multipartform-data

问题 I am composing an image in a canvas, I get the base64 image data by using canvas.toDataURL('png') and trimming the additional information. var dataUrl = canvas.toDataURL('png'); var escapedBase64Data = dataUrl.replace("data:image/png;base64,",""); After that I try to post to facebook using: FB.api('/me/photos', 'post', { source:data}); Photos (https://developers.facebook.com/docs/reference/api/user/) has a source property. This is where you will place the data content ( multipart/form-data )

问题 I want to let users upload photos to Facebook in my image viewer app. As seen in this post, Facebook Graph API - upload photo using JavaScript, I have to encode my photos as multipart/form-data to be able to upload them. How to archive this encoding on Windows.Storage.StorageFile items? 回答1: You need to open that photo (of type Windows.Storage.StorageFile ) for reading, convert it's stream to blob, append it to FormData object and upload using whatever Ajax library you want ( WinJS.xhr ,

问题 Spring Rest Controller @PostMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE) public ResponseEntity<PersonDTO> createPerson(@RequestParam("user") User personDTO, @RequestParam("file") MultipartFile[] file){ return new ResponseEntity<>(null, responseHeaders, HttpStatus.OK); } Angular Service createPerson(personClass : User, files : File[]): Observable<HttpEvent<{}>>{ let formdata: FormData = new FormData(); //Get Cities var obj = JSON.parse(JSON.stringify(personClass.city)); var myObj =

问题 I have two endpoints api which are /upload and /redirect /upload is where I directly upload the file. /redirect is where i receive the file and pass it to upload and get the JSON response from /upload .So below is my code: package com.example; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.util.HashMap; import java.util.Map; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation

问题 I have two endpoints api which are /upload and /redirect /upload is where I directly upload the file. /redirect is where i receive the file and pass it to upload and get the JSON response from /upload .So below is my code: package com.example; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.util.HashMap; import java.util.Map; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation

问题 This question already has answers here : Android - Get real path of a .txt file selected from the file explorer (1 answer) onActivityResult's intent.getPath() doesn't give me the correct filename (1 answer) Getting the Absolute File Path from Content URI for searched images (2 answers) Create a file from a photo URI on Android (1 answer) Closed 3 months ago . I tried to create file with intent data uri To create File, I start intent like this val intent = Intent(Intent.ACTION_GET_CONTENT)

问题 I have an API endpoint to which I must send a multipart HTTP request, composed of two parts, file (a file system file) and data (a JSON object). After some research I found out how to do a multipart request in AngularJS: $http({ method: 'POST', url: url, headers: { 'Content-Type': 'multipart/form-data' }, data: { data: model, file: file }, transformRequest: customFormDataObject }); 1) The customFormDataObject function initially had this form: customFormDataObject formDataObject = function

问题 I am developing an Android app. In my app, I am using Retrofit to upload image and pdf files to server in multipart/form-data request. I am new to Retrofit. I uploaded pdf file and other string data successfully. But when I upload Image file, it is giving me "No such file or directory" exception even I did the same thing as PDF file that is successfully uploaded. This is my activity upload pdf file and image file public class ContributeActivity extends AppCompatActivity { public static final

问题 I am developing an Android app. In my app, I am using Retrofit to upload image and pdf files to server in multipart/form-data request. I am new to Retrofit. I uploaded pdf file and other string data successfully. But when I upload Image file, it is giving me "No such file or directory" exception even I did the same thing as PDF file that is successfully uploaded. This is my activity upload pdf file and image file public class ContributeActivity extends AppCompatActivity { public static final

问题 I want to build support for fileupload using Jersey (2.22.2) & JaxRs. This is my application: @ApplicationPath("rest") public class DsmJaxRsApplication extends Application { @Override public Set<Class<?>> getClasses() { Set<Class<?>> classes = new HashSet<>(); classes.add(FileUploadResource.class); classes.add(MultiPartFeature.class); return classes; } } This is my resource method to intercept the POST request: @POST @Consumes(MediaType.MULTIPART_FORM_DATA) @Produces(MediaType.TEXT_PLAIN)