使用SpringMVC怎么实现对数据进行校验

public class User {  @NotBlank(message = "Username can not be empty")  private String username;  @NotBlank(message = "password can not be blank")  @Length(min = 6, max = 16, message = "The length of the password must be between 6 and 16 bits")  private String password;  @Range(min = 18, max = 60, message = "Age must be between 18 and 60 years old")  private Integer age;  @Pattern(regexp = "^1[3|4|5|7|8][0-9]{9}$", message = "Please enter the correct format of the phone number")  private String phone;  @Email(message = "Please enter a valid email address")  private String email;  // other...  }