转自：https://www.cnblogs.com/yeminglong/p/8910017.html

JavaScript代码如下：

function parseParam(param, key) {
    var paramStr = ''
    if (param instanceof String || param instanceof Number || param instanceof Boolean) {
        paramStr += '&' + key + '=' + encodeURIComponent(param)
    } else {
        $.each(param, function (i, p) {
            if (p == null || p == undefined)
                return true
            var k = key == null ? i : key + (param instanceof Array ? '[' + i + ']' : '.' + i)
            paramStr += '&' + parseParam(this, k)
        })
    }
    return paramStr.substr(1)
}

调用如下：

 

 $.ajax({
                    type: "POST",
                    dataType: "json",
                    url: "/dictionarys/Test",
                    traditional: false,
                    data: parseParam(queryParams),
                    success: function (response) {
                        alert(JSON.stringify(response));
                    }
                });