Android实现批量照片上传至server,拍照或者从相冊选择

Posted mfmdaoyou

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了Android实现批量照片上传至server,拍照或者从相冊选择相关的知识,希望对你有一定的参考价值。



近期因为项目需求,须要完毕批量照片上传,折腾了一段时间,最终完毕了,达到了例如以下效果

                                 技术分享技术分享


主界面主要有GridView组成和button组成,当按下一个格点时,会调用相机或者相冊,拍照或者选择相冊照片,选择完毕之后,将缩略图显示在GridView。在这里说明一下。假设GridView显示不出来。说明图片太大了。须要压缩,在我的上一篇博客,具体解说了图片压缩的原理与过程。这里不再赘述。

以下贴上代码,

主界面:

package com.qian.pos;



import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Picture;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.qian.pos.util.BitmapUtil;
import com.qian.pos.util.FileUtils;
import com.qian.pos.util.PictureUtil;
import com.qian.pos.util.UploadUtil;
import com.qian.pos.util.UploadUtil.OnUploadProcessListener;
import com.qian.servletasynchttp.R;

public class ImageUploadActivity extends Activity// implements OnUploadProcessListener
{
	private static final String TAG = "uploadImage";
	protected static final int TO_UPLOAD_FILE = 1;  
	protected static final int UPLOAD_FILE_DONE = 2;  
	public static final int TO_SELECT_PHOTO = 3;
	private static final int UPLOAD_INIT_PROCESS = 4;
	private static final int UPLOAD_IN_PROCESS = 5;
	private static String requestURL = "http://114.55.72.18/UnionPay/UploadAction";
	private Button uploadButton;
	//private ProgressBar progressBar;
	
	private String picPath = null;
	private ProgressDialog progressDialog;
	
	
	private GridView list_gv;
	private MyAdapter adapter;
	
	private HashMap<Integer,Bitmap> imageMap = new HashMap<Integer, Bitmap>();
	private HashMap<Integer,String> filePathMap = new HashMap<Integer, String>();
	private Handler handler = new Handler(){
		@Override
		public void handleMessage(Message msg) {
			switch (msg.what) {
			case TO_UPLOAD_FILE:
				toUploadFile();
				break;
			case UPLOAD_INIT_PROCESS:
				//progressBar.setMax(msg.arg1);
				break;
			case UPLOAD_IN_PROCESS:
				//progressBar.setProgress(msg.arg1);
				break;
			case UPLOAD_FILE_DONE:
				String result = "响应码:"+msg.arg1+"\n响应信息:"+msg.obj+"\n耗时:"+UploadUtil.getRequestTime()+"秒";
				
				break;
			default:
				break;
			}
			super.handleMessage(msg);
		}
		
	};
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        initView();
    }
	private void initView() {
        uploadButton = (Button) this.findViewById(R.id.uploadImage);
        uploadButton.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				if(picPath!=null)
				{
					handler.sendEmptyMessage(TO_UPLOAD_FILE);
				}else{
					Toast.makeText(ImageUploadActivity.this, "上传的文件路径出错", Toast.LENGTH_LONG).show();
				}
				
			}
		});
        progressDialog = new ProgressDialog(this);
        list_gv = (GridView) findViewById(R.id.gv_image);
        adapter = new MyAdapter();
        list_gv.setAdapter(adapter);
        list_gv.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				Intent intent;
				switch (position) {
				case 0:
					intent = new Intent(ImageUploadActivity.this,SelectPicActivity.class);
					startActivityForResult(intent, 0);
					break;
				case 1:
					intent = new Intent(ImageUploadActivity.this,SelectPicActivity.class);
					startActivityForResult(intent, 1);
					break;
				case 2:
					intent = new Intent(ImageUploadActivity.this,SelectPicActivity.class);
					startActivityForResult(intent, 2);
					break;
				case 3:
					intent = new Intent(ImageUploadActivity.this,SelectPicActivity.class);
					startActivityForResult(intent, 3);
					break;
				case 4:
					intent = new Intent(ImageUploadActivity.this,SelectPicActivity.class);
					startActivityForResult(intent, 4);
					break;
				}
				
			}
        	
		});
	}
	
	
	private class MyAdapter extends BaseAdapter {

		@Override
		public int getCount() {
			return 5;
		}

		@Override
		public Object getItem(int position) {
			return null;
		}

		@Override
		public long getItemId(int position) {
			return 0;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			View view = View.inflate(ImageUploadActivity.this, R.layout.item_grid, null);
			ImageView image = (ImageView) view.findViewById(R.id.item_grida_image);
			
			Iterator<Integer> iterator = imageMap.keySet().iterator();
			while(iterator.hasNext()) {
				Integer next = iterator.next();
				if(next.intValue() == position) {
					image.setImageBitmap(imageMap.get(next));
				}
			}
			TextView textView = (TextView) view.findViewById(R.id.tv_explain);
			switch (position) {
			case 0:
				textView.setText("照片1");
				break;
			case 1:
				textView.setText("<span style="font-family: 'Microsoft YaHei';">照片2</span>");
				break;
			case 2:
				textView.setText("照片3");
				break;
			case 3:
				textView.setText("照片4");
				break;
			case 4:
				textView.setText("照片5");
				break;
			default:
				break;
			}
			
			
			return view;
		}
		
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if(resultCode==Activity.RESULT_OK) {
			picPath = data.getStringExtra(SelectPicActivity.KEY_PHOTO_PATH);
			Log.i(TAG, "终于选择的图片="+picPath);
		//	Toast.makeText(getApplicationContext(), "终于选择的图片="+picPath, 0).show();
			Bitmap bm = BitmapFactory.decodeFile(picPath);
			//Bitmap tempBitmap = BitmapUtil.createImageThumbnail(picPath,128);//压缩图片
			//Bitmap saveBitmap = BitmapUtil.createImageThumbnail(picPath,2048);
			Bitmap tempBitmap = PictureUtil.getSmallBitmap(picPath, 128, 128);//压缩图片
			Bitmap saveBitmap = PictureUtil.getSmallBitmap(picPath,1280,720);//上传server的bitmap 手机横着拍照
			String path = Environment.getExternalStorageDirectory()+ "/pos/"+requestCode+".JPEG";
			FileUtils.saveBitmap(saveBitmap, requestCode+"");
			filePathMap.put(requestCode, path);
			imageMap.put(requestCode, tempBitmap);
			//Toast.makeText(ImageUploadActivity.this, "第"+requestCode+"张图片", 0).show();
		//	System.out.println("imageMap"+imageMap.size());
		//	System.out.println("filePathMap"+filePathMap.size());
			adapter.notifyDataSetChanged();
		}
		super.onActivityResult(requestCode, resultCode, data);
	}
	
	private void toUploadFile()
	{
		progressDialog.setMessage("正在上传文件...");
		progressDialog.show();
		final String fileKey = "upload";
		final UploadUtil uploadUtil = UploadUtil.getInstance();;
		uploadUtil.setOnUploadProcessListener(new OnUploadProcessListener() {
			
			@Override
			public void onUploadProcess(int uploadSize) {
				Message msg = Message.obtain();
				msg.what = UPLOAD_IN_PROCESS;
				msg.arg1 = uploadSize; 
				handler.sendMessage(msg);
			}
			
			@Override
			public void onUploadDone(int responseCode, String message) {

				progressDialog.dismiss();
				Message msg = Message.obtain();
				msg.what = UPLOAD_FILE_DONE;
				msg.arg1 = responseCode;
				msg.obj = message;
				handler.sendMessage(msg);
			}
			
			@Override
			public void initUpload(int fileSize) {
				Message msg = Message.obtain();
				msg.what = UPLOAD_INIT_PROCESS;
				msg.arg1 = fileSize;
				handler.sendMessage(msg);
			}
		});  //设置监听器监听上传状态
		
		final Map<String, String> params = new HashMap<String, String>();
		params.put("dpnumber", "13800001111");
		
		System.out.println(filePathMap.size());
		
	
		new Thread(new Runnable() {
			 int i = 0;
			@Override
			public void run() {
			
					final boolean uploadFile = uploadUtil.uploadFile(filePathMap,fileKey,requestURL,params);
			
					runOnUiThread(new Runnable() {
						
						@Override
						public void run() {
							if(uploadFile) {
								Toast.makeText(ImageUploadActivity.this, "上传成功", 0).show();
								progressDialog.dismiss();
							} else {
								Toast.makeText(ImageUploadActivity.this, "上传失败", 0).show();
								progressDialog.dismiss();
							}
							
						}
					});
					
				}	
				
			
		}).start();
			
				
			
			
		}
		
	}


	

选择照片界面程序:

package com.qian.pos;

import com.qian.servletasynchttp.R;

import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.Toast;



public class SelectPicActivity extends Activity implements OnClickListener{

	
	public static final int SELECT_PIC_BY_TACK_PHOTO = 1;
	
	public static final int SELECT_PIC_BY_PICK_PHOTO = 2;
	
	
	public static final String KEY_PHOTO_PATH = "photo_path";
	
	private static final String TAG = "SelectPicActivity";
	
	private LinearLayout dialogLayout;
	private Button takePhotoBtn,pickPhotoBtn,cancelBtn;

	/**获取到的图片路径*/
	private String picPath;
	
	private Intent lastIntent ;
	
	private Uri photoUri;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.select_pic_layout);
		initView();
	}
	/**
	 * 初始化载入View
	 */
	private void initView() {
		dialogLayout = (LinearLayout) findViewById(R.id.dialog_layout);
		dialogLayout.setOnClickListener(this);
		takePhotoBtn = (Button) findViewById(R.id.btn_take_photo);
		takePhotoBtn.setOnClickListener(this);
		pickPhotoBtn = (Button) findViewById(R.id.btn_pick_photo);
		pickPhotoBtn.setOnClickListener(this);
		cancelBtn = (Button) findViewById(R.id.btn_cancel);
		cancelBtn.setOnClickListener(this);
		
		lastIntent = getIntent();
	}

	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.dialog_layout:
			finish();
			break;
		case R.id.btn_take_photo:
			takePhoto();
			break;
		case R.id.btn_pick_photo:
			pickPhoto();
			break;
		default:
			finish();
			break;
		}
	}

	/**
	 * 拍照获取图片
	 */
	private void takePhoto() {
		//运行拍照前,应该先推断SD卡是否存在
		String SDState = Environment.getExternalStorageState();
		if(SDState.equals(Environment.MEDIA_MOUNTED))
		{
			
			Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//"android.media.action.IMAGE_CAPTURE"
			/***
			 * 须要说明一下。下面操作使用照相机拍照,拍照后的图片会存放在相冊中的
			 * 这里使用的这样的方式有一个优点就是获取的图片是拍照后的原图
			 * 假设不有用ContentValues存放照片路径的话。拍照后获取的图片为缩略图不清晰
			 */
			ContentValues values = new ContentValues();  
			photoUri = this.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);  
			intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, photoUri);
			/**-----------------*/
			startActivityForResult(intent, SELECT_PIC_BY_TACK_PHOTO);
		}else{
			Toast.makeText(this,"内存卡不存在", Toast.LENGTH_LONG).show();
		}
	}

	/***
	 * 从相冊中取图片
	 */
	private void pickPhoto() {
		Intent intent = new Intent();
		intent.setType("image/*");
		intent.setAction(Intent.ACTION_GET_CONTENT);
		startActivityForResult(intent, SELECT_PIC_BY_PICK_PHOTO);
	}
	
	@Override
	public boolean onTouchEvent(MotionEvent event) {
		finish();
		return super.onTouchEvent(event);
	}
	
	
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if(resultCode == Activity.RESULT_OK)
		{
			doPhoto(requestCode,data);
		}
		super.onActivityResult(requestCode, resultCode, data);
	}
	
	/**
	 * 选择图片后,获取图片的路径
	 * @param requestCode
	 * @param data
	 */
	private void doPhoto(int requestCode,Intent data)
	{
		if(requestCode == SELECT_PIC_BY_PICK_PHOTO )  //从相冊取图片,有些手机有异常情况,请注意
		{
			if(data == null)
			{
				Toast.makeText(this, "选择图片文件出错", Toast.LENGTH_LONG).show();
				return;
			}
			photoUri = data.getData();
			if(photoUri == null )
			{
				Toast.makeText(this, "选择图片文件出错", Toast.LENGTH_LONG).show();
				return;
			}
		}
		String[] pojo = {MediaStore.Images.Media.DATA};
		Cursor cursor = managedQuery(photoUri, pojo, null, null,null);   
		if(cursor != null )
		{
			int columnIndex = cursor.getColumnIndexOrThrow(pojo[0]);
			cursor.moveToFirst();
			picPath = cursor.getString(columnIndex);
			cursor.close();
		}
		Log.i(TAG, "imagePath = "+picPath);
		if (picPath != null
				/*&& (picPath.endsWith(".png") || picPath.endsWith(".PNG")
						|| picPath.endsWith(".jpg") || picPath.endsWith(".JPG")
						|| picPath.endsWith(".JPG") || picPath
							.endsWith(".JPEG"))*/)
		{
			lastIntent.putExtra(KEY_PHOTO_PATH, picPath);
			setResult(Activity.RESULT_OK, lastIntent);
			finish();
		}else{
			//Toast.makeText(this, picPath, Toast.LENGTH_LONG).show();
			Toast.makeText(this, "选择图片文件不对", Toast.LENGTH_LONG).show();
		}
	}
}



接下来是程序的核心部分UploadUtil.java

主要实现了图片的上传,上传过程的初始化监听和上传完毕的监听,还有上传耗时的计算。设置的回调接口监听器在主界面能够设置,获得必要的信息。

实现的批量的过程也在当中。使用HashMap将各个图片的路径保存在当中,然后HashMap的迭代器实现循环上传。批量上传的过程中,假设图片过大会抛出异常,载入bitmap手机太多内存,没来得及释放又要载入还有一张图片,单张原图上传能够实现。但不符合市场需求,一般都是批量上传。

程序的具体运行流程就不具体说了。关键部分凝视已经写好了。

package com.qian.pos.util;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.UUID;

import android.content.Context;
import android.util.Log;
import android.widget.Toast;


public class UploadUtil {
	private static UploadUtil uploadUtil;
	private static final String BOUNDARY =  UUID.randomUUID().toString(); // 边界标识 随机生成
	private static final String PREFIX = "--";
	private static final String LINE_END = "\r\n";
	private static final String CONTENT_TYPE = "multipart/form-data"; // 内容类型
	private UploadUtil() {

	}

	/**
	 * 单例模式获取上传工具类
	 * @return
	 */
	public static UploadUtil getInstance() {
		if (null == uploadUtil) {
			uploadUtil = new UploadUtil();
		}
		return uploadUtil;
	}

	private static final String TAG = "UploadUtil";
	private int readTimeOut = 10 * 10000; // 读取超时
	private int connectTimeout = 10 * 10000; // 超时时间
	/***
	 * 请求使用多长时间
	 */
	private static int requestTime = 0;
	
	private static final String CHARSET = "utf-8"; // 设置编码

	/***
	 * 上传成功
	 */
	public static final int UPLOAD_SUCCESS_CODE = 1;
	/**
	 * 文件不存在
	 */
	public static final int UPLOAD_FILE_NOT_EXISTS_CODE = 2;
	/**
	 * server出错
	 */
	public static final int UPLOAD_SERVER_ERROR_CODE = 3;
	protected static final int WHAT_TO_UPLOAD = 1;
	protected static final int WHAT_UPLOAD_DONE = 2;
	


	public boolean uploadFile(HashMap<Integer,String> filePathMap, String fileKey, String RequestURL,
			Map<String, String> param) {
		String result = null;
		requestTime= 0;
		String fileName = "";
		long requestTime = System.currentTimeMillis();
		long responseTime = 0;

		try {
			
//			conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
		
			Iterator<Integer> iterator = filePathMap.keySet().iterator();
			boolean isOk = true;
			System.out.println("filePathMap.size()"+filePathMap.size());
			while(iterator.hasNext()) {
				URL url = new URL(RequestURL);
				HttpURLConnection conn = (HttpURLConnection) url.openConnection();
				conn.setReadTimeout(readTimeOut);
				conn.setConnectTimeout(connectTimeout);
				conn.setDoInput(true); // 同意输入流
				conn.setDoOutput(true); // 同意输出流
				conn.setUseCaches(false); // 不同意使用缓存
				conn.setRequestMethod("POST"); // 请求方式
				conn.setRequestProperty("Charset", CHARSET); // 设置编码
				conn.setRequestProperty("connection", "keep-alive");
				conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
				conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);
				Integer next = iterator.next();
				System.out.println(next+"");
				String filepath = filePathMap.get(next);
				switch (next.intValue()) {
				case 0:
					fileName = "IDPositive";
					break;
				case 1:
					fileName = "IDNative";
					break;
				case 2:
					fileName = "BusinessLicense";
					break;
				case 3:
					fileName = "Outdoor";
					break;
				case 4:
					fileName = "Indoor";
					break;
				default:
					break;
				}
				DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
				StringBuffer sb = null;
				String params = "";
			
				if (param != null && param.size() > 0) {
					Iterator<String> it = param.keySet().iterator();
					while (it.hasNext()) {
						sb = null;
						sb = new StringBuffer();
						String key = it.next();
						String value = param.get(key);
						sb.append(PREFIX).append(BOUNDARY).append(LINE_END);
						sb.append("Content-Disposition: form-data; name=\"").append(key).append("\"").append(LINE_END).append(LINE_END);
						sb.append(value).append(LINE_END);
						params = sb.toString();
						Log.i(TAG, key+"="+params+"##");
						dos.write(params.getBytes());
//						dos.flush();
					}
				}
				
				sb = null;
				params = null;
				sb = new StringBuffer();
				/**
				 * 这里重点注意: name里面的值为server端须要key 仅仅有这个key 才干够得到相应的文件
				 * filename是文件的名字,包括后缀名的 比方:abc.png
				 */
				sb.append(PREFIX).append(BOUNDARY).append(LINE_END);
				sb.append("Content-Disposition:form-data; name=\"" + fileKey
						+ "\"; filename=\"" + fileName + "\"" + LINE_END);
						//+ "\"; filename=\"" + file.getName() + "\"" + LINE_END);
				sb.append("Content-Type:image/pjpeg" + LINE_END); // 这里配置的Content-type非常重要的 ,用于server端辨别文件的类型的
				sb.append(LINE_END);
				params = sb.toString();
				sb = null;
				
				//Log.i(TAG, filepath.getName()+"=" + params+"##");
				//Log.i(TAG, );
				dos.write(params.getBytes());
				/**上传文件*/
				InputStream is = new FileInputStream(filepath);
				onUploadProcessListener.initUpload((int)filepath.length());
				byte[] bytes = new byte[1024];
				int len = 0;
				int curLen = 0;
				while ((len = is.read(bytes)) != -1) {
					curLen += len;
					dos.write(bytes, 0, len);
					onUploadProcessListener.onUploadProcess(curLen);
				}
				is.close();
				is = null;
				dos.write(LINE_END.getBytes());
				byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END).getBytes();
				dos.write(end_data);
				dos.flush();
				dos.close();
				dos = null;
//				dos.write(tempOutputStream.toByteArray());
				/**
				 * 获取响应码 200=成功 当响应成功,获取响应的流
				 */
				int res = conn.getResponseCode();
				responseTime = System.currentTimeMillis();
				this.requestTime = (int) ((responseTime-requestTime)/1000);
				
				Log.e(TAG, "response code:" + res);
				
				if (res == 200) {
					Log.e(TAG, "request success");
					InputStream input = conn.getInputStream();
					StringBuffer sb1 = new StringBuffer();
					int ss;
					while ((ss = input.read()) != -1) {
						sb1.append((char) ss);
					}
					result = sb1.toString();
					Log.e(TAG, "result : " + result);
					sb1 = null;
					if(fileName == "Indoor") {
						sendMessage(UPLOAD_SUCCESS_CODE, "上传结果:"+ result);
					}
					
					conn.disconnect();
					//return true;
				} else {
					Log.e(TAG, "request error");
					sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败:code=" + res);
					conn.disconnect();
					isOk = false;
				
				}
				
				
			}
			return isOk;
		} catch (MalformedURLException e) {
			sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败:error=" + e.getMessage());
			e.printStackTrace();
			
			return false;
		} catch (IOException e) {
			sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败:error=" + e.getMessage());
			e.printStackTrace();
			return false;
		}
		
	}

	
	private void sendMessage(int responseCode,String responseMessage)
	{
		onUploadProcessListener.onUploadDone(responseCode, responseMessage);
	}
	
	/**
	 * 以下是一个自己定义的回调函数。用到回调上传文件是否完毕
	 * 
	 * @author shimingzheng
	 * 
	 */
	public static interface OnUploadProcessListener {
	
		void onUploadDone(int responseCode, String message);
		
		void onUploadProcess(int uploadSize);
		
		void initUpload(int fileSize);
	}
	private OnUploadProcessListener onUploadProcessListener;
	
	

	public void setOnUploadProcessListener(
			OnUploadProcessListener onUploadProcessListener) {
		this.onUploadProcessListener = onUploadProcessListener;
	}

	public int getReadTimeOut() {
		return readTimeOut;
	}

	public void setReadTimeOut(int readTimeOut) {
		this.readTimeOut = readTimeOut;
	}

	public int getConnectTimeout() {
		return connectTimeout;
	}

	public void setConnectTimeout(int connectTimeout) {
		this.connectTimeout = connectTimeout;
	}
	/**
	 * 获取上传使用的时间
	 * @return
	 */
	public static int getRequestTime() {
		return requestTime;
	}
	
	public static interface uploadProcessListener{
		
	}

	
	
	
}


































































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