Question

所以我一直在网上寻找一种方法将数据从我的js发送到我的控制器，并且遇到了一个看似很好的解决方案。

function syncDB() {
if (localStorage.length != 0) {
    var data = viewLog();
    for (var i = 0; i < localStorage.length; i++) {
        $.ajax({
            url: "/Leads/RegisterOfflineEntries",
            type: "POST",
            dataType: "json",
            data: JSON.stringify(data)
        });
    }
}

}

发送到：

public ActionResult RegisterOfflineEntries(string[] leads)
    {
        string[] splitLeads;
        for (int i = 0; i < leads.Length; i++)
        {
            splitLeads = leads[i].Split(',');
            var validFields = new List<LeadFields>();
            var fields = new List<LeadFields>
            {
                new LeadFields() {Value = splitLeads[0], FieldsId = 1},
                new LeadFields() {Value = splitLeads[1], FieldsId = 2},
                new LeadFields() {Value = splitLeads[2], FieldsId = 3},
                new LeadFields() {Value = splitLeads[3], FieldsId = 4},
                new LeadFields() {Value = splitLeads[4], FieldsId = 5}
            };
            foreach (var v in fields.Where(v => !(string.IsNullOrEmpty(v.Value))))
            {
                v.Value = v.Value.ToUpper();
                validFields.Add(v);
            }

        }
        return RedirectToAction("Index","Home");
    }

现在，不要过多地读入代码，导致问题出在ActionMethod的参数中。它是空的，我无法弄清楚为什么，因为当我在其他地方使用js数据时，我可以读取它上面的数据，但是将它发送到控制器是不行的。

谢谢！

编辑：我试图发送的对象是从viewLog方法获取的，看起来像这样

function viewLog() {
var localDbList = [localStorage.length];
for (var i = 0; i < localStorage.length; i++) {
    localDbList[i] = localStorage[i];
}
return localDbList;

}

我拥有的是localStorage的离线支持，我尝试将这里存储的值保存在我的服务器上

编辑：

Request URL:http://localhost:59848/Leads/RegisterOfflineEntries
Request Headers
Provisional headers are shown
Accept:*/*
Content-Type:json
Origin:http://localhost:59848<br>
Referer:http://localhost:59848/Leads/Register
User-Agent:Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.111 Safari/537.36
X-DevTools-Emulate-Network-Conditions-Client-Id:C8AD858A-EBA0-4A75-8D89-38956182F914
X-Requested-With:XMLHttpRequest
Request Payloadview source
[DAVE, DAVID, HAHA@MAIL.COM, , ]
0: "DAVE"
1: "DAVID"
2: "HAHA@MAIL.COM"
3: ""
4: ""

Answer 1

您尚未发布data所在的确切格式，在字符串化之前应该是这样的

var leadsStrings = new Array();
leadsStrings.push("string1");
leadsStrings.push("string2"); //etc
var dataObj = {
    leads: leadsStrings
};

data : dataObj 



function syncDB() {
var data = new Array();
if (localStorage.length != 0) {
    for (var i = 0; i < localStorage.length; i++) {
        data.push(localStorage[i]);
    }
    var dataObj = {
        leads: data
    };
        $.ajax({
            url: "/Leads/RegisterOfflineEntries",
            data: dataObj
        });
    }
}

你的意思是这样吗？

Answer 2

我不知道最初的问题是什么，从来没有真正解决过这个问题，而是我用API控制器做到了，所以它可以在后台顺利完成。如果感兴趣的话，请在下面编写代码

function OfflineSync() {
if (localStorage.length != 0) {
    $.post('/api/TrackApi', { '': localStorage.length });
    var formatedList = formatViewLog();
    for (var k = 0; k < formatedList.length; k += 5) {
        var value = JSON.stringify([
            formatedList[k],
            formatedList[k + 1],
            formatedList[k + 2],
            formatedList[k + 3],
            formatedList[k + 4]
        ]);
        $.post('/api/Offline', { '': value });
    }
}
localStorage.clear();
}

我的json对象结果为null，我不明白为什么

2 个答案: