标签:return 自定义 处理 resultCode ExceptionEnum exceptionEnum ResultCode 异常 public
项目中一定会用到自定义异常
@Data public class BusinessException extends RuntimeException { private static final long serialVersionUID = 194906846739586856L; protected String code; protected String message; protected ResultCode resultCode; protected Object data; public BusinessException() { ExceptionEnum exceptionEnum = ExceptionEnum.getByEClass(this.getClass()); if (exceptionEnum != null) { resultCode = exceptionEnum.getResultCode(); code = exceptionEnum.getResultCode().getCode().toString(); message = exceptionEnum.getResultCode().getMessage(); } } public BusinessException(String message) { this(); this.message = message; } public BusinessException(String format, Object... objects) { this(); format = StringUtils.replace(format, "{}", "%s"); this.message = String.format(format, objects); } public BusinessException(String msg, Throwable cause, Object... objects) { this(); String format = StringUtils.replace(msg, "{}", "%s"); this.message= String.format(format, objects); } public BusinessException(ResultCode resultCode, Object data) { this(resultCode); this.data = data; } public BusinessException(ResultCode resultCode) { this.resultCode = resultCode; this.code = resultCode.getCode().toString(); this.message = resultCode.getMessage(); } }
异常处理
@ControllerAdvice public class ExceptionHandler { @ExceptionHandler(value = Exception.class) @ResponseBody public Result error(Exception e){ e.printStackTrace(); return new Result(false, StatusCode.ERROR, "执行出错"); } @ExceptionHandler(value = BusinessException.class) public Result errorHandle(BusinessException e){ return new Result(false, StatusCode.ERROR, e.message); } }
枚举 ResultCode
import lombok.Getter; @Getter public enum ResultCode { PARAM_IS_INVALID(1, "参数错误"), RESULE_DATA_NONE(2, "结果为空"), DATA_ALREADY_EXISTED(3, "记录已存在"), USER_NOT_LOGGED_IN(4, "用户未登录"), PERMISSION_NO_ACCESS(5, "没有访问权限"), INTERFACE_OUTTER_INVOKE_ERROR(6, "接口错误"), SYSTEM_INNER_ERROR(7, "系统内部错误"); private Integer code; private String message; ResultCode(Integer code, String message) { this.code = code; this.message = message; } }
枚举异常
public enum ExceptionEnum { /** * 无效参数 */ PARAMETER_INVALID(ParameterInvalidException.class, HttpStatus.BAD_REQUEST, ResultCode.PARAM_IS_INVALID), /** * 数据未找到 */ NOT_FOUND(DataNotFoundException.class, HttpStatus.NOT_FOUND, ResultCode.RESULE_DATA_NONE), /** * 数据已存在 */ CONFLICT(DataConflictException.class, HttpStatus.CONFLICT, ResultCode.DATA_ALREADY_EXISTED), /** * 用户未登录 */ UNAUTHORIZED(UserNotLoginException.class, HttpStatus.UNAUTHORIZED, ResultCode.USER_NOT_LOGGED_IN), /** * 无访问权限 */ FORBIDDEN(PermissionForbiddenException.class, HttpStatus.FORBIDDEN, ResultCode.PERMISSION_NO_ACCESS), /** * 远程访问时错误 */ REMOTE_ACCESS_ERROR(RemoteAccessException.class, HttpStatus.INTERNAL_SERVER_ERROR, ResultCode.INTERFACE_OUTTER_INVOKE_ERROR), /** * 系统内部错误 */ INTERNAL_SERVER_ERROR(InternalServerException.class, HttpStatus.INTERNAL_SERVER_ERROR, ResultCode.SYSTEM_INNER_ERROR); private Class<? extends BusinessException> eClass; private HttpStatus httpStatus; private ResultCode resultCode; ExceptionEnum(Class<? extends BusinessException> eClass, HttpStatus httpStatus, ResultCode resultCode) { this.eClass = eClass; this.httpStatus = httpStatus; this.resultCode = resultCode; } public Class<? extends BusinessException> getEClass() { return eClass; } public HttpStatus getHttpStatus() { return httpStatus; } public ResultCode getResultCode() { return resultCode; } public static boolean isSupportHttpStatus(int httpStatus) { for (ExceptionEnum exceptionEnum : ExceptionEnum.values()) { if (exceptionEnum.httpStatus.value() == httpStatus) { return true; } } return false; } public static boolean isSupportException(Class<?> z) { for (ExceptionEnum exceptionEnum : ExceptionEnum.values()) { if (exceptionEnum.eClass.equals(z)) { return true; } } return false; } public static ExceptionEnum getByHttpStatus(HttpStatus httpStatus) { if (httpStatus == null) { return null; } for (ExceptionEnum exceptionEnum : ExceptionEnum.values()) { if (httpStatus.equals(exceptionEnum.httpStatus)) { return exceptionEnum; } } return null; } public static ExceptionEnum getByEClass(Class<? extends BusinessException> eClass) { if (eClass == null) { return null; } for (ExceptionEnum exceptionEnum : ExceptionEnum.values()) { if (eClass.equals(exceptionEnum.eClass)) { return exceptionEnum; } } return null; } }
用户未登录Exception异常
public class UserNotLoginException extends BusinessException { }
标签:return,自定义,处理,resultCode,ExceptionEnum,exceptionEnum,ResultCode,异常,public 来源: https://www.cnblogs.com/alittlesmile/p/11253914.html
本站声明: 1. iCode9 技术分享网(下文简称本站)提供的所有内容,仅供技术学习、探讨和分享; 2. 关于本站的所有留言、评论、转载及引用,纯属内容发起人的个人观点,与本站观点和立场无关; 3. 关于本站的所有言论和文字,纯属内容发起人的个人观点,与本站观点和立场无关; 4. 本站文章均是网友提供,不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属;如您发现该文章侵犯了您的权益,可联系我们第一时间进行删除; 5. 本站为非盈利性的个人网站,所有内容不会用来进行牟利,也不会利用任何形式的广告来间接获益,纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。