Question

我正在尝试将图片上传到MySQLi服务器。为此，我创建了一个表，列id为int，图像为LongBlob。我使用了这个方法：

 ByteArrayOutputStream baos = new ByteArrayOutputStream();
 bmp.compress(Bitmap.CompressFormat.JPEG, 0, baos);
 byte[] imageBytes = baos.toByteArray();
 String encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT);

对图像进行编码，然后：

byte[] image;
image= Base64.decode(imageString,Base64.DEFAULT);
Bitmap bmp = BitmapFactory.decodeByteArray(image, 0, image.length);

解码它。问题是我收到了这个错误：

decoder->decode returned false

经过大量检查后，我注意到解析器更改了我上传的字符串。

这是解析器：

public class JSONParser {

static JSONObject jObj;
static String json;

// constructor
public JSONParser() {
}

// function get json from url
// by making HTTP POST or GET mehtod
public static JSONObject makeHttpRequest(String url, String method, ContentValues params) {
    // Making HTTP request
    try {
        final OkHttpClient client = new OkHttpClient();
        Request request;
        // check for request method
        if (method.equals("POST")) {
            // request method is POST

            MediaType contentType = MediaType.parse("application/x-www-form-urlencoded; charset=UTF-8");
            String content = "";
            for (String key : params.keySet())
            {
                if ( !content.isEmpty())
                    content += "&";

                content += key + "=" + params.get(key);
            }

            RequestBody body = RequestBody.create(contentType, content);
            request = new Request.Builder().url(url).post(body).build();
        }
        else  {
            // request method is GET
            request = new Request.Builder().url(url).build();
        }
        final Response response = client.newCall(request).execute();
        json = response.body().string();

    } catch (IOException e) {
        e.printStackTrace();
    }
    // try parse the string to a JSON object
    try {
        jObj = new JSONObject(json);
    } catch (JSONException e ){
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }
    // return JSON String
    return jObj;
}
}

如何更改解析器以使字符串保持原始状态？

解析器更改Base64编码字符串

0 个答案: