天津市精神文明建设委员会网站/网站建设策划书案例

自定义枚举类

@Getter
public enum ReturnCodeEnum {/*** 操作失败**/RC999("999","操作XXX失败"),/*** 操作成功**/RC200("200","success"),/*** 服务降级**/RC201("201","服务开启降级保护,请稍后再试!"),/*** 热点参数限流**/RC202("202","热点参数限流,请稍后再试!"),/*** 系统规则不满足**/RC203("203","系统规则不满足要求,请稍后再试!"),/*** 授权规则不通过**/RC204("204","授权规则不通过,请稍后再试!"),/*** access_denied**/RC403("403","无访问权限,请联系管理员授予权限"),/*** access_denied**/RC401("401","匿名用户访问无权限资源时的异常"),RC404("404","404页面找不到的异常"),/*** 服务异常**/RC500("500","系统异常，请稍后重试"),RC375("375","数学运算异常，请稍后重试"),INVALID_TOKEN("2001","访问令牌不合法"),ACCESS_DENIED("2003","没有权限访问该资源"),CLIENT_AUTHENTICATION_FAILED("1001","客户端认证失败"),USERNAME_OR_PASSWORD_ERROR("1002","用户名或密码错误"),BUSINESS_ERROR("1004","业务逻辑异常"),UNSUPPORTED_GRANT_TYPE("1003","不支持的认证模式");/*** 自定义状态码*/private final String code;/*** 自定义描述信息*/private final String message;ReturnCodeEnum(String code, String message) {this.code = code;this.message = message;}/*** 遍历枚举* @param code 状态码* @return ReturnCodeEnum*/public static ReturnCodeEnum getReturnCodeEnum(String code) {for (ReturnCodeEnum element : ReturnCodeEnum.values()) {if (element.getCode().equalsIgnoreCase(code)) {return element;}}return null;}/*** 流式遍历枚举* @param code 状态码* @return ReturnCodeEnum*/public static ReturnCodeEnum getReturnCodeEnumByStream(String code) {return Arrays.stream(ReturnCodeEnum.values()).filter(x -> x.getCode().equalsIgnoreCase(code)).findFirst().orElse(null);}
}

统一定义返回值对象

@Data
@Accessors(chain = true)
public class ResultData<T> {/*** 结果状态 ,具体状态码参见枚举类ReturnCodeEnum*/private String code;/*** 描述信息*/private String message;/*** 数据*/private T data;/*** 当前时间*/private long timestamp ;public ResultData (){this.timestamp = System.currentTimeMillis();}public static <T> ResultData<T> success(T data) {ResultData<T> resultData = new ResultData<>();resultData.setCode(ReturnCodeEnum.RC200.getCode());resultData.setMessage(ReturnCodeEnum.RC200.getMessage());resultData.setData(data);return resultData;}public static <T> ResultData<T> fail(String code, String message) {ResultData<T> resultData = new ResultData<>();resultData.setCode(code);resultData.setMessage(message);resultData.setData(null);return resultData;}}