jQuery序列化form表单数据为JSON对象的实现方法

(function(window, $) {
  $.fn.serializeJson = function() {
    var serializeObj = {};
    var array = this.serializeArray();
    var str = this.serialize();
    $(array).each(
        function() {
          if (serializeObj[this.name]) {
            if ($.isArray(serializeObj[this.name])) {
              serializeObj[this.name].push(this.value);
            } else {
              serializeObj[this.name] = [
                  serializeObj[this.name], this.value ];
            }
          } else {
            serializeObj[this.name] = this.value;
          }
        });
    return serializeObj;
  };
})(window, jQuery);

console.info($("#searchForm").serializeJson());

<form id="myform"> 
  <table> 
    <tr> 
      <td>姓名:</td> 
      <td> <input type="text" name="name" /> </td> 
    </tr> 
    <tr> 
      <td>性别:</td> 
      <td> 
        <input type="radio" name="sex" value="1"> 男 
        <input type="radio" name="sex" value="0"> 女 
      </td> 
    </tr> 
    <tr> 
      <td>年龄:</td> 
      <td> 
        <select name="age"> 
          <option value="20">20</option> 
          <option value="21">21</option> 
          <option value="22">22</option> 
        </select> 
      </td> 
    </tr> 
    <tr> 
      <td>爱好</td> 
      <td> 
        <input type="checkbox" value="basketball" name="hobby">篮球 
        <input type="checkbox" value="volleyball" name="hobby">排球 
        <input type="checkbox" value="football" name="hobby">足球 
        <input type="checkbox" value="earth" name="hobby">地球 
      </td> 
    </tr> 
    <tr> 
      <td colspan="2"> 
        <input type="button" id="ajaxBtn" value="提交" /> 
      </td> 
    </tr> 
  </table> 
</form> 
 
<script type="text/javascript"> 
  $(function() { 
    $("#ajaxBtn").click(function() { 
        var params = $("#myform").serializeObject(); //将表单序列化为JSON对象  
        console.info(params); 
      }) 
  }) 
  $.fn.serializeObject = function() { 
    var o = {}; 
    var a = this.serializeArray(); 
    $.each(a, function() { 
      if (o[this.name]) { 
        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; 
  } 
</script>