using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Web;
using
System.Web.Mvc;
using
System.Web.Mvc.Ajax;
using
System.IO;
namespace
MVC.Controllers
{
/// <summary>
/// Controller 类必须以字符串 "Controller" 做类名称的结尾,字符串 Controller 之前的字符串为 Controller 的名称,类中的方法名为 Action 的名称
/// </summary>
public
class
ControllerDemoController : Controller
{
// [NonAction] - 当前方法仅为普通方法,不解析为 Action
// [AcceptVerbs(HttpVerbs.Post)] - 声明 Action 所对应的 http 方法
/// <summary>
/// Action 可以没有返回值
/// </summary>
public
void
Void()
{
Response.Write(
string
.Format(
"<span style='color: red'>{0}</span>"
,
"void"
));
}
/// <summary>
/// 如果 Action 要有返回值的话,其类型必须是 ActionResult
/// EmptyResult - 空结果
/// </summary>
public
ActionResult EmptyResult()
{
Response.Write(
string
.Format(
"<span style='color: red'>{0}</span>"
,
"EmptyResult"
));
return
new
EmptyResult();
}
/// <summary>
/// Controller.Redirect() - 转向一个指定的 url 地址
/// 返回类型为 RedirectResult
/// </summary>
public
ActionResult RedirectResult()
{
return
base
.Redirect(
"~/ControllerDemo/ContentResult"
);
}
/// <summary>
/// Controller.RedirectToAction() - 转向到指定的 Action
/// 返回类型为 RedirectToRouteResult
/// </summary>
public
ActionResult RedirectToRouteResult()
{
return
base
.RedirectToAction(
"ContentResult"
);
}
/// <summary>
/// Controller.Json() - 将指定的对象以 JSON 格式输出出来
/// 返回类型为 JsonResult
/// </summary>
public
ActionResult JsonResult(
string
name)
{
System.Threading.Thread.Sleep(1000);
var jsonObj =
new
{ Name = name, Age =
new
Random().Next(20, 31) };
return
base
.Json(jsonObj);
}
/// <summary>
/// Controller.JavaScript() - 输出一段指定的 JavaScript 脚本
/// 返回类型为 JavaScriptResult
/// </summary>
public
ActionResult JavaScriptResult()
{
return
base
.JavaScript(
"alert('JavaScriptResult')"
);
}
/// <summary>
/// Controller.Content() - 输出一段指定的内容
/// 返回类型为 ContentResult
/// </summary>
public
ActionResult ContentResult()
{
string
contentString =
string
.Format(
"<span style='color: red'>{0}</span>"
,
"ContentResult"
);
return
base
.Content(contentString);
}
/// <summary>
/// Controller.File() - 输出一个文件(字节数组)
/// 返回类型为 FileContentResult
/// </summary>
public
ActionResult FileContentResult()
{
FileStream fs =
new
FileStream(Request.PhysicalApplicationPath +
"Content/loading.gif"
, FileMode.Open);
int
length = (
int
)fs.Length;
byte
[] buffer =
new
byte
[length];
fs.Read(buffer, 0, length);
fs.Close();
return
base
.File(buffer,
"image/gif"
);
}
// <summary>
/// Controller.File() - 输出一个文件(文件地址)
/// 返回类型为 FileContentResult
/// </summary>
public
ActionResult FilePathResult()
{
var path = Request.PhysicalApplicationPath +
"Content/loading.gif"
;
return
base
.File(path,
"image/gif"
);
}
// <summary>
/// Controller.File() - 输出一个文件(文件流)
/// 返回类型为 FileContentResult
/// </summary>
public
ActionResult FileStreamResult()
{
FileStream fs =
new
FileStream(Request.PhysicalApplicationPath +
"Content/loading.gif"
, FileMode.Open);
return
base
.File(fs,
@"image/gif"
);
}
/// <summary>
/// HttpUnauthorizedResult - 响应给客户端错误代码 401(未经授权浏览状态),如果程序启用了 Forms 验证,并且客户端没有任何身份票据,则会跳转到指定的登录页
/// </summary>
public
ActionResult HttpUnauthorizedResult()
{
return
new
HttpUnauthorizedResult();
}
/// <summary>
/// Controller.PartialView() - 寻找 View ,即 .ascx 文件
/// 返回类型为 PartialViewResult
/// </summary>
public
ActionResult PartialViewResult()
{
return
base
.PartialView();
}
/// <summary>
/// Controller.View() - 寻找 View ,即 .aspx 文件
/// 返回类型为 ViewResult
/// </summary>
public
ActionResult ViewResult()
{
// 如果没有指定 View 名称,则寻找与 Action 名称相同的 View
return
base
.View();
}
/// <summary>
/// 用于演示处理 JSON 的
/// </summary>
public
ActionResult JsonDemo()
{
return
View();
}
/// <summary>
/// 用于演示上传文件的
/// </summary>
public
ActionResult UploadDemo()
{
return
View();
}
/// <summary>
/// 用于演示 Get 方式调用 Action
/// id 是根据路由过来的;param1和param2是根据参数过来的
/// </summary>
[AcceptVerbs(HttpVerbs.Get)]
public
ActionResult GetDemo(
int
id,
string
param1,
string
param2)
{
ViewData[
"ID"
] = id;
ViewData[
"Param1"
] = param1;
ViewData[
"Param2"
] = param2;
return
View();
}
/// <summary>
/// 用于演示 Post 方式调用 Action
/// </summary>
/// <remarks>
/// 可以为参数添加声明,如:[Bind(Include = "xxx")] - 只绑定指定的属性(参数),多个用逗号隔开
/// [Bind(Exclude = "xxx")] - 不绑定指定的属性(参数),多个用逗号隔开
/// [Bind] 声明同样可以作用于 class 上
/// </remarks>
[AcceptVerbs(HttpVerbs.Post)]
public
ActionResult PostDemo(FormCollection fc)
{
ViewData[
"Param1"
] = fc[
"param1"
];
ViewData[
"Param2"
] = fc[
"param2"
];
// 也可以用 Request.Form 方式获取 post 过来的参数
// Request.Form 内的参数也会映射到同名参数。例如,也可用如下方式获取参数
// public ActionResult PostDemo(string param1, string param2)
return
View(
"GetDemo"
);
}
/// <summary>
/// 处理上传文件的 Action
/// </summary>
/// <param name="file1">与传过来的 file 类型的 input 的 name 相对应</param>
[AcceptVerbs(HttpVerbs.Post)]
public
ActionResult UploadFile(HttpPostedFileBase file1)
{
// Request.Files - 获取需要上传的文件。当然,其也会自动映射到同名参数
// HttpPostedFileBase hpfb = Request.Files[0] as HttpPostedFileBase;
string
targetPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory +
"Upload"
, Path.GetFileName(file1.FileName));
file1.SaveAs(targetPath);
return
View(
"UploadDemo"
);
}
}
}