AOP和注解的配合使用（封装通用日志处理类）

自定义注解

@Inherited
@Documented
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface MyLog {String value() default "";
}

定义切面

@Aspect
@Component
@Slf4j
public class LogAop {// 定义识别自定义注解的切点@Pointcut("@annotation(com.jxy.MyLog)")public void logger(){}/**** @param point* @return*/@Around("logger()")public Object around(ProceedingJoinPoint point) {Object obj = null;String ip_port = "";String uri = "";String value="";HttpServletResponse response = null;ControllerLogMapper bip2NCLogMapper = null;bip2NCLogMapper = AppContext.getBean(ControllerLogMapper.class);Signature methodName = point.getSignature();String name = point.getSignature().getName();log.error(methodName + "....running");//Long start = System.currentTimeMillis();Object[] argArray = point.getArgs();if (argArray != null && argArray.length > 0) {for (Object object : argArray) {if (object instanceof HttpServletResponse) {response = (HttpServletResponse) object;}}}// 目标方法执行try {Object res = point.proceed(point.getArgs());obj = res ;} catch (Throwable throwable) {obj = "【" + name + "方法异常，异常信息：" + throwable + "】";log.error("【环绕异常通知】【" + name + "方法异常，异常信息：" + throwable + "】");throw new GlobalException(throwable.getMessage());} finally {try {if (response != null) {PrintWriter writerToBeRead = response.getWriter();CoyoteWriter cw = (CoyoteWriter) writerToBeRead.append("");Class<?> clazz = cw.getClass();Field declaredField = clazz.getDeclaredField("ob");declaredField.setAccessible(true);OutputBuffer ob = (OutputBuffer) declaredField.get(cw);Class<?> classOutputBuffer = ob.getClass();//获取IP和端口 startClass<?> responseClass = response.getClass();Field requestField = responseClass.getDeclaredField("request");requestField.setAccessible(true);HttpServletRequest request = (HttpServletRequest) requestField.get(response);String ip = request.getRemoteAddr();//获取请求地址uri = request.getRequestURI();Field coyoteResponseField = classOutputBuffer.getDeclaredField("coyoteResponse");coyoteResponseField.setAccessible(true);Response coyoteResponse = (Response) coyoteResponseField.get(ob);Class<?> coyoteResponseClass = coyoteResponse.getClass();Field reqField = coyoteResponseClass.getDeclaredField("req");reqField.setAccessible(true);Request request1 = (Request) reqField.get(coyoteResponse);int port = request1.getServerPort();ip_port = ip + ":" + port;//获取IP和端口 endField fieldOutputChunk = classOutputBuffer.getDeclaredField("cb");fieldOutputChunk.setAccessible(true);obj = fieldOutputChunk.get(ob) == null ? "" : fieldOutputChunk.get(ob).toString();}MethodSignature signature = (MethodSignature) point.getSignature();MyLog declaredAnnotation = signature.getMethod().getDeclaredAnnotation(MyLog.class);value = declaredAnnotation.value();log.error("==注解@MyLog的value=="+ value);//记录到日志表String loginUser = AppContext.getCurrentUser() == null ? "第三方调用" : AppContext.getCurrentUser().getId().toString();String YTenantId = com.yonyou.eforship.common.utils.yms.AppContextUtil.getCurrentOrDefaultTenantId() == null ? "" : com.yonyou.eforship.common.utils.yms.AppContextUtil.getCurrentOrDefaultTenantId().toString();bip2NCLogMapper.add(String.valueOf(IdManager.getInstance().nextId()), loginUser, ArrayUtils.toString(argArray, ","), obj == null?"":obj.toString(), methodName.toString(), YTenantId, ip_port,uri,value);} catch (Exception e) {log.error("ControllerLog接口日志创建异常：" + e.getMessage());}log.error("【环绕后置通知】【" + name + "方法结束】");}//Long end = System.currentTimeMillis();//log.info(methodName + "....stop" + "\t耗时：" + (end - start));return obj;}public String getResponseContent(HttpServletResponse response) throws IOException, NoSuchFieldException, IllegalAccessException {String responseContent = null;CoyoteOutputStream outputStream = (CoyoteOutputStream) response.getOutputStream();Class<CoyoteOutputStream> coyoteOutputStreamClass = CoyoteOutputStream.class;Field obField = coyoteOutputStreamClass.getDeclaredField("ob");if (obField.getType().toString().endsWith("OutputBuffer")) {obField.setAccessible(true);org.apache.catalina.connector.OutputBuffer outputBuffer = (org.apache.catalina.connector.OutputBuffer) obField.get(outputStream);Class<org.apache.catalina.connector.OutputBuffer> opb = org.apache.catalina.connector.OutputBuffer.class;Field outputChunkField = opb.getDeclaredField("outputChunk");outputChunkField.setAccessible(true);if (outputChunkField.getType().toString().endsWith("ByteChunk")) {ByteChunk bc = (ByteChunk) outputChunkField.get(outputBuffer);Integer length = bc.getLength();if (length == 0) return null;responseContent = new String(bc.getBytes(), "UTF-8");Integer responseLength = StringUtils.isBlank(responseContent) ? 0 : responseContent.length();if (responseLength < length) {responseContent = responseContent.substring(0, responseLength);} else {responseContent = responseContent.substring(0, length);}}}return responseContent;}/*** 如果程序出现了异常,则需要拦截,打印异常信息* @param joinPoint* @param throwable*/@AfterThrowing(pointcut = "logger()",throwing = "throwable")public void afterThrow(JoinPoint joinPoint, Throwable throwable) {Class<?> targetClass = joinPoint.getTarget().getClass();String methodName = joinPoint.getSignature().getName();Class<?> throwClass = throwable.getClass();String msg = throwable.getMessage();log.error("目标对象类型:" + targetClass);log.error("目标方法:" + methodName);log.error("异常类型:" + throwClass);log.error("异常信息:" + msg);}}

使用

该自定义注解作用于方法上，如果需要日志处理，直接使用注解即可。