信息
          
      
       销方
      
     

         
      
       信息
          
      
       销方
      
     

多个上边的xml合并为下边的xml：

     
      
           
        
         信息
            
        
         销方
        
       
           
        
         信息
            
        
         销方
        
       
      
     

实现如下：

import org.dom4j.Document; import org.dom4j.Element; import org.dom4j.io.SAXReader; import java.io.File; import java.io.FileFilter; import java.util.List; import java.util.regex.Pattern; /**  * @author Cyhui.  */ public class aaa {
      public static void main(String[] args) throws Exception {
          SAXReader saxReader = new SAXReader();         String tube = "F:\\xmll\\root.xml";         Document rootDoc = saxReader.read(new File(tube));         Element parent = rootDoc.getRootElement();         Element flows = parent.element("bb");         File file = new File("F:\\xmll");         if (file.exists()) {
              File[] files = file.listFiles(new FileFilter() {
                  public boolean accept(File pathname) {
                      String fileName = pathname.getName();                     String pattern = "^ff.*.xml$";                     boolean matches = Pattern.matches(pattern, fileName);                     return matches;                 }             });             for (File f : files) {
                  Document read = saxReader.read(f);                 List
    
      elements = read.getDocument().getRootElement().elements();                 for (Element emt : elements) {
                      flows.add(emt.detach());                 }             }         }         System.out.println(rootDoc.asXML());     } }