如何在flutter中获取服务器请求中的查询参数？

import 'dart:io';

HttpServer server; // 假设已经创建了一个HttpServer对象
HttpRequest request; // 假设已经获取到了HttpRequest对象

Uri uri = request.uri;

Map<String, String> queryParams = uri.queryParameters;

String paramValue = queryParams['paramName'];

import 'dart:io';

void main() {
  HttpServer.bind('localhost', 8080).then((server) {
    server.listen((request) {
      Uri uri = request.uri;
      Map<String, String> queryParams = uri.queryParameters;
      
      String paramValue = queryParams['paramName'];
      
      // 处理查询参数值
      print('查询参数值：$paramValue');
      
      request.response.write('成功获取查询参数值');
      request.response.close();
    });
  });
}