lookxml.java

本程序用JAVA编制

package curve;
import java.util.*;
import java.io.*;
import org.xml.sax.*;  // InputSource
import org.w3c.dom.*;
import org.apache.xerces.parsers.DOMParser;

public class LookXml {
  public LookXml(){}
  public Vector LookXml(String xmlFile,int n){
    //String xmlFile = "new-xml/test.xml";
    File dataFile  = new File(xmlFile);
    Vector xmlVector=new Vector();
    try {
      if (dataFile.exists()) {
        InputSource is = new InputSource(new FileInputStream(dataFile));
        DOMParser dom=new DOMParser();
        dom.parse(is);

        Document oldData = dom.getDocument();
        //Document oldData = StockHelper.parseXMLFromFile(dataFile);
        Element oldroot = oldData.getDocumentElement();
        NodeList oldnl=oldroot.getChildNodes();

        int lay1_len=oldnl.getLength();
        int lay2_len=oldnl.item(1).getChildNodes().getLength();

        for(int i=0;i<lay1_len;i++){
          int m=i%2;
          if(m==1){
            //System.out.println(oldroot.getChildNodes().item(i));
            int j=2*n-1;
            //System.out.println(oldroot.getChildNodes().item(i).getChildNodes().
             //                  item(j).getChildNodes().item(0).getNodeValue());
            String param=oldroot.getChildNodes().item(i).getChildNodes().item(j).getChildNodes().item(0).getNodeValue();
            xmlVector.addElement(Float.valueOf(param));
          }
        }
        } else { System.out.println("file not exists!");  }
    }catch (Exception io) {
      System.err.println(io.getMessage());
    }
    return xmlVector;
  }

 /*public static void main(String args[]) throws IOException {
    LookXml look=new LookXml();
    System.out.println(look.LookXml("new-xml/test.xml",7));
  }*/
}