文件压缩与删除(整理)

java 代码

/**
     *
     * @param inputFileName
     *          需要压缩的文件路径
     * @param outputFileName
     *          输出的文件名
     * @throws Exception
     */
    public boolean zip(String inputFileName, String outputFileName){
        boolean bNodFoundFile=true;
        ZipOutputStream out = null;
        try {
            out = new ZipOutputStream(new FileOutputStream(
                    outputFileName));
            zip(out, new File(inputFileName), "");
            /*注意当压缩文件夹为空时,将抛出异常*/
            out.close();
        } catch (IOException e) {
            bNodFoundFile=false;
        }finally{
            if(out!=null){
                try {
                    out.close();
                    out=null;
                } catch (IOException e) {
                }
            }
        }

        return bNodFoundFile;
    }

    private void zip(ZipOutputStream out, File f, String base){
        FileInputStream in =null;
        try{
            if (f.isDirectory()) {
                File[] fl = f.listFiles();
                /*此处解决压缩未端数据不正确*/
                if (System.getProperty("os.name").startsWith("Windows")) {
                    base = base.length() == 0 ? "" : base + "\\";
                    out.putNextEntry(new ZipEntry(base));
                } else {
                    base = base.length() == 0 ? "" : base + "/";
                    out.putNextEntry(new ZipEntry(base));
                }
                int indexSize=fl.length;
                for (int i = 0; i < indexSize; i++) {
                    zip(out, fl[i], base + fl[i].getName());
                }
            } else {
                out.putNextEntry(new ZipEntry(base));
                in = new FileInputStream(f);
                int b;
                byte[] buffer = new byte[4096];
                while ((b = in.read(buffer)) != -1) {
                    out.write(buffer,0,b);
                }
            }
        }catch(IOException e){
        } finally{
            try {
                if(in!=null){
                    in.close();
                    in=null;
                }
            } catch (IOException e1) {
            }
        }
    }

    /**
     * 删文件
     * @param deleteFilePath
     *          删除文件路径
     */
    public void deleteFile(final String deleteFilePath){
        File file=new File(deleteFilePath);
        deleteFile(file);
        file.delete();
    }

    /**
     * 实施删除文件
     * @param file
     */
    private void deleteFile(File file){
        if(file.isDirectory()){
            File[] fl = file.listFiles();
            int indexSize=fl.length;
            for(int i=0; i<indexSize; i++){
                deleteFile(fl[i]);
            }
            /*此处删除目录*/
            file.delete();
        }else{
            /*此处删除文件*/
            file.delete();
        }
    }

分享到：

jdbc调用存储过程时，如何在将一个list型数 ... | JAVA下载的返回值

• 2007-08-09 16:41
• 浏览 1640
• 评论(0)
• 论坛回复 / 浏览 (0 / 2855)
• 查看更多