C# HttpUtility.UrlEncode意外输出

我正在尝试对url进行编码，以便HttpWebRequest可以使用诸如&之类的字符

所以谷歌把我带到这里：

url = HttpUtility.UrlEncode(url);

但这使得整个url无法使用。Iam获取状态错误：来自Web服务器的操作无效

我在iam使用编码之前获得了此url：

http://jira-test.myServer.de/rest/api/2/search?jql=labels = "F&E"

编码后我得到了这个：

http%3a%2f%2fjira-test.brillux.de%2frest%2fapi%2f2%2fsearch%3fjql%3dlabels+%3d+%22F%26E%22

我做错了什么？在我看来，它不应该取代http之后的//等等。。。还是有其他方法来处理这个问题

信息：

---

给出了相同的结果。

您应该只对查询字符串的值进行编码，而不是对整个URI进行编码：

var uri = "http://jira-test.myServer.de/rest/api/2/search?jql=" +
          HttpUtility.UrlEncode("labels = \"F&E\"");

// Result: http://jira-test.myServer.de/rest/api/2/search?jql=labels+%3d+%22F%26E%22

正确的方法是：

// Construct query string using HttpValueCollection, which handles escaping:
var queryString = HttpUtility.ParseQueryString(string.Empty);
queryString.Add("jql", "labels = \"F&E\"");

// Combine base URI with query string through UriBuilder:
var uriBuilder = new UriBuilder("http://jira-test.myServer.de/rest/api/2/search");
uriBuilder.Query = queryString.ToString();

// Get string representation:
string uri = uriBuilder.ToString();

// Result: http://jira-test.myserver.de:80/rest/api/2/search?jql=labels+%3d+%22F%26E%22

---

您应该只对查询字符串的值进行编码，而不是对整个URI进行编码：

var uri = "http://jira-test.myServer.de/rest/api/2/search?jql=" +
          HttpUtility.UrlEncode("labels = \"F&E\"");

// Result: http://jira-test.myServer.de/rest/api/2/search?jql=labels+%3d+%22F%26E%22

正确的方法是：

// Construct query string using HttpValueCollection, which handles escaping:
var queryString = HttpUtility.ParseQueryString(string.Empty);
queryString.Add("jql", "labels = \"F&E\"");

// Combine base URI with query string through UriBuilder:
var uriBuilder = new UriBuilder("http://jira-test.myServer.de/rest/api/2/search");
uriBuilder.Query = queryString.ToString();

// Get string representation:
string uri = uriBuilder.ToString();

// Result: http://jira-test.myserver.de:80/rest/api/2/search?jql=labels+%3d+%22F%26E%22