/*** @Author: ivan* @Description: 服务状态代码* @Date: 18/11/26* @Modified By;*/
public enum ResponseStatus {OK(0, "成功"),ERROR(-1, "服务错误");private int value;private String message;ResponseStatus(int value, String message){this.value = value;this.message = message;}public int getValue() {return value;}public String getMessage() {return message;}}

/*** @Author: ivan* @Description: 业务状态代码* @Date: 18/11/26* @Modified By;*/
public enum ResponseCode {FORMAL(0, "业务正常"),INVALID_PARAM(100000, "参数错误"),UNKNOWN_FAILED(999999, "服务器未知错误"),SAVE_FAILED(888888, "保存失败"),UPDATE_FAILED(777777, "保存失败"),DELTE_FAILED(666666, "删除失败"),SEARCH_FLOW_FAILED(555555, "查询任务流的执行详情失败!");private int value;private String message;ResponseCode(int value, String message){this.value = value;this.message = message;}public int getValue() {return value;}public String getMessage() {return message;}}

/*** @Author: ivan* @Description: 返回值封装* @Date: Created in 17:26 18/11/26* @Modified By:*/
public class Response<T> implements Serializable {private int status;private int code;private String message;private Object data;public Response(ResponseStatus status, ResponseCode code, String message, T data) {this.setStatus(status);this.setCode(code);this.setMessage(message);this.setData(data);}public static <T> Response<T> buildSuccessResponse(T data) {return new Response<T>(ResponseStatus.OK, ResponseCode.FORMAL, null, data);}public static <T> Response<T> buildFailResponse(ResponseStatus responseStatus, ResponseCode responseCode,String message, T data) {return new Response<T>(responseStatus, responseCode, message, data);}public int getStatus() {return status;}public void setStatus(ResponseStatus status) {this.status = status.getValue();}public int getCode() {return code;}public void setCode(ResponseCode code) {this.code = code.getValue();}public String getMessage() {return message;}public void setMessage(String message) {this.message = message;}public Object getData() {return data;}public void setData(Object data) {this.data = data;}
}

/*** @Author: ivan* @Description: 全局异常处理advice* @Date: Created in 20:21 18/11/26* @Modified By:*/
@ControllerAdvice
public class GlobalExceptionHandler {private static final Logger logger = LoggerFactory.getLogger(GlobalExceptionHandler.class);/***   处理全局异常handler, ApiException为业务异常, 其他为服务器未知异常*/@ExceptionHandler(Exception.class)@ResponseBodypublic Response<String> handle(Exception e) {Response<String> response;if (e instanceof ApiException) {ApiException error = (ApiException) e;response = Response.buildFailResponse(ResponseStatus.ERROR, error.getResponseCode(),error.getResponseCode().getMessage(), null);} else {response = Response.buildFailResponse(ResponseStatus.ERROR, ResponseCode.UNKNOWN_FAILED,ResponseCode.UNKNOWN_FAILED.getMessage(), null);}logger.error("[Exception] message={}", e);return response;}/***  处理参数校验异常handler*/@ExceptionHandler(ValidationException.class)@ResponseBodypublic Response<String> handle(ValidationException e) {StringBuilder sb = new StringBuilder();if(e instanceof ConstraintViolationException){ConstraintViolationException error = (ConstraintViolationException) e;Set<ConstraintViolation<?>> violations = error.getConstraintViolations();for (ConstraintViolation<?> item : violations) {sb.append(item.getMessage());}}logger.error("[Validation] message={}", sb.toString(), e);return Response.buildFailResponse(ResponseStatus.ERROR, ResponseCode.INVALID_PARAM, sb.toString(), null);}}