In my web app, I submit some form fields with jQuery's $.getJSON() method. I am having some problems with the encoding. The character-set of my app is charset=ISO-8859-1, but I think these fields are submitted with UTF-8.
How I can set encoding used in $.getJSON calls?
If you want to use $.getJSON() you can add the following before the call :
$.ajaxSetup({
scriptCharset: "utf-8",
contentType: "application/json; charset=utf-8"
});
You can use the charset you want instead of utf-8.
The options are explained here.
contentType : When sending data to the server, use this content-type. Default is application/x-www-form-urlencoded, which is fine for most cases.
scriptCharset : Only for requests with jsonp or script dataType and GET type. Forces the request to be interpreted as a certain charset. Only needed for charset differences between the remote and local content.
You may need one or both ...
application/json.
I think that you'll probably have to use $.ajax() if you want to change the encoding, see the contentType param below (the success and error callbacks assume you have <div id="success"></div> and <div id="error"></div> in the html):
$.ajax({
type: "POST",
url: "SomePage.aspx/GetSomeObjects",
contentType: "application/json; charset=utf-8",
dataType: "json",
data: "{id: '" + someId + "'}",
success: function(json) {
$("#success").html("json.length=" + json.length);
itemAddCallback(json);
},
error: function (xhr, textStatus, errorThrown) {
$("#error").html(xhr.responseText);
}
});
I actually just had to do this about an hour ago, what a coincidence!
application/json.You need to analyze the JSON calls using Wireshark, so you will see if you include the charset in the formation of the JSON page or not, for example:
0000 48 54 54 50 2f 31 2e 31 20 32 30 30 20 4f 4b 0d HTTP/1.1 200 OK. 0010 0a 43 6f 6e 74 65 6e 74 2d 54 79 70 65 3a 20 74 .Content -Type: t 0020 65 78 74 2f 68 74 6d 6c 0d 0a 43 61 63 68 65 2d ext/html ..Cache- 0030 43 6f 6e 74 72 6f 6c 3a 20 6e 6f 2d 63 61 63 68 Control: no-cach
0000 48 54 54 50 2f 31 2e 31 20 32 30 30 20 4f 4b 0d HTTP/1.1 200 OK. 0010 0a 43 61 63 68 65 2d 43 6f 6e 74 72 6f 6c 3a 20 .Cache-C ontrol: 0020 6e 6f 2d 63 61 63 68 65 0d 0a 43 6f 6e 74 65 6e no-cache ..Conten 0030 74 2d 54 79 70 65 3a 20 74 65 78 74 2f 68 74 6d t-Type: text/htm 0040 6c 3b 20 63 68 61 72 73 65 74 3d 49 53 4f 2d 38 l; chars et=ISO-8 0050 38 35 39 2d 31 0d 0a 43 6f 6e 6e 65 63 74 69 6f 859-1..C onnectio
Why is that? because we can not put on the page of JSON a goal like this:
In my case I use the manufacturer Connect Me 9210 Digi:
It worked for me without having to convert the data passed by JSON for UTF-8 and then redo the conversion on the page ...
Use encodeURI() in client JS and use URLDecoder.decode() in server Java side works.
Example:
Javascript:
$.getJSON(
url,
{
"user": encodeURI(JSON.stringify(user))
},
onSuccess
);
Java:
java.net.URLDecoder.decode(params.user, "UTF-8");
f you want to use $.getJSON() you can add the following before the call :
$.ajaxSetup({
scriptCharset: "utf-8",
contentType: "application/json; charset=utf-8"
});
Use this function to regain the utf-8 characters
function decode_utf8(s) {
return decodeURIComponent(escape(s));
}
Example: var new_Str=decode_utf8(str);
application/json.