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<String> 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<String> 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<String> uploadImage(@Part("fileName") String description,
@Part("file\"; filename=\"image.png\"")RequestBody ...imgs);

 调用：
Call<String> 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<String> 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<String> 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<String> call = apiManager.uploadImage( m[0],requestBody1,requestBody2,null);
call.enqueue(new Callback<String>() {
@Override
public void onResponse(Response<String> 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<JSONObject> 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<String, RequestBody> params);

public Observable<JSONObject> 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<String, RequestBody> 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。