如何获得JSON响应而不是XML? [英] How can I get a JSON response instead of XML?

问题描述

我只是创建一个新的WebApi项目并保留默认控制器:

I just create a new WebApi project and keep the default controller :

public class ValuesController : ApiController
{ 
    // GET api/values/5
    public string Get(int id)
    {
        return "value";
    }

    //other services...
}

当我尝试请求它时，我无法获得有效的JSON结果.

When I try to request it, I can't get a valid JSON result.

• 没有特定的标头=> application/xml 结果
• 具有 content-type 的标头分配给 application/json => application/xml 结果
• 已将 accept 分配给 application/json 的标头为我提供了正确的响应 content-type ，但格式不正确的JSON:"value".

• No specific header => application/xml result
• Header with content-type assigned to application/json => application/xml result
• Header with accept assigned to application/json gives me a correct response content-type but a malformed JSON : "value".

如何获取有效的JSON结果?

What is the way to get a valid JSON result ?

推荐答案

您将不得不使用

You will have to use JsonResult as your return type:

public class ValuesController : ApiController
{ 
    // GET api/values/5
    public JsonResult Get(int id)
    {
        object returnObject;

        // do here what you need to get the good object inside returnObject

        return this.Json(returnObject, JsonRequestBehavior.AllowGet);
    }

    // other services...
}

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