Android Retrofit 2.0框架上传图片，视频解决方案

本文为大家分享了 Android Retrofit 2.0框架上传图片解决方案，具体内容如下

1.单张图片的上传

/**
   * 上传一张图片
   * @param description
   * @param imgs
   * @return
   */
  @Multipart
  @POST("/upload")
  Call uploadImage(@Part("fileName") String description,
         @Part("file\"; filename=\"image.png\"")RequestBody imgs);

2.多张图片的上传

/**
  * 上传三张图片
  * @param description
  * @param imgs
  * @param imgs1
  * @param imgs3
  * @return
  */
  @Multipart
  @POST("/upload")
  Call uploadImage(@Part("fileName") String description,
        @Part("file\"; filename=\"image.png\"")RequestBody imgs,
        @Part("file\"; filename=\"image.png\"")RequestBody imgs1,
        @Part("file\"; filename=\"image.png\"")RequestBody imgs3);

注意：目前是提供传3张，要想多上传目前我发现的方法就是想要多传一张，就多增加一个参数
@Part("file\"; filename=\"image.png\"")RequestBody imgs，以此类推。

大家看到上面觉得写法很漏，但是用于能力有限，只能想到这样。用Java中的可变参数解决之后，就只能传一张。不能多张。

@Multipart
  @POST("/upload")
  Call uploadImage(@Part("fileName") String description,
        @Part("file\"; filename=\"image.png\"")RequestBody ...imgs);

 调用：
Call call = apiManager.uploadImage( m[0],requestBody1,requestBody2,null); 

这样写看上去很是高端，不幸的是只能传一张

3.最后是实现胡过程
3.1创建FileUploadService接口

public interface FileUploadService {
 /**
  * 上传一张图片
  * @param description
  * @param imgs
  * @return
  */
 @Multipart
 @POST("/upload")
 Call uploadImage(@Part("fileName") String description,
        @Part("file\"; filename=\"image.png\"")RequestBody imgs);
 
 /**
  * 上传三张图片
  * @param description
  * @param imgs
  * @param imgs1
  * @param imgs3
  * @return
  */
 @Multipart
 @POST("/upload")
 Call uploadImage(@Part("fileName") String description,
        @Part("file\"; filename=\"image.png\"")RequestBody imgs,
        @Part("file\"; filename=\"image.png\"")RequestBody imgs1,
        @Part("file\"; filename=\"image.png\"")RequestBody imgs3);
}

 3.2创建Retrofit对象

private static final Retrofit sRetrofit = new Retrofit .Builder()
   .baseUrl(ENDPOINT)
   .addConverterFactory(GsonConverterFactory.create())
//   .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) // 使用RxJava作为回调适配器
   .build();
 
 private static final FileUploadService apiManager = sRetrofit.create(FileUploadService.class);

 3.3调用上传的方法

public static void upload(String path){
 
 String descriptionString = "hello, this is description speaking";
 
 String[] m = new String[2];
 m[0]= "share.png";
 m[1]= "Screenshot_20160128-140709.png";
 File[] ssssss= new File[2];
 File file1 = new File("/storage/emulated/0/sc/share.png");
 File file = new File("/storage/emulated/0/Pictures/ScreenShots/Screenshot_20160128-140709.png");
 ssssss[0]=file;
 ssssss[0]=file1;
 RequestBody requestBody[] = new RequestBody[3];
 RequestBody requestBody1 =
   RequestBody.create(MediaType.parse("multipart/form-data"), file);
 RequestBody requestBody2 =
   RequestBody.create(MediaType.parse("multipart/form-data"), file1);
 requestBody[0]=requestBody1;
 requestBody[1]=requestBody2;
 Call call = apiManager.uploadImage( m[0],requestBody1,requestBody2,null);
 call.enqueue(new Callback() {
  @Override
  public void onResponse(Response response, Retrofit retrofit) {
   Log.v("Upload", response.message());
   Log.v("Upload", "success");
  }
 
  @Override
  public void onFailure(Throwable t) {
   Log.e("Upload", t.toString());
  }
 });
 
}

4.服务器段代码：
服务器用的是struts接收：

@Controller
public class GetToken extends ActionSupport {
   
/**
  *
  */
 private static final long serialVersionUID = 1L;
 private File[] file;
 private String[] fileName;
 public File[] getFile() {
  return file;
 }
 public void setFile(File[] file) {
  this.file = file;
 }
 public String[] getFileName() {
  return fileName;
 }
 public void setFileName(String[] fileName) {
  this.fileName = fileName;
 }
  
 @Action("/upload")
 public void login() {
  System.out.println("------"+Arrays.toString(file));
  System.out.println("------"+Arrays.toString(fileName));
 }
   
   
   
}

上传视频，随便找的一个接口，只是举个例子而已

@Multipart
    @POST("Fmsg_add_video.asp")
    Observable newVideoAdd(@retrofit.http.Part("token") RequestBody token,
                                       @retrofit.http.Part("role") RequestBody role,
                                       @retrofit.http.Part("pk_image_news_image_id") RequestBody pk_image_news_id,
                                       @retrofit.http.PartMap Map params);

 public Observable addVideo(String role, String pk_image_news_id, String path, String videoName) {
        RequestBody token = RequestBody.create(null, getPreferencesHelper().getAccessToken());
        RequestBody roleR = RequestBody.create(null, role);
        RequestBody pk_image_news_idR = RequestBody.create(null, pk_image_news_id);
        File file = new File(path);
        RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
        Map video = new HashMap<>();
        String key = "file1\";filename=\"" + videoName;
        video.put(key, requestBody);
        return mRibotService.newVideoAdd(token, roleR, pk_image_news_idR, video);
    }

以上就是本文的全部内容，希望对大家的学习有所帮助。