技術標籤：Mybatis-plus

//同意返回結果
@Data
public class R {

    //這個註解是swagger的註解
    @ApiModelProperty(value = "是否成功")
    private Boolean success;

    @ApiModelProperty(value = "返回碼")
    private Integer code;

    @ApiModelProperty(value = "返回訊息")
    private String message;
 


    @ApiModelProperty(value = "返回資料")
    private Map<String, Object> data = new HashMap<String, Object>();

    private R() {}//構造方法私有化  防止在外部new

    public static R ok(){
        R r = new R();
        r.setSuccess(true);
        r.setCode(ResultCode.SUCCESS);
        r.setMessage
 
("成功");
        return r;
    }

    public static R error(){
        R r = new R();
        r.setSuccess(false);
        r.setCode(ResultCode.ERROR);
        r.setMessage("失敗");
        return r;
    }

    //下面四個方法返回this是鏈式程式設計  可以對類中的每一個屬性單獨設定
    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;
    }

}

public interface ResultCode {

    public static Integer SUCCESS = 20000;//成功

    public static Integer ERROR = 20001;//失敗


}