Xamarin Visual Studio createcertfromfile 路径无效 [英] Xamarin Visual Studio createcertfromfile path no working

问题描述

我一整天都在工作，我需要使用 xamarin 在 c# 中建立与蚊子 mqtt 代理的 ssl 连接.

I have been working all day, I need to make an ssl connection to mosquito mqtt broker in c# using xamarin.

我正在尝试 CreateFromCertFile(path to cert) ......

I am trying to CreateFromCertFile(path to cert) ......

但是我尝试的所有方法都行不通.

However everything I try won't work.

文件位于 C:\Cert\MyCARoot.cer

The file is located at C:\Cert\MyCARoot.cer

我试过 CreateFromCertFile(@"c:\Cert\MyCARoot.cer");

I have tried CreateFromCertFile(@"c:\Cert\MyCARoot.cer");

和

CreateFromCertFile("c:\\Cert\\MyCARoot.cer");

CreateFromCertFile("c:\\Cert\\MyCARoot.cer");

我不断收到的错误是

System.IO.FileNotFoundException: 找不到文件/C:\Cert\MyCARoot.cer"

System.IO.FileNotFoundException: Could not find file "/C:\Cert\MyCARoot.cer"

基本上它添加了一个/"然后说路径不好.我只是不明白我读到的所有内容都说这应该有效.

Basically it adds a "/" and then says the path is no good. I just don't get it everything I read says this should work.

推荐答案

我不知道 xamarin 中的路径有什么问题，但是有一个问题.我确实找到了解决方案.

I don't know what the problem with paths in xamarin, however there is a problem. I did find a solution.

1. 确保您在活动中工作.
2. 在您的资产文件夹中添加您要使用的文件(右键单击添加现有)
3. 实例化一个 AssetManager 类 -- AssetManager assets = this.Assets;

现在这是我的应用程序可能与其他应用程序不同的地方，因为我想要从我的资产创建一个字节 []，我可以用它来实例化 x509....2 证书类.

Now this is where my application may be different from others because I wanted a byte[] created from my asset which I could use to instantiate a x509....2 certificate class.

我使用 Stream 和 MemoryStream 来获得我想要的结果，见下文

I used Stream and MemoryStream to get my desired results see below

 AssetManager assets = this.Assets;
 using (Stream input = assets.Open("ca-bundle.crt"))
        {
            using (MemoryStream ms = new MemoryStream())
            {
                int read;
                while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
                {
                    ms.Write(buffer, 0, read);
                }
                data = ms.ToArray();
            }
        }

然后我用我的新字节 [] 实例化了我的连接类，然后我有一个到我的 mosquitto mqtt 代理的 ssl 连接.

I then instantiated my connection class with my new byte [], and bing, bang, boom I had an ssl connection to my mosquitto mqtt broker.

我看到 assets.Open("fileInAsset") 的其他应用程序代替了其他操作的文件路径.

Other applications I saw that assets.Open("fileInAsset") worked in place of the path to file for other operations.

祝你好运

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