post - 带有空体的 Flutter post 方法

Question

我使用请求库发布数据，但在服务器上收到空主体，没有传递任何数据。我在代码中遗漏了什么吗？

Map map = new Map<String, dynamic>();
    map[csrfNameKey] = csrfName;
    map[csrfValueKey] = csrfValue;
    map["username"] = idControler.text;
    map["password"] = passControler.text;

dynamic data;
data = await Requests.post(widget.url + "login", body: json.encode(map),json: true,headers:{"ContentType":"application/json",HttpHeaders.contentTypeHeader: 'application/json'} ,bodyEncoding: RequestBodyEncoding.JSON);

Answer 1

试试看，

import 'dart:convert';
import 'package:http/http.dart';

fetchDataByPost() async {

Map<String, dynamic> body = {'id': 222, 'name': 'aam'};

String jsonBody = json.encode(body);
final encoding = Encoding.getByName('utf-8');
final header = {'Content-Type': 'application/json'};

Response response = await post(
widget.url + "login",
headers: header,
body: jsonBody,
encoding: encoding,
);

int statusCode = response.statusCode;
String responseBody = response.body;
}