1.自定义异常类

import lombok.Data;

@Data
public class UserException extends RuntimeException {
    private Long id;

    public UserException(Long id) {
        super("user not exist");
        this.id = id;
    }

    public UserException(String message, Long id) {
        super(message);
        this.id = id;
    }
}
自定义异常类

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