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)); } } 以上就是本文的全部内容，希望对大家的学习有所帮助。
