SpringMVC中如何设置请求路径变量的正则表达式匹配？

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java/** * 限制路径变量中的值只能是数字 * * 示例URL: * 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(); * return user; * } */

/** * * 限制路径变量里面的值只能是数字 * localhost:8080/test/getUser/1 * 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;

/** * localhost:8080/test/getUser02/1 * 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自由互联网站的支持！
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