详解基于SpringBoot使用AOP技术实现操作日志管理

@Aspect
public class Test {
 private static int step = 0;

 @Pointcut("@annotation(com.chenyanwu.erp.erpframework.annotation.Log)") // the pointcut expression
 private void operation() {}

 @Before("operation()")
 public void doBeforeTask() {
  System.out.println(++step + " 前置通知");
 }

 @After("operation()")
 public void doAfterTask() {
  System.out.println(++step + " 后置通知");
 }

 @AfterReturning(pointcut = "operation()", returning = "retVal")
 public void doAfterReturnningTask(Object retVal) {
  System.out.println(++step + " 返回通知，返回值为：" + retVal.toString());
 }

 @AfterThrowing(pointcut = "operation()", throwing = "ex")
 public void doAfterThrowingTask(Exception ex) {
  System.out.println(++step + " 异常通知，异常信息为：" + ex.getMessage());
 }

 /**
  * 环绕通知需要携带ProceedingJoinPoint类型的参数 
  * 环绕通知类似于动态代理的全过程ProceedingJoinPoint类型的参数可以决定是否执行目标方法 
  * 且环绕通知必须有返回值，返回值即目标方法的返回值
  */
 //@Around("operation()")
 public Object doAroundTask(ProceedingJoinPoint pjp) {
  String methodname = pjp.getSignature().getName();
  Object result = null;
  try {
   // 前置通知
   System.out.println("目标方法" + methodname + "开始，参数为" + Arrays.asList(pjp.getArgs()));
   // 执行目标方法
   result = pjp.proceed();
   // 返回通知
   System.out.println("目标方法" + methodname + "执行成功，返回" + result);
  } catch (Throwable e) {
   // 异常通知
   System.out.println("目标方法" + methodname + "抛出异常: " + e.getMessage());
  }
  // 后置通知
  System.out.println("目标方法" + methodname + "结束");
  return result;
 }
}

<!-- aop依赖 -->
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-aop</artifactId>
</dependency>

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

@Aspect
@Order(5)
@Component
public class LogAspect {

 private Logger logger = LoggerFactory.getLogger(LogAspect.class);

 @Autowired
 private ErpLogService logService;

 @Autowired
 ObjectMapper objectMapper;

 private ThreadLocal<Date> startTime = new ThreadLocal<Date>();

 @Pointcut("@annotation(com.chenyanwu.erp.erpframework.annotation.Log)")
 public void pointcut() {

 }

 /**
  * 前置通知，在Controller层操作前拦截
  *
  * @param joinPoint 切入点
  */
 @Before("pointcut()")
 public void doBefore(JoinPoint joinPoint) {
  // 获取当前调用时间
  startTime.set(new Date());
 }

 /**
  * 正常情况返回
  *
  * @param joinPoint 切入点
  * @param rvt  正常结果
  */
 @AfterReturning(pointcut = "pointcut()", returning = "rvt")
 public void doAfter(JoinPoint joinPoint, Object rvt) throws Exception {
  handleLog(joinPoint, null, rvt);
 }

 /**
  * 异常信息拦截
  *
  * @param joinPoint
  * @param e
  */
 @AfterThrowing(pointcut = "pointcut()", throwing = "e")
 public void doAfter(JoinPoint joinPoint, Exception e) throws Exception {
  handleLog(joinPoint, e, null);
 }

 @Async
 private void handleLog(final JoinPoint joinPoint, final Exception e, Object rvt) throws Exception{
  // 获得注解
  Method method = getMethod(joinPoint);
  Log log = getAnnotationLog(method);
  if (log == null) {
   return;
  }
  Date now = new Date();
  // 操作数据库日志表
  ErpLog erpLog = new ErpLog();
  erpLog.setErrorCode(0);
  erpLog.setIsDeleted(0);
  // 请求信息
  HttpServletRequest request = ToolUtil.getRequest();
  erpLog.setType(ToolUtil.isAjaxRequest(request) ? "Ajax请求" : "普通请求");
  erpLog.setTitle(log.value());
  erpLog.setHost(request.getRemoteHost());
  erpLog.setUri(request.getRequestURI().toString());
//  erpLog.setHeader(request.getHeader(HttpHeaders.USER_AGENT));
  erpLog.setHttpMethod(request.getMethod());
  erpLog.setClassMethod(joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
  // 请求的方法参数值
  Object[] args = joinPoint.getArgs();
  // 请求的方法参数名称
  LocalVariableTableParameterNameDiscoverer u
    = new LocalVariableTableParameterNameDiscoverer();
  String[] paramNames = u.getParameterNames(method);
  if (args != null && paramNames != null) {
   StringBuilder params = new StringBuilder();
   params = handleParams(params, args, Arrays.asList(paramNames));
   erpLog.setParams(params.toString());
  }
  String retString = JsonUtil.bean2Json(rvt);
  erpLog.setResponseValue(retString.length() > 5000 ? JsonUtil.bean2Json("请求参数数据过长不与显示") : retString);
  if (e != null) {
   erpLog.setErrorCode(1);
   erpLog.setErrorMessage(e.getMessage());
  }
  Date stime = startTime.get();
  erpLog.setStartTime(stime);
  erpLog.setEndTime(now);
  erpLog.setExecuteTime(now.getTime() - stime.getTime());
  erpLog.setUsername(MySysUser.loginName());
  HashMap<String, String> browserMap = ToolUtil.getOsAndBrowserInfo(request);
  erpLog.setOperatingSystem(browserMap.get("os"));
  erpLog.setBrower(browserMap.get("browser"));
  erpLog.setId(IdUtil.simpleUUID());
  logService.insertSelective(erpLog);
 }

 /**
  * 是否存在注解，如果存在就获取
  */
 private Log getAnnotationLog(Method method) {
  if (method != null) {
   return method.getAnnotation(Log.class);
  }
  return null;
 }

 private Method getMethod(JoinPoint joinPoint) {
  Signature signature = joinPoint.getSignature();
  MethodSignature methodSignature = (MethodSignature) signature;
  Method method = methodSignature.getMethod();
  if (method != null) {
   return method;
  }
  return null;
 }

 private StringBuilder handleParams(StringBuilder params, Object[] args, List paramNames) throws JsonProcessingException {
  for (int i = 0; i < args.length; i++) {
   if (args[i] instanceof Map) {
    Set set = ((Map) args[i]).keySet();
    List list = new ArrayList();
    List paramList = new ArrayList<>();
    for (Object key : set) {
     list.add(((Map) args[i]).get(key));
     paramList.add(key);
    }
    return handleParams(params, list.toArray(), paramList);
   } else {
    if (args[i] instanceof Serializable) {
     Class<?> aClass = args[i].getClass();
     try {
      aClass.getDeclaredMethod("toString", new Class[]{null});
      // 如果不抛出NoSuchMethodException 异常则存在 toString 方法 ，安全的writeValueAsString ，否则 走 Object的 toString方法
      params.append(" ").append(paramNames.get(i)).append(": ").append(objectMapper.writeValueAsString(args[i]));
     } catch (NoSuchMethodException e) {
      params.append(" ").append(paramNames.get(i)).append(": ").append(objectMapper.writeValueAsString(args[i].toString()));
     }
    } else if (args[i] instanceof MultipartFile) {
     MultipartFile file = (MultipartFile) args[i];
     params.append(" ").append(paramNames.get(i)).append(": ").append(file.getName());
    } else {
     params.append(" ").append(paramNames.get(i)).append(": ").append(args[i]);
    }
   }
  }
  return params;
 }
}

@Log("新增学生")
 @RequestMapping(value = "/create", method = RequestMethod.POST)
 @ResponseBody
 public ResultBean<String> create(@RequestBody @Validated ErpStudent item) {
  if(service.insertSelective(item) == 1) {
   // 插入
   insertErpSFamilyMember(item);
   return new ResultBean<String>("");
  }

  return new ResultBean<String>(ExceptionEnum.BUSINESS_ERROR, "新增学生异常！", "新增失败!", "");
 }