即使存在 JsonResult 方法也找不到页面

Question

我在 MVC 应用程序中工作，在调用 JsonResult 时出现 404 错误 AJAXly

我的要求：

http://localhost:60890/ED/Document/GetGroupDocumentMergedPath?groupDocuments=%5B%7B%22GroupDocumentId%22%3A1314%2C%22TemplateId%22%3A212%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A149%2C%22TemplateId%22%3A208%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A570%2C%22TemplateId%22%3A210%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A198%2C%22TemplateId%22%3A209%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A90%2C%22TemplateId%22%3A201%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A119%2C%22TemplateId%22%3A206%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A2431%2C%22TemplateId%22%3A217%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A1004%2C%22TemplateId%22%3A211%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A1686%2C%22TemplateId%22%3A213%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A2076%2C%22TemplateId%22%3A215%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A2469%2C%22TemplateId%22%3A302%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A5140%2C%22TemplateId%22%3A220%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A5020%2C%22TemplateId%22%3A221%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A5105%2C%22TemplateId%22%3A222%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A5066%2C%22TemplateId%22%3A223%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4039%2C%22TemplateId%22%3A225%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4159%2C%22TemplateId%22%3A235%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4283%2C%22TemplateId%22%3A245%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4343%2C%22TemplateId%22%3A249%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4399%2C%22TemplateId%22%3A250%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4463%2C%22TemplateId%22%3A252%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4856%2C%22TemplateId%22%3A256%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4906%2C%22TemplateId%22%3A257%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A4956%2C%22TemplateId%22%3A258%2C%22GroupDocumentType%22%3A0%7D%2C%7B%22GroupDocumentId%22%3A2499%2C%22TemplateId%22%3A215%2C%22GroupDocumentType%22%3A0%7D%5D&actionType=715&_=1456902108180

控制器：

 [HttpGet]
 public JsonResult GetGroupDocumentMergedPath(string groupDocuments, int actionType){}

AJAX 调用：

$.ajax({
    url: '/ED/Document/GetGroupDocumentMergedPath',
    type: "GET",
    data: { groupDocuments: JSON.stringify(groupDocuments), actionType: 715 },
    beforeSend: function () {
    },
    success: function (data) {
        //Business logic
    },
    complete: function () {
        checkedIds = {};
        ToggleDisabled("print", false);
    }
});

场景：

在 AJAX 调用中，我发送的列表平均包含 20 个具有三个属性的对象。

我的查询字符串长度超过允许的长度导致错误或我哪里出错了？

Answer 1

不要在单个字符串中传递多个详细信息。您必须创建一个 ViewModel 并传递给 Data 中模型的 serializeObject。所以通过 AJAX 将数据传递给 Method.

是安全且好的方法

如果你想从表单控件传递数据，那么序列化表单并传递它AJAX。

请查看以下示例。 Ajax 通话

$.fn.serializeObject = function () {
            var o = {};
            var a = this.serializeArray();
            $.each(a, function () {
                if (o[this.name] !== undefined) {
                    if (!o[this.name].push) {
                        o[this.name] = [o[this.name]];
                    }
                    o[this.name].push(this.value || '');
                } else {
                    o[this.name] = this.value || '';
                }
            });
            return o;
        };
    form = $('#groupDocuments').serializeObject(); // groupDocuments is form Id
    var data = JSON.stringify({ model: form });    
    $.ajax({
        url: '/ED/Document/GetGroupDocumentMergedPath',
        type: "GET",
        data: data,
        beforeSend: function () {
        },
        success: function (data) {
            //Business logic
        },
        complete: function () {
            checkedIds = {};
            ToggleDisabled("print", false);
        }
    });

JasonResult 方法

  [HttpPost]
    public JsonResult GetGroupDocumentMergedPath(GroupDocumentViewModel model)
    {
    // Your Code here       
    }

查看模型

public class GroupDocumentViewModel
{   
//All your property which you passing from view to controller via AJAX  
}

即使存在 JsonResult 方法也找不到页面

Page not found even when JsonResult method is present

ajax

asp.net-mvc

jquery

http-status-code-404

asp.net-mvc-4