SpringMVC 指定返回页面的两种方式

GreetingController.java

@RequestMapping("/")
public ModelAndView welcome (ModelMap model) {
    ModelAndView view = new ModelAndView("index");
    model.addAttribute("introSelf", "I'm Spring, I'm Coming.");
    return view;
}

@RequestMapping("/")
public String welcome (ModelMap model) {
    model.addAttribute("introSelf", "I'm Spring, I'm Coming.");
    return "index";
}

//ModelMap 对象可以用来存储回传变量