要處理什么異常:
1,基礎異常(參數異常),輸入為空,格式不正確。
2,業務異常,未實現效果,拋出異常給予提示。如:圖片上傳影像庫,未正確返回影像id;
// 上傳至影像庫,得到影像ID String imageId = pdfPy.pdf(pySzCisReportRoot, pyQueryBean.getUmName()); if (StringUtils.isEmpty(imageId)) { throw new CreditException(PyCreditServiceErrorEnum.FAILED_UPLOAD_UDMP.getCode(), PyCreditServiceErrorEnum.FAILED_UPLOAD_UDMP.getMsg()); }
3,服務異常,調用別人接口,服務超時,服務不可用(未能正常返回接口返回Document)
4,不知道的什么異常。除了以上異常外,給別人提供接口,不知道哪里就異常了。
怎么處理:
當然是Service業務邏輯處理時往外拋,在Controller中捕獲。
Contrller代碼:
把以上提到的四種異常分2類處理
先捕獲123業務異常,再捕獲未知異常。
/** * 反欺詐 * * @return com.pingan.credit.model.ResponseResult<com.pingan.credit.model.py.CisReportRoot> * @Description: 鵬元征信 反欺詐接口 * @author chiyuanzhen743 * @date 2017/8/25 17:30 */ @RequestMapping(path = "/queryPy", method = {RequestMethod.GET, RequestMethod.POST}) @ResponseBody public ResponseResult<CisReportRoot> queryPy(HttpServletRequest request, PyQueryBean pyQueryBean) { ResponseResult<CisReportRoot> responseResult = new ResponseResult<>(); try { CisReportRoot cisReportRoot = pyQueryService.queryCisReport(pyQueryBean); responseResult.setData(cisReportRoot); responseResult.setRefID(pyQueryBean.getRefID()); responseResult.setTimestamp(DateUtil.getTimeStamp().toString()); responseResult.setRet(SUCCESS); } catch (CreditException e) { responseResult.setErrorCode(e.getErrorCode()); responseResult.setRet(SUCCESS); responseResult.setErrorMsg(e.getMessage()); } catch (Exception e) { responseResult.setErrorCode(PyCreditServiceErrorEnum.SYSTEM_ERROR.getCode()); responseResult.setRet(FAILED); responseResult.setErrorMsg(PyCreditServiceErrorEnum.SYSTEM_ERROR.getMsg()); } return responseResult; }
一,應用場景
1,請求參數驗證
代碼:
/** * @Description: 查詢參數校驗 * @author chiyuanzhen743 * @date 2017/8/24 14:15 */ private void isQueryBeanParametersIllegal(PyQueryBean pyQueryBean) throws Exception { if (StringUtils.isEmpty(pyQueryBean.getName()) || StringUtils.isEmpty(pyQueryBean.getDocumentNo()) || StringUtils.isEmpty(pyQueryBean.getPhone())) { throw new CreditException(PyCreditServiceErrorEnum.CHECK_EMPTY_PARAMETERS.getCode(), PyCreditServiceErrorEnum.CHECK_EMPTY_PARAMETERS.getMsg()); } if (!ValidatorUtil.isPhoneLegal(pyQueryBean.getPhone())) { throw new CreditException(PyCreditServiceErrorEnum.CHECK_PHONE.getCode(), PyCreditServiceErrorEnum.CHECK_PHONE.getMsg()); } if (!ValidatorUtil.validateCard(pyQueryBean.getDocumentNo())) { throw new CreditException(PyCreditServiceErrorEnum.CHECK_DOCUMENTNO.getCode(), PyCreditServiceErrorEnum.CHECK_DOCUMENTNO.getMsg()); } if (!ValidatorUtil.isChineseNameLegal(pyQueryBean.getName())) { throw new CreditException(PyCreditServiceErrorEnum.CHECK_NAME.getCode(), PyCreditServiceErrorEnum.CHECK_NAME.getMsg()); } if (StringUtils.isEmpty(pyQueryBean.getTimestamp())) { throw new CreditException(PyCreditServiceErrorEnum.CHECK_TIMESTAMP.getCode(), PyCreditServiceErrorEnum.CHECK_TIMESTAMP.getMsg()); } if (StringUtils.isEmpty(pyQueryBean.getUmName())) { throw new CreditException(PyCreditServiceErrorEnum.CHECK_UMNAME.getCode(), PyCreditServiceErrorEnum.CHECK_UMNAME.getMsg()); } if (pyQueryBean.getQueryType() == null || pyQueryBean.getQueryType() == 0) { throw new CreditException(PyCreditServiceErrorEnum.EMPTY_QUERYTYPE.getCode(), PyCreditServiceErrorEnum.EMPTY_QUERYTYPE.getMsg()); } if (StringUtils.isEmpty(pyQueryBean.getQueryReasonCode())) { throw new CreditException(PyCreditServiceErrorEnum.EMPTY_QUERYREASONCODE.getCode(), PyCreditServiceErrorEnum.EMPTY_QUERYREASONCODE.getMsg()); } if (StringUtils.isEmpty(pyQueryBean.getQueryWay())) { throw new CreditException(PyCreditServiceErrorEnum.EMPTY_QUERY_WAY.getCode(), PyCreditServiceErrorEnum.EMPTY_QUERY_WAY.getMsg()); } if (pyQueryBean.getQueryReason() == null || StringUtils.isEmpty(pyQueryBean.getQueryReason())) { throw new CreditException(PyCreditServiceErrorEnum.EMPTY_QUERY_REASON.getCode(), PyCreditServiceErrorEnum.EMPTY_QUERY_REASON.getMsg() + " " + pyQueryBean.getQueryReasonCode()); } }
2,具體業務處理失敗
如:生成PDF失敗,圖片上傳至影像平台失敗。
二,定義異常處理類
代碼:
public class CreditException extends RuntimeException { private static final long serialVersionUID = 1L; /** * 錯誤編碼 */ private String errorCode; /** * 消息是否為屬性文件中的Key */ private boolean propertiesKey = true; /** * 構造一個基本異常. * * @param message 信息描述 */ public CreditException(String message) { super(message); } /** * 構造一個基本異常. * * @param errorCode 錯誤編碼 * @param message 信息描述 */ public CreditException(String errorCode, String message) { this(errorCode, message, true); } /** * 構造一個基本異常. * * @param errorCode 錯誤編碼 * @param message 信息描述 */ public CreditException(String errorCode, String message, Throwable cause) { this(errorCode, message, cause, true); } /** * 構造一個基本異常. * * @param errorCode 錯誤編碼 * @param message 信息描述 * @param propertiesKey 消息是否為屬性文件中的Key */ public CreditException(String errorCode, String message, boolean propertiesKey) { super(message); this.setErrorCode(errorCode); this.setPropertiesKey(propertiesKey); } /** * 構造一個基本異常. * * @param errorCode 錯誤編碼 * @param message 信息描述 */ public CreditException(String errorCode, String message, Throwable cause, boolean propertiesKey) { super(message, cause); this.setErrorCode(errorCode); this.setPropertiesKey(propertiesKey); } /** * 構造一個基本異常. * * @param message 信息描述 * @param cause 根異常類(可以存入任何異常) */ public CreditException(String message, Throwable cause) { super(message, cause); } public String getErrorCode() { return errorCode; } public void setErrorCode(String errorCode) { this.errorCode = errorCode; } public boolean isPropertiesKey() { return propertiesKey; } public void setPropertiesKey(boolean propertiesKey) { this.propertiesKey = propertiesKey; } }
三,定義異常種類-枚舉類
代碼:
public enum PyCreditServiceErrorEnum {
/********************** 基礎異常碼 **********************/ EMPTY_PARAMETERS("10001", "參數為空,請校驗參數"), CHECK_EMPTY_PARAMETERS("10002","請檢查查詢條件,姓名、身份證號以及電話號,參數為空"), CHECK_PHONE("10003","請輸入正確格式手機號"), CHECK_DOCUMENTNO("10004","請輸入正確格式的身份證號碼"), CHECK_NAME("10005","請輸入正確格式的姓名"), CHECK_TIMESTAMP("10006","請輸入時間戳"), CHECK_UMNAME("10007","請輸入UM帳號"), EMPTY_NAME_PHONE("10008","請檢查查詢條件,姓名,身份證號為空"), EMPTY_QUERYTYPE("10009", "請設置查詢類型"), EMPTY_QUERYREASONCODE("10010", "請設置查詢原因碼值"), EMPTY_QUERY_WAY("10011", "請設置查詢方式"), EMPTY_CHANNEL_NAME("10012", "請設置渠道名稱"), EMPTY_QUERY_REASON("10013", "無此查詢原因"), /********************** 業務異常 **********************/ FAILED_UPLOAD_UDMP("20001","雲平台服務失效"), FAILED_CREATE_PDF("20002","生成PDF失敗"), FAILED_UPLOAD_IM("20003","上傳至影像庫失敗"), IDENTITY_NOT_MATCH("20004","身份不匹配"), NOT_FOUND_PDF("20005","無對應文檔ID的PDF文件或文檔已過期,請重新根據姓名身份證號進行查詢"), FAILED_SAVE_PY_RESULT("20006","鵬元結果保存失敗"), /********************** 鵬元服務商接口不可用 **********************/ PY_SYS_ERROR("30001","鵬元服務不可用"), PY_SYS_TIMEOUT("30002","鵬元服務超時"), /********************** 系統異常 **********************/ SYSTEM_ERROR("50000","接口未知異常"); private String code; private String msg; PyCreditServiceErrorEnum(String code, String text) { this.code = code; this.msg = text; } public String getCode() { return code; } public void setCode(String code) { this.code = code; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } }