base64帧图解码保存到指定目录图片

//告警图片保存路径
    public String getPath(){
        String path = Thread.currentThread().getContextClassLoader().getResource("").getPath(); 
        try {
            path=URLDecoder.decode(path,"utf-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }  
        int end = path.length() - "WEB-INF/classes/".length();
        path = path.substring(1, end).replace(\'/\', \'\\\'); 
        System.out.print(path);
        return path;
    }
    private String path=getPath()+"image\\";
    /**
     * 对前端传来的base64图片进行解码并保存到image目录
     * @param image base64编码图片
     * @param notitle 
     * @return imgpath  图片:xxx.png
     */
    //对前端传来的base64图片进行解码
    public String decodeBase64ToImage(String alert_pic,String alert_note) {
        BASE64Decoder decoder = new BASE64Decoder();
        String imgPath=alert_note+".png";
        
        try {
            FileOutputStream write = new FileOutputStream(new File(path+imgPath));
            byte[] decoderBytes = decoder.decodeBuffer(alert_pic);
            write.write(decoderBytes);
            write.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return imgPath;
    }