springboot配置统一返回

一、Springboot配置统一返回

1.编写配置类：

/**
 * 统一返回结果的类
 * @author song
 * @since 2021-08-08 18:50:36
 */

@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;
    }
}

2.配置结果返回的code值

/**
 * 结果返回code
 * @author song
 * @since 2021-08-08 18:50:36
 */
public interface ResultCode {
    //成功
    Integer SUCCESS = 20000;
    //失败
    Integer ERROR = 20001; 
}