javascript cannot send '+' character with ajax parameter

Question

I need to pass the '+' character with ajax parameter to my controller.

Ajax Call with parameter contain '+' charactor.

var subsNumbers = '+94'
var url = 'getList?subsNums='+subsNumbers;

$.ajax({
        url:url,
        type:'POST',
        dataType:'json',
        success:function (saveResponse) {
....
}
});

In my controller(Spring controller class),

String deviceNumbers = request.getParameter("subsNums");
logger.debug("deviceNumbers-->{}", deviceNumbers);

the '+' character has been replaced with space. Actual result is

deviceNumbers--> 94

Expected is

deviceNumbers-->+94

your ajax dataType is JSON but your sending a string right? and for your question I guess it can be solved by Url Encode @Client and Url Decode @Server. — yashhy
– yashhy, Commented Jan 2, 2014 at 11:38

Musa · Accepted Answer · 2014-01-02 11:38:42Z

6

Your url is not properly encoded, use encodeURIComponent

var url = 'getList?subsNums='+encodeURIComponent(subsNumbers);

answered Jan 2, 2014 at 11:38

Musa

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1 Comment

Mike 'Pomax' Kamermans Over a year ago

to explain why: the + character in a URL is by convention a substitute for the illegal space character, so if your URL contains + symbols, the receiver MUST interpret them as "these are really spaces".

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