Spring AOP結合注解實現(xiàn)接口層操作日志記錄
1.表和實體設計
1.實體設計
實體基類
@Data //映射將僅應用于其子類 @MappedSuperclass //指定要用于實體或映射超類的回調(diào)偵聽器類。此注釋可以應用于實體類或映射的超類。 @EntityListeners(AuditingEntityListener.class) public class BaseEntity implements Serializable { /** * @Id 注解標識 * @GeneratedValue(generator = "snowflakeIdIDGenerator") 指定生成策略 * @GenericGenerator(name = "snowflakeIdIDGenerator", strategy = "net.cqnews.base.idconfig.SnowflakeIdGenerator") * name 唯一的生成器名稱 * strategy 生成器策略可以是預定義的 Hibernate 策略或完全限定的類名。 * parameters 可選的生成器參數(shù)。 */ @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(columnDefinition = "bigint(20) COMMENT '主鍵Id'") private Long id; @CreatedBy @Column(columnDefinition = "bigint(20) COMMENT '創(chuàng)建人Id'") private Long createId; @CreatedDate @Column(columnDefinition = "datetime COMMENT '創(chuàng)建時間'") private Date createTime; @LastModifiedBy @Column(columnDefinition = "bigint(20) COMMENT '修改人Id'") private Long updateId; @LastModifiedDate @Column(columnDefinition = "datetime COMMENT '修改時間'") private Date updateTime; /** * 是否刪除 */ @Column(columnDefinition = "tinyint default 0 COMMENT '是否刪除,默認否'") private Boolean deleted = Boolean.FALSE; }
操作日志表實體
@Entity @Data //指定表名 @Table(name = "sys_oper_log") //表名注釋 @org.hibernate.annotations.Table(appliesTo = "sys_oper_log", comment = "系統(tǒng)操作日志表") public class SysOperLog extends BaseEntity { @Column(columnDefinition = "varchar(50) COMMENT '模塊標題'") private String title; @Column(columnDefinition = "varchar(255) COMMENT '接口功能描述'") private String description; @Column(columnDefinition = "varchar(100) COMMENT '方法名稱'") private String method; @Column(columnDefinition = "varchar(10) COMMENT '請求方式'") private String requestMethod; @Column(columnDefinition = "varchar(50) COMMENT '操作人員名稱'") private String operatorName; @Column(columnDefinition = "varchar(255) COMMENT '請求URL'") private String requestUrl; @Column(columnDefinition = "varchar(255) COMMENT '主機地址'") private String requestIp; @Column(columnDefinition = "varchar(255) COMMENT '操作地點'") private String operationLocation; @Column(columnDefinition = "varchar(2000) COMMENT '請求參數(shù)'") private String operatorParam; @Column(columnDefinition = "varchar(2000) COMMENT '返回參數(shù)'") private String jsonResult; @Enumerated(EnumType.STRING) @Column(columnDefinition = "varchar(20) COMMENT '操作狀態(tài)'") private StatusEnum status; @Column(columnDefinition = "varchar(2000) COMMENT '錯誤描述'") private String errorMsg; }
狀態(tài)枚舉類
@AllArgsConstructor @Getter public enum StatusEnum { SUCCESS, FAIL }
2.表結構設計
CREATE TABLE `sys_oper_log` ( `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主鍵Id', `create_id` bigint DEFAULT NULL COMMENT '創(chuàng)建人Id', `create_time` datetime DEFAULT NULL COMMENT '創(chuàng)建時間', `deleted` tinyint DEFAULT '0' COMMENT '是否刪除,默認否', `update_id` bigint DEFAULT NULL COMMENT '修改人Id', `update_time` datetime DEFAULT NULL COMMENT '修改時間', `description` varchar(255) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '接口功能描述', `error_msg` varchar(2000) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '錯誤描述', `json_result` varchar(2000) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '返回參數(shù)', `method` varchar(100) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '方法名稱', `operation_location` varchar(255) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '操作地點', `operator_name` varchar(50) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '操作人員名稱', `operator_param` varchar(2000) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '請求參數(shù)', `request_ip` varchar(255) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '主機地址', `request_method` varchar(10) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '請求方式', `request_url` varchar(255) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '請求URL', `status` varchar(20) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '操作狀態(tài)', `title` varchar(50) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '模塊標題', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=22 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='系統(tǒng)操作日志表';
2.日志注解
參考下面這段swagger接口文檔屬性的方式,在controller層日志記錄主要包含:接口所屬模塊、接口功能描述、請求參數(shù)、響應參數(shù)等
當然請求參數(shù)和響應參數(shù)不是每個接口都會包含的,因此這里注解設計了isSaveRequestData是否保存請求參數(shù)、isSaveResponseData是否保存響應的參數(shù)兩個字段便于靈活控制,當然我們在做日志記錄處理時也需要考慮為空的情況。
@Log(title = "測試模塊",description = "更新配置") @ApiOperation(value = "更新配置") @RequestMapping(value = "/update", method = RequestMethod.PUT) public BaseResult update(@Validated @RequestBody AuthConfigUpdateRequest request) { return BaseResult.judgeOperate(authConfigService.update(request)); }
@Target({ElementType.PARAMETER, ElementType.METHOD}) @Retention(RetentionPolicy.RUNTIME) @Documented public @interface Log { /** * 接口所屬模塊 */ public String title() default ""; /** * 接口功能描述 */ public String description() default ""; /** * 是否保存請求的參數(shù) */ public boolean isSaveRequestData() default true; /** * 是否保存響應的參數(shù) */ public boolean isSaveResponseData() default true; }
3.核心AOP類
我們設計的@Log注解主要用于修飾controller層,MyLogAspect主要就是對被@Log修飾的目標方法做增強處理,包含處理完請求后執(zhí)行:記錄目標方法正在執(zhí)行的日志、處理請求異常后執(zhí)行:記錄目標方法執(zhí)行錯誤的日志
@Slf4j @Aspect @Component @RequiredArgsConstructor public class MyLogAspect { private final SysOperLogService sysOperLogService; /** * 處理完請求后執(zhí)行 * * @param joinPoint 切入點對象 * @param controllerLog @Log注解對象 * @param jsonResult 返回值對象 */ @AfterReturning(pointcut = "@annotation(controllerLog)", returning = "jsonResult") public void doAfterReturning(JoinPoint joinPoint, Log controllerLog, Object jsonResult) { handleLog(joinPoint, controllerLog, jsonResult, null); } /** * 處理請求異常后執(zhí)行 * * @param joinPoint * @param controllerLog * @param e */ @AfterThrowing(pointcut = "@annotation(controllerLog)", throwing = "e") public void doAfterReturning(JoinPoint joinPoint, Log controllerLog, Throwable e) { handleLog(joinPoint, controllerLog, null, e); } /** * 記錄日志 * * @param joinPoint * @param controllerLog * @param e * @param jsonResult */ private void handleLog(JoinPoint joinPoint, Log controllerLog, Object jsonResult, Throwable e) { try { //獲取HttpServletRequest對象 HttpServletRequest request = getRequest(); //獲取ip地址 String requestIp = IpUtils.getIpAddr(request); //獲取請求地址 String requestUrl = request.getRequestURI(); //獲取類全名 String classFullName = joinPoint.getTarget().getClass().getName(); MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature(); //方法名稱 String methodName = methodSignature.getMethod().getName(); //POST、GET、PUT、DELETE String requestMethod = request.getMethod(); String operationLocation = AddressUtils.getRealAddressByIP(requestIp); //保存日志 SysOperLog sysOperLog = new SysOperLog(); sysOperLog.setStatus(StatusEnum.SUCCESS); sysOperLog.setOperationLocation(operationLocation); sysOperLog.setRequestIp(requestIp); sysOperLog.setRequestUrl(requestUrl); sysOperLog.setMethod(classFullName + "." + methodName); sysOperLog.setRequestMethod(requestMethod); //獲取注解中對方法的描述信息 用于Controller層注解 請求參數(shù)、響應參數(shù)設置 getControllerMethodDescription(joinPoint, controllerLog, sysOperLog, jsonResult); if (e != null) { //操作狀態(tài)(0正常 1異常) sysOperLog.setStatus(StatusEnum.FAIL); sysOperLog.setErrorMsg(StringUtils.substring(e.getMessage(), 0, 2000)); } sysOperLogService.saveOperatorLog(sysOperLog); } catch (Exception err) { if (e != null) { log.error("方法執(zhí)行后異常通知,執(zhí)行錯誤:{}", err.getMessage()); } else { log.error("方法執(zhí)行成功返回通知,執(zhí)行錯誤:{}", err.getMessage()); } } } /** * 獲取注解中對方法的描述信息 用于Controller層注解 * 請求參數(shù)、響應參數(shù)設置 * * @param joinPoint * @param controllerLog * @param sysOperLog * @param jsonResult */ private void getControllerMethodDescription(JoinPoint joinPoint, Log controllerLog, SysOperLog sysOperLog, Object jsonResult) { //接口所屬模塊 String title = controllerLog.title(); //接口功能描述 String description = controllerLog.description(); sysOperLog.setDescription(description); sysOperLog.setTitle(title); //判斷是否需要保存請求參數(shù) if (controllerLog.isSaveRequestData()) { // 獲取參數(shù)的信息,傳入到數(shù)據(jù)庫中。 setRequestValue(joinPoint, sysOperLog); } //判斷是否需要保存響應數(shù)據(jù) if (controllerLog.isSaveResponseData() && !ObjectUtils.isEmpty(jsonResult)) { sysOperLog.setJsonResult(StringUtils.substring(JSON.toJSONString(jsonResult), 0, 2000)); } } /** * 保存請求參數(shù) * * @param joinPoint * @param sysOperLog */ private void setRequestValue(JoinPoint joinPoint, SysOperLog sysOperLog) { //獲取請求參數(shù) String requestMethod = sysOperLog.getRequestMethod(); if (HttpMethod.PUT.name().equals(requestMethod) || HttpMethod.POST.name().equals(requestMethod)) { String params = argsArrayToString(joinPoint.getArgs()); sysOperLog.setOperatorParam(StringUtils.substring(params, 0, 2000)); } else if (HttpMethod.GET.name().equals(requestMethod)) { Map<?, ?> paramsMap = (Map<?, ?>) getRequest().getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE); log.info("paramsMap:{}", paramsMap); Map<String, String[]> parameterMap = getRequest().getParameterMap(); sysOperLog.setOperatorParam(StringUtils.substring(JSON.toJSONString(parameterMap), 0, 2000)); } else { Map<?, ?> paramsMap = (Map<?, ?>) getRequest().getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE); log.info("paramsMap:{}", paramsMap); sysOperLog.setOperatorParam(StringUtils.substring(paramsMap.toString(), 0, 2000)); } } /** * 參數(shù)拼裝 */ private String argsArrayToString(Object[] paramsArray) { String params = ""; if (paramsArray != null && paramsArray.length > 0) { for (Object o : paramsArray) { if (!ObjectUtils.isEmpty(o) && !isFilterObject(o)) { try { Object jsonObj = JSON.toJSON(o); params += jsonObj.toString() + " "; } catch (Exception e) { } } } } return params.trim(); } /** * 判斷是否需要過濾的對象。 * * @param o 對象信息。 * @return 如果是需要過濾的對象,則返回true;否則返回false。 */ @SuppressWarnings("rawtypes") public boolean isFilterObject(final Object o) { Class<?> clazz = o.getClass(); if (clazz.isArray()) { return clazz.getComponentType().isAssignableFrom(MultipartFile.class); } else if (Collection.class.isAssignableFrom(clazz)) { Collection collection = (Collection) o; for (Object value : collection) { return value instanceof MultipartFile; } } else if (Map.class.isAssignableFrom(clazz)) { Map map = (Map) o; for (Object value : map.entrySet()) { Map.Entry entry = (Map.Entry) value; return entry.getValue() instanceof MultipartFile; } } return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse || o instanceof BindingResult; } /** * 獲取request對象 * * @return */ private HttpServletRequest getRequest() { RequestAttributes attributes = RequestContextHolder.getRequestAttributes(); ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) attributes; HttpServletRequest request = servletRequestAttributes.getRequest(); return request; } }
4.用到的工具類
獲取ip地址
/** * 獲取IP方法 * */ public class IpUtils { /** * 獲取客戶端IP * * @param request 請求對象 * @return IP地址 */ public static String getIpAddr(HttpServletRequest request) { if (request == null) { return "unknown"; } String ip = request.getHeader("x-forwarded-for"); if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("X-Forwarded-For"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("WL-Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("X-Real-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : getMultistageReverseProxyIp(ip); } /** * 檢查是否為內(nèi)部IP地址 * * @param ip IP地址 * @return 結果 */ public static boolean internalIp(String ip) { byte[] addr = textToNumericFormatV4(ip); return internalIp(addr) || "127.0.0.1".equals(ip); } /** * 檢查是否為內(nèi)部IP地址 * * @param addr byte地址 * @return 結果 */ private static boolean internalIp(byte[] addr) { if (addr == null || addr.length < 2) { return true; } final byte b0 = addr[0]; final byte b1 = addr[1]; // 10.x.x.x/8 final byte SECTION_1 = 0x0A; // 172.16.x.x/12 final byte SECTION_2 = (byte) 0xAC; final byte SECTION_3 = (byte) 0x10; final byte SECTION_4 = (byte) 0x1F; // 192.168.x.x/16 final byte SECTION_5 = (byte) 0xC0; final byte SECTION_6 = (byte) 0xA8; switch (b0) { case SECTION_1: return true; case SECTION_2: if (b1 >= SECTION_3 && b1 <= SECTION_4) { return true; } case SECTION_5: switch (b1) { case SECTION_6: return true; } default: return false; } } /** * 將IPv4地址轉換成字節(jié) * * @param text IPv4地址 * @return byte 字節(jié) */ public static byte[] textToNumericFormatV4(String text) { if (text.length() == 0) { return null; } byte[] bytes = new byte[4]; String[] elements = text.split("\\.", -1); try { long l; int i; switch (elements.length) { case 1: l = Long.parseLong(elements[0]); if ((l < 0L) || (l > 4294967295L)) { return null; } bytes[0] = (byte) (int) (l >> 24 & 0xFF); bytes[1] = (byte) (int) ((l & 0xFFFFFF) >> 16 & 0xFF); bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 2: l = Integer.parseInt(elements[0]); if ((l < 0L) || (l > 255L)) { return null; } bytes[0] = (byte) (int) (l & 0xFF); l = Integer.parseInt(elements[1]); if ((l < 0L) || (l > 16777215L)) { return null; } bytes[1] = (byte) (int) (l >> 16 & 0xFF); bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 3: for (i = 0; i < 2; ++i) { l = Integer.parseInt(elements[i]); if ((l < 0L) || (l > 255L)) { return null; } bytes[i] = (byte) (int) (l & 0xFF); } l = Integer.parseInt(elements[2]); if ((l < 0L) || (l > 65535L)) { return null; } bytes[2] = (byte) (int) (l >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 4: for (i = 0; i < 4; ++i) { l = Integer.parseInt(elements[i]); if ((l < 0L) || (l > 255L)) { return null; } bytes[i] = (byte) (int) (l & 0xFF); } break; default: return null; } } catch (NumberFormatException e) { return null; } return bytes; } /** * 獲取IP地址 * * @return 本地IP地址 */ public static String getHostIp() { try { return InetAddress.getLocalHost().getHostAddress(); } catch (UnknownHostException e) { } return "127.0.0.1"; } /** * 獲取主機名 * * @return 本地主機名 */ public static String getHostName() { try { return InetAddress.getLocalHost().getHostName(); } catch (UnknownHostException e) { } return "未知"; } /** * 從多級反向代理中獲得第一個非unknown IP地址 * * @param ip 獲得的IP地址 * @return 第一個非unknown IP地址 */ public static String getMultistageReverseProxyIp(String ip) { // 多級反向代理檢測 if (ip != null && ip.indexOf(",") > 0) { final String[] ips = ip.trim().split(","); for (String subIp : ips) { if (false == isUnknown(subIp)) { ip = subIp; break; } } } return ip; } /** * 檢測給定字符串是否為未知,多用于檢測HTTP請求相關 * * @param checkString 被檢測的字符串 * @return 是否未知 */ public static boolean isUnknown(String checkString) { return StringUtils.isBlank(checkString) || "unknown".equalsIgnoreCase(checkString); } public static void main(String[] args) { String hostIp = IpUtils.getHostIp(); System.out.println(hostIp); } }
根據(jù)ip地址獲取位置信息
import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONObject; import org.apache.commons.lang3.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.ConnectException; import java.net.SocketTimeoutException; import java.net.URL; import java.net.URLConnection; /** * 根據(jù)ip獲取地理位置信息 */ public class AddressUtils { private static final Logger log = LoggerFactory.getLogger(AddressUtils.class); // IP地址查詢,太平洋ip地址查詢 public static final String IP_URL = "http://whois.pconline.com.cn/ipJson.jsp"; // 未知地址 public static final String UNKNOWN = "XX XX"; /** * UTF-8 字符集 */ public static final String UTF8 = "UTF-8"; /** * GBK 字符集 */ public static final String GBK = "GBK"; public static String getRealAddressByIP(String ip) { // 內(nèi)網(wǎng)不查詢 if (IpUtils.internalIp(ip)) { return "內(nèi)網(wǎng)IP"; } try { String rspStr = sendGet(IP_URL, "ip=" + ip + "&json=true", GBK); if (StringUtils.isNotBlank(rspStr)) { log.error("獲取地理位置異常 {}", ip); return UNKNOWN; } JSONObject obj = JSON.parseObject(rspStr); String region = obj.getString("pro"); String city = obj.getString("city"); return String.format("%s %s", region, city); } catch (Exception e) { log.error("獲取地理位置異常 {}", ip); } return UNKNOWN; } /** * 向指定 URL 發(fā)送GET方法的請求 * * @param url 發(fā)送請求的 URL * @param param 請求參數(shù),請求參數(shù)應該是 name1=value1&name2=value2 的形式。 * @param contentType 編碼類型 * @return 所代表遠程資源的響應結果 */ public static String sendGet(String url, String param, String contentType) { StringBuilder result = new StringBuilder(); BufferedReader in = null; try { String urlNameString = StringUtils.isNotBlank(param) ? url + "?" + param : url; log.info("sendGet - {}", urlNameString); URL realUrl = new URL(urlNameString); URLConnection connection = realUrl.openConnection(); connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); connection.connect(); in = new BufferedReader(new InputStreamReader(connection.getInputStream(), contentType)); String line; while ((line = in.readLine()) != null) { result.append(line); } log.info("recv - {}", result); } catch (ConnectException e) { log.error("調(diào)用HttpUtils.sendGet ConnectException, url=" + url + ",param=" + param, e); } catch (SocketTimeoutException e) { log.error("調(diào)用HttpUtils.sendGet SocketTimeoutException, url=" + url + ",param=" + param, e); } catch (IOException e) { log.error("調(diào)用HttpUtils.sendGet IOException, url=" + url + ",param=" + param, e); } catch (Exception e) { log.error("調(diào)用HttpsUtil.sendGet Exception, url=" + url + ",param=" + param, e); } finally { try { if (in != null) { in.close(); } } catch (Exception ex) { log.error("調(diào)用in.close Exception, url=" + url + ",param=" + param, ex); } } return result.toString(); } }
5.測試類
在需要記錄日志的目標方法添加我們自定義的@Log注解,通過aop記錄日志
@Api(tags = "測試模塊") @RestController @RequiredArgsConstructor @RequestMapping(value = "/test") public class AuthController { private final AuthConfigService authConfigService; @Log(title = "測試模塊",description = "更新配置") @ApiOperation(value = "更新配置") @RequestMapping(value = "/update", method = RequestMethod.PUT) public BaseResult update(@Validated @RequestBody AuthConfigUpdateRequest request) { return BaseResult.judgeOperate(authConfigService.update(request)); } @Log(title = "測試模塊",description = "新增配置") @ApiOperation(value = "新增配置") @RequestMapping(value = "/create", method = RequestMethod.POST) public BaseResult create(@Validated @RequestBody AuthConfigRequest request) { return BaseResult.judgeOperate(authConfigService.create(request)); } @Log(title = "測試模塊",description = "刪除配置") @ApiOperation(value = "刪除配置") @DeleteMapping(value = "/delete/{ids}") @ApiImplicitParams({ @ApiImplicitParam(name = "ids", value = "配置id,多個id用逗號分隔", required = true) }) public BaseResult delete(@PathVariable("ids") List<Long> ids) { return BaseResult.judgeOperate(authConfigService.delete(ids)); } @Log(title = "測試模塊",description = "配置分頁") @ApiOperation(value = "配置分頁") @RequestMapping(value = "/list", method = RequestMethod.GET) public BaseResult<PageResponse<AuthConfigListResponse>> list(@RequestBody AuthConfigListRequest request) { return BaseResult.success(PageResponse.getInstance(authConfigService.list(request))); } @Log(title = "測試模塊",description = "根據(jù)appId獲取配置信息") @ApiOperation(value = "根據(jù)appId獲取配置信息") @RequestMapping(value = "/detail", method = RequestMethod.GET) public BaseResult<EduAuthConfig> detail(String appId) { return BaseResult.success(authConfigService.getAuthConfig(appId)); } }
6.測試結果
到此這篇關于Spring AOP結合注解實現(xiàn)接口層操作日志記錄的文章就介紹到這了,更多相關Spring AOP接口層內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關文章希望大家以后多多支持腳本之家!
相關文章
SpringBoot工程搭建打包、啟動jar包和war包的教程圖文詳解
這篇文章主要介紹了SpringBoot工程搭建打包、啟動jar包和war包的教程,本文通過圖文并茂的形式給大家介紹的非常詳細,對大家的學習或工作具有一定的參考借鑒價值,需要的朋友可以參考下2020-09-09java實現(xiàn)給第三方接口推送加密數(shù)據(jù)
這篇文章主要介紹了java實現(xiàn)給第三方接口推送加密數(shù)據(jù)方式,具有很好的參考價值,希望對大家有所幫助,如有錯誤或未考慮完全的地方,望不吝賜教2023-12-12Java面試為何阿里強制要求不在foreach里執(zhí)行刪除操作
那天,小二去阿里面試,面試官老王一上來就甩給了他一道面試題:為什么阿里的 Java 開發(fā)手冊里會強制不要在 foreach 里進行元素的刪除操作2021-11-11深入Parquet文件格式設計原理及實現(xiàn)細節(jié)
這篇文章主要介紹了深入Parquet文件格式設計原理及實現(xiàn)細節(jié),有需要的朋友可以借鑒參考下,希望能夠有所幫助,祝大家多多進步,早日升職加薪2023-08-08