Flutter Web 项目网络请求报 XMLHttpRequest error 解决方案 最近在做一个flutter web项目,当我使用http库进行简单的网络请求时,运行在Chrome浏览器上,网络请求一直报错 XMLHttpRequest error,而在iOS 模拟器上运行则正常,后面在postman上发送请求,也是正常的。这就是很尴尬了!!! 经多番查阅,是跨域问题,解决方案如...
A simple http request, an error was reported on flutter web, it works very well on Android, is there any special configuration on flutter web? void _requestMusicList() async{ var url = 'http://...'; var response = await http.post(url,headers: {'Content-Type':'application/json'});...
When you make a request with the http package in flutter web the browser first makes an option request on the apps behalf. The backend service responds with the allowed request, the browser checks the option response and either allows the request or throws a cors error. This is where the p...
request.uri = uri; var response = await client.send(request); var responseBody = await response.stream.bytesToString(); client.close(); return responseBody; } ``` 在这个示例中,我们首先创建了一个HttpClient实例,然后构建了一个HttpRequest对象,并设置了请求的URI。接着,我们使用client.send方法发送请...
http_request HttpClient: 是dart自带的请求类、在io包中 http库:http库是Dart官方提供的另外一种网络请求类, 但需要手动添加依赖pubspec dio库:是flutter比较受欢迎的一个第三方库,需要手动添加依赖pubspec 1. HttpClient /* HttpClient 是dart自带的请求类、在io包中 ...
Flutter —— 解密dart语法
问题已经解决，原因是浏览器的跨域问题，我在python代码中设置了web.header("Access-Control-Allow-Origin...
当我尝试使用http.post检索数据时,会出现以下错误: browser_client.dart:87 POST https://<myadresse>.000webhostapp.com/<nameFile>.php net::ERR_HTTP2_PROTOCOL_ERROR Uncaught (in promise) Error: XMLHttpRequest error. C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_de...
在flutter中在http请求发送时设置"content-type": "application/json"会出现报错Cannot set the body fields of a Request with content-type “application/json” 请求如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 final putResponse = await http.put('http://192.168.201.21/user/modifyUser', ...
{get;set;} public string Field22{get;set;} } 客户端调用...HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, @"http://192.168.20.104/HY_WebApi/api...调用接口2传参的方式有两种第一种方法:采用FormUrlEncodedContent将请求输入写入消息体中 HttpContent content = new FormUrl...