1.单图上传

首先 ApiServer ，要使用 Multipart 注解

//上传图片(私有接口)
  @POST("index.php/PrivateApi/Goods/uploadPic")
  @Multipart
  Observable<BaseListModel<String>> upLoadImg(@Part MultipartBody.Part parts);
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然后是 Presenter

 public void upLoadImg(String path) {
        File file = new File(path);
        RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
        MultipartBody.Part filePart = MultipartBody.Part.createFormData("headimg", file.getName(), requestFile);
        addDisposable(apiServer.upLoadImg(filePart), new BaseObserver<BaseListModel<String>>(baseView, true) {
            @Override
            public void onSuccess(BaseListModel<String> o) {
                baseView.onUpLoadSucc(o.getData());
            @Override
            public void onError(String msg) {
                baseView.showError(msg);
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成功后做个提示就好

2.多图上传

ApiServer

 @POST("index.php/PrivateApi/Goods/uploadPic")
    @Multipart
    Observable<BaseListModel<String>> upLoadImg(@Part MultipartBody.Part[] parts);
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Presenter

 public void upLoadImg(ArrayList<String> media) {
        if (media == null) {
            return;
        MultipartBody.Part[] parts = new MultipartBody.Part[media.size()];
        int cnt = 0;
        for (String m : media) {
            File file = new File(m);
            RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
            MultipartBody.Part filePart = MultipartBody.Part.createFormData("headimg[]", file.getName(), requestFile);
            parts[cnt] = filePart;
            cnt++;
        addDisposable(apiServer.upLoadImg(parts), new BaseObserver<BaseListModel<String>>(baseView, true) {
            @Override
            public void onSuccess(BaseListModel<String> o) {
                baseView.onUpLoadSucc(o.getData());
            @Override
            public void onError(String msg) {
                baseView.showError(msg);
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3.文件和普通参数混合

ApiServer

  //上传图片(私有接口)
    @POST("index.php/PrivateApi/Goods/uploadPic")
    @Multipart
    Observable<BaseListModel<String>> upLoadImg(@Part MultipartBody.Part[] parts, @Part("APP_KEY") RequestBody APP_KEY, @Part("APP_TOKEN") RequestBody APP_TOKEN);
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Presenter

 public void upLoadImg(ArrayList<String> media) {
        if (media == null) {
            return;
        MultipartBody.Part[] parts = new MultipartBody.Part[media.size()];
        int cnt = 0;
        for (String m : media) {
            File file = new File(m);
            RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
            MultipartBody.Part filePart = MultipartBody.Part.createFormData("headimg[]", file.getName(), requestFile);
            parts[cnt] = filePart;
            cnt++;
        RequestBody appkey = RequestBody.create(MediaType.parse("multipart/form-data"), AppConstant.APP_KEY);
        RequestBody apptoken = RequestBody.create(MediaType.parse("multipart/form-data"), UserImpl.getAppToken());
        addDisposable(apiServer.upLoadImg(parts, appkey, apptoken), new BaseObserver<BaseListModel<String>>(baseView, true) {
            @Override
            public void onSuccess(BaseListModel<String> o) {
                baseView.onUpLoadSucc(o.getData());
            @Override
            public void onError(String msg) {
                baseView.showError(msg);
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至此，使用 Retrofit 文件上传暂时告一段落。

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