Java 无法使用改装将阵列发布到服务器中

我试图用数组发布多个图像，但无法将其发送到服务器，因为它显示了一些错误

当我试图发送转换成位图的图像时，它会进入

onFailure

方法并显示如下错误

错误返回位图

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这是我的发帖方法

 private void PostInfo() {
        bitmap = ((BitmapDrawable) defoult.getDrawable()).getBitmap();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        byte[] imageBytes = baos.toByteArray();
        imageString = Base64.encodeToString(imageBytes, Base64.DEFAULT);
        ArrayList<String> filePaths = new ArrayList<>();
        filePaths.add(imageString);
        Log.d("strinimagess",imageString);
        //filePaths.add("file:///storage/emulated/0/DCIM/Camera/IMG_20191207_131304.jpg");
      // filePaths.add("file:///storage/emulated/0/DCIM/Camera/IMG_20191207_131300.jpgg");
        MultipartBody.Builder builder = new MultipartBody.Builder();
        builder.setType(MultipartBody.FORM);
        builder.addFormDataPart("skill_years", nameField.getText().toString());
        builder.addFormDataPart("skill_where", nameField1.getText().toString());
        builder.addFormDataPart("about_work", nameField2.getText().toString());
        builder.addFormDataPart("skill_id", skill_id);
        builder.addFormDataPart("user_id", user_id);
        for (int i = 0; i < filePaths.size(); i++) {
            File file = new File(filePaths.get(i));
            builder.addFormDataPart("skill_images", file.getName(), RequestBody.create(MediaType.parse("multipart/form-data"), file));
        }
        MultipartBody requestBody = builder.build();
        jsonObject = new JsonObject();
        jsonObject.addProperty("skill_years", nameField.getText().toString());
        jsonObject.addProperty("skill_where", nameField1.getText().toString());
        jsonObject.addProperty("about_work", nameField2.getText().toString());
        jsonObject.addProperty("skill_id", skill_id);
        jsonObject.addProperty("user_id", user_id);
        jsonObject.addProperty("skill_images", String.valueOf(myImageList));
    RetrofitInterface jsonpost = ServiceGenerator.createService(RetrofitInterface.class,"http://littletreasure.org.in/");
    Call<InFo_Post> call = jsonpost.post(requestBody);
    call.enqueue(new Callback<InFo_Post>() {
        @Override
        public void onResponse(Call<InFo_Post> call, retrofit2.Response<InFo_Post> response) {
            if (response.isSuccessful()){
                Log.d("response", String.valueOf(response.body().getMsg()));
                Toast.makeText(Info.this, "success", Toast.LENGTH_SHORT).show();
            }
        }

        @Override
        public void onFailure(Call<InFo_Post> call, Throwable t) {
Log.d("Onfail",t.getMessage());
            Toast.makeText(Info.this, "failed", Toast.LENGTH_SHORT).show();
        }
    });

---

我编写了一个方法，该方法获取图像的路径数组并返回StringBase64的数组

private ArrayList<String> imagesBase64(ArrayList<String> filePathes){
    ArrayList<String> imagesBase64=new ArrayList<>();
    for (int i = 0; i <filePathes.size() ; i++) {
        Bitmap bm = BitmapFactory.decodeFile(filePathes.get(i));
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bm.compress(Bitmap.CompressFormat.JPEG, 100, baos); //bm is the bitmap object
        byte[] b = baos.toByteArray();
        String imgString = Base64.encodeToString(b, Base64.NO_WRAP);
        imagesBase64.add(imgString);
    }
    return imagesBase64;
}

专用ArrayList imagesBase64（ArrayList文件路径）{
ArrayList imagesBase64=新的ArrayList（）；
对于（inti=0；i您是否只有位图，或者您是否还有一个包含该图像的文件？
您可以尝试从数据创建MultypartBody

     private void sendFileToServer(String fileName) {
            File file = new File(fileName);
            RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);

            MultipartBody.Part body = MultipartBody.Part.createFormData("file", file.getName(), requestFile);
...
...
}

另外，不要忘记在WebService类中在post方法中添加注释@Multipart

 private void PostInfo() {
        bitmap = ((BitmapDrawable) defoult.getDrawable()).getBitmap();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        byte[] imageBytes = baos.toByteArray();
        imageString = Base64.encodeToString(imageBytes, Base64.DEFAULT);
        ArrayList<String> filePaths = new ArrayList<>();
        filePaths.add(imageString);
        Log.d("strinimagess",imageString);
        //filePaths.add("file:///storage/emulated/0/DCIM/Camera/IMG_20191207_131304.jpg");
      // filePaths.add("file:///storage/emulated/0/DCIM/Camera/IMG_20191207_131300.jpgg");
        MultipartBody.Builder builder = new MultipartBody.Builder();
        builder.setType(MultipartBody.FORM);
        builder.addFormDataPart("skill_years", nameField.getText().toString());
        builder.addFormDataPart("skill_where", nameField1.getText().toString());
        builder.addFormDataPart("about_work", nameField2.getText().toString());
        builder.addFormDataPart("skill_id", skill_id);
        builder.addFormDataPart("user_id", user_id);
        for (int i = 0; i < filePaths.size(); i++) {
            File file = new File(filePaths.get(i));
            builder.addFormDataPart("skill_images", file.getName(), RequestBody.create(MediaType.parse("multipart/form-data"), file));
        }
        MultipartBody requestBody = builder.build();
        jsonObject = new JsonObject();
        jsonObject.addProperty("skill_years", nameField.getText().toString());
        jsonObject.addProperty("skill_where", nameField1.getText().toString());
        jsonObject.addProperty("about_work", nameField2.getText().toString());
        jsonObject.addProperty("skill_id", skill_id);
        jsonObject.addProperty("user_id", user_id);
        jsonObject.addProperty("skill_images", String.valueOf(myImageList));
    RetrofitInterface jsonpost = ServiceGenerator.createService(RetrofitInterface.class,"http://littletreasure.org.in/");
    Call<InFo_Post> call = jsonpost.post(requestBody);
    call.enqueue(new Callback<InFo_Post>() {
        @Override
        public void onResponse(Call<InFo_Post> call, retrofit2.Response<InFo_Post> response) {
            if (response.isSuccessful()){
                Log.d("response", String.valueOf(response.body().getMsg()));
                Toast.makeText(Info.this, "success", Toast.LENGTH_SHORT).show();
            }
        }

        @Override
        public void onFailure(Call<InFo_Post> call, Throwable t) {
Log.d("Onfail",t.getMessage());
            Toast.makeText(Info.this, "failed", Toast.LENGTH_SHORT).show();
        }
    });

确保API可以处理多个文件。使用多部分文件列表设置接口类

Part还用于发送实际文件名

List parts=new ArrayList（）；
如果（photoUri！=null）{
增加（准备部分（“照片”，照片））；
}
RequestBody description=createPartFromString（“您好，我是description”）；
//创建上载服务客户端
FileUploadService=ServiceGenerator.createService（FileUploadService.class）；
//最后，执行请求
Call Call=service.uploadMultipleFileDynamic（描述，部分）；
call.enqueue（…）；

你可以参考这个官方链接：r

您可以使用multipart或base64两个解决方案发布它，具体取决于您的后端endpoint@yousef我想用base64发布它，但我不知道如何发送它，我该怎么做？我刚刚尝试了你的代码，但它显示了类似“java.lang.IllegalStateException:预期的BEGIN_对象，但在第1行第48列路径处是BEGIN_数组”的错误，那么信息发布呢请在我添加了信息后查看上面的模型类。您有什么帮助吗？我看到了信息后的模型。我认为数据模型不是模型InfoPost中的数组对象。我必须将位图base64发送到服务器。我不想使用多部分发送图像，我想发送多个图像的位图
@Multipart
@POST("upload")
Call<ResponseBody> uploadMultipleFilesDynamic(
        @Part("description") RequestBody description,
        @Part List<MultipartBody.Part> files);

 @NonNull
private RequestBody createPartFromString(String descriptionString) {  
    return RequestBody.create(
            okhttp3.MultipartBody.FORM, descriptionString);
}

@NonNull
private MultipartBody.Part prepareFilePart(String partName, Uri fileUri) {  

    File file = FileUtils.getFile(this, fileUri);
    RequestBody requestFile =
        RequestBody.create(
            MediaType.parse(getContentResolver().getType(fileUri)), 
            file
        );
    return MultipartBody.Part.createFormData(partName, file.getName(), requestFile);
}   

 List<MultipartBody.Part> parts = new ArrayList<>();
if (photoUri != null) {  
    parts.add(prepareFilePart("photo", photoUri));
}
RequestBody description = createPartFromString("hello, this is description speaking");

// create upload service client
FileUploadService service = ServiceGenerator.createService(FileUploadService.class);

// finally, execute the request
Call<ResponseBody> call = service.uploadMultipleFilesDynamic(description, parts);  
call.enqueue(...);