如何将json对象数组发布到Web API [英] how to post json object array to a web api

问题描述

如何将JSON数组发布到Web API?它适用于单个对象.

How can I post a JSON array to a Web API? It's working for single object.

这是我尝试过的方法，但是控制器似乎返回了0而不是预期的3.

This is what I've tried, but the controller seems to be returning 0 rather than the expected 3.

这是我的JSON:

var sc = [{
              "ID": "5",
              "Patient_ID": "271655b8-c64d-4061-86fc-0d990935316a",
              "Table_ID": "Allergy_Trns",
              "Checksum": "-475090533",
              "LastModified": "2015-01-22T20:08:52.013"
          },
          {
              "ID": "5",
              "Patient_ID": "271655b8-c64d-4061-86fc-0d990935316a",
              "Table_ID": "Allergy_Trns",
              "Checksum": "-475090533",
              "LastModified": "2015-01-22T20:08:52.013"
          },
          {
              "ID": "5",
              "Patient_ID": "271655b8-c64d-4061-86fc-0d990935316a",
              "Table_ID": "Allergy_Trns",
              "Checksum": "-475090533",
              "LastModified": "2015-01-22T20:08:52.013"
          }];           

AJAX呼叫:

$.ajax({
           url: urlString,
           type: 'POST',
           data: sc,
           dataType: 'json',
           crossDomain: true,
           cache: false,
           success: function (data) { console.log(data); }
        });

Web API控制器:

Web API controller:

[HttpPost]
public string PostProducts([FromBody]List<SyncingControl> persons)
{
    return persons.Count.ToString(); // 0, expected 3
}

推荐答案

json中的错误Table_ID": "Allergy_Trns"应该为"Table_ID": "Allergy_Trns".

There is an error in the json Table_ID": "Allergy_Trns" should be "Table_ID": "Allergy_Trns".

缺少双引号.

更新

您需要确保将参数作为json发送，如下所示:

You need to make sure that you are sending your parameters as json as follows:

 $.ajax({
        url: urlString,
        type: 'POST',
        data: JSON.stringify(sc),
        dataType: 'json',
        contentType: 'application/json',
        crossDomain: true,
        cache: false,
        success: function (data) { console.log(data); }
    });

请注意JSON.stringify(sc)，@ herbi在指定内容类型方面也部分正确.

Notice the JSON.stringify(sc), @herbi is partly correct too about specifying a content type.

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