[Unity]有没有办法在执行Unity编辑器时和关闭它后发布http请求？

Question

我想System.Environment.UserName在打开和关闭 unity 时以“状态”发布到数据库！不是在播放场景时。打开 unity 时，我想更新“ON”状态以及关闭“OFF”状态或数据库中的 1 和 0 时。

Answer 1

尽管你的问题很广泛......

就在这里！

您可以UnityWebRequest以通常不会使用的方式使用：没有协程。在打开和关闭编辑器的过程中，如果 Web 请求期间有短暂的延迟，那可能还不错，因此我们可以在这个特定用例中使用简单的阻塞调用。

所以只需等待它在通常的while循环中完成即可。我刚刚UnityWebRequest.Get在 Google 上使用简单到一些随机图像创建了一个示例，但您可以轻松地将其替换为任何更复杂的UnityWebRequest.Post.

只需通过以下方式启动打开请求，InitializeOnLoadMethod并注册一个回调EditorApplication.wantsToQuit，以便在尝试关闭 Unity 时调用关闭请求。这样，编辑器只能在EditorApplication.wantsToQuit返回的回调时关闭true。

确保将此文件放入名为Editor.

using System.IO;
using UnityEditor;
using UnityEngine;
using UnityEngine.Networking;

public static class Example
{
    // InitializeOnLoadMethod causes this method to be called when the editor is opened
    [InitializeOnLoadMethod]
    private static void Initialize()
    {
        #region Required Part
        // register callback
        // The editor will only close if OnQuitEditor returns true
        EditorApplication.wantsToQuit += OnQuitEditor;

        // I'll just do a random Get Request but you can do any request here
        var request = UnityWebRequest.Get("https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Example.svg/2000px-Example.svg.png");

        request.SendWebRequest();

        while (!request.isDone && !request.isHttpError && !request.isNetworkError)
        {
            // just wait
        } 

        if(request.isHttpError || request.isNetworkError || !string.IsNullOrWhiteSpace(request.error))
        {
            Debug.LogError("Couldn't finish opening request!");
            return;
        }    
        #endregion Required Part

        #region DEMO Part
        // Just to show here that it worked create a file called "Open"
        var filePath = Path.Combine(Application.streamingAssetsPath, "open.txt");
        if (!Directory.Exists(Application.streamingAssetsPath)) Directory.CreateDirectory(Application.streamingAssetsPath);

        using (var file = File.Open(filePath, FileMode.OpenOrCreate, FileAccess.Write))
        {
            using (var writer = new StreamWriter(file))
            {
                writer.Write("Hello!");
            }
        }
        #endregion DEMO Part
    }

    /// <summary>
    /// Hinders the Editor to close if the request failed
    /// </summary>
    /// <returns></returns>
    private static bool OnQuitEditor()
    {
        #region Required Part
        // I'll just do a random Get Request but you can do any request here
        var request = UnityWebRequest.Get("https://image.shutterstock.com/image-vector/example-red-square-grunge-stamp-260nw-327662909.jpg");

        request.SendWebRequest();

        while (!request.isDone && !request.isHttpError && !request.isNetworkError)
        {
            // just wait
        }

        if(request.isHttpError || request.isNetworkError || !string.IsNullOrWhiteSpace(request.error))
        {
            Debug.LogError("Couldn't finish closing request!");
            return false;
        }    
        #endregion Required Part

        #region DEMO Part
        // Just to show here that it worked delete the Open file and create a closed file
        if (!Directory.Exists(Application.streamingAssetsPath)) Directory.CreateDirectory(Application.streamingAssetsPath);

        var filePath = Path.Combine(Application.streamingAssetsPath, "open.txt");
        if(File.Exists(filePath)) File.Delete(filePath);

        filePath = Path.Combine(Application.streamingAssetsPath, "close.txt");

        using (var file = File.Open(filePath, FileMode.OpenOrCreate, FileAccess.Write))
        {
            using (var writer = new StreamWriter(file))
            {
                writer.Write("World!");
            }
        }
        #endregion DEMO Part

        return string.IsNullOrEmpty(request.error);
    }
}

注意：目前编辑器无法以通常的方式关闭，以防关闭请求失败，因此您可以根据需要进行调整。例如，如果关闭请求的结果不是那么重要，您可以改为添加一个简单的voidas 回调EditorApplication.quitting。

作为它在这里工作的一个小演示，您可以看到当我打开项目时，它Assets/StreamingAssets/open.txt被创建了。

当我关闭项目时，Assets/StreamingAssets/open.txt将删除并Assets/StreamingAssets/closed.txt创建。