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我无法理解如何使用 POST 数据将图像文件从我的 android 设备上传到 Laravel API，我已经使用 android-asynchronous-http-client 向 API 发送了一些文本数据，但它不适用于图像文件。API 端工作正常我使用 POSTMAN 对其进行了测试，但在 android 设备上出现错误status code: 500 Internal Server Error

安卓部分

            RequestParams ComplaintsDataRequestParams = new RequestParams();

            ComplaintsDataRequestParams.put("Complaint_Subject", complaintsSubject.getText().toString());
            ComplaintsDataRequestParams.put("Complaint_Details", complaintsDetails.getText().toString());
            ComplaintsDataRequestParams.put("Complaint_Address", complaintAddress.getText().toString());
            ComplaintsDataRequestParams.put("Username", HomeActivity.home_username);
            ComplaintsDataRequestParams.put("Complainant_CNIC", HomeActivity.user_cnic);
            ComplaintsDataRequestParams.put("Complaint_id", uniqueComplaintID);
            ComplaintsDataRequestParams.put("User_Location", user_complete_address + "-" + lat + "," + lng);

            if (ImageEvidence1 != null) {
                evidenceID1 = uniqueComplaintID + "-" + System.currentTimeMillis();
                ComplaintsDataRequestParams.put("Evidence_ID1", "YES");
                ComplaintsDataRequestParams.put("Evidence_ID1_name", evidenceID1);
                ComplaintsDataRequestParams.put("Evidence_ID1_data", ImageEvidence1);
            }
            if (ImageEvidence2 != null) {
                evidenceID2 = uniqueComplaintID + "-" + System.currentTimeMillis();
                ComplaintsDataRequestParams.put("Evidence_ID2", "YES");
                ComplaintsDataRequestParams.put("Evidence_ID2_name", evidenceID2);
                ComplaintsDataRequestParams.put("Evidence_ID2_data", ImageEvidence2);
            }
            if (ImageEvidence3 != null) {
                evidenceID3 = uniqueComplaintID + "-" + System.currentTimeMillis();
                ComplaintsDataRequestParams.put("Evidence_ID3", "YES");
                ComplaintsDataRequestParams.put("Evidence_ID3_name", evidenceID3);
                ComplaintsDataRequestParams.put("Evidence_ID3_data", ImageEvidence3);
            }



Complaints_REST_API_Client.POST("?action=store", ComplaintsDataRequestParams, new AsyncHttpResponseHandler() {
            @Override
            public void onSuccess(int statusCode, Header[] headers, byte[] response) {
                // called when response HTTP status is "200 OK"
                complaint_confirmation();
                Log.d("newComplaintActivity", "statusCode " + statusCode);
            }

            @Override
            public void onFailure(int statusCode, Header[] headers, byte[] errorResponse, Throwable error) {
                // called when response HTTP status is "4XX" (eg. 401, 403, 404)
                submittingComplaint.dismiss();
                Log.d("newComplaintActivity", "statusCode " + statusCode);
                Toast.makeText(getContext(), "Exception: " + error.getMessage(), Toast.LENGTH_SHORT).show();
            }

  });

这ImageEvidence是一个Uri类型变量，用于imageView.setImageURI(ImageEvidence)并且evidenceID只是图像文件的名称。

LARAVEL API 部分

            Complaint::create([
                'title' => $request->input('Complaint_Subject'),
                'description' => $request->input('Complaint_Details'),
                'address' => $request->input('Complaint_Address'),
                'firebase_user_id' => $request->input('Username'),
                'firebase_user_cnic' => $request->input('Complainant_CNIC'),
                'firebase_complaint_id' => $request->input('Complaint_id'),
                'firebase_user_location' => $request->input('User_Location'),
                'status' => 'pending'
            ]);

            if ($request->input('Evidence_ID1') == "YES")
                Evidence::create([
                    'evidence_name' => $request->input('Evidence_ID1_name'),
                    'eivdence_image' => $request->file('Evidence_ID1_data')->store('public/evidences'),
                    'complaint_id' => $request->input('Complaint_id')
                ]);

            if ($request->input('Evidence_ID2') == "YES")
                Evidence::create([
                    'evidence_name' => $request->input('Evidence_ID2_name'),
                    'eivdence_image' => $request->file('Evidence_ID2_data')->store('public/evidences'),
                    'complaint_id' => $request->input('Complaint_id')
                ]);

            if ($request->input('Evidence_ID3') == "YES")
                Evidence::create([
                    'evidence_name' => $request->input('Evidence_ID3_name'),
                    'eivdence_image' => $request->file('Evidence_ID3_data')->store('public/evidences'),
                    'complaint_id' => $request->input('Complaint_id')
                ]);

请告诉我应该使用哪个库来发送图像文件和 POST 数据。

4

1 回答 1

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我通过一个非常简单的快捷方法解决了我的问题

因为我在 API 端请求文件，但我正在发送 Uri ie ImageEvidence1。所以简单的破解是我得到了 URI 的绝对路径并将其放入文件中，然后

File file = new File(new URI(ImageEvidence1.getPath()));
ComplaintsDataRequestParams.put("Evidence_ID3_data", file);

就是这样。

于 2020-04-22T05:38:53.903 回答