Spring MVC的@RequestMapping多个URL映射到同一个方法

标记了@RequestMapping 注解的方法，更改 url 的时候特别有用
目的：一个方法对应多个 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" }