Android端使用retrofit上传多张图片,后端使用Php接收图片(包含前后端代码)
程序员文章站
2022-05-01 17:07:31
...
1.先列出Android端使用的library:
dependencies { ... compile 'com.jakewharton:butterknife:7.0.1' compile 'com.squareup:otto:1.3.5' compile 'cn.finalteam:galleryfinal:1.4.8.4' compile 'com.squareup.retrofit:retrofit:1.9.0' compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0' compile 'com.squareup.okhttp:okhttp:2.0.0' compile 'com.github.bumptech.glide:glide:3.6.1' compile 'com.jcodecraeer:xrecyclerview:1.2.6' compile 'com.baoyz.actionsheet:library:1.1.5' compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.5' compile 'io.reactivex:rxjava:1.0.6' compile 'io.reactivex:rxandroid:0.23.0' compile files('libs/fastjson-1.2.7.jar')}
Android端代码:
public interface ApiService {// 上传一个文件/图片 @Multipart @POST("/UploadFileDemo/android_upload_file/upload.php") ObservableuploadFile(@Part("uploadfile") TypedFile file);// 上传多张图片 @POST("/UploadFileDemo/android_upload_file/uploads.php") Observable uploadFiles(@Body MultipartTypedOutput multipartTypedOutput);}
public class Client { public static String API_URL = Constant.API_URL; public static ExecutorService mExecutorService; private static ApiService instance; public static ApiService getServiceClient() { if (instance == null) { synchronized (Client.class) { if (instance == null) { OkHttpClient okHttpClient = new OkHttpClient(); okHttpClient.setCookieHandler(new MyCookieManager()); okHttpClient.setReadTimeout(100, TimeUnit.SECONDS); okHttpClient.setConnectTimeout(100, TimeUnit.SECONDS); RestAdapter.Builder restAdapter = new RestAdapter.Builder(); restAdapter.setRequestInterceptor(new ApiHeaders()); restAdapter.setEndpoint(API_URL); restAdapter.setClient(new OkClient(okHttpClient)); restAdapter.setLogLevel(RestAdapter.LogLevel.FULL); mExecutorService = Executors.newCachedThreadPool(); instance = restAdapter.build().create(ApiService.class); } } } return instance; } public static void stopAll() { ListpendingAndOngoing = mExecutorService.shutdownNow(); } static class MyCookieManager extends CookieManager { @Override public void put(URI uri, Map > stringListMap) throws IOException { super.put(uri, stringListMap); if (stringListMap != null && stringListMap.get("Set-Cookie") != null) for (String string : stringListMap.get("Set-Cookie")) { String cookieValue = string.substring(0, string.indexOf("\"; ") + 1); if (string.contains("A2=\"")) { //保存到应用 } if (string.contains("PB3_SESSION=\"")) { ////保存到应用 } } } } static class ApiHeaders implements RequestInterceptor { @Override public void intercept(RequestFacade request) { request.addHeader("User-Agent", "Mozilla/5.0 (Linux; U; Android 4.1.1; zh-cn; HTC One X - 4.1.1 - API 16 - 720x1280 Build/JRO03S) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30"); request.addHeader("Accept", "*/*"); request.addHeader("Accept-Language", "zh-cn,zh"); } }}
上传关键代码:
//使用MultipartTypedOutput类来上传多张图片 public void uploadFiles(Listpaths) { MultipartTypedOutput multipartTypedOutput = new MultipartTypedOutput(); for (String imgPath : paths){ //注意“uploadfile[]”一定要带“[]”,表明上传的是数组,也就是多张图片,不能写“uploadfile” multipartTypedOutput.addPart("uploadfile[]", new TypedFile("", new File(imgPath))); } mApi.uploadFiles(multipartTypedOutput) .subscribeOn(Schedulers.computation()) .subscribe(response -> handleUploadFile(response), error -> handleFailure(error)); } private void handleUploadFile(Response response) { System.out.println(response.getUrl()); try { InputStream in = response.getBody().in(); String responseString = inputStream2String(in); Log.i("AAA", responseString); //解析json数据 //otto事件传递 mBus.post(responseString); } catch (IOException e) { e.printStackTrace(); }}//接收事件代码 @Subscribe //需要注解@Subscribe ,表明在这个函数接收数据public void uploadFileResponse(String response) { Message msg = JSON.parseObject(response, Message.class); List imgUrls = msg.getImgUrls(); if (msg.getCode() == 1) { if (choosePhotoListAdapter == null) { choosePhotoListAdapter = new ChoosePhotoListAdapter(this, null, imgUrls); lvPhotoShow.setAdapter(choosePhotoListAdapter); } choosePhotoListAdapter.notifyDataSetChanged(); }}
Php端代码:
//初学php,写的比较简单,不太健壮,像图片是否已经上传过,都没有判断,大家自己补充啊^_^ $error) { if ($error == UPLOAD_ERR_OK) { $tmp_name = $_FILES["uploadfile"]["tmp_name"][$key]; $name = $_FILES["uploadfile"]["name"][$key]; $uploadfile = $base_path . $name; $isSave = move_uploaded_file($tmp_name, $uploadfile); if ($isSave){ $imgs[]=$uploadfile; } }}if ($isSave) { $array = array("code" => "1", "message" =>"上传图片成功" , "imgUrls" => $imgs); echo json_encode($array);} else { $array = array("code" => "0", "message" => "上传图片失败," . $_FILES ['uploadfile'] ['error'] , "imgUrls" => $imgs); echo json_encode($array);}
其实上传成功的关键是part需要带uploadfile[] ,【 multipartTypedOutput.addPart("uploadfile[]", new TypedFile("", new File(imgPath)));】我在这个地方失败了几十次,无意中看见html网页批量上传的name属性中带了[],我就试了试,果然成功了。
代码资源下载
Paste_Image.png
Paste_Image.png
超级简单的Android Studio jni 实现(无需命令行)
下一篇: thinkphp如何写更新缓存功能