[英]HTTP POST request to C# Controller
I'm trying to make HTTP POST request to my C# controller, but I need to send in data an array, so I tried with JSON.stringify but when I start debugging, the input parameter in my controller is NULL? 我正在尝试向我的C#控制器发出HTTP POST请求,但是我需要向数据发送一个数组,所以我尝试使用JSON.stringify,但是当我开始调试时,我的控制器中的输入参数是NULL? I'm receiving a list from external API for weather forecast, so I need to create for each item in list new variable, that has some fields like : max and min temperature, description, humidity, pressure etc, and then of course fill these fields with data and add that variable to my array. 我正在从外部API接收天气预报列表,所以我需要为列表中的每个项目创建新变量,它有一些字段,如:最大和最小温度,描述,湿度,压力等,然后当然填写这些带有数据的字段并将该变量添加到我的数组中。 Then I need to pass this array to my controller so I could store it in my database... What type should I put in my controller so it would not be NULL? 然后我需要将这个数组传递给我的控制器,这样我就可以将它存储在我的数据库中...我应该在控制器中放入什么类型,这样它就不会是NULL? I'm totally new here so please help, any help is really more then welcome! 我是全新的,所以请帮助,任何帮助真的更受欢迎!
Below is code I have just to try : 以下是我要尝试的代码:
var myData = { id:100, description:"some text"};
var myDataArray= new Array();
myDataArray.push(myData);
$.ajax({
dataType: "json",
type: "POST",
url: "/Weather1/Weather_post",
contentType: "application/json; charset=utf-8",
data: JSON.stringify(myDataArray),
success: function (data) {
console.log(("OK"));
},
error: function (error)
{ console.log("NOT OK"); }
})
Controller: 控制器:
[HttpPost]
public JsonResult Weather_post(String MyModuleList)
Model binding has no idea what "MyModuleList" is. 模型绑定不知道“MyModuleList”是什么。 You can use a strongly typed model here and MVC will bind the JSON to it. 您可以在此处使用强类型模型,MVC会将JSON绑定到它。
Consider JSON: 考虑JSON:
var data = {
moduleList: [
{ id:100, description:"some text"}
];
};
and models: 和型号:
public class ModuleListModel
{
public List<ModuleModel> ModuleList { get; set; }
}
public class ModuleModel
{
public int Id { get; set; }
public string Description { get; set; }
}
and action: 和行动:
[HttpPost]
public JsonResult Weather_post(ModuleListModel model)
{
...
}
Combine that with @Timothy Shields' answer: 结合@Timothy Shields的回答:
You're missing processData: false in your ajax call. 您在ajax调用中缺少processData:false。 Without that, ajax is going to try to pack the data into the URL query string. 没有它,ajax将尝试将数据打包到URL查询字符串中。 (See here: http://api.jquery.com/jQuery.ajax/ ) (见这里: http : //api.jquery.com/jQuery.ajax/ )
and you should be good. 你应该好。
You're missing processData: false
in your ajax
call. 您在ajax
调用中缺少processData: false
。 Without that, ajax
is going to try to pack the data
into the URL query string. 没有它, ajax
将尝试将data
打包到URL查询字符串中。 (See here: http://api.jquery.com/jQuery.ajax/ ) (见这里: http : //api.jquery.com/jQuery.ajax/ )
If data
is { 'animal': 'elephant', 'count': 5 }
and processData
is true
(the default), ajax
will do the POST
to the URL /Weather1/Weather_post?animal=elephant&count=5
with an empty HTTP request body. 如果data
为{ 'animal': 'elephant', 'count': 5 }
且processData
为true
(默认值),则ajax
将使用空HTTP请求对URL /Weather1/Weather_post?animal=elephant&count=5
进行POST
身体。 This is why you want processData: false
. 这就是你想要processData: false
。
Try as follows: 尝试如下:
var myData = { id:100, description:"some text"};
var myDataArray= new Array();
myDataArray.push(myData);
var param = JSON.stringify(myDataArray);
$.ajax({
dataType: "json",
type: "POST",
url: "/Weather1/Weather_post",
contentType: "application/json; charset=utf-8",
data: {'MyModuleList': param },
success: function (data) {
console.log(("OK"));
},
error: function (error)
{ console.log("NOT OK"); }
})
You may need to pass the parameter name with the data. 您可能需要将参数名称与数据一起传递。 Something like: 就像是:
data: {'MyModuleList': JSON.stringify(myDataArray)},
See if this works for you. 看看这是否适合你。
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