java使用demo4j实现对指定目录下的XML文件指定标签下的内容进行编辑

• xml文件内容
  <bulkPmMrDataFile> <fileHeader fileFormatVersion="V2.0.6" reportTime="2020-10-21T00:15:00.000" startTime="2020-10-21T00:00:00.000" endTime="2020-10-21T00:15:00.000" period="15" jobid="0"/> <eNB id="37227"> <measurement><smr>MR.LteScRSRP MR.LteScRSRQ MR.LteScEarfcn MR.LteScPci MR.LteScCgi MR.LteNcRSRP MR.LteNcRSRQ MR.LteNcEarfcn MR.LteNcPci MR.GsmNcellBcch MR.GsmNcellCarrierRSSI MR.GsmNcellNcc MR.GsmNcellBcc MR.UtraCpichRSCP MR.UtraCarrierRSSI MR.UtraCpichEcNo MR.UtraCellParameterId</smr> <object id="9530263" MmeUeS1apId="4294967295" MmeGroupId="39424" MmeCode="194" TimeStamp="2020-10-20T23:57:31.714" EventType="A3"> <v>-1712 14 500 427 460000037227151 48 13 500 426 NIL NIL NIL NIL NIL NIL NIL NIL </v> </object> <object id="9530253" MmeUeS1apId="4294967295" MmeGroupId="39424" MmeCode="194" TimeStamp="2020-10-20T23:57:32.320" EventType="A3"> <v>-1443 12 500 426 460000037227141 44 12 500 427 NIL NIL NIL NIL NIL NIL NIL NIL </v> </object></measurement> </eNB> </bulkPmMrDataFile>

• 操作xml文件的方法
  public static void paXml(Listpsth){
  SAXReader reader = new SAXReader();
  for (String stri : psth) {
  try {
  Document document = reader.read(new File(stri));
  //获取要在那个地方添加子节点
  List measurement = document.selectNodes("//measurement");
  for (Element element : measurement) {
  Element e = DocumentHelper.createElement("smr");
  if(element.elements("smr").size() == 0){
  List list = element.content();
  e.setText("MR.LteScRSRP MR.LteScRSRQ MR.LteScEarfcn MR.LteScPci MR.LteScCgi "
  + "MR.LteNcRSRP MR.LteNcRSRQ MR.LteNcEarfcn "
  + "MR.LteNcPci MR.GsmNcellBcch MR.GsmNcellCarrierRSSI "
  + "MR.GsmNcellNcc MR.GsmNcellBcc MR.UtraCpichRSCP MR.UtraCarrierRSSI MR.UtraCpichEcNo MR.UtraCellParameterId");
  list.add(0, e); //在其子节点的开头添加新的节点
  }
  }
  List elements = document.selectNodes("//v");
  for (Element element : elements) {
  String vtest = element.getStringValue();
  String str = vtest.indexOf(" ")==-1?vtest:vtest.substring(0,vtest.indexOf(" "));
  vtest = vtest.replaceFirst(str,(Integer.parseInt(str)-135)+"");
  element.setText(vtest);
  System.err.println(vtest);
  }
  try {
  //美化xml
  OutputFormat format = OutputFormat.createPrettyPrint();
  XMLWriter output = new XMLWriter(new FileWriter(new File(stri))，format );
  output.write(document);
  output.close();
  } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  }

    	} catch (DocumentException e) {
    		// TODO Auto-generated catch block
    		e.printStackTrace();
    	}
    	
    }
  

  }

• 批量获取xml文件的方法
  /**

  • 遍历获取xml文件路径
  • @param file 起始文件夹位置
  • @param path 存放xml文件的集合
  • @return path xml文件路径的集合
    */
    public static List fileList(File file,List path) {
    if(file.exists()){
    if (file.isFile() ) {
    if(file.getAbsolutePath().endsWith(".xml")){
    path.add(file.getAbsolutePath());
    }
    }else{
    File[] list = file.listFiles();
    if (list.length == 0) {
    System.out.println(file.getAbsolutePath() + "为空");
    } else {
    for (int i = 0; i < list.length; i++) {
    path = fileList(list[i],path);
    }
    }
    }
    }else{
    System.out.println("文件不存在！");
    }
    return path;
    }