SpringMVC中Controller跳转到另一个Controller方法

1、直接Redirect后加 Controller/Action
Response.Redirect("/User/Edit");
// return Redirect("/User/Edit");
return RedirectToAction("about","Home");
Response.Redirect("/User/Edit");

2、直接return后加 Controller/Action
return Redirect("/User/Edit");

3、RedirectToAction方法，直接跳到一个action
return RedirectToAction("edit");

4、跳转的页并不在该Controller中
return RedirectToAction("about","Home");

5. redirect跳转
String url = "redirect:/test.do";
mav = new ModelAndView(url);