Android使用Retrofit上传单个文件以及多个文件
16lz
2022-03-18
*封装RetrofitManager
public class RetrofitManager { private static RetrofitManager retrofitManager; private Retrofit retrofit; private RetrofitManager() {}// 使用单例模式封装 public static RetrofitManager getInstance() { if (retrofitManager == null) { synchronized (RetrofitManager.class) { if (retrofitManager == null) { retrofitManager = new RetrofitManager(); } } } return retrofitManager; } public Retrofit getRetrofit() { if (retrofit == null) { // 添加日志拦截器 HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor(); // 拦截等级为body(可以打印出完整的网络请求) httpLoggingInterceptor.level(HttpLoggingInterceptor.Level.BODY);// 使用OkHttpClient OkHttpClient okHttpClient = new OkHttpClient.Builder() .addInterceptor(httpLoggingInterceptor) .connectTimeout(1, TimeUnit.MINUTES) .readTimeout(1,TimeUnit.MINUTES) .build();// 创建出Retrofit retrofit = new Retrofit.Builder() // 使用Gson转换工厂 .addConverterFactory(GsonConverterFactory.create()).addCallAdapterFactory(RxJava2CallAdapterFactory.create())// 基础Url .baseUrl("http://172.81.227.127:8088/") .client(okHttpClient) .build(); } return retrofit; }}使用Body级别的日志拦截器效果图，可以清晰看出请求方式、接口地址、入参、返回数据等
一、上传单一文件
1.在Api接口中声明方法
@Multipart@POST("fileUpload")Observable<String> upload(@Part List<MultipartBody.Part> parts);2.实例化api接口
// 实例化api接口Api api = RetrofitManager.getInstance().getRetrofit().create(Api.class);3.构建参数
File file = new File("/sdcard/DCIM/Camera/IMG_20191121_010329.jpg");RequestBody body = RequestBody.create(MediaType.parse("multipart/form-data"), file);MultipartBody multipartBody = new MultipartBody.Builder() .addFormDataPart("file", "IMG.jpg", body) .setType(MultipartBody.FORM) .build();4.提交请求
api.upload(parts) .observeOn(AndroidSchedulers.mainThread()) .subscribeOn(Schedulers.io()) .subscribe(new Observer<String>() { @Override public void onNext(String s) { Log.i("--",s); // 请求结果 } @Override public void onError(Throwable e) { } @Override public void onComplete() { } });二、上传多个文件
1.在Api接口中声明方法
@Multipart@POST("fileUploadMore")Observable<String> uploadMore(@PartMap Map<String, List<MultipartBody.Part>> multiMap);2.实例化api接口
// 实例化api接口Api api = RetrofitManager.getInstance().getRetrofit().create(Api.class);3.构建参数
File file = new File("/sdcard/DCIM/Camera/IMG_20191121_010329.jpg");RequestBody body = RequestBody.create(MediaType.parse("multipart/form-data"), file);MultipartBody multipartBody1 = new MultipartBody.Builder() .addFormDataPart("file", "sss1.jpg", body) .setType(MultipartBody.FORM) .build();MultipartBody multipartBody2 = new MultipartBody.Builder() .addFormDataPart("file", "sss2.jpg", body) .setType(MultipartBody.FORM) .build();MultipartBody multipartBody3 = new MultipartBody.Builder() .addFormDataPart("file", "sss3.jpg", body) .setType(MultipartBody.FORM) .build();MultipartBody multipartBody4 = new MultipartBody.Builder() .addFormDataPart("file", "sss4.jpg", body) .setType(MultipartBody.FORM) .build();// 把所有文件放入map集合中Map<String, List<MultipartBody.Part>> parts = new HashMap<>();parts.put("f1",multipartBody1.parts());parts.put("f2",multipartBody2.parts());parts.put("f3",multipartBody3.parts());parts.put("f4",multipartBody4.parts());4.提交请求
api.uploadMore(parts) .observeOn(AndroidSchedulers.mainThread()) .subscribeOn(Schedulers.io()) .subscribe(new Observer<String>() { @Override public void onNext(String s) { Log.i("--",s); // 请求结果 } @Override public void onError(Throwable e) { } @Override public void onComplete() { } });更多相关文章
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