The C # decoding function System corresponding to escape in js. web. httpUtility. urlDecode (s). Pay attention to the C # decoding function System corresponding to escape in js as follows. web. httpUtility. urlDecode (s) // pay attention to Encoding
Notes:
1. HttpUtility. UrlEncode and HttpUtility. UrlDecode are static methods, while Server. UrlEncode and Server. UrlDecode are instance methods.
2. Server is an instance of the HttpServerUtility class and a property of System. Web. UI. Page.
3. the string encoded with HttpUtility. UrlEncode is different from the string object encoded with Server. UrlEncode:
For example:
The Code is as follows:
String url = "http://search.99read.com/index.aspx? Book_search = all & main_str = omyr ";
Response. Write (HttpUtility. UrlEncode (url ));
Response. Write ("
");
Response. Write (Server. UrlEncode (url ));
The output result is:
Http % 3a % 2f % 2fsearch.99read.com % 2findex. aspx % 3fbook_search % 3 dall % 26main_str % 3d % e5 % a5 % a5 % e8 % bf % b7 % e5 % b0 % 94
Http % 3a % 2f % 2fsearch.99read.com % 2findex. aspx % 3fbook_search % 3 dall % 26main_str % 3d % b0 % c2 % c3 % d4 % b6 % fb
Cause: Server. UrlEncode is encoded according to the encoding method set by the local program, while HttpUtility. UrlEncode is encoded in. net UTF-8 format by default.
If you change the program:
The Code is as follows:
String url1 = "http://search.99read.com/index.aspx? Book_search = all & main_str = omyr ";
Response. Write (HttpUtility. UrlEncode (url1, System. Text. Encoding. GetEncoding ("GB2312 ")));
Response. Write ("
");
Response. Write (Server. UrlEncode (url1 ));
The output result is:
Http % 3a % 2f % 2fsearch.99read.com % 2findex. aspx % 3fbook_search % 3 dall % 26main_str % 3d % b0 % c2 % c3 % d4 % b6 % fb
Http % 3a % 2f % 2fsearch.99read.com % 2findex. aspx % 3fbook_search % 3 dall % 26main_str % 3d % b0 % c2 % c3 % d4 % b6 % fb
3. Sometimes the URLs transmitted by other systems are encoded in other encoding methods.
This section describes a self-written method to obtain the QueryString of the specified encoding format.
The Code is as follows:
Public string GetNonNullQueryString (string key, Encoding encoding)
{
// Reference the System. Collections. Specialized and System. Text namespaces.
String stringValue;
System. Collections. Specialized. NameValueCollection encodingQueryString;
// This method is added in 2.0.
EncodingQueryString = HttpUtility. ParseQueryString (Request. Url. Query, encoding );
// The key in 'is the Key of the parameter you submitted
Return encodingQueryString [key]! = Null? EncodingQueryString [key]. Trim ():"";
}
Call:
String url = GetNonNullQueryString ("url", Encoding. UTF8). Trim ();
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Differences between escape, encodeURI, and encodeURIComponent functions in javascript
JavaScript code involves three functions: escape, encodeURI, and encodeURIComponent. The corresponding three decoding functions are: unescape, decodeURI, and decodeURIComponent.
1. encodeURIComponent is required when passing parameters so that the combined url will not be truncated by special characters such.
For example:
