【发布时间】：2016-12-15 10:20:49
【问题描述】：
我正在尝试发出 volley PUT 请求来上传图像，由于 httpEntity 现在已被弃用，我不得不做一些其他研究，我遇到了这些解决方案并尝试将它们实现到我的代码中： 1.https://gist.github.com/anggadarkprince/a7c536da091f4b26bb4abf2f92926594 2.How to send multipart request using Volley without HttpEntity? 3.Working POST Multipart Request with Volley and without HttpEntity 但我仍然无法上传我的图片。我要上传的图像要么是从相机中捕获的，要么是在图库中选择的，并在单击时执行。
ProfileSetting.java
public class ProfileSetting extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
private ImageView CustomerIcon;
private Button confirm_button;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile_setting);
CustomerIcon = (ImageView) findViewById(R.id.CustomerIcon);
confirm_button = (Button) findViewById(R.id.confirm_button);
CustomerIcon.setOnClickListener(new ImageView.OnClickListener(){
public void onClick(View v){
showPickImageDialog();
}
});
confirm_button.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View view) {
//PUT VOLLEY
saveProfileAccount();
}
});
}
private void showPickImageDialog() {
AlertDialog.Builder builderSingle = new AlertDialog.Builder(ProfileSetting.this);
builderSingle.setTitle("Choose Profile Icon");
final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(
ProfileSetting.this,
android.R.layout.select_dialog_singlechoice);
arrayAdapter.add("Gallery");
arrayAdapter.add("Camera");
builderSingle.setNegativeButton(
"cancel",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builderSingle.setAdapter(
arrayAdapter,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case 0:
Intent pickPhoto = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(pickPhoto, 1);
break;
case 1:
Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(takePicture, 0);
break;
}
}
});
builderSingle.show();
}
protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch(requestCode) {
case 0:
if(resultCode == RESULT_OK){
Uri selectedImage = imageReturnedIntent.getData();
CustomerIcon.setImageURI(selectedImage);
}
break;
case 1:
if(resultCode == RESULT_OK){
Uri selectedImage = imageReturnedIntent.getData();
CustomerIcon.setImageURI(selectedImage);
}
break;
}
}
private void saveProfileAccount() {
// loading or check internet connection or something...
// ... then
String url = "https://url to put image to";
SharedPreferences sp1=this.getSharedPreferences("FINALTOKEN", Context.MODE_PRIVATE);
final String finalToken = sp1.getString("FINALTOKEN","");
VolleyMultipartRequest multipartRequest = new VolleyMultipartRequest(Request.Method.PUT, 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 succeed 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
public Map<String,String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers= new HashMap<>();
headers.put("Authorization",finalToken);
return headers;
}
@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", ImageConverter.getFileDataFromDrawable(getBaseContext(), CustomerIcon.getDrawable()), "image/jpeg"));
return params;
}
};
VolleySingleton.getInstance(getBaseContext()).addToRequestQueue(multipartRequest);
}
}
VolleyMultipartRequest.java 和 VolleySingleton.java 我使用与我的第一个链接相同的类。
我的错误首先是我无法在 if 语句中解析符号 'Constant'：
if (status.equals(Constant.REQUEST_SUCCESS))
所以我尝试评论该语句，运行代码后出现以下错误：
BasicNetwork.performRequest: Unexpected response code 500 for https://my url
W/System.err: org.json.JSONException: No value for status
我不确定是什么导致了我的问题，请帮助，谢谢！
【问题讨论】：
-
将您的图像转换为base64字符串并使用POST方法。它很容易。查看教程@Android Volley Image Upload
-
嗨@RahulSharma，是否可以使用 PUT 方法？因为我的后端需要一个 PUT 方法。
标签： java android android-volley multipart