Android Retrofit 2.0框架上传图片解决方案（一张与多张的处理）

 标题： Android Retrofit 2.0框架上传图片解决方案（一张与多张的处理）

 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：

@Controllerpublic 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));}}

上传胡结果：

------[\tmp\upload__4348b3f0_1528c3d9735__8000_00000038.tmp,\tmp\upload__4348b3f0_1528c3d9735__8000_00000040.tmp]
------["share.png"]
2016-1-29 16:59:04 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Removing file file \tmp\upload__4348b3f0_1528c3d9735__8000_00000038.tmp

2016-1-29 16:59:04 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Removing file file \tmp\upload__4348b3f0_1528c3d9735__8000_00000040.tmp

  总共就这些吧。有问题大家在下面说。QQ1561281670

代码下载地址

追加：

多图上传的一种简单那写法：

</pre><pre name="code" class="java">public static void uploadMany(ArrayList<String> paths,String desp){        Map<String,RequestBody> photos = new HashMap<>();        if (paths.size()>0) {            for (int i=0;i<paths.size();i++) {                photos.put("photos"+i+"\"; filename=\"icon.png",  RequestBody.create(MediaType.parse("multipart/form-data"), new File(paths.get(i))));            }        }        Call<String> stringCall = apiManager.uploadImage(desp, photos);        stringCall.enqueue(new Callback<String>() {            @Override            public void onResponse(Call<String> call, Response<String> response) {                Log.d(TAG, "onResponse() called with: " + "call = [" + call + "], response = [" + response + "]");            }            @Override            public void onFailure(Call<String> call, Throwable t) {                Log.d(TAG, "onFailure() called with: " + "call = [" + call + "], t = [" + t + "]");            }        });    }

这样洗是不是比上面的好多了。如果再有什么好的写法，请提出来。我在改进