對xml的處理_Dom4j入門五

以下介紹Dom4j的環境是：windowsXP、eclipse3.5.0、jdk1.6、Dom4j1.6.1.jar

Dom4j1.6.1.jar架包可以在本人的資源中下載，歡迎下載使用

xml的合併問題，確保xml的結構相同

 //合併2個xml
 public static void getMergerXml(String folderxmlpath,String xmlresultpath){
  
           createDoucument_01(xmlresultpath);//創建合併後的xml
           SAXReader readerxml=new SAXReader(); 
           File[] file = new File(folderxmlpath).listFiles();//獲取所有的xml文件
  
           try {
                     Document docresult=readerxml.read(new File(xmlresultpath));//將合併後的xml文件轉成document對象
                     Element elementresult=docresult.getRootElement();//獲取document對象的根節點
                     for(int i = 0;i<file.length;i++){
                              Document docfile = readerxml.read(file[i]);//將要合併的xml對象包裝成一個document對象
                              Element elementfile=docfile.getRootElement();//獲取要合併的document對象的跟節點
                             elementresult.add(elementfile);//給合併後的xml對象中添加要合併的對象
                      }
                      WriteInFiler(docresult,xmlresultpath);//將合併後的document對象寫入xml中
            } catch (DocumentException e) {
                      e.printStackTrace();
            }
 }

 //將folderxmlpath文件夾下的所有xml合併
 public static void getMergerAllXml(String folderxmlpath,String xmlresultpath){
          SAXReader readerxml=new SAXReader();
          createDoucument_01(xmlresultpath);//創建合併後的xml
          List xmlpath = recursion_Directory(new File(folderxmlpath),new ArrayList());//獲取該目錄下所有的xml文件絕對路徑
  
          try {
                    Document docresult=readerxml.read(new File(xmlresultpath));//將合併後的xml文件轉成document對象
                    Element elementresult=docresult.getRootElement();//獲取document對象的根節點
                    for(int i = 0;i<xmlpath.size();i++){
                             Document docfile = readerxml.read(new File(xmlpath.get(i).toString()));//將要合併的xml對象包裝成一個document對象
                             Element elementfile=docfile.getRootElement();//獲取要合併的document對象的跟節點
                             elementresult.add(elementfile);//給合併後的xml對象中添加要合併的對象
                     }
                    WriteInFiler(docresult,xmlresultpath);//將合併後的document對象寫入xml中
          } catch (DocumentException e) {
                   e.printStackTrace();
          } 
 }
 //將document對象內容寫入文件doc.xml文件中
 public static void WriteInFiler(Document doc,String xmlpath){
           try{
                   OutputFormat opt=OutputFormat.createPrettyPrint();
                   opt.setEncoding("GB2312");
                   XMLWriter w=new XMLWriter(new FileWriter(new File(xmlpath)),opt);
                   w.write(doc);
                   w.close();
            }catch(Exception e){
                  e.printStackTrace();
           }
 }
 
 //創建合併後的xml文件
 public static void createDoucument_01(String xmlpath){
            //創建xml文檔，並設置文檔根元素
            Document document =DocumentHelper.createDocument();
            Element element1 = DocumentHelper.createElement("root");
            document.setRootElement(element1);//快捷鍵：ctrl+shift+o  
            //輸出到指定文件，設置其字符編碼和輸出格式
            OutputFormat format=new OutputFormat(" ",true);
             format.setEncoding("GBK");//設置xml的字符編碼格式
             try{
                     XMLWriter xml3=new XMLWriter(new FileOutputStream(xmlpath),format);
                     xml3.write(document);
                     xml3.close();
             }catch(IOException se){
                    se.printStackTrace();
             } 
 }
 //遞歸獲取file下的所有xml文件絕對路徑
 public static List recursion_Directory(File file,List fileList){
         File[] files=file.listFiles();
          if(files!=null&&files.length>0){
                  for(File filechild : files){
                               if(filechild.isDirectory()){//如果是文件夾
                                          recursion_Directory(filechild,fileList);//遞歸查詢
                               }else{
                                          String filepath = filechild.getPath();
                                          String suffix = filepath.substring(filepath.lastIndexOf(".")); 
                                          if(suffix.equals(".xml")){
                                                     fileList.add(filepath);
                                           }
                                 }
                      }
           }
           return fileList;
 }