java项目自定义公共结果对象类

1.先定义一个枚举类 ，里面是一些状态码和返回信息。
RespBeanEnum

@AllArgsConstructor
@Getter
public enum RespBeanEnum {

    //通用
    SUCCESS(200,"SUCCESS"),
    ERROR(500,"服务端异常"),

    //其他
    LOGIN_ERROR(500210,"用户名或密码不正确");
    //...
    private final Integer code;
    private final String message;


}

2.定义返回结果集
RespBean.java

@Data
@NoArgsConstructor
@AllArgsConstructor
public class RespBean {

    //状态码
    private long code;

    //提示信息
    private String message;

    //返回结果
    private Object obj;
   
    
    public static RespBean success(){
        return new RespBean(RespBeanEnum.SUCCESS.getCode(),RespBeanEnum.SUCCESS.getMessage(), null);
    }

    public static RespBean success(Object obj){
        return new RespBean(RespBeanEnum.SUCCESS.getCode(),RespBeanEnum.SUCCESS.getMessage(), obj);
    }

     
    public static RespBean error(RespBeanEnum respBeanEnum){
        return new RespBean(respBeanEnum.getCode(),respBeanEnum.getMessage(),null);
    }

    public static RespBean error(RespBeanEnum respBeanEnum,Object obj){
        return new RespBean(respBeanEnum.getCode(),respBeanEnum.getMessage(),obj);
    }

3.调用

return RespBean.error(RespBeanEnum.LOGIN_ERROR);
return RespBean.error(RespBeanEnum.ERROR);