/** * * 限制路径变量里面的值只能是数字 * http://localhost:8080/test/getUser/1 * http://localhost:8080/test/getUser/a */@RequestMapping("/getUser/{id:\\d+}")public User getUser(@PathVariable(name = "id") String userId) { User user = new User(); user.setUsername(userId); user.setPassword(userId); return user;}public class User { private String username;/** * http://localhost:8080/test/getUser02/1 * http://localhost:8080/test/getUser02/a */@RequestMapping("/getUser02/{id}")public User getUser02(@PathVariable(name = "id") Integer userId) { User user = new User(); user.setUsername(String.valueOf(userId)); user.setPassword(String.valueOf(userId)); return user;}Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Sun Sep 22 10:57:52 CST 2019

There was an unexpected error (type=Bad Request, status=400).

Failed to convert value of type 'java.lang.String' to required type 'java.lang.Integer'; nested exception is java.lang.NumberFormatException: For input string: "a"

总结

以上所述是小编给大家介绍的SpringMVC请求的路径变量里面写正则表达式的方法,希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！
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