$.fn.serializeObject = function(){    var o = {}; var a = this.serializeArray(); $.each(a, function() { if (o[this.name] !== undefined) { if (!o[this.name].push) { o[this.name] = [o[this.name]]; } o[this.name].push(this.value || ''); } else { o[this.name] = this.value || ''; } }); return o; }; var jsonObj = $("#form").serializeObject();  //json对象 var jsonStr = JSON.stringify($("#form").serializeObject());  //json字符串