使用APIController补充[FromUri]序列化

本文介绍了使用APIController补充[FromUri]序列化的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我们有多个API控制器接受GET请求，如下所示：

We have multiple API controllers accepting GET requests like so:

//FooController
public IHttpActionResult Get([FromUri]Foo f);
//BarController
public IHttpActionResult Get([FromUri]Bar b);

现在 - 我们希望（或者，被迫）在GET查询字符串中更改DateTime字符串格式全球

Now - we would like (or, are forced) to change DateTime string format within GET query string globally

"yyyy-MM-ddTHH:mm:ss" -> "yyyy-MM-ddTHH.mm.ss"

更改后所有 [FromUri] 包含 DateTime 类的类序列化失败。

After the change all [FromUri] serializations with classes containing DateTime types fail.

有没有办法补充 [FromUri] 序列化以接受查询字符串中的DateTime格式？或者我们是否必须为所有API参数构建自定义序列化以支持新的DateTime字符串格式？

Is there a way to complement [FromUri] serialization to accept the DateTime format in query string? Or do we have to build custom serialization for all API parameters to support new DateTime string format?

编辑：按要求提供的示例

public class Foo {
 public DateTime time {get; set;}
}

//FooController. Let's say route is api/foo
public IHttpActionResult Get([FromUri]Foo f);

GET api/foo?time=2017-01-01T12.00.00

推荐答案

要在所有模型上应用所有DateTime类型的行为，那么您需要编写。

To apply this behavior that you want across all DateTime types on all models, then you'll want to write a custom binder for the DateTime type and apply it globally.

DateTime Model Binder

public class MyDateTimeModelBinder : IModelBinder
{
    public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
    {
        if (bindingContext.ModelType != typeof(DateTime))
            return false;

        var time = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);

        if (time == null)
            bindingContext.Model = default(DateTime);
        else
            bindingContext.Model = DateTime.Parse(time.AttemptedValue.Replace(".", ":"));

        return true;
    }
}

WebAPI配置

config.BindParameter(typeof(DateTime), new MyDateTimeModelBinder());

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