Action

#region 1.0 ContentResult - 返回字符串  Response.Write("");
        /// <summary>
        /// 1.0 ContentResult
        /// </summary>
        /// <returns></returns>
        public ActionResult ContentStr()
        {
            //1.调用 控制器类 提供的便捷方法 创建 ContentResult对象
            //return Content("我是字符串~~你懂吗？");
            //2.手动创建 ContentResult 对象
            return new ContentResult()
            {
                Content = "<h1>小白~~我懂你！</h1>",
                ContentType = "text/html",
                ContentEncoding = System.Text.Encoding.Default
            };
        } 
        #endregion

 #region 2.0 EmptyResult
        /// <summary>
        /// 2.0 EmptyResult
        /// </summary>
        /// <returns></returns>
        public ActionResult EmptyResult()
        {
            return new EmptyResult();
        } 
        #endregion

        #region 3.0 FileResult - 输出文件流
        public ActionResult FileResult()
        {
            byte[] arrFile = null;
            using (Image img = new Bitmap(90, 30))
            {
                using (Graphics g = Graphics.FromImage(img))
                {
                    g.DrawString("我是验证码", new Font("微软雅黑", 12), Brushes.White, 1, 1);
                }
                //img.Save(Response.OutputStream);
                //将图片 装入 内存流
                using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
                {
                    img.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                    //将 内存流数据 转成 byte数组
                    arrFile = ms.ToArray();
                }
            }
            return File(arrFile, "image/jpeg");
            //return new FileContentResult(arrFile, "image/jpeg");
        } 
        #endregion

        #region 4.0 指定 输出 状态码 错误页 - HttpStatusCodeResult
        /// <summary>
        /// 4.0 指定 输出 状态码 错误页
        /// </summary>
        /// <returns></returns>
        public ActionResult HttpStatus()
        {
            return new HttpStatusCodeResult(500);
        } 
        #endregion

#region 5.0 JavaScript 返回 js 代码，只能 针对 浏览器 script标签 时，才执行
        /// <summary>
        /// JavaScript 返回 js 代码，只能 针对 浏览器 script标签 时，才执行
        /// </summary>
        /// <returns></returns>
        public ActionResult JSResult()
        {
            return JavaScript("alert('小白来了~~~~~~~！');");
        } 
        #endregion

        #region 6.0 JsonResult-内部就是使用 JavaScriptSerializer 将对象 序列化成 json字符串
        /// <summary>
        /// JsonResult-内部就是使用 JavaScriptSerializer 将对象 序列化成 json字符串
        /// </summary>
        /// <returns></returns>
        public ActionResult Json2()
        {
            Models.BlogArticleCate cate = new Models.BlogArticleCate()
            {
                Id = 1,
                Name = "7期班",
                Remark = "7期班备注",
                Addtime = DateTime.Now,
                IsDel = false,
                Statu = 4,
                BlogUser = new Models.BlogUser() { Id = 2, LoginName = "xiaobai" }
            };
            //如果针对 get 请求，需要通过 第二个参数 设置；因为默认 Json方法拒绝 get请求。
            return Json(cate, JsonRequestBehavior.AllowGet);
        } 
        #endregion

        #region 7.0 RedirectResult - 内部就是使用：Response.Redirect(url, flag2);
        /// <summary>
        /// RedirectResult - 内部就是使用：Response.Redirect(url, flag2);
        /// </summary>
        /// <returns></returns>
        public ActionResult RedirectTo()
        {
            return Redirect("/home/index");
        }    
        #endregion