
parser = spf.newSAXParser();
} catch (ParserConfigurationException e) {
e.printStackTrace(System.err);
} catch (SAXException e) {
e.printStackTrace(System.err);
}
System.out.println("Parser object is: " + parser);
}
}
SAXParserFactory: isValidating()
/*
Parser will be namespace aware
Parser will validate XML
Parser object is: com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl@21b6d
*/
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
public class MainClass {
public static void main(String args[]) {
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setNamespaceAware(true);
spf.setValidating(true);
System.out.println("Parser will " + (spf.isNamespaceAware() ? "" : "not ")
+ "be namespace aware");
System.out.println("Parser will " + (spf.isValidating() ? "" : "not ") + "validate XML");
SAXParser parser = null;
try {
parser = spf.newSAXParser();
} catch (ParserConfigurationException e) {
e.printStackTrace(System.err);
} catch (SAXException e) {
e.printStackTrace(System.err);
}
System.out.println("Parser object is: " + parser);
}
}
SAXParserFactory: newInstance()
import java.io.StringReader;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class MainClass {
public static void main(String args[]) {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler() {
boolean name = false;
public void startElement(String uri, String localName, String qName, Attributes attributes)
throws SAXException {
if (qName.equalsIgnoreCase("NAME")) {
name = true;
}
}
public void characters(char ch[], int start, int length) throws SAXException {
if (name) {
System.out.println("Name: " + new String(ch, start, length));
name = false;
}
}
};
saxParser.parse(new InputSource(new StringReader(xmlString)), handler);
} catch (Exception e) {
e.printStackTrace();
}
}
static String xmlString = "<PHONEBOOK>" +
" <PERSON>" +
" <NAME>Joe Wang</NAME>" +
" <EMAIL>joe@yourserver.ru</EMAIL>" +
" <TELEPHONE>202-999-9999</TELEPHONE>" +
" <WEB>www.jexp.ru</WEB>" +
" </PERSON>" +
" <PERSON> " +
"<NAME>Karol</NAME>" +
" <EMAIL>karol@yourserver.ru</EMAIL>" +
" <TELEPHONE>306-999-9999</TELEPHONE>" +
" <WEB>www.jexp.ru</WEB>" +
" </PERSON>" +
" <PERSON>" +
" <NAME>Green</NAME>" +
" <EMAIL>green@yourserver.ru</EMAIL>" +
" <TELEPHONE>202-414-9999</TELEPHONE>" +
" <WEB>www.jexp.ru</WEB>" +
" </PERSON>" +
" </PHONEBOOK>";
}
SAXParserFactory: setFeature(String name, boolean value)
/*
Parser object is: com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl@c9ba38
Start document:
Start element: local name: PHONEBOOK qname: PHONEBOOK uri:
Characters:
Start element: local name: PERSON qname: PERSON uri:
Characters:
Start element: local name: NAME qname: NAME uri:
Attributes:
Name : firstName
Type : CDATA
Value: Joe
Name : lastName
Type : CDATA
Value: Yin
Characters: Joe
Characters: Yin
End element: local name: NAME qname: NAME uri:
Characters:
Start element: local name: EMAIL qname: EMAIL uri:
Characters: joe@yourserver.ru
End element: local name: EMAIL qname: EMAIL uri:
Characters:
Start element: local name: TELEPHONE qname: TELEPHONE uri:
Characters: 202-999-9999
End element: local name: TELEPHONE qname: TELEPHONE uri:
Characters:
Start element: local name: WEB qname: WEB uri:
Characters: www.jexp.ru
End element: local name: WEB qname: WEB uri:
Characters:
End element: local name: PERSON qname: PERSON uri:
Characters:
End element: local name: PHONEBOOK qname: PHONEBOOK uri:
End document:
*/
import java.io.StringReader;
import javax.xml.XMLConstants;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.transform.sax.SAXSource;
import javax.xml.validation.SchemaFactory;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;
public class MainClass {
public static void main(String args[])throws Exception {
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser parser = null;
spf.setNamespaceAware(true);
spf.setValidating(true);
try {
spf.setFeature("http://xml.org/sax/features/namespace-prefixes",true);
parser = spf.newSAXParser();
System.out.println("Parser object is: "+ parser);
}
catch(Exception e) {
e.printStackTrace(System.err);
}
MySAXHandler handler = new MySAXHandler();
parser.parse(new InputSource(new StringReader(xmlString)), handler);
}
static String xmlString = "<?xml version=\"1.0\"?>" +
"<addresses:address xmlns:addresses=\"http://www.jexp.ru/AddressNamespace\">" +
"<addresses:buildingnumber> 2934 </addresses:buildingnumber>" +
"<addresses:street> South Street</addresses:street>" +
"<addresses:city>Vancouver</addresses:city>" +
"<addresses:state>BC</addresses:state>" +
"<addresses:zip>V5V 4X6</addresses:zip>" +
"</addresses:address>";
}
class MySAXHandler extends DefaultHandler {
public void startDocument() {
System.out.println("Start document: ");
}
public void endDocument() {
System.out.println("End document: ");
}
public void startElement(String uri, String localName, String qname,
Attributes attr)
{
System.out.println("Start element: local name: " + localName + " qname: "
+ qname + " uri: "+uri);
int attrCount = attr.getLength();
if(attrCount>0) {
System.out.println("Attributes:");
for(int i = 0 ; i<attrCount ; i++) {
System.out.println(" Name : " + attr.getQName(i));
System.out.println(" Type : " + attr.getType(i));
System.out.println(" Value: " + attr.getValue(i));
}
}
}
public void endElement(String uri, String localName, String qname) {
System.out.println("End element: local name: " + localName + " qname: "
+ qname + " uri: "+uri);
}
public void characters(char[] ch, int start, int length) {
System.out.println("Characters: " + new String(ch, start, length));
}
public void ignorableWhitespace(char[] ch, int start, int length) {
System.out.println("Ignorable whitespace: " + new String(ch, start, length));
}
public void startPrefixMapping(String prefix, String uri) {
System.out.println("Start \"" + prefix + "\" namespace scope. URI: " + uri);
}
public void endPrefixMapping(String prefix) {
System.out.println("End \"" + prefix + "\" namespace scope.");
}
public void warning(SAXParseException spe) {
System.out.println("Warning at line "+spe.getLineNumber());
System.out.println(spe.getMessage());
}
public void fatalError(SAXParseException spe) throws SAXException {
System.out.println("Fatal error at line "+spe.getLineNumber());
System.out.println(spe.getMessage());
throw spe;
}
}
SAXParserFactory: setNamespaceAware(boolean awareness)
/*
Parser will be namespace aware
Parser will validate XML
Parser object is: com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl@21b6d
*/
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
public class MainClass {
public static void main(String args[]) {
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setNamespaceAware(true);
spf.setValidating(true);
System.out.println("Parser will " + (spf.isNamespaceAware() ? "" : "not ")
+ "be namespace aware");
System.out.println("Parser will " + (spf.isValidating() ? "" : "not ") + "validate XML");
SAXParser parser = null;
try {
parser = spf.newSAXParser();
} catch (ParserConfigurationException e) {
e.printStackTrace(System.err);
} catch (SAXException e) {
e.printStackTrace(System.err);
}
System.out.println("Parser object is: " + parser);
}
}
SAXParserFactory: setValidating(boolean validating)
/*
Parser will be namespace aware
Parser will validate XML
Parser object is: com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl@21b6d
*/
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
public class MainClass {
public static void main(String args[]) {
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setNamespaceAware(true);
spf.setValidating(true);
System.out.println("Parser will " + (spf.isNamespaceAware() ? "" : "not ")
+ "be namespace aware");
System.out.println("Parser will " + (spf.isValidating() ? "" : "not ") + "validate XML");
SAXParser parser = null;
try {
parser = spf.newSAXParser();
} catch (ParserConfigurationException e) {
e.printStackTrace(System.err);
} catch (SAXException e) {
e.printStackTrace(System.err);
}
System.out.println("Parser object is: " + parser);
}
}
