C# 如何调用具有多个参数的 Post api
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How to call a Post api with multiple parameters
提问by NewBie
How can i call a Post method with multiple parameters using HttpClient?
如何使用 HttpClient 调用具有多个参数的 Post 方法？
I am using the following code with a single parameter:
我使用带有单个参数的以下代码：
var paymentServicePostClient = new HttpClient();
paymentServicePostClient.BaseAddress =
new Uri(ConfigurationManager.AppSettings["PaymentServiceUri"]);
PaymentReceipt payData = SetPostParameter(card);
var paymentServiceResponse =
paymentServicePostClient.PostAsJsonAsync("api/billpayment/", payData).Result;
I need to add another parameter userid. How can i send the parameter along with the 'postData'?
我需要添加另一个参数 userid。如何将参数与“postData”一起发送？
WebApi POST method prototype:
WebApi POST 方法原型：
public int Post(PaymentReceipt paymentReceipt,string userid)
采纳答案by cuongle
UserIdshould be in query string:
UserId应该在查询字符串中：
var paymentServiceResponse = paymentServicePostClient
.PostAsJsonAsync("api/billpayment?userId=" + userId.ToString(), payData)
.Result;
回答by Darin Dimitrov
Simply use a view model on your Web Api controller that contains both properties. So instead of:
只需在包含这两个属性的 Web Api 控制器上使用视图模型。所以而不是：
public HttpresponseMessage Post(PaymentReceipt model, int userid)
{
...
}
use:
用：
public HttpresponseMessage Post(PaymentReceiptViewModel model)
{
...
}
where the PaymentReceiptViewModelwill obviously contain the useridproperty. Then you will be able to call the method normally:
其中PaymentReceiptViewModel显然包含的userid属性。然后就可以正常调用该方法了：
var model = new PaymentReceiptViewModel()
model.PayData = ...
model.UserId = ...
var paymentServiceResponse = paymentServicePostClient
.PostAsJsonAsync("api/billpayment/", model)
.Result;
回答by SethMW
In my case my existing ViewModels don't line up very nicely with the data I want to post to my WebAPI. So, instead of creating an entire new set of model classes, I posted an anonymous type, and had my Controller accept a dynamic.
在我的情况下，我现有的 ViewModel 与我想要发布到我的 WebAPI 的数据并没有很好地对齐。因此，我没有创建一整套新的模型类，而是发布了一个匿名类型，并让我的 Controller 接受了一个动态类型。
var paymentServiceResponse = paymentServicePostClient.PostAsJsonAsync("api/billpayment/", new { payData, userid }).Result;
public int Post([FromBody]dynamic model)
{
PaymentReceipt paymentReceipt = (PaymentReceipt)model.paymentReceipt;
string userid = (string)model.userid;
...
}
(I'd be curious to hear some feedback on this approach. It's definitely a lot less code.)
（我很想听听关于这种方法的一些反馈。它的代码肯定少了很多。）
