Use Ajax to pass the JSON array to MVC background front end

Front -end code:

$.ajax({
    async: false,
    url: '/controller/action',
    data: JSON.stringify({ hand: newjsonObjIte, logsql: log }),
    dataType: 'json',
    contentType: "application/json; charset=utf-8",
    type: 'post',
    success: function (data) {
        // Back results
    },
    error: function (XMLHttpRequest, textStatus, errorThrown) {
        layer.msg("Error:" + textStatus + '-' + XMLHttpRequest.statusText + '-' + XMLHttpRequest.responseText);
    }
});

Background code:

/// <summary>
/// Batch newly added
/// </summary>
/// <param name="hand"></param>
/// <param name="logsql"></param>
/// <returns></returns>
public ActionResult action(List<sn_bd_hand> hand, string logsql = "")
{
    string sError = "";
    if (!string.IsNullOrEmpty(logsql))
        logsql = CreateLogsql(logsql);
    int res = snMainBLL.PlAddHand(hand, logsql, ref sError);
    return Json(new { successed = res, msg = sError });
}

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