在java8中枚举理解为对象的枚举，需要定义对象的构造函数，属性以及对象的名称和属性值。
定义枚举
public enum ResponseCode
{
/*定义了7个对象*/
CODE_200
("200"
, "
操作成功！！"
),
CODE_401
("401"
, "
未授权"
),
CODE_400
("400"
, "
请求错误"
),
CODE_403
("403"
, "
服务器拒绝请求"
),
CODE_405
("405"
, "
方法禁用"
),
CODE_409
("409"
, "
冲突"
),
CODE_500
("500"
, "
服务器内部错误"
);
/*两个属性*/
private String code
;
private String msg
;
/*构造函数*/
private ResponseCode
(String code
, String msg
) {
this.code
= code
;
this.msg
= msg
;
}
/*属性的setter和getter*/
public String getCode
() {
return this.code
;
}
public void setCode
(String code
) {
this.code
= code
;
}
public String getMsg
() {
return this.msg
;
}
public void setMsg
(String msg
) {
this.msg
= msg
;
}
}
使用
public <K
> ResponseDTO
<K
> success
() {
ResponseDTO
<K
> responseDTO
= new ResponseDTO
(ResponseCode
.CODE_200
.getCode
(), ResponseCode
.CODE_200
.getMsg
());
return responseDTO
;
}
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