解決中文地址Uri.IsWellFormedUriString返回false

數字和大小寫字母都ok，但是中文地址就會有問題

public bool IslocalURL(string url)
        {
            if (string.IsNullOrEmpty(url))
            {
                return false;
            }
            Uri absoluteUri;
            if (Uri.TryCreate(url, UriKind.Absolute, out absoluteUri))
            {
                return String.Equals(this._httpContext.Request.Url.Host, absoluteUri.Host, StringComparison.OrdinalIgnoreCase);
            }
            else
            {
                bool isLocal = !url.StartsWith("http:", StringComparison.OrdinalIgnoreCase)
                    && !url.StartsWith("https:", StringComparison.OrdinalIgnoreCase)
                    && Uri.IsWellFormedUriString(url, UriKind.Relative);
                return isLocal;
            }
        }

　　解決辦法：

利用 Uri.EscapeUriString(String) Method

Converts a URI string to its escaped representation.

public static string EscapeUriString (string stringToEscape);

.

  //解决中文url 不会触发301
            pageUrl = Uri.EscapeUriString(pageUrl);

            //301 (permanent) redirection 
            if (webHelper.IslocalURL(pageUrl))
            {
                filterContext.Result = new RedirectResult(pageUrl, true);
            }

　　參考：

https://docs.microsoft.com/zh-cn/dotnet/api/system.uri?redirectedfrom=MSDN&view=netframework-4.7.2