SpringMVC中如何在路径变量里面写正则表达式
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/** * * 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 PageThis 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"
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