springmvc 接收前端對象 中包含list的資料的處理方法

<form id="search_form" role="form">      

<div class="form-group mc-form-group">      

<label class="control-label">認證狀态</label>
    <select id="certifiedStatus" multiple name="certifiedStatus" class="form-control">
       
    </select>
 </div>      

<div class="form-group mc-form-group">
            <input type="button" onClick="search()" class="btn btn-primary" value="查詢"/>
   </div>
</form>      

function search() {
    var params = getFormObject($("#search_form"));
    params['page'] = 1;
    params['pageSize'] = $("#page_size").val();
    params['sortOrder'] = "desc";
    params['payObj'] = 1;
    if (params['certifiedStatus']) {
        params['certifiedStatus'] = params['certifiedStatus'].toString();
    }
    if (!checkParam(params)) {
        return;
    }
    var grid = $("#grid_panel").grid();
    grid.updateDefaultParams(params);
    FI.ajaxPost('../invoice/queryList', params, function (result) {
        FW.GlobalMessage.addMessages(result.message, $("#global-message"));
        grid.setData(result);
    });