Question

我正在尝试使用WinJS.xhr调用Web Api服务

当我执行请求时，除了数据（参数）未包含在请求中之外，所有内容都正确传递。

网络api

    [Route("api/Products/GetProductsByCategory")]
    [HttpGet]
    public IHttpActionResult GetProductsByCategory([FromBody]int categoryId)
    {
        try
        {
            //Some logic to return data
            return Json(_result.AsEnumerable<Models.ProductModel>());
        }
        catch (Exception ex)
        {
            //Log error to log file
            return Content(HttpStatusCode.InternalServerError, "There was a error loading the products.  View the log file for more details");
        }
    }

我用来执行实际请求的JavaScript

var url = "http://localhost/rauto.webapi/api/Products/GetProductsByCategory"
var parameters = 6
var options = {
                 url: url,
                 responseType: "json",
                 headers: { "Content-type": "application/json" },
                 data: JSON.stringify(parameters)
                }

 return WinJS.xhr(options).then(Success, Fail)

当我在Fiddler中跟踪请求时，我得到以下原始数据

请求：

GET http://localhost/rauto.webapi/api/Products/GetProductsByCategory HTTP/1.1
Accept: */*
Content-Type: application/json
Accept-Language: en-ZA,en;q=0.7,af;q=0.3
UA-CPU: AMD64
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; Trident/7.0; MSAppHost/2.0;     rv:11.0) like Gecko
Connection: Keep-Alive
Host: localhost

响应：

HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Content-Length: 2
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Fri, 05 Sep 2014 07:18:03 GMT

[]

为什么数据不附加在httpRequest的主体中？

Answer 1

我个人会让MVC处理它并在这种情况下使用路由。我相信它会是这样的：

[Route("api/Products/GetProductsByCategory/{categoryId:int}")]
[HttpGet]
public IHttpActionResult GetProductsByCategory(int categoryId)
{

只需将参数添加到JavaScript中的URL：

var url = "http://localhost/rauto.webapi/api/Products/GetProductsByCategory"
var parameters = 6
var options = {
                 url: url+'/'+parameters,
                 responseType: "json",
                 headers: { "Content-type": "application/json" },
                }

 return WinJS.xhr(options).then(Success, Fail)

WinJS.xhr没有将httpRequest中的数据传递给Web Api

1 个答案: