@pathvariable啥作用

@PathVariable的作用是将URL中的占位符参数绑定到控制器的方法进行入参。通过使用@Pathvariable("XXX")注解，可以将URL中的{XXX}占位符参数绑定到对应的方法参数上。一般在GET请求中使用。 例如，使用@GetMapping("list/{page}/{limit}")定义了一个URL路径，可以通过@Pathvariable(value="page")和@Pathvariable(value="limit")将"page"和"limit"这两个占位符参数绑定到方法的参数上。另外，当参数名称和URL中变量名称一致时，还可以简写为@RequestParam("/do/{id}") public String Emp(@PathVariable Integer id)。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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