java文件操作

package com.mis.inter.datainter.ereq;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.PrintWriter;

public class CopyFile { 
   public CopyFile() { 
   } 

   /** 
     * 新建目录 
     * @param folderPath String 如 c:/fqf 
     * @return boolean 
     */ 
   public void newFolder(String folderPath) { 
       try { 
           String filePath = folderPath; 
           filePath = filePath.toString(); 
           java.io.File myFilePath = new java.io.File(filePath); 
           if (!myFilePath.exists()) { 
               myFilePath.mkdir(); 
           } 
       } 
       catch (Exception e) { 
           System.out.println("新建目录操作出错"); 
           e.printStackTrace(); 
       } 
   } 

   /** 
     * 新建文件 
     * @param filePathAndName String 文件路径及名称 如c:/fqf.txt 
     * @param fileContent String 文件内容 
     * @return boolean 
     */ 
   public void newFile(String filePathAndName, String fileContent) { 

       try { 
           String filePath = filePathAndName; 
           filePath = filePath.toString(); 
           File myFilePath = new File(filePath); 
           if (!myFilePath.exists()) { 
               myFilePath.createNewFile(); 
           } 
           FileWriter resultFile = new FileWriter(myFilePath); 
           PrintWriter myFile = new PrintWriter(resultFile); 
           String strContent = fileContent; 
           myFile.println(strContent); 
           resultFile.close(); 

       } 
       catch (Exception e) { 
           System.out.println("新建文件操作出错"); 
           e.printStackTrace(); 

       } 

   } 

   /** 
     * 删除文件 
     * @param filePathAndName String 文件路径及名称 如c:/fqf.txt 
     * @param fileContent String 
     * @return boolean 
     */ 
   public void delFile(String filePathAndName) { 
       try { 
           String filePath = filePathAndName; 
           filePath = filePath.toString(); 
           java.io.File myDelFile = new java.io.File(filePath); 
           myDelFile.delete(); 

       } 
       catch (Exception e) { 
           System.out.println("删除文件操作出错"); 
           e.printStackTrace(); 

       } 

   } 

   /** 
     * 删除文件夹 
     * @param filePathAndName String 文件夹路径及名称 如c:/fqf 
     * @param fileContent String 
     * @return boolean 
     */ 
   public void delFolder(String folderPath) { 
       try { 
           delAllFile(folderPath); //删除完里面所有内容 
           String filePath = folderPath; 
           filePath = filePath.toString(); 
           java.io.File myFilePath = new java.io.File(filePath); 
           myFilePath.delete(); //删除空文件夹 

       } 
       catch (Exception e) { 
           System.out.println("删除文件夹操作出错"); 
           e.printStackTrace(); 

       } 

   } 

   /** 
     * 删除文件夹里面的所有文件 
     * @param path String 文件夹路径 如 c:/fqf 
     */ 
   public void delAllFile(String path) { 
       File file = new File(path); 
       if (!file.exists()) { 
           return; 
       } 
       if (!file.isDirectory()) { 
           return; 
       } 
       String[] tempList = file.list(); 
       File temp = null; 
       for (int i = 0; i < tempList.length; i++) { 
           if (path.endsWith(File.separator)) { 
               temp = new File(path + tempList[i]); 
           } 
           else { 
               temp = new File(path + File.separator + tempList[i]); 
           } 
           if (temp.isFile()) { 
               temp.delete(); 
           } 
           if (temp.isDirectory()) { 
               delAllFile(path+"/"+ tempList[i]);//先删除文件夹里面的文件 
               delFolder(path+"/"+ tempList[i]);//再删除空文件夹 
           } 
       } 
   } 

   /** 
     * 复制单个文件 
     * @param oldPath String 原文件路径 如：c:/fqf.txt 
     * @param newPath String 复制后路径 如：f:/fqf.txt 
     * @return boolean 
     */ 
   public void copyFile(String oldPath, String newPath) { 
       try { 
           int bytesum = 0; 
           int byteread = 0; 
           File oldfile = new File(oldPath); 
           if (oldfile.exists()) { //文件存在时 
               InputStream inStream = new FileInputStream(oldPath); //读入原文件 
               FileOutputStream fs = new FileOutputStream(newPath); 
               byte[] buffer = new byte[1444]; 
               int length; 
               while ( (byteread = inStream.read(buffer)) != -1) { 
                   bytesum += byteread; //字节数 文件大小 
           
                   fs.write(buffer, 0, byteread); 
               } 
               inStream.close(); 
           } 
       } 
       catch (Exception e) { 
           System.out.println("复制单个文件操作出错"); 
           e.printStackTrace(); 

       } 

   } 

   /** 
     * 复制整个文件夹内容 
     * @param oldPath String 原文件路径 如：c:/fqf 
     * @param newPath String 复制后路径 如：f:/fqf/ff 
     * @return boolean 
     */ 
   public void copyFolder(String oldPath, String newPath) { 

       try { 
           (new File(newPath)).mkdirs(); //如果文件夹不存在 则建立新文件夹 
           File a=new File(oldPath); 
           String[] file=a.list(); 
           File temp=null; 
           for (int i = 0; i < file.length; i++) { 
               if(oldPath.endsWith(File.separator)){ 
                   temp=new File(oldPath+file[i]); 
               } 
               else{ 
                   temp=new File(oldPath+File.separator+file[i]); 
               } 

               if(temp.isFile()){ 
                   FileInputStream input = new FileInputStream(temp); 
                   FileOutputStream output = new FileOutputStream(newPath + "/" + 
                           (temp.getName()).toString()); 
                   byte[] b = new byte[1024 * 5]; 
                   int len; 
                   while ( (len = input.read(b)) != -1) { 
                       output.write(b, 0, len); 
                   } 
                   output.flush(); 
                   output.close(); 
                   input.close(); 
               } 
               if(temp.isDirectory()){//如果是子文件夹 
                   copyFolder(oldPath+"/"+file[i],newPath+"/"+file[i]); 
               } 
           } 
       } 
       catch (Exception e) { 
           System.out.println("复制整个文件夹内容操作出错"); 
           e.printStackTrace(); 

       } 

   } 

   /** 
     * 移动文件到指定目录 
     * @param oldPath String 如：c:/fqf.txt 
     * @param newPath String 如：d:/fqf.txt 
     */ 
   public void moveFile(String oldPath, String newPath) { 
       copyFile(oldPath, newPath); 
       delFile(oldPath); 

   } 

   /** 
     * 移动文件到指定目录 
     * @param oldPath String 如：c:/fqf.txt 
     * @param newPath String 如：d:/fqf.txt 
     */ 
   public void moveFolder(String oldPath, String newPath) { 
       copyFolder(oldPath, newPath); 
       delFolder(oldPath); 

   } 
  
// 拷贝文件
   private void copyFile2(String source, String dest) {
   try {
   File in = new File(source);
   File out = new File(dest);
   FileInputStream inFile = new FileInputStream(in);
   FileOutputStream outFile = new FileOutputStream(out);
   byte[] buffer = new byte[1024];
   int i = 0;
   while ((i = inFile.read(buffer)) != -1) {
   outFile.write(buffer, 0, i);
   }//end while
   inFile.close();
   outFile.close();
   }//end try
   catch (Exception e) {

   }//end catch
   }//end copyFile
   public static void main(String[] args) {
	    CopyFile file = new CopyFile();
//	    file.newFolder("newFolder22222");
	    file.copyFile("d:\\test.xls","d:\\cd\\te.xls");
	   }
}