WebAPI2服务的POST请求正文中的null字符串参数

I have an action defined in a WebAPI2 controller as follows:

我在WebAPI2控制器中定义了一个操作,如下所示:

    [HttpPost]
    [Route("DataImport/Product/")]
    public DataImportJournalEntry ImportData([FromBody] string base64)
    {
        return _dataImportService.Import(Convert.FromBase64String(base64));
    }

and I'm building a request, using RestSharp, as follows:

我正在使用RestSharp构建一个请求,如下所示:

    var base64 = {4Kb xml file loaded and encoded to base64}

    var client = new RestClient(Config.BaseAddress);

    var request = new RestRequest("DataImport/Product/", Method.POST);
    request.AddParameter("base64", base64, ParameterType.GetOrPost);
    request.AddHeader("accepts", "application/json");

    var response = client.Execute<DataImportJournalEntry>(request);

The routing is correct as the action is called but the base64 parameter is null on the server side?

调用操作时路由是正确的,但服务器端的base64参数为null?

1 个解决方案

#1

Found it..when using the FromBody attribute there can be only one parameter in the body and WebAPI is looking for it as ={value} not as you would expect {key}={value}. So I simply passed the parameter name as an empty string in the test:

找到它..当使用FromBody属性时,正文中只能有一个参数,而WebAPI正在查找= {value}而不是您所期望的{key} = {value}。所以我只是在测试中将参数名称作为空字符串传递:

...
var request = new RestRequest("DataImport/Product/", Method.POST);
request.AddParameter("", base64);
...

More details here: http://encosia.com/using-jquery-to-post-frombody-parameters-to-web-api/

更多细节:http://encosia.com/using-jquery-to-post-frombody-parameters-to-web-api/