採用spring AOP 和註解解決日誌

首先創建一個自定義註解

@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface RecordLog {
    
}

 然後採用spring Aop

@Component("logAround")
public class LogAroundInterceptor implements MethodInterceptor {
	@Autowired
	private SysLogService sysLogService;
	private final Logger logger = Logger.getLogger(LogAroundInterceptor.class);

	public Object invoke(MethodInvocation invocation) throws Throwable {
		// TODO Auto-generated method stub
		Object returnObject = invocation.proceed();
		Method method = invocation.getMethod();
		if (method.isAnnotationPresent(RecordLog.class)) {
			Object[] arguments = invocation.getArguments();
			Object saveObject = null;
			SysLog sysLog = new SysLog();
			if (null != arguments) {
				saveObject = arguments[0];
				sysLog = getSysLog(getOperaType(method.getName()), saveObject);
				sysLogService.saveSysLog(sysLog);
			}
		}
		return returnObject;
	}

	public int getOperaType(String methodName) {
		int type = 0;
		if (methodName.startsWith("save") || methodName.startsWith("add")
				|| methodName.startsWith("insert")
				|| methodName.startsWith("update")) {
			type = 1;
		} else if (methodName.startsWith("delete")
				|| methodName.startsWith("del")) {
			type = 2;
		}
		return type;
	}

	public SysLog getSysLog(int type, Object object) {
		SysLog sysLog = new SysLog();
		sysLog.setCreateTime(new Date());
		StringBuffer sysContent = new StringBuffer();
		if (type != 1 && type != 2) {
			logger.warn("此方法不能被記錄日誌");
			return null;
		}
		if (object instanceof User) {
			User user = (User) object;
			sysContent.append("用戶:");
			if (type == 1) {
				sysContent.append(user.getUsername()).append("被保存.");
			} else if (type == 2) {
				sysContent.append(user.getDeleteUser()).append(
						"刪除了用戶:" + user.getUniqueUserName());
			}
		} else if (object instanceof Tribe) {
			Tribe tribe = (Tribe) object;
			if (type == 1) {
				sysContent.append("用戶:").append(
						tribe.getUser().getUniqueUserName()).append("保存了部落:")
						.append(tribe.getName());
			} else if (type == 2) {
				sysContent.append("用戶:").append(tribe.getDeleteUser()).append(
						"刪除了部落:").append(tribe.getUniqueTribeName());
			}
		} else if (object instanceof Assessment) {
			Assessment assessment = (Assessment) object;
			int assType = assessment.getType();
			User user = assessment.getUserByUserId();
			sysContent.append("用戶:").append(user.getUniqueUserName()).append(
					"舉報了");
			if (assType == 1) {
				sysContent.append("資源").append(
						assessment.getResource().getTitle());
			} else if (assType == 2) {
				sysContent.append("部落").append(
						assessment.getTribeByAccTribeId().getUniqueTribeName());
			} else if (assType == 3) {
				sysContent.append("人").append(
						assessment.getUserByUserId().getUniqueUserName());
			}
		} else if (object instanceof Role) {
			Role role = (Role) object;
			sysContent.append("用戶:").append(role.getOperaUser());
			if (type == 1) {
				sysContent.append("保存了").append(role.getRoleName());
			} else if (type == 2) {
				sysContent.append("刪除了").append(role.getRoleName());
			}
		} else if (object instanceof Resource) {
			Resource res = (Resource) object;
			boolean isPass = res.getAppStatus() == 1;
			sysContent.append("一級審覈人員:").append(res.getAppUser().getUniqueUserName());
			sysContent.append("審覈").append(res.getUniqueResName());
			if (!isPass) {
				sysContent.append("未通過");
			} else if (isPass) {
				sysContent.append("通過");
			}
		}
		logger.info(sysContent.toString());
		sysLog.setContent(sysContent.toString());
		return sysLog;
	}
}

 在需要插入註解的方法上面寫上@RecordLog就可以啦