基于XML解析的标准IEEE14节点电网PQ潮流Java程序

import java.io.*; import java.util.*; import java.text.DecimalFormat; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.OutputStream; import java.io.Writer; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Random; import java.util.*; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.OutputKeys; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Templates; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.sax.SAXResult; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.CDATASection; import org.w3c.dom.CharacterData; import org.w3c.dom.Comment; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.EntityReference; import org.w3c.dom.Node; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.NodeList; import org.w3c.dom.ProcessingInstruction; import org.w3c.dom.Text; import org.xml.sax.ContentHandler; import org.xml.sax.SAXException; import org.xml.sax.SAXParseException; class DOMPrinter { private static String NODE_TYPES[] = new String[] { " ", "ELEMENT", "ATTRIBUTE", "TEXT", "CDATA_SECTION", "ENTITY_REFERENCE", "ENTITY", "PROCESSING_INSTRUCTION", "COMMENT", "DOCUMENT", "DOCUMENT_TYPE", "DOCUMENT_FRAGMENT", "NOTATION" }; public static void println(String s,int indent) { for(int i = 0;i< indent;i++) { System.out.print(" "); } System.out.println(s); } public static void println(String s) { println(s,0); } public static void print(Node node) { printImpl(node,0); } private static void printImpl(Node node, int indent) { if(node == null) { return; } String nodeType = NODE_TYPES[node.getNodeType()]; String nodeName = node.getNodeName(); String nodeValue = node.getNodeValue(); if(nodeValue != null) { nodeValue = nodeValue.trim(); } if(nodeType.equals("TEXT")&&nodeValue.equals(" ")) { ; } else { println(nodeType+"-"+nodeName+"-"+nodeValue,indent); } NamedNodeMap attributes = node.getAttributes(); System.out.println("tag 1"); if(attributes != null) { for(int i =0;i<attributes.getLength();i++) { printImpl(attributes.item(i),indent+1); } } NodeList children = node.getChildNodes(); System.out.println("tag 2"); if(children != null) { for(int i =0;i<children.getLength();i++) { printImpl(children.item(i),indent+1); } } } public static DocumentBuilder newBuilder(boolean validation)throws ParserConfigurationException { DocumentBuilderFactory domFactory =DocumentBuilderFactory.newInstance(); domFactory.setValidating(validation); domFactory.setNamespaceAware(true); DocumentBuilder domBuilder=domFactory.newDocumentBuilder(); //domBuilder.setErrorHandler(new PrintErrorHandler()); return domBuilder; } public static Document newDocument()throws ParserConfigurationException { DocumentBuilder domBuilder = newBuilder(false); Document document = domBuilder.newDocument(); return document; } public static Document parse(String path,boolean validation)throws ParserConfigurationException,IOException,SAXException { DocumentBuilder domBuilder = newBuilder(validation); Document document = domBuilder.parse(new File(path)); return document; } } class DataUtils //收集字符数据 { public static String[] getData(Node node) { Vector vector = new Vector(); StringBuffer buf = new StringBuffer(); getDataImpl(node,buf,vector); if(buf.length()>0) { vector.add(buf.toString()); } String array[] = new String[vector.size()]; for(int i = 0;i < array.length;i++) { array[i] = (String) vector.get(i); } if(array.length == 0) { array = new String[] { " " }; } return array; } public static void getDataImpl(Node node,StringBuffer buf,Vector vector) { if(node instanceof Text||node instanceof CDATASection) { buf.append(((CharacterData)node).getData()); return; } Node child = node.getFirstChild(); while(child!=null) { if(child instanceof Text||child instanceof CDATASection) { buf.append(((CharacterData)node).getData()); } else if(child instanceof EntityReference) { getDataImpl(child,buf,vector); } else if(!(child instanceof Comment)) { if(buf.length() > 0) { vector.add(buf.toString()); buf.setLength(0); } } child = child.getNextSibling(); } } } class ElementUtils { public static Element[] findElements(Element root,String tagName,String data[],String attrNames[],String attrValues[]) { return findElementsImpl(root,null,tagName,data,attrNames,attrValues); } public static Element[] findElements(Element root,String namespaceURI,String localName,String data[],String attrNames[],String attrValues[]) { return findElementsImpl(root,namespaceURI,localName,data,attrNames,attrValues); } public static Element[] findElementsImpl(Element root,String namespaceURI,String name,String data[],String attrNames[],String attrValues[]) { Vector vector = new Vector(); findElementsImpl(root,namespaceURI,name,data,attrNames,attrValues,vector); Element array[] = new Element[vector.size()]; for(int i = 0;i < array.length;i++) { array[i] = (Element) vector.get(i); } return array; } private static void findElementsImpl(Element root,String namespaceURI,String name,String data[],String attrNames[],String attrValues[],Vector vector) { boolean flag = false; if(name == null||(namespaceURI == null&&name.equals(root.getTagName()))||(namespaceURI!=null&&namespaceURI.equals(root.getNamespaceURI())&&name.equals(root.getLocalName()))) { flag = true; if(data!=null) { String rootdata[] = DataUtils.getData(root); for(int i = 0;i < data.length;i++) { flag = false; for(int j = 0;j < rootdata.length;j++) { if(rootdata[j].indexOf(data[i])!=-1) { flag = true; break; } } if(flag == false){ break; } } } if(flag&&attrNames!=null&&attrValues!=null) { for(int i = 0;i < attrNames.length;i++) { String value = root.getAttribute(attrNames[i]); if(value == null||!value.equals(attrValues[i])) { flag = false; break; } } } } if(flag) { vector.add(root); } Node child = root.getFirstChild(); while(child!=null) { if(child instanceof Element) { findElementsImpl((Element)child,namespaceURI,name,data,attrNames,attrValues,vector); } child = child.getNextSibling(); } } } public class Begin extends DOMPrinter { public static void myBegin()// { int a; System.out.println(); System.out.println("请选择:2-查看数据;3-运行计算;4-查看结果;5-退出程序;"); a=G.scanner.nextInt(); if (a==2) { View.myView(); } else if (a==3) { Run.myRun(); } else if(a==4) { A4.myA4(); } else { System.out.println(); System.out.println("程序已退出，如要继续计算潮流，请重新运行程序"); System.out.println(); System.exit(1); } } public static void main(String[] args) { System.out.println(); System.out.println(); System.out.println(); System.out.println(" 基于CIM的PQ分解法电力系统潮流计算"); System.out.println(); System.out.println(" 指导老师： 设计： 2009年6月"); System.out.print