在flutter中使用Http调用API调用不成功[关闭]

Question

    Future<String> APICall() async {
    var response = await http.post(Uri.encodeFull('url'),
        headers: {
          'Content-type': 'application/json',
          'Accept': 'application/json',
          "Userid": "55",
          "Deviceid": "a4021faf096eefa1",
          "Token": "b41e6d79062d4dfc2bad4d3141b6ebd6",
        });
    print(response.body);
    print(response.statusCode);
    int resCode = response.statusCode;
    if (resCode == 200) {}
  }

作为 api 的响应，它显示服务器未收到标头参数。

Answer 1

您只需在发送前对正文进行编码：

import 'dart:convert';
...

var bodyEncoded = json.encode(body);
var response = await http.post(url, body: bodyEncoded , headers: {
  "Accept": "application/json"
},);