jq ajax post body raw传json

$.ajax(
                {
                    url: \'\',
                    \'data\': JSON.stringify({
                  
                    }),
                    \'type\': \'POST\',
                    \'processData\': false,
                    \'contentType\': \'application/json\', //typically \'application/x-www-form-urlencoded\', but the service you are calling may expect \'text/json\'... check with the service to see what they expect as content-type in the HTTP header.
                    success: function (msg) {
                        
                    }
                }
            );