import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.HashSet;
import java.util.Set;
import javax.xml.parsers.ParserConfigurationException;
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;
import com.incesoft.xmas.commons.StringUtils;
public class MyXml extends DefaultHandler {
java.util.Stack tags = new java.util.Stack();
static Set<String> set = new HashSet<String>();
StringBuffer str = new StringBuffer();
public MyXml() {
super();
}
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
String tag = (String) tags.peek();
if (tag.equals("category")) {
str.append(new String(ch, start, length));
}
}
@Override
public void startElement(String uri, String localName, String name, Attributes attributes)
throws SAXException {
tags.push(name);
}
@Override
public void endElement(String uri, String localName, String name) throws SAXException {
if (name.equals("category")) {
String strs = str.toString().trim();
if (StringUtils.isNotBlank(strs)) {
if (set.add(str.toString().trim())) {
writeTxtFile("D:\\1.txt", str.toString().trim());
System.out.println("|" + str.toString().trim() + "|");
}
}
str.setLength(0);
}
}
public static void main(String[] args) {
File file = new File("D:\\1.txt");
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
try {
SAXParserFactory sf = SAXParserFactory.newInstance();
SAXParser sp = sf.newSAXParser();
MyXml reader = new MyXml();
sp.parse(new InputSource("D://00.xml"), reader);
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void writeTxtFile(String filename, String info) {
// 先读取原有文件内容，然后进行写入操作
String message = info + "\r\n";
BufferedWriter fw = null;
try {
// fw = new FileWriter(fileName);
OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(filename, true), "GBK");
// out.append(message);
fw = new BufferedWriter(out);
fw.append(message);
fw.flush();
// fw.append(message);
// fw.flush();
} catch (IOException e1) {
e1.printStackTrace();
} finally {
if (fw != null) {
try {
fw.close();
} catch (IOException e2) {
e2.printStackTrace();
}
}
}
}
}