参数校验: spring-boot-starter-validation

pom.xml

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-validation</artifactId></dependency>

应用

@PostMapping("/login")public Result login(@Pattern(regexp = "^\\S{5,15}$") String username,@Pattern(regexp = "^\\S{5,15}$") String password) {...........		}@PutMapping("/update")public Result update(@RequestBody @Validated User user) {userService.update(user);return Result.suc();}

实体类

@Data
public class User {@NotNull@TableIdInteger id;String username;@JsonIgnoreString password;@NotEmpty@Pattern(regexp="^\\S{1,10}$")String nickname;@NotEmpty@EmailString email;String userPic;LocalDateTime createTime;LocalDateTime updateTime;
}# 分组校验
@Data
public class Category {@NotNull(groups = Update.class)@TableId(type = IdType.AUTO)Integer id;@NotEmptyString categoryName;@NotNullString categoryAlias;Integer createUser;@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")LocalDateTime createTime;@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")LocalDateTime updateTime;public interface Add extends Default {}public interface Update extends Default {}
}