jQuery Easyui datagrid连续发送两次请求问题

XXXXXX.datagrid({
    url: "${pageContext.request.contextPath}/xx/xx/xx,
      });

$('#XXXX').datagrid({
        fit: true,
        fitColumns: false,
        border: false,
        pagination: false,
        idField: 'id',
        striped: true,
        remoteSort: false,
        pageSize: 20,
        pageList: [20, 30, 50, 100],
        sortOrder: 'asc',
        singleSelect: true,
        checkOnSelect: true,
        selectOnCheck: true,
        nowrap: true,
        showPageList: false,
        enableRowContextMenu: false,
        url: "${pageContext.request.contextPath}/xx/xx/xx.do",