基于SpringBoot使用AOP技术实现操作日志管理[通俗易懂]

@Aspect
public class Test {
    private static int step = 0;
<pre class="brush:php;toolbar:false;"><code>@Pointcut("@annotation(com.chenyanwu.erp.erpframework.annotation.Log)")
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());
}

@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;
}

<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>();</p><pre class="brush:php;toolbar:false;"><code>@Pointcut("@annotation(com.chenyanwu.erp.erpframework.annotation.Log)")
public void pointcut() {}

@Before("pointcut()")
public void doBefore(JoinPoint joinPoint) {
    startTime.set(new Date());
}

@AfterReturning(pointcut = "pointcut()", returning = "rvt")
public void doAfter(JoinPoint joinPoint, Object rvt) throws Exception {
    handleLog(joinPoint, null, rvt);
}

@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 {
    Method method = getMethod(joinPoint);
    Log log = getAnnotationLog(method);
    if (log == null) {
        return;
    }
    Date now = new Date();
    ErpLog erpLog = new ErpLog();
    erpLog.setErrorCode(0);
    erpLog.setIsDeleted(0);
    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.setHttpMethod(request.getMethod());
    erpLog.setClassMethod(joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
    Object[] args = joinPoint.getArgs();
    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);
}

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