Spring MVC的@RequestMapping多個URL映射到同一個方法

標記了@RequestMapping 注解的方法，更改 url 的時候特別有用
目的：一個方法對應多個 url

 

改之前 
@RequestMapping("")
 public String index(HttpServletRequest request, Model model) { return "index" } 

@RequestMapping("index") 
public String index(HttpServletRequest request, Model model) { return "index" } 

 

改之后 @RequestMapping(value={"index",""}) 
public String index(HttpServletRequest request, Model model) { return "index" }