[英]How to perform uploading of data which could be audio, text or image in Android?
我正在尝试将android中的音频文件上传到服务器。 问题是我不知道如何在Android中编写上传代码,或者我是否可以使用任何库或API。
我是Android开发的新手,没有服务器端的经验。 我对如何连接和与服务器通信,将数据发布到服务器,从服务器获取数据以及从服务器查找的响应知之甚少。
我试图找到一个教程或指南,可以显示如何在Android上传,并解释代码中正在做什么。 有关如何学习与服务器通信的任何指导或建议都会非常有帮助。
使用此代码使用volley进行网络请求以上传文本,多部分(音频,图像等):
String url = "http://yoururl.com";
VolleyMultipartRequest multipartRequest = new VolleyMultipartRequest(Request.Method.POST, url, new Response.Listener<NetworkResponse>() {
@Override
public void onResponse(NetworkResponse response) {
String resultResponse = new String(response.data);
try {
JSONObject result = new JSONObject(resultResponse);
String status = result.getString("status");
String message = result.getString("message");
if (status.equals(Constant.REQUEST_SUCCESS)) {
// tell everybody you have succed upload image and post strings
Log.i("Messsage", message);
} else {
Log.i("Unexpected", message);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
NetworkResponse networkResponse = error.networkResponse;
String errorMessage = "Unknown error";
if (networkResponse == null) {
if (error.getClass().equals(TimeoutError.class)) {
errorMessage = "Request timeout";
} else if (error.getClass().equals(NoConnectionError.class)) {
errorMessage = "Failed to connect server";
}
} else {
String result = new String(networkResponse.data);
try {
JSONObject response = new JSONObject(result);
String status = response.getString("status");
String message = response.getString("message");
Log.e("Error Status", status);
Log.e("Error Message", message);
if (networkResponse.statusCode == 404) {
errorMessage = "Resource not found";
} else if (networkResponse.statusCode == 401) {
errorMessage = message+" Please login again";
} else if (networkResponse.statusCode == 400) {
errorMessage = message+ " Check your inputs";
} else if (networkResponse.statusCode == 500) {
errorMessage = message+" Something is getting wrong";
}
} catch (JSONException e) {
e.printStackTrace();
}
}
Log.i("Error", errorMessage);
error.printStackTrace();
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
params.put("api_token", "gh659gjhvdyudo973823tt9gvjf7i6ric75r76");
params.put("name", mNameInput.getText().toString());
params.put("location", mLocationInput.getText().toString());
params.put("about", mAvatarInput.getText().toString());
params.put("contact", mContactInput.getText().toString());
return params;
}
@Override
protected Map<String, DataPart> getByteData() {
Map<String, DataPart> params = new HashMap<>();
// file name could found file base or direct access from real path
// for now just get bitmap data from ImageView
params.put("avatar", new DataPart("file_avatar.jpg", AppHelper.getFileDataFromDrawable(getBaseContext(), mAvatarImage.getDrawable()), "image/jpeg"));
params.put("cover", new DataPart("file_cover.jpg", AppHelper.getFileDataFromDrawable(getBaseContext(), mCoverImage.getDrawable()), "image/jpeg"));
return params;
}
};
VolleySingleton.getInstance(getBaseContext()).addToRequestQueue(multipartRequest);
有关更多代码,您可以访问此网址
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