Qt, qurl, qurlquery: Special character is encoded in the query string

QString normalize(QString text) 
{ 
 text.replace("%", "%25"); 
 text.replace("@", "%40"); 
 text.replace("'", "%27" ); 
 text.replace("&", "%26"); 
 text.replace(""", "%22"); 
 text.replace("'", "%27"); 
 text.replace(",", "%2C"); 
 text.replace(" ", "%20"); 

 return text; 
} 
QString key = "usermail";
QString value = "[email protected]"; 
QUrlQuery qurlqr; 
qurlqr.addQueryItem(normalize( key), normalize(value));

QString result = qurlqr.toString();

[email protected]

By default, QUrlQuery’s toString decodes percentage encoding. If you want the encoded version, please try:

qurlqr.toString(Q Url::FullyEncoded)

You also don’t need to manually encode strings by replacing characters; you can use QUrl::toEncoded() instead (I suggest you read the QUrlQuery documentation).

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I created a URL query like this:

QString normalize(QString text) 
{ 
 text.replace("%", "%25"); 
 text.replace("@", "%40"); 
 text.replace("'", "%27") ; 
 text.replace("&", "%26"); 
 text.replace(""", "%22"); 
 text.replace("'", " %27"); 
 text.replace(",", "%2C"); 
 text.replace(" ", "%20"); 

 return text ; 
} 
QString key = "usermail";
QString value = "[email protected]"; 
QUrlQuery qurlqr; 
qurlqr.addQueryItem(normalize(key ), normalize(value));

QString result = qurlqr.toString();

The expected result is:

usermail=aemail%40gmail.com.

But I received:

[email protected]

I Don’t know why. Can you help me?

(I use Qt5 on Win7)

By default, QUrlQuery’s toString decodes percentage encoding. If you want the encoded version , Please try:

qurlqr.toString(QUrl :: FullyEncoded)

You also don’t need to manually encode strings by replacing characters; you can use QUrl instead: : toEncoded() (I suggest you read the QUrlQuery documentation).