相关疑难解决方法(0)

刚刚开始修补Dart,我决定编写一个简单的Http Server和一个客户端.我的服务器代码:

#import("dart:io");

final HOST = "127.0.0.1";
final PORT = 8080;
final LOG_REQUESTS = true;

void main() {
  HttpServer server = new HttpServer();
  server.addRequestHandler((HttpRequest request) => true, requestReceivedHandler);
  server.listen(HOST, PORT);
  print("Server is running on ${PORT}."); 
}

void requestReceivedHandler(HttpRequest request, HttpResponse response) {
  var pathname = request.uri;
  var apiresponse="";
  if (LOG_REQUESTS) {
    print("Request: ${request.method} ${pathname}");
  }
  if(pathname == '/api'){
    response.headers.set(HttpHeaders.CONTENT_TYPE, "text/plain; charset=UTF-8");
    response.headers.add("Access-Control-Allow-Methods", "POST, OPTIONS, GET");
    response.headers.add("Access-Control-Allow-Origin", "*");
    response.headers.add('Access-Control-Allow-Headers', '*');
    print('welcome to the good life');
    response.outputStream.writeString("API Call");
    response.outputStream.close();
  }
}

我的客户代码: …