SpringMVC请求的路径变量里面写正则表达式的方法

SpringMVC请求的路径变量里面写正则表达式的方法

/**

*

* 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 /ehttp://rror, 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

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