webapi html字符串,c# 【MVC】WebApi返回各种类型(图片/json数据/字符串)

using System.IO;

///

/// WebApi返回图片

///

public HttpResponseMessage GetQrCode()

{

var imgPath = @"D:\ITdosCom\Images\itdos.jpg";

//从图片中读取byte

var imgByte = File.ReadAllBytes(imgPath);

//从图片中读取流

var imgStream = new MemoryStream(File.ReadAllBytes(imgPath));

var resp = new HttpResponseMessage(HttpStatusCode.OK)

{

Content = new ByteArrayContent(imgByte)

//或者

//Content = new StreamContent(stream)

};

resp.Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpg");

return resp;

}

///

/// WebApi返回json数据

///

public HttpResponseMessage GetQrCode()

{

var jsonStr = "{\"IsSuccess\":true,\"Data\":\"www.itdos.com\"}";

var result = new HttpResponseMessage(HttpStatusCode.OK)

{

Content = new StringContent(jsonStr, Encoding.UTF8, "text/json")

};

return result;

}

///

/// WebApi返回字符串

///

public HttpResponseMessage GetQrCode()

{

var str = "IT大师www.itdos.com";

var result = new HttpResponseMessage(HttpStatusCode.OK)

{

Content = new StringContent(str, Encoding.UTF8, "text/plain")

};

return result;

}

标签：WebApi,c#,HttpResponseMessage,Content,json,result,var,new

来源： https://www.cnblogs.com/yelanggu/p/10690146.html