Springboot统一返回结果工具类（笔记分享）

- 日理万妓 2022-11-18 10:48 473阅读 0赞

在日常开发中需要统一结果返回，将所有接口的数据格式封装格式统一，这样有利于前后端的开发，  
统一一个返回的结果模板,：

/** * @author thunder * @version 1.0.0 * @description */
    public interface ResultCode { 
    
        public static Integer SUCCESS = 20000; //成功
    
        public static Integer ERROR = 20001; //失败
    }

编辑返回结果的模板：

/** * @author thunder * @version 1.0.0 * @description */
    @Data
    public class R { 
        @ApiModelProperty(value = "是否成功")
        private Boolean success;
    
        @ApiModelProperty(value = "返回码")
        private Integer code;
    
        @ApiModelProperty(value = "返回消息")
        private String message;
    
        @ApiModelProperty(value = "返回数据")
        private Map<String, Object> data = new HashMap<String, Object>();
    
        //把构造方法私有
        private R() { }
    
        //成功静态方法
        public static R ok() { 
            R r = new R();
            r.setSuccess(true);
            r.setCode(ResultCode.SUCCESS);
            r.setMessage("成功");
            return r;
        }
    
        //失败静态方法
        public static R error() { 
            R r = new R();
            r.setSuccess(false);
            r.setCode(ResultCode.ERROR);
            r.setMessage("失败");
            return r;
        }
    
        public R success(Boolean success){ 
            this.setSuccess(success);
            return this;
        }
    
        public R message(String message){ 
            this.setMessage(message);
            return this;
        }
    
        public R code(Integer code){ 
            this.setCode(code);
            return this;
        }
    
        public R data(String key, Object value){ 
            this.data.put(key, value);
            return this;
        }
    
        public R data(Map<String, Object> map){ 
            this.setData(map);
            return this;
        }
    }

当使用的时候是这样的：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NzM5NzA2_size_16_color_FFFFFF_t_70]  
展示的结果是这样的;  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NzM5NzA2_size_16_color_FFFFFF_t_70 1]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NzM5NzA2_size_16_color_FFFFFF_t_70]: /images/20221022/30f1ebf9dfad4bdfa31fb5a6cd24b26f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NzM5NzA2_size_16_color_FFFFFF_t_70 1]: /images/20221022/bcaf2f346b754105b985b071b80e928a.png