Controller 中Action 返回值类型 及其 页面跳转的用法
原文地址：https://www.cnblogs.com/niaowo/p/3777815.html
•Controller 中Action 返回值类型
View – 返回 ViewResult，相当于返回一个View 页面.
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Redirect -返回 RedirectResult，跳转到特定的URL.
//return Redirect("/test/index");
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RedirectToAction -返回 RedirectToRouteResult ，跳转到其他Action.
return RedirectToAction("About");
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RedirectToRoute -返回 RedirectToRouteResult，跳转到其他URL.
return RedirectToRoute(new { controller = "Test", action = "index",page = 2,id=2,name=3}); //http://localhost:2587/Test/index/2?page=2&name=3
RouteValueDictionary rvd = new RouteValueDictionary
{
{"controller", "Test"},
{"action", "index"},
{"page", 2},
{"id", 2},
{"name", 3}
};
return RedirectToRoute(rvd);
//return Redirect("/test/index");
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Json -返回 JsonResult.
public JsonResult Test3()
{
List
list.Add("2");
list.Add("3");
return Json(list,JsonRequestBehavior.AllowGet);
}
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JavaScriptResult -返回 JavaScriptResult.
public ActionResult Test3()
{
return JavaScript("");
}
JavaScriptResult
查了很多的资料都没有发现JavaScriptResult的实际用法
个人不建议使用JavaScriptResult的文章，因为这样脚本和后台不分离。
很多文章是按一下方式来使用JavaScriptResult的：
Action
public ActionResult GetTime()
{
var script = string.Format("$('#myPnl').html('{0}');", DateTime.Now);
return JavaScript(script);
}
View
@Html.ActionLink("Click Me", "GetTime")
这样的执行结果是页面并不会执行这一段script，而是将这段script作为文件Response出来。
既然执行GetTime这个Action其实取得script这段脚本的文件，那么就可以这样来使用：
这样的结果就是该script段可以调用GetTime Action返回的代码段。
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Content -返回 ContentResult action result.
////// http://localhost:1847/Demo/ContentResultDemo /// ///public ActionResult ContentResultDemo() { string contentString = "ContextResultDemo!"; return Content(contentString); }
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File -返回 FileContentResult, FilePathResult, or FileStreamResult .
////// http://localhost:1847/Demo/FileContentResultDemo /// ///public ActionResult FileContentResultDemo() { FileStream fs = new FileStream(Server.MapPath(@"/resource/Images/1.gif"), FileMode.Open, FileAccess.Read); byte[] buffer = new byte[Convert.ToInt32(fs.Length)]; fs.Read(buffer, 0, Convert.ToInt32(fs.Length) ); return File(buffer, @"image/gif"); } /// /// http://localhost:1847/Demo/FilePathResultDemo /// ///public ActionResult FilePathResultDemo() { //可以将一个jpg格式的图像输出为gif格式 return File(Server.MapPath(@"/resource/Images/2.jpg"), @"image/gif"); } /// /// http://localhost:1847/Demo/FileStreamResultDemo /// ///public ActionResult FileStreamResultDemo() { FileStream fs = new FileStream(Server.MapPath(@"/resource/Images/1.gif"), FileMode.Open, FileAccess.Read); return File(fs, @"image/gif"); }