java gz压缩文件解压

gzFileName压缩文件全路径

targetFileName解压后的文件全路径

public boolean unGzFile(String gzFileName,String targetFileName){
        GZIPInputStream in = null;
        FileOutputStream out = null;
        try {

            in = new GZIPInputStream(new FileInputStream(gzFileName));

            out = new FileOutputStream(targetFileName);
            byte[] buffer = new byte[1024 * 8];
            int count = 0;
            while((count =in.read(buffer)) != -1){
                out.write(buffer, 0, count);
            }

        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }finally {
            try {
                in.close();
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }
        return true;
    }