public boolean read(String strRoute, String strElement, int flag) { //SAXBuilder builder=new SAXBuilder(); strText = null; try { String[] route = new String[4]; String str = null; Document doc = builder.build(xmlFileName); Element root = doc.getRootElement(); Element element = root; //创建一个拆分字符串内容的对象,每次返回一项 StringTokenizer st = new StringTokenizer(strRoute, ":"); str = st.nextToken(); while (st.hasMoreTokens()) { str = st.nextToken(); element = element.getChild(str); } //mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,str); element = (Element) element.getParent(); /* * while(flag!=1) { if(element.removeChild(str)) * mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,"deleted "+str); * else mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,"not * deleted"); * * flag--; } */ // mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,element.getName()); strText = element.getChild(str).getChild(strElement).getText(); } catch (JDOMException jdome) { mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, xmlFileName + " is not well-formed"); } catch (IOException ioe) { mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, ioe); } catch (NullPointerException nullpe) { mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, "not founded" + "\n" + nullpe); } catch (Exception e) { mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, "read no succeed" + "\n" + e); } if (strText == null) { mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, "not founded"); return false; } else { // mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,"strText="+strText); return true; } }
/** * Indicates the end of an element (<code></[element name]></code>) is reached. Note that * the parser does not distinguish between empty elements and non-empty elements, so this will * occur uniformly. * * @param namespaceURI <code>String</code> URI of namespace this element is associated with * @param localName <code>String</code> name of element without prefix * @param qName <code>String</code> name of element in XML 1.0 form * @throws SAXException when things go wrong */ public void endElement(String namespaceURI, String localName, String qName) throws SAXException { if (suppress) return; flushCharacters(); if (!atRoot) { Parent p = currentElement.getParent(); if (p instanceof Document) { atRoot = true; } else { currentElement = (Element) p; } } else { throw new SAXException("Ill-formed XML document (missing opening tag for " + localName + ")"); } }
/** * 新增循环节点 * @param cycNode 循环节点 * @return */ public Element addCycNode(Element cycNode) { Element node=cycNode; Element child=null; Element newNode=null; Element tmpNode=null; String sName=""; if(cycNode==null) return newNode; newNode=new Element(node.getName()); node.getParent().addContent(newNode); List cList=node.getChildren(); for(int i=0;i<cList.size();i++) { child=(Element)cList.get(i); sName=child.getName(); sName=sName.trim(); tmpNode=new Element(sName); newNode.addContent(tmpNode); } return newNode; }
//改写XML文件的某一元素的值 //strRoute为XML文件从根元素开始到该元素的父元素的路径 //strElement为需要读取的元素 //flag为当XML含有多个同名元素时,需要改写元素所处的序号 public void write(String strRoute, String strElement, String strSet, int flag) { //SAXBuilder builder=new SAXBuilder(); try { String str = null; Document doc = builder.build(xmlFileName); Element root = doc.getRootElement(); Element element = root; StringTokenizer st = new StringTokenizer(strRoute, ":"); str = st.nextToken(); while (st.hasMoreTokens()) { str = st.nextToken(); //mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,str); element = element.getChild(str); } // mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,"test :"+str); element = (Element) element.getParent(); //若需要改写的不是XML文件的第一个同名元素,则获取该元素 //方法为:将之前的元素依次移到后面,需要改写的元素前移至第一个 /* * if(flag>1) { int j=flag; while(j!=1) { * * Element tmp=element.getChild(str); * element.addContent(tmp.detach()); j--; } } */ element = element.getChild(str).getChild(strElement); // mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP,"gettxt // "+element.getText()); element.setText(strSet); //若需要改写的不是XML文件的第一个同名元素 //上面改变了次序,需要在成功改写后恢复原有次序 /* * if(flag!=1) { * * java.util.List children=element.getChildren(); Iterator * iterator=children.iterator(); int count=0; * while(iterator.hasNext()) { Element * child=(Element)iterator.next(); count++; } * * System.out.println("count"+count); * * k=(count+1-flag)%count; * * while(k!=0) { Element tmp=element.getChild(str); * element.addContent(tmp.detach()); k--; } } * */ XMLOutputter outputter = new XMLOutputter("", false, "GB2312"); PrintWriter out = new PrintWriter(new BufferedWriter( new FileWriter(xmlFileName))); Document myDocument = root.getDocument(); outputter.output(myDocument, out); out.close(); } catch (JDOMException jdome) { jdome.printStackTrace(); // mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, xmlFileName // + " is not well-formed\n"); } catch (IOException ioe) { ioe.printStackTrace(); // mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, ioe); } catch (Exception e) { e.printStackTrace(); // mypage.FcfeMain.wR(mypage.FcfeMain.SIM_APP_ERP, // "write not succeed\n"); } }