qlsh.java~55~

本程序用JAVA编制

import java.util.*;
import java.io.*;
import java.sql.Timestamp;
import org.w3c.dom.*;


  public class Qlsh {

    private static final String source =
        "http://stock.sina.com.cn/cgi-bin/stock/quote/quote.cgi?symbol=600002&country=sh&option=1";
    private static final String xslFile = "new-xml/600002.xsl";
    private static final String xmlFile = "new-xml/600002-result.xml";

    public Qlsh(){
    //public static void main(String args[]) {
      try {
        // Retrieve the source document as XML
        Document xhtml = StockHelper.tidyHTML(source);
        // Parse the XSL document
        Document xsl   = StockHelper.parseXMLFromFile(xslFile);
        // Get the current data by applying the XSL transform
        Document data  = StockHelper.transformXML(xhtml, xsl);
        // For convenience, add a timestamp to what we have done
        //Document resultxml = StockHelper.parseXMLFromFile(xmlFile);

        Date now = new Date();
        Timestamp time = new Timestamp(now.getTime());
        Element root = data.getDocumentElement();
        NodeList nl = root.getElementsByTagName("stock");
        Element stock = (Element)nl.item(0);

        for(int i=0;i<stock.getChildNodes().getLength();i++){
          String value=stock.getChildNodes().item(i).getChildNodes().item(0).getNodeValue();
          stock.getChildNodes().item(i).getChildNodes().item(0).setNodeValue(value.trim());

        }
        String newtime=stock.getChildNodes().item(0).getChildNodes().item(0).getNodeValue();
        //System.out.println("new time="+newtime);

        //Write the output file, merging if necessary
        File dataFile  = new File(xmlFile);
        if (dataFile.exists()) {
           //If we have extracted before, merge the data and write the file
          Document oldData = StockHelper.parseXMLFromFile(dataFile);
          Element oldroot = oldData.getDocumentElement();
          NodeList oldnl = oldroot.getElementsByTagName("stock");
          Element oldstock = (Element)oldnl.item(0);


          //String firsttime=oldstock.getElementsByTagName("time").item(0).getChildNodes().item(0).getNodeValue();
          //System.out.println("first time="+firsttime);

          int len=oldroot.getChildNodes().getLength();
          String lasttime=oldroot.getChildNodes().item(len-2).getChildNodes().item(1).getChildNodes().item(0).getNodeValue();
          //System.out.println("last time="+lasttime);

          if(newtime.equals(lasttime)){
            System.out.println("qlsh----none");
          }
          else{
            StockHelper.mergeXML(oldData.getDocumentElement(), stock, false);
            StockHelper.outputXMLToFile(oldData, xmlFile);
            System.out.println("qlsh ---- ok");
          }

          //System.out.print(stock.getChildNodes().item(0).getChildNodes().item(0).getNodeValue());
        } else {
          // If this is our first extraction, just write the file
          StockHelper.outputXMLToFile(data, xmlFile);
        }

      } catch (XMLHelperException xmlhe) {
        System.err.println(
            "There was an error in the extraction process:\n" + xmlhe.getMessage());
      }
    }
}