Spring @PathVariable注解

Spring in Action3 - 11.2.2处理RESTful URL

<span style="font-size:14px; font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"></span><pre name="code" class="java">@RequestMapping(value = "/{id}", method=RequestMethod.GET)
public String getBooking(@PathVariable("id") Long id, Model model) {
model.addAttribute(spitterService.getSpitterById(id));
return "spitter/view"
}

<span style="font-size:14px; font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">@PathVariable是用来对指定请求的URL路径里面的变量。</span>

{id}是一个占位符，通过它会将变量数据传递给方法，对应注解@PathVariable("id")中的id。

如果方法的参数名与路径的变量名（{id}中的id）相同，可以省略@@PathVariable的值，如下所示：

@RequestMapping(value = "/{id}", method=RequestMethod.GET)
public String getBooking(@PathVariable Long id, Model model) {
model.addAttribute(spitterService.getSpitterById(id));
return "spitter/view"
}

@PathVariable是用来对指定请求的URL路径里面的变量