C# 替换 Uri 中的主机
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时间：2020-08-04 05:01:58 来源:igfitidea点击:
Replace host in Uri
提问by Rasmus Faber
What is the nicest way of replacing the host-part of an Uri using .NET?
使用 .NET 替换 Uri 的主机部分的最佳方法是什么？
I.e.:
IE：
string ReplaceHost(string original, string newHostName);
//...
string s = ReplaceHost("http://oldhostname/index.html", "newhostname");
Assert.AreEqual("http://newhostname/index.html", s);
//...
string s = ReplaceHost("http://user:pass@oldhostname/index.html", "newhostname");
Assert.AreEqual("http://user:pass@newhostname/index.html", s);
//...
string s = ReplaceHost("ftp://user:pass@oldhostname", "newhostname");
Assert.AreEqual("ftp://user:pass@newhostname", s);
//etc.
System.Uri does not seem to help much.
System.Uri 似乎没有多大帮助。
采纳答案by Ishmael
System.UriBuilderis what you are after...
System.UriBuilder就是你所追求的......
string ReplaceHost(string original, string newHostName) {
var builder = new UriBuilder(original);
builder.Host = newHostName;
return builder.Uri.ToString();
}
回答by Drew Noakes
As @Ishmael says, you can use System.UriBuilder. Here's an example:
正如@Ishmael 所说，您可以使用 System.UriBuilder。下面是一个例子：
// the URI for which you want to change the host name
var oldUri = Request.Url;
// create a new UriBuilder, which copies all fragments of the source URI
var newUriBuilder = new UriBuilder(oldUri);
// set the new host (you can set other properties too)
newUriBuilder.Host = "newhost.com";
// get a Uri instance from the UriBuilder
var newUri = newUriBuilder.Uri;
