public HttpResponseMessage GetCheckCode()
{
//返回验证码
HttpResponseMessage responsemessage = new HttpResponseMessage();
string sCode = string.Empty;
var imgStream = CommonTool.GetCheckCode(out sCode, 4);// new MemoryStream(File.ReadAllBytes(imgPath));
if (string.IsNullOrEmpty(sCode))
{
responsemessage = new HttpResponseMessage(HttpStatusCode.InternalServerError)
{
Content = new StringContent("验证码生成错误"),
ReasonPhrase = "验证码生成错误"
};
throw new HttpResponseException(responsemessage);
}
//将验证码放入header中，登录的时候获取头部内容与传入的值进行比较，也可以放到session里面
responsemessage = Request.CreateResponse(HttpStatusCode.OK);//new HttpResponseMessage(HttpStatusCode.OK);
//responsemessage.Content = new StreamContent(imgStream);
responsemessage.Content = new ByteArrayContent(imgStream.ToArray());
responsemessage.Headers.Add("X-CheckCode", sCode);
responsemessage.Content.Headers.ContentType = new MediaTypeHeaderValue("image/png");
return(responsemessage);
}