서버에 이미지 업로드 하는 예제 입니다.
멀티파트로 업로드 합니다.
andorid의 네트워크 라이브러리는 Retrofit2를 사용합니다.
1.Server
1.1 테스트 페이지
<html>
<head>
<title>File Uploading Form</title>
</head>
<body>
<h3>File Upload:</h3>
Select a file to upload: <br />
<form action="imageUpload.jsp" method="post"
enctype="multipart/form-data">
<input type="file" name="fileeeee" size="50" />
<br />
<input type="submit" value="Upload File" />
</form>
</body>
</html>
1.2 업로드
<%@ page import="java.io.*,java.util.*, javax.servlet.*" %>
<%@ page import="javax.servlet.http.*" %>
<%@ page import="org.apache.commons.fileupload.*" %>
<%@ page import="org.apache.commons.fileupload.disk.*" %>
<%@ page import="org.apache.commons.fileupload.servlet.*" %>
<%@ page import="org.apache.commons.io.output.*" %>
<%
File file ;
int maxFileSize = 5000 * 1024;
int maxMemSize = 5000 * 1024;
ServletContext context = pageContext.getServletContext();
//String filePath = context.getInitParameter("file-upload");
String filePath = config.getServletContext().getRealPath("/upload/");
System.out.println("realPath :"+filePath);
File temporaryDir = new File(config.getServletContext().getRealPath("/temp/"));
System.out.println("temporaryDir :"+temporaryDir);
// Verify the content type
String contentType = request.getContentType();
if (contentType!=null && (contentType.indexOf("multipart/form-data") >= 0)) {
DiskFileItemFactory factory = new DiskFileItemFactory();
// maximum size that will be stored in memory
factory.setSizeThreshold(maxMemSize);
// Location to save data that is larger than maxMemSize.
//factory.setRepository(new File("c:\\temp"));
factory.setRepository(temporaryDir);
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
// maximum file size to be uploaded.
upload.setSizeMax( maxFileSize );
try{
// Parse the request to get file items.
List fileItems = upload.parseRequest(request);
System.out.println("fileItems.size() :"+fileItems.size());
// Process the uploaded file items
Iterator i = fileItems.iterator();
out.println("<html>");
out.println("<head>");
out.println("<title>JSP File upload</title>");
out.println("</head>");
out.println("<body>");
while ( i.hasNext () )
{
System.out.println("aaaaaaaaaaaa");
FileItem fi = (FileItem)i.next();
if ( !fi.isFormField () ){
// Get the uploaded file parameters
String fieldName = fi.getFieldName();
System.out.println("@@ fieldName : "+fieldName);
String fileName = fi.getName();
boolean isInMemory = fi.isInMemory();
long sizeInBytes = fi.getSize();
// Write the file
if( fileName.lastIndexOf("\\") >= 0 ){
System.out.println("111111111");
file = new File( filePath +
fileName.substring( fileName.lastIndexOf("\\"))) ;
}else{
file = new File( filePath +
fileName.substring(fileName.lastIndexOf("\\")+1)) ;
}
fi.write( file ) ;
out.println("Uploaded Filename: " + filePath +
fileName + "<br>");
}else{
System.out.println("bbbbbbb");
}
}
out.println("</body>");
out.println("</html>");
}catch(Exception ex) {
System.out.println(ex);
}
}else{
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet upload</title>");
out.println("</head>");
out.println("<body>");
out.println("<p>No file uploaded</p>");
out.println("</body>");
out.println("</html>");
}
%>
2.Client
2.1 Gradle
compile'com.squareup.retrofit2:retrofit:2.1.0'
compile'com.squareup.okhttp:okhttp:2.4.0'
compile'com.google.code.gson:gson:1.7.2'
compile'com.squareup.retrofit2:converter-gson:2.0.0-beta4'
compile'com.squareup.okhttp3:logging-interceptor:3.3.1'
2.2.activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/btn_select"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="select file"
/>
<TextView
android:id="@+id/tv_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/btn_select"
android:autoLink="web"/>
</RelativeLayout>
2.3. UploadService
POST의 주소는 적절히 넣어 주세요..경로 부분을 삭제하였습니다.
import okhttp3.MultipartBody;
import okhttp3.RequestBody;
import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.http.Multipart;
import retrofit2.http.POST;
import retrofit2.http.Part;
public interface UploadService {
@Multipart
@POST("//imageUpload.jsp")
Call<ResponseBody> uploadFile(
@Part("description") RequestBody description,
@Part MultipartBody.Part file);
}
2.3. MyRetrofit2
import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;
public class MyRetrofit2 {
public static final String URL = "http://192.168.0.95:8080/";
static Retrofit mRetrofit;
public static Retrofit getRetrofit2(){
if(mRetrofit == null){
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.addInterceptor(logging);
mRetrofit = new Retrofit.Builder()
.baseUrl(URL)
.addConverterFactory(GsonConverterFactory.create())
.client(httpClient.build())
.build();
}
return mRetrofit;
}
}
2.4 Main.
import android.Manifest;
import android.app.Activity;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.RequestBody;
import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class MainActivity extends AppCompatActivity {
private static final int PICK_FROM_FILE = 100;
Button btn_select;
TextView tv_message;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
verifyStoragePermissions(this);
tv_message = (TextView)findViewById(R.id.tv_message);
btn_select = (Button)findViewById(R.id.btn_select);
btn_select.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Intent intent = new Intent(Intent.ACTION_PICK);
// intent.setType(android.provider.MediaStore.Images.Media.CONTENT_TYPE);
// intent.setData(android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
// startActivityForResult(intent, PICK_FROM_FILE);
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType(android.provider.MediaStore.Images.Media.CONTENT_TYPE);
intent.setData(android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
Intent chooser = Intent.createChooser(intent,"1a2a3a");
startActivityForResult(chooser, PICK_FROM_FILE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == PICK_FROM_FILE){
if(resultCode == RESULT_OK){
Uri selectImage = data.getData();
uploadImage(selectImage);
}
}
}
private String getRealPathFromURI(Uri contentUri) {
String[] proj = { MediaStore.Images.Media.DATA };
CursorLoader loader = new CursorLoader(this, contentUri, proj, null, null, null);
Cursor cursor = loader.loadInBackground();
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String result = cursor.getString(column_index);
cursor.close();
return result;
}
public void uploadImage(Uri uri){
UploadService service = MyRetrofit2.getRetrofit2().create(UploadService.class);
File file = new File(getRealPathFromURI(uri));
MultipartBody.Part body1 = prepareFilePart("image", uri);
RequestBody description = createPartFromString("hello, this is description speaking");
Call<ResponseBody> call = service.uploadFile(description, body1);
tv_message.setText(call.request().url().toString()); //todo 디버깅용
call.enqueue(new Callback<ResponseBody>() {
@Override
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
}
@Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
}
});
}
public static final String MULTIPART_FORM_DATA = "multipart/form-data";
@NonNull
private RequestBody createPartFromString(String descriptionString) {
return RequestBody.create(
MediaType.parse(MULTIPART_FORM_DATA), descriptionString);
}
@NonNull
private MultipartBody.Part prepareFilePart(String partName, Uri fileUri) {
File file = new File(getRealPathFromURI(fileUri));
RequestBody requestFile = RequestBody.create(MediaType.parse(MULTIPART_FORM_DATA), file);
return MultipartBody.Part.createFormData(partName, file.getName(), requestFile);
}
// Storage Permissions variables
private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
//persmission method.
public static void verifyStoragePermissions(Activity activity) {
// Check if we have read or write permission
int writePermission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
int readPermission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE);
if (writePermission != PackageManager.PERMISSION_GRANTED || readPermission != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions( activity, PERMISSIONS_STORAGE,REQUEST_EXTERNAL_STORAGE );
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == REQUEST_EXTERNAL_STORAGE) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// save file
} else {
Toast.makeText(getApplicationContext(), "PERMISSION_DENIED", Toast.LENGTH_SHORT).show();
}
}
}
}
2.2 manifest.xml
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
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