Path.Combine很方便,但是.NET框架中是否有类似的URL函数?
我正在寻找这样的语法:
Url.Combine("http://MyUrl.com/", "/Images/Image.jpg")
这将返回:
"http://MyUrl.com/Images/Image.jpg"
Path.Combine很方便,但是.NET框架中是否有类似的URL函数?
我正在寻找这样的语法:
Url.Combine("http://MyUrl.com/", "/Images/Image.jpg")
这将返回:
"http://MyUrl.com/Images/Image.jpg"
当前回答
值得一提的是,这里有几个扩展方法。第一个将合并路径,第二个将向URL添加参数。
public static string CombineUrl(this string root, string path, params string[] paths)
{
if (string.IsNullOrWhiteSpace(path))
{
return root;
}
Uri baseUri = new Uri(root);
Uri combinedPaths = new Uri(baseUri, path);
foreach (string extendedPath in paths)
{
combinedPaths = new Uri(combinedPaths, extendedPath);
}
return combinedPaths.AbsoluteUri;
}
public static string AddUrlParams(this string url, Dictionary<string, string> parameters)
{
if (parameters == null || !parameters.Keys.Any())
{
return url;
}
var tempUrl = new StringBuilder($"{url}?");
int count = 0;
foreach (KeyValuePair<string, string> parameter in parameters)
{
if (count > 0)
{
tempUrl.Append("&");
}
tempUrl.Append($"{WebUtility.UrlEncode(parameter.Key)}={WebUtility.UrlEncode(parameter.Value)}");
count++;
}
return tempUrl.ToString();
}
其他回答
有趣的例子,Ryan,以函数的链接结尾。做得好。
一个建议Brian:如果您将此代码包装在函数中,则可能需要在TryCreate调用之前使用UriBuilder包装基URL。
否则,基本URL必须包含方案(其中UriBuilder将采用http://)。只是一个想法:
public string CombineUrl(string baseUrl, string relativeUrl) {
UriBuilder baseUri = new UriBuilder(baseUrl);
Uri newUri;
if (Uri.TryCreate(baseUri.Uri, relativeUrl, out newUri))
return newUri.ToString();
else
throw new ArgumentException("Unable to combine specified url values");
}
好吧,我只是连接两个字符串并使用正则表达式来完成清理部分。
public class UriTool
{
public static Uri Join(string path1, string path2)
{
string url = path1 + "/" + path2;
url = Regex.Replace(url, "(?<!http:)/{2,}", "/");
return new Uri(url);
}
}
因此,您可以这样使用:
string path1 = "http://someaddress.com/something/";
string path2 = "/another/address.html";
Uri joinedUri = UriTool.Join(path1, path2);
// joinedUri.ToString() returns "http://someaddress.com/something/another/address.html"
您使用Uri.TryCreate(…):
Uri result = null;
if (Uri.TryCreate(new Uri("http://msdn.microsoft.com/en-us/library/"), "/en-us/library/system.uri.trycreate.aspx", out result))
{
Console.WriteLine(result);
}
将返回:
http://msdn.microsoft.com/en-us/library/system.uri.trycreate.aspx
//阅读以上所有示例,结果创建了我自己:
static string UrlCombine(params string[] items)
{
if (items?.Any() != true)
{
return string.Empty;
}
return string.Join("/", items.Where(u => !string.IsNullOrWhiteSpace(u)).Select(u => u.Trim('/', '\\')));
}
//用法
UrlCombine("https://microsoft.com","en-us")
我使用此代码来解决问题:
string[] brokenBaseUrl = Context.Url.TrimEnd('/').Split('/');
string[] brokenRootFolderPath = RootFolderPath.Split('/');
for (int x = 0; x < brokenRootFolderPath.Length; x++)
{
//if url doesn't already contain member, append it to the end of the string with / in front
if (!brokenBaseUrl.Contains(brokenRootFolderPath[x]))
{
if (x == 0)
{
RootLocationUrl = Context.Url.TrimEnd('/');
}
else
{
RootLocationUrl += String.Format("/{0}", brokenRootFolderPath[x]);
}
}
}