/**
     * 讀取文本文件內(nèi)容
     * @param filePathAndName 帶有完整絕對路徑的文件名
     * @param encoding 文本文件打開的編碼方式
     * @return 返回文本文件的內(nèi)容
     */
    public String readTxt(String filePathAndName,String encoding) throws IOException{
     encoding = encoding.trim();
     StringBuffer str = new StringBuffer("");
     String st = "";
     try{
      FileInputStream fs = new FileInputStream(filePathAndName);
      InputStreamReader isr;
      if(encoding.equals("")){
       isr = new InputStreamReader(fs);
      }else{
       isr = new InputStreamReader(fs,encoding);
      }
      BufferedReader br = new BufferedReader(isr);
      try{
       String data = "";
       while((data = br.readLine())!=null){
         str.append(data+" ");
       }
      }catch(Exception e){
       str.append(e.toString());
      }
      st = str.toString();
     }catch(IOException es){
      st = "";
     }
     return st;     
    }

    /**
     * 新建目錄
     * @param folderPath 目錄
     * @return 返回目錄創(chuàng)建后的路徑
     */
    public String createFolder(String folderPath) {
        String txt = folderPath;
        try {
            java.io.File myFilePath = new java.io.File(txt);
            txt = folderPath;
            if (!myFilePath.exists()) {
                myFilePath.mkdir();
            }
        }
        catch (Exception e) {
            message = "創(chuàng)建目錄操作出錯";
        }
        return txt;
    }
   
    /**
     * 多級目錄創(chuàng)建
     * @param folderPath 準備要在本級目錄下創(chuàng)建新目錄的目錄路徑 例如 c:myf
     * @param paths 無限級目錄參數(shù)，各級目錄以單數(shù)線區(qū)分 例如 a|b|c
     * @return 返回創(chuàng)建文件后的路徑 例如 c:myfac
     */
    public String createFolders(String folderPath, String paths){
        String txts = folderPath;
        try{
            String txt;
            txts = folderPath;
            StringTokenizer st = new StringTokenizer(paths,"|");
            for(int i=0; st.hasMoreTokens(); i++){
                    txt = st.nextToken().trim();
                    if(txts.lastIndexOf("/")!=-1){
                        txts = createFolder(txts+txt);
                    }else{
                        txts = createFolder(txts+txt+"/");   
                    }
            }
       }catch(Exception e){
           message = "創(chuàng)建目錄操作出錯！";
       }
        return txts;
    }

   
    /**
     * 新建文件
     * @param filePathAndName 文本文件完整絕對路徑及文件名
     * @param fileContent 文本文件內(nèi)容
     * @return
     */
    public void createFile(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);
            myFile.close();
            resultFile.close();
        }
        catch (Exception e) {
            message = "創(chuàng)建文件操作出錯";
        }
    }

    /**
     * 有編碼方式的文件創(chuàng)建
     * @param filePathAndName 文本文件完整絕對路徑及文件名
     * @param fileContent 文本文件內(nèi)容
     * @param encoding 編碼方式 例如 GBK 或者 UTF-8
     * @return
     */
    public void createFile(String filePathAndName, String fileContent, String encoding) {
     
        try {
            String filePath = filePathAndName;
            filePath = filePath.toString();
            File myFilePath = new File(filePath);
            if (!myFilePath.exists()) {
                myFilePath.createNewFile();
            }
            PrintWriter myFile = new PrintWriter(myFilePath,encoding);
            String strContent = fileContent;
            myFile.println(strContent);
            myFile.close();
        }
        catch (Exception e) {
            message = "創(chuàng)建文件操作出錯";
        }
    }

    /**
     * 刪除文件
     * @param filePathAndName 文本文件完整絕對路徑及文件名
     * @return Boolean 成功刪除返回true遭遇異常返回false
     */
    public boolean delFile(String filePathAndName) {
     boolean bea = false;
        try {
            String filePath = filePathAndName;
            File myDelFile = new File(filePath);
            if(myDelFile.exists()){
             myDelFile.delete();
             bea = true;
            }else{
             bea = false;
             message = (filePathAndName+"<br>刪除文件操作出錯");
            }
        }
        catch (Exception e) {
            message = e.toString();
        }
        return bea;
    }
   

    /**
     * 刪除文件夾
     * @param folderPath 文件夾完整絕對路徑
     * @return
     */
    public void delFolder(String folderPath) {
        try {
            delAllFile(folderPath); //刪除完里面所有內(nèi)容
            String filePath = folderPath;
            filePath = filePath.toString();
            java.io.File myFilePath = new java.io.File(filePath);
            myFilePath.delete(); //刪除空文件夾
        }
        catch (Exception e) {
            message = ("刪除文件夾操作出錯");
        }
    }
   
   
    /**
     * 刪除指定文件夾下所有文件
     * @param path 文件夾完整絕對路徑
     * @return
     * @return
     */
    public boolean delAllFile(String path) {
     boolean bea = false;
        File file = new File(path);
        if (!file.exists()) {
            return bea;
        }
        if (!file.isDirectory()) {
            return bea;
        }
        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]);//先刪除文件夾里面的文件
                delFolder(path+"/"+ tempList[i]);//再刪除空文件夾
                bea = true;
            }
        }
        return bea;
    }

    /**
     * 復(fù)制單個文件
     * @param oldPathFile 準備復(fù)制的文件源
     * @param newPathFile 拷貝到新絕對路徑帶文件名
     * @return
     */
    public void copyFile(String oldPathFile, String newPathFile) {
        try {
            int bytesum = 0;
            int byteread = 0;
            File oldfile = new File(oldPathFile);
            if (oldfile.exists()) { //文件存在時
                InputStream inStream = new FileInputStream(oldPathFile); //讀入原文件
                FileOutputStream fs = new FileOutputStream(newPathFile);
                byte[] buffer = new byte[1444];
                while((byteread = inStream.read(buffer)) != -1){
                    bytesum += byteread; //字節(jié)數(shù) 文件大小
                    System.out.println(bytesum);
                    fs.write(buffer, 0, byteread);
                }
                inStream.close();
            }
        }catch (Exception e) {
            message = ("復(fù)制單個文件操作出錯");
        }
    }
   

    /**
     * 復(fù)制整個文件夾的內(nèi)容
     * @param oldPath 準備拷貝的目錄
     * @param newPath 指定絕對路徑的新目錄
     * @return
     */
    public void copyFolder(String oldPath, String newPath) {
        try {
            new File(newPath).mkdirs(); //如果文件夾不存在 則建立新文件夾
            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()){//如果是子文件夾
                    copyFolder(oldPath+"/"+file[i],newPath+"/"+file[i]);
                }
            }
        }catch (Exception e) {
            message = "復(fù)制整個文件夾內(nèi)容操作出錯";
        }
    }

    /**
     * 移動文件
     * @param oldPath
     * @param newPath
     * @return
     */
    public void moveFile(String oldPath, String newPath) {
        copyFile(oldPath, newPath);
        delFile(oldPath);
    }
   

    /**
     * 移動目錄
     * @param oldPath
     * @param newPath
     * @return
     */
    public void moveFolder(String oldPath, String newPath) {
        copyFolder(oldPath, newPath);
        delFolder(oldPath);
    }
    public String getMessage(){
        return this.message;
    }
}