BufferedWriter类型中的方法write（int）不适用于参数（byte []）

Question

我是春天的初学者，

我正在尝试从网上下载文件并将其存储在我的本地磁盘中，但是我收到了瓷砖中提到的编译错误

我试图将ResponseEntity和json作为String工作但是当我尝试打开图像时图像被损坏或不受支持

我的代码：

public static void main(String arg[]) throws IOException
    {




        HttpHeaders requestHeaders = new HttpHeaders();
        //requestHeaders.setAcceptEncoding(ContentCodingType.IDENTITY);
        HttpEntity<?> requestEntity = new HttpEntity<Object>(requestHeaders);

        // Create a new RestTemplate instance
        RestTemplate restTemplate = new RestTemplate();

        // Add the String message converter
        restTemplate.getMessageConverters().add(new StringHttpMessageConverter());

        // Make the HTTP GET request, marshaling the response to a String
        ResponseEntity<byte[]> response = restTemplate.exchange("http://www.nndb.com/people/954/000354889/duke-kahanamoku-2-sized.jpg", HttpMethod.GET, requestEntity,byte[].class);
        File file = new File("/Users/crohitk/Desktop/image.jpg");

        // if file doesnt exists, then create it
        if (!file.exists()) {
            file.createNewFile();
        }
        byte[] json =response.getBody();
        FileWriter fw = new FileWriter(file.getAbsoluteFile());
        BufferedWriter bw = new BufferedWriter(fw);
        bw.write(json);
        bw.close();

        System.out.println("Done");     


        System.out.println(response.getBody());
        }