Flutter-插座异常：连接失败(操作系统错误：网络无法访问，错误号= 101)

gojuced7 于 2023-01-27 发布在 Flutter

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连接到以太坊节点时出错
E/扑动（23790）：[错误：flutter/lib/ui/ui_dart_state.cc（148）]未处理的异常：套接字异常：连接失败（操作系统错误：网络无法访问，错误号= 101）
------------------------------web 3连接代码如下-----------------------------------------------------------

import 'package:flutter/material.dart';
import 'package:http/http.dart';
import 'package:web3dart/web3dart.dart';
import 'dart:async';

const String rpcUrls = 'https://node1.bitcoiin.com';
class HomeScreen extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _HomeScreenState();
  }
}
class _HomeScreenState extends State<HomeScreen> {
  @override
  void initState() {
    main();
    super.initState();
  }
  main(){
  var ethClient = new Web3Client(apiUrls, new Client());
  print(ethClient.getBlockNumber());
}

flutter

来源：https://stackoverflow.com/questions/55400121/flutter-socketexception-connection-failed-os-error-network-is-unreachable

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按热度按时间

htzpubme1#

我仍然不知道为什么这个解决方案的作品，但我有同样的问题，我试图取代localhost的IP地址到我的服务器（e.g. 192.168.1.33）.
请为您的应用尝试以下代码：

main(){
  var httpClient = new Client();
  // You tried the code below and it didn't work
  // var ethClient = new Web3Client('http://localhost:8545', httpClient);

  // Try this code instead. (Replace "192.168.1.33" with the IP of your server)
  var ethClient = new Web3Client('http://192.168.1.33:8545', httpClient);

  print(ethClient.getBlockNumber());
}

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Flutter-插座异常：连接失败(操作系统错误：网络无法访问，错误号= 101)

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