Java解析xml配置文件合成器

这里是我自己写的一个简单的文件合成器，把n多文件路径配置在xml中，Java解析后读出来写到第一个文件中去。

xml配置文件如下：

 

path.xml

<?xml version="1.0" encoding="gbk"?>
<files>
 <file path="d:\\123.txt"></file>
 <file path="d:\\124.txt"></file>
 <file path="d:\\125.txt"></file>
</files>

 

解析的Java代码如下：

 ReadAll.java

package javaIOTest;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;

import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

public class ReadAll {

 private ReadAll(String xmlFile) {
  dispose(xmlFile);
 }

 public HashMap<String, String> iterateWholeXML(String filename) {
  SAXReader saxReader = new SAXReader();
  HashMap<String, String> hm = new HashMap<String, String>();
  try {
   Document document = saxReader.read(new File(filename));
   Element root = document.getRootElement();
   int num = -1;
   System.out.println("开始解析......");
   for (Iterator iter = root.elementIterator(); iter.hasNext();) {
    Element element = (Element) iter.next();
    num++;
    Attribute pathAttr = element.attribute("path");
    if (pathAttr != null) {
     String path = pathAttr.getValue();
     if (path != null && !path.equals("")) {
      hm.put(pathAttr.getName() + num, path);
     } else {
      hm.put(pathAttr.getName() + num, "\\123");
     }
    }
   }
 
   return hm;
  } catch (DocumentException e) {
   e.printStackTrace();
  }
  return hm;
 }

 private void dispose(String xmlFile) {
  readFile(iterateWholeXML(xmlFile));
 }

 public void readFile(HashMap<String, String> fileMap) {
  FileReader fr = null;
  FileWriter fw = null;
  BufferedWriter bw = null;
  BufferedReader br = null;
  String str=null;
  try {
      
            File file0 = null;
            StringBuffer sb = new StringBuffer();
            System.out.println("开始读取......");
   for (String ss : fileMap.keySet()) {
    
    System.out.println("正在合并......"); 
    System.out.println(ss + ":" + fileMap.get(ss));   
   if("path0".equals(ss)){
    file0 = new File(fileMap.get(ss));
    continue;
   }
           
            File file = new File(fileMap.get(ss));
   fr = new FileReader(file);
   br = new BufferedReader(fr);
   do{
      str = br.readLine();
   sb.append(str);
   sb.append("\n");
   }while(br.readLine()==null);
   sb.append("\n");
   }
   fw = new FileWriter(file0, true);
   bw = new BufferedWriter(fw);
   bw.write(sb.toString());
   bw.flush();
   
   
   System.out.println("合并结束......");

  } catch (Exception e) {
   e.printStackTrace();
  } finally {
   try {
    fr.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
   try {
    fw.close();
   } catch (IOException e) {
    e.printStackTrace();
   }

  }
 }

 public static void main(String[] args) {
  new ReadAll("d:\\path.xml");
 }

}

 

 

在执行的时候确保你的配置文件的路径和main方法中的路径一致。