[英]how to upload images in flutter
你好,我想在 flutter 上傳圖片
我嘗試像這樣使用 http.MultipartRequest
request.fields["name"] = "$RegisterName";
request.fields["description"] = "$RegisterDescription";
request.fields["caution"] = "$RegisterCaution";
request.fields["price"] = "$RegisterPrice";
request.fields["price_prop"] = "$RegisterPriceProp";
request.fields["user.id"] = "1";
request.fields["lend"] = "$RegisterCategory";
request.fields["category"] = "Digital";
request.fields["place_option"] = "true";
var multipartFile = http.MultipartFile.fromBytes(
'file',
(await rootBundle.load('assets/images/main_1.jpg')).buffer.asUint8List(),
filename: 'test01.jpg',
contentType: MediaType('image', 'jpg'),
);
request.files.add(multipartFile);
var response = await request.send();
if (response.statusCode == 200) print('Upload');
}
但是如果我使用這段代碼,這段代碼不起作用,只上傳另一個數據上傳東西
那么 json 類型就是這個json 類型圖像
我想上傳圖片文件...:(
我用它來發送帶有formData的圖片
var head = Api().bearerHeader; ////just bearerToken
var request = http.MultipartRequest(
'POST',
Uri.parse(
'https://c.....'));
request.files
.add(await http.MultipartFile.fromPath('TITLEOFFORMDATA', imageFile.path));
request.headers.addAll(head);
http.StreamedResponse response = await request.send();
if (response.statusCode == 200) {
String varo = await response.stream.bytesToString();
}
這就是您可以使用MultipartRequest將圖像發送到服務器的方法,其中http package
try {
final uri = Uri.parse(your_url);
final request = http.MultipartRequest('POST', uri);
final multipartFile =
await http.MultipartFile.fromPath('Image', 'your_path_of_image'); // Image is the parameter name
request.files.add(multipartFile);
request.fields['userId_if_required'] = value;
final response = await request.send();
if (response.statusCode == 200) {
print('success');
} else {
print('Something went wrong');
}
} catch (e) {
print('Something went wrong');
}
如何將您的圖像上傳到 Django rest API 服務器這肯定有效,如果您有任何問題,請告訴我。 請務必將必要的包添加到您的 pubspec.yaml 文件中
image_picker http
如果有一些我錯過了請問我或添加它並添加為回復
import 'dart:convert';
import 'package:http/http.dart' as http;
import 'dart:io';
import 'package:get/get.dart';
import 'package:image_picker/image_picker.dart';
final _picker = ImagePicker();
File? _image;
// use this to send your image
Future<void>uploadImage(filePath) async {
// your token if needed
try{
var headers = {
'Authorization':
'Bearer ' + "token",
};
// your endpoint and request method
var request = http.MultipartRequest(
'POST',
Uri.parse("https://api.imgur.com/3/image"));
request.fields
.addAll({'yourFieldNameKey1': 'yourFieldNameValue1', 'yourFieldNameKey2': 'yourFieldNameValue2'});
request.files.add(await http.MultipartFile.fromPath(
'yourPictureKey', filePath));
request.headers.addAll(headers);
http.StreamedResponse response = await request.send();
if (response.statusCode == 200) {
print(await response.stream.bytesToString());
} else {
print(response.reasonPhrase);
}
}catch(e){
print(e);
}
}
// 用它來選擇你的圖像
Future<void> _openImagePicker() async {
try {
var pickedImage = await _picker.pickImage(source: ImageSource.gallery);
if (pickedImage != null) {
setState(() {
_image = File(pickedImage.path);
});
uploadImage(pickedImage.path);
}
} catch (e) {
//print(e);
}
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.