出现一个或多个错误.(无法解析TLS数据包标头)C#Xamarin Android Project Visual Stu

Question

当我为API服务器使用http url时，我收到错误：

Message "One or more errors occurred. (Cleartext HTTP traffic to 194.141.118.43 not permitted)" 

当我把https放在API服务器的url上时，我收到错误：

Message "One or more errors occurred. (Unable to parse TLS packet header)"  

我的RestServiceData类看起来像：

using System;
using System.Diagnostics;
using System.Net.Http;
using System.Threading.Tasks;
using MaritsaTundzhaForecast.Models;
using Newtonsoft.Json;
namespace MaritsaTundzhaForecast.Services
{
public class RestServiceData
{
HttpClient _client1;
HttpClient _client2;
public RestServiceData()
{
_client1 = new HttpClient();
_client2 = new HttpClient();
}
public WaterBindingData GetWaterDataForecast(string query, string query2)
{
WaterDataJson waterData = new WaterDataJson();
WaterStationsJson waterStations = new WaterStationsJson();
WaterBindingData result = new WaterBindingData();
try
{
var task = Task.Run(() => _client1.GetAsync(query));
task.Wait();
var response = task.Result;
var task2 = Task.Run(() => _client2.GetAsync(query2));
task2.Wait();
var response2 = task2.Result;

if (response.IsSuccessStatusCode && response2.IsSuccessStatusCode)
{
var content = response.Content.ReadAsStringAsync().Result;
var content2 = response2.Content.ReadAsStringAsync().Result;
var json = content2.Replace(""ardaforecast":[[", ""ardaforecast":[ {"items": [")
.Replace("}],{"fieldCount"", "}],"details":{"fieldCount"")
.Replace("}]}", "}}]}");
waterData = JsonConvert.DeserializeObject<WaterDataJson>(content2);

waterStations = JsonConvert.DeserializeObject<WaterStationsJson>(content);
result.WaterData = waterData;
result.WaterStation = waterStations;
}
}
catch (Exception ex)
{
Debug.WriteLine("ttERROR {0}", ex.Message);
}
return result;
}
}
}

这是我的Constants类：

using System;
using System.IO;
namespace MaritsaTundzhaForecast
{
public static class Constants
{
public static string EndPoint = "https://194.141.118.43:3001/";
}
}

我能做些什么来修复这个错误？

Answer 1

1. 如果您的网站没有任何证书配置，请将https更改为http。

2. 设置为允许http请求。

   添加您的xxx。安卓系统->属性->AndroidManifest.xml：android:usesCleartextTraffic="true"。

3. 如果以上方法不起作用，请在Resources文件夹，并添加network_security_config.xml文件。添加代码：

   <?xml version="1.0" encoding="utf-8"?>
   <network-security-config>
   <base-config cleartextTrafficPermitted="true"/>
   </network-security-config> 
   

   添加您的xxx。安卓系统->属性->AndroidManifest.xml：

   android:networkSecurityConfig="@xml/network_security_config"
   

Answer 2

如果您想要使用http请求，您应该将android:usesCleartextTraffic="true"添加到AndroidManifest.xml中的应用程序标签中，该标签仅在API 23级及更高级别中使用(这足以进行测试(。你应该在线使用https请求，你需要一个域名，https将在你的服务器中使用443端口。通常，您需要Nginx或Apache来侦听443并连接自己的服务器。