springmvc @RequestMapping路径正则匹配指定参数

Question

在@RequestMapping(value = "${api.version}/step/{param1}")中，我想param1的取值为 day、month 或 year,用正则该怎么写呢？

Answer 1

@RequestMapping(value = "${api.version}/step/{param1:^day\b|^week\b|^month\b|^year\b}")