如何在颤动中发布x-www-form-urlencode [英] How to post x-www-form-urlencoded in Flutter

问题描述

我正在尝试向API发送POST请求以创建帐户。
请求工作正常，应该如下所示：

批量编辑模式：

键值编辑模式：

还有9个标题是自动生成的，所以我没有显示它们，但如果您需要，我可以拍摄另一个屏幕。

我的请求如下所示：

import 'dart:convert' as convert ;

import 'package:my_project/requests/utils.dart';
import 'package:http/http.dart' as http;


Future<String>      createUser(String firstName, String name, String mail,
    String password, String confirmPassword, String birthDate,
    String phone) async {
  String              url = BASE_URL + "createUser" ; // Don't worry about BASE_URL, the final url is correct

  Map<String, dynamic>    formMap = {
    "name": name,
    "surname": firstName,
    "mail": mail,
    "password": password,
    "birth": birthDate,
    "phone": phone,
    "confirmPassword": confirmPassword
  } ;

  http.Response    response = await http.post(
    url,
    body: convert.jsonEncode(formMap),
    headers: {
      "Content-Type": "application/x-www-form-urlencoded"
    },
    encoding: convert.Encoding.getByName("utf-8"),
  );
  print("RESPONSE ${response.statusCode} ; BODY = ${response.body}");

  return (response.body) ;

}

这是我的打印结果：

I/flutter ( 6942): RESPONSE 307 ; BODY =  

如您所见，我收到一个307错误，问题不是来自服务器，因为它与Postman一起工作。

我是否正确发送了此form-urlencoded POST请求？

我还尝试了：

http.Response    response = await http.post(
    url,
    body: "name=$name&surname=$firstName&mail=$mail&password=$password&birth=$birthDate&phone=$phone&confirmPassword=$confirmPassword",
    headers: {
      "Content-Type": "application/x-www-form-urlencoded"
    },
    encoding: convert.Encoding.getByName("utf-8"),
  );

但结果是一样的。我也试过了：

http.Response    response = await http.post(
    url,
    body: formMap,
    headers: {
      "Content-Type": "application/x-www-form-urlencoded"
    },
    encoding: convert.Encoding.getByName("utf-8"),
  );

再次返回相同结果。
我做错了什么？

编辑：

我尝试了FoggyDay应答，现在我的请求是：

final client = HttpClient() ;
final request = await client.postUrl(Uri.parse(url));
request.headers.set(HttpHeaders.contentTypeHeader, "application/x-www_form-urlencoded");
request.followRedirects = true ;
request.write(formMap);
final response = await request.close();
print("STATUS CODE = ${response.statusCode}");

但是，我仍然有一个307错误。我是否创建了正确的请求？

编辑2：

按照要求，我打印的位置如下：

final client = HttpClient() ;
final request = await client.postUrl(Uri.parse(url));
request.headers.set(HttpHeaders.contentTypeHeader, "application/x-www_form-urlencoded");
request.followRedirects = true ;
request.write(formMap);
final response = await request.close();
print("STATUS CODE = ${response.statusCode}");
print("Response headers = ${response.headers}");

我得到：

I/flutter ( 7671): STATUS CODE = 307
I/flutter ( 7671): Response headers = location: /app/createUser/
I/flutter ( 7671): date: Tue, 26 May 2020 09:00:29 GMT
I/flutter ( 7671): content-length: 0
I/flutter ( 7671): server: Apache/2.4.41 (Amazon) OpenSSL/1.0.2k-fips

问题是我已经在/app/createUser上进行了呼叫.("/app/"位于BASE_URL中)

推荐答案

对于x-www-form-urlencoded参数，只需使用：

  Future<String> login(user, pass) async {
   final response = await http.post(
    Uri.parse('https:youraddress.com/api'),
    headers: {
     "Content-Type": "application/x-www-form-urlencoded",
    },
    encoding: Encoding.getByName('utf-8'),
    body: {"title": "title"},
   );

 if (response.statusCode == 200) {
    // If the server did return a 200 OK response,
   // then parse the JSON.
 } else {
    // If the server did not return a 200 OK response,
   // then throw an exception.
 }
}

这篇关于如何在颤动中发布x-www-form-urlencode的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！