私が開発しているアプリケーションからサーバーに画像をアップロードする必要があります。GoogleVolleyを使用して画像をロードするためのマルチパートリクエストを開発する方法を知りたいのですが。
ありがとう
Google Volley
で画像をアップロードする例があります。見てください:
package net.colaborativa.exampleapp.api;
import Java.io.ByteArrayOutputStream;
import Java.io.File;
import Java.io.IOException;
import Java.nio.charset.Charset;
import Java.util.Collections;
import Java.util.HashMap;
import Java.util.Map;
import org.Apache.http.entity.ContentType;
import org.Apache.http.entity.mime.HttpMultipartMode;
import org.Apache.http.entity.mime.MultipartEntityBuilder;
import com.Android.volley.AuthFailureError;
import com.Android.volley.NetworkResponse;
import com.Android.volley.Request;
import com.Android.volley.Response;
import com.Android.volley.Response.ErrorListener;
import com.Android.volley.Response.Listener;
import com.Android.volley.VolleyLog;
import com.Android.volley.toolbox.HttpHeaderParser;
public class PhotoMultipartRequest<T> extends Request<T> {
private static final String FILE_PART_NAME = "file";
private MultipartEntityBuilder mBuilder = MultipartEntityBuilder.create();
private final Response.Listener<T> mListener;
private final File mImageFile;
protected Map<String, String> headers;
public PhotoMultipartRequest(String url, ErrorListener errorListener, Listener<T> listener, File imageFile){
super(Method.POST, url, errorListener);
mListener = listener;
mImageFile = imageFile;
buildMultipartEntity();
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = super.getHeaders();
if (headers == null
|| headers.equals(Collections.emptyMap())) {
headers = new HashMap<String, String>();
}
headers.put("Accept", "application/json");
return headers;
}
private void buildMultipartEntity(){
mBuilder.addBinaryBody(FILE_PART_NAME, mImageFile, ContentType.create("image/jpeg"), mImageFile.getName());
mBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
mBuilder.setLaxMode().setBoundary("xx").setCharset(Charset.forName("UTF-8"));
}
@Override
public String getBodyContentType(){
String contentTypeHeader = mBuilder.build().getContentType().getValue();
return contentTypeHeader;
}
@Override
public byte[] getBody() throws AuthFailureError{
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
mBuilder.build().writeTo(bos);
} catch (IOException e) {
VolleyLog.e("IOException writing to ByteArrayOutputStream bos, building the multipart request.");
}
return bos.toByteArray();
}
@Override
protected Response<T> parseNetworkResponse(NetworkResponse response) {
T result = null;
return Response.success(result, HttpHeaderParser.parseCacheHeaders(response));
}
@Override
protected void deliverResponse(T response) {
mListener.onResponse(response);
}
}
そして、あなたはこのようにそれを使うことができます:
RequestQueue mQueue = Volley.newRequestQueue(context);
PhotoMultipartRequest imageUploadReq = new PhotoMultipartRequest(url, ErrorListener, Listener, imageFile);
mQueue.add(imageUploadReq);
これらのコードがあなたに刺激を与えることを願っています。
@ silverknight の回答は機能しますが、httpcomponents
の依存関係を解決するためにbuild.gradle
に以下を追加する必要もありました。
Android {
...
// have to exclude these otherwise you'll get:
// Error:Gradle: Execution failed for task: ... com.Android.builder.packaging.DuplicateFileException: ...
packagingOptions {
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
exclude 'META-INF/DEPENDENCIES'
}
}
dependencies {
...
compile 'com.Android.volley:volley:1.0.0'
compile('org.Apache.httpcomponents:httpmime:4.3.6') {
exclude module: 'httpclient'
}
compile 'org.Apache.httpcomponents:httpclient-Android:4.3.5.1'
}
注:org.Apache.httpcomponents:httpclientは使用しないでください
標準バージョンの 'org.Apache.httpcomponents:httpclient:4.5.2'
は使用しないでください。
あなたがしようとすると:
Android {
...
}
dependencies {
...
compile 'com.Android.volley:volley:1.0.0'
compile 'org.Apache.httpcomponents:httpcore:4.4.4'
compile 'org.Apache.httpcomponents:httpmime:4.5.2'
compile('org.Apache.httpcomponents:httpclient:4.5.2'
}
あなたは得るでしょう:
Java.lang.NoSuchFieldError: No static field INSTANCE of type Lorg/Apache/http/message/BasicHeaderValueFormatter; in class Lorg/Apache/http/message/BasicHeaderValueFormatter; or its superclasses (declaration of 'org.Apache.http.message.BasicHeaderValueFormatter' appears in /system/framework/ext.jar)
むしろ、Android httpclient
のポートとして this SO answer のように使用する必要があります
注:org.Apache.httpcomponents:httpmime:4.3.6を使用してください
あなたはorg.Apache.httpcomponents:httpmime:4.3.6
を使用する必要があります。バージョン4.3.x
以上にはできません。たとえば、執筆時点では 4.5.2 であるhttpmime
の最新バージョンを使用したくなるかもしれません。
Android {
...
}
dependencies {
...
compile('org.Apache.httpcomponents:httpmime:4.5.2') {
exclude module: 'httpclient'
}
compile 'org.Apache.httpcomponents:httpclient-Android:4.3.5.1'
この構成では、PhotoMultipartRequest
を呼び出すと次のようになります。
Java.lang.NoSuchMethodError: No static method create(Ljava/lang/String;[Lorg/Apache/http/NameValuePair;)Lorg/Apache/http/entity/ContentType; in class Lorg/Apache/http/entity/ContentType; or its super classes (declaration of 'org.Apache.http.entity.ContentType' appears in /xxx/base.apk)
このクラスを https://Gist.github.com/ishitcno1/11394069 からコピーしました==使い方を紹介します。私の場合はうまくいきました。このクラスをコピーします。必要な変更を行います。
package com.tagero.watchfriend;
import Java.io.ByteArrayOutputStream;
import Java.io.File;
import Java.io.IOException;
import org.Apache.http.HttpEntity;
import org.Apache.http.entity.mime.MultipartEntityBuilder;
import org.Apache.http.entity.mime.content.FileBody;
import Android.util.Log;
import com.Android.volley.AuthFailureError;
import com.Android.volley.NetworkResponse;
import com.Android.volley.Request;
import com.Android.volley.Response;
import com.Android.volley.VolleyLog;
public class PhotoMultipartRequest extends Request<String> {
static final String TAG = "xxxxxx";
public static final String KEY_PICTURE = "kullanici_resmi";
public static final String KEY_PICTURE_NAME = "kullanici_resmi_dosya_adi";
private HttpEntity mHttpEntity;
@SuppressWarnings("rawtypes")
private Response.Listener mListener;
public PhotoMultipartRequest(String url, String filePath,
Response.Listener<String> listener,
Response.ErrorListener errorListener) {
super(Method.POST, url, errorListener);
mListener = listener;
mHttpEntity = buildMultipartEntity(filePath);
}
public PhotoMultipartRequest(String url, File file,
Response.Listener<String> listener,
Response.ErrorListener errorListener) {
super(Method.POST, url, errorListener);
mListener = listener;
mHttpEntity = buildMultipartEntity(file);
}
private HttpEntity buildMultipartEntity(String filePath) {
File file = new File(filePath);
return buildMultipartEntity(file);
}
private HttpEntity buildMultipartEntity(File file) {
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
String fileName = file.getName();
logYazdir("fileName : " + fileName);
FileBody fileBody = new FileBody(file);
builder.addPart(KEY_PICTURE, fileBody);
builder.addTextBody(KEY_PICTURE_NAME, fileName);
return builder.build();
}
@Override
public String getBodyContentType() {
return mHttpEntity.getContentType().getValue();
}
@Override
public byte[] getBody() throws AuthFailureError {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
mHttpEntity.writeTo(bos);
} catch (IOException e) {
VolleyLog.e("IOException writing to ByteArrayOutputStream");
}
return bos.toByteArray();
}
@Override
protected Response<String> parseNetworkResponse(NetworkResponse response) {
return Response.success("Uploaded", getCacheEntry());
}
@SuppressWarnings("unchecked")
@Override
protected void deliverResponse(String response) {
mListener.onResponse(response);
}
private void logYazdir(String str) {
if (Sabitler.LOG_KONTROL) {
Log.d(TAG, str);
}
}
}
これが画像をアップロードする方法です。
public void resimYukle(final String filePath) {
logYazdir("KaydolActivity-uploadImage çağırıldı!");
logYazdir("\nfilePath : " + filePath);
RequestQueue rq = Volley.newRequestQueue(this);
PhotoMultipartRequest stringRequest = new PhotoMultipartRequest(
Sabitler.URL_RESIM_YUKLE, filePath,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
logYazdir("response : " + response);
JSONObject veri_json;
try {
veri_json = new JSONObject(response);
int success = 0;
String message = "";
try {
success = veri_json
.getInt(Sabitler.SERVER_RESP_SUCCESS);
message = veri_json
.getString(Sabitler.SERVER_RESP_MESSAGE);
Log.d(TAG, "success : " + success
+ "\nmessage : " + message);
} catch (JSONException e) {
e.printStackTrace();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
logYazdir("Error [" + error + "]");
Toast.makeText(getBaseContext(),
"Sunucuya bağlanılamadı!", Toast.LENGTH_LONG)
.show();
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("kullanici_resmi_dosya_adi", "");
return params;
}
};
rq.add(stringRequest);
}
どのように取得しますfilePath
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
logYazdir("KaydolActivity-onActivityResult çağırıldı!");
if (requestCode == GALERIDEN_RESIM && resultCode == RESULT_OK
&& data != null) {
logYazdir("KaydolActivity-GALERIDEN_RESIM çağırıldı!");
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Bitmap bmp = null;
try {
bmp = getBitmapFromUri(selectedImage);
} catch (IOException e) {
e.printStackTrace();
}
kullanici_resmi_iview.setImageBitmap(bmp);
resimYukle(picturePath);
}
super.onActivityResult(requestCode, resultCode, data);
}
最後に、これをアクティビティで定義します。
private int GALERIDEN_RESIM = 2;
重要な部分、これはPHPサーバーのコードです。
<?php
$target_dir = "resimler/";
$target_file = $target_dir . basename($_FILES["kullanici_resmi"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["kullanici_resmi_dosya_adi"])) {
$check = getimagesize($_FILES["kullanici_resmi"]["tmp_name"]);
if($check !== false) {
$response["success"] = 1;
$response["message"] = "File is an image - " . $check["mime"] . ".";
echo json_encode($response);
$uploadOk = 1;
} else {
$response["success"] = 0;
$response["message"] = "File is not an image.";
echo json_encode($response);
$uploadOk = 0;
}
}
// Check if file already exists
if (file_exists($target_file)) {
$response["success"] = 0;
$response["message"] = "Sorry, file already exists.";
echo json_encode($response);
$uploadOk = 0;
}
// Check file size
if ($_FILES["kullanici_resmi"]["size"] > 750000) {
$response["success"] = 0;
$response["message"] = "Sorry, your file is too large.";
echo json_encode($response);
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
$response["success"] = 0;
$response["message"] = "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
echo json_encode($response);
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
$response["success"] = 0;
$response["message"] = "Sorry, your file was not uploaded.";
echo json_encode($response);
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["kullanici_resmi"]["tmp_name"], $target_file)) {
$response["success"] = 0;
$response["message"] = "The file ". basename( $_FILES["kullanici_resmi"]["name"]). " has been uploaded.";
echo json_encode($response);
} else {
$response["success"] = 0;
$response["message"] = "Sorry, there was an error uploading your file.";
echo json_encode($response);
}
}
?>
この方法でファイルを送信してください。
private HttpEntity buildMultipartEntity(File file) {
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
String fileName = file.getName();
logYazdir("fileName : " + fileName);
FileBody fileBody = new FileBody(file);
builder.addPart(KEY_PICTURE, fileBody);
builder.addTextBody(KEY_PICTURE_NAME, fileName);
return builder.build();
}
これに注意してください
public static final String KEY_PICTURE = "kullanici_resmi";
kullanici_resmi
PHPコードで使用され、画像ファイルを示します。この方法で、任意のファイルを送信できます。説明が不十分なため申し訳ありませんが、すべてを説明しようとしました。