Spring Boot AOP Demo

什麼是AOP？

AOP面向切面，切面將那些與業務無關，卻被業務模塊共同調用的邏輯提取並封裝起來，減小了系統中的重複代碼，下降了模塊間的耦合度，同時提升了系統的可維護性。

實現策略JAVA SE動態代理

CGLib

相關注解

@Aspect（方面）

@Pointcut（切入點）

@Before（以前）

@After（以後）

pom.xml

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

AspectTest.class

/**
 * @author 張東明
 * @TODO: 2019/3/4
 * @remark AOP切面類 日誌記錄
 */
@Aspect
@Component
public class AspectTest {

    private final static Logger logger = LoggerFactory.getLogger(AspectTest.class);

    @Autowired
    private GeLogVisitServiceImpl geLogVisitService;

    @Pointcut("execution(public * com.nf147.platform.web..*.*(..))")
    public void controllerMethod() {

    }

    @Before("controllerMethod()")
    public void LogRequestInfo(JoinPoint joinPoint) throws JsonProcessingException {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        /**
         * 獲取Session
         * */
        GeEnterprise user = (GeEnterprise) request.getSession().getAttribute("user");

        int id = 0;
        if (user != null) {
            id = user.getId();
        }
        String remoteAddr = request.getRemoteAddr();
        String requestURI = request.getRequestURI();

        if (remoteAddr != null && requestURI != null) {
            GeLogVisit geLogVisit = null;
            if (id > 0) {
                geLogVisit = new GeLogVisit(id, remoteAddr, requestURI, new Date(), 1);
            } else {
                geLogVisit = new GeLogVisit(remoteAddr, requestURI, new Date(), 1);
            }
            System.out.println("日誌記錄信息：" + geLogVisit.toString());
            int insert = geLogVisitService.insert(geLogVisit);
            System.out.println(insert);
        }

        StringBuffer requestLog = new StringBuffer();
        requestLog.append("請求信息：")
                .append("URL = {" + requestURI + "},\t")
                .append("HTTP_METHOD = {" + request.getMethod() + "},\t")
                .append("IP = {" + remoteAddr + "},\t")
                .append("CLASS_METHOD = {" + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName() + "},\t");

        if (joinPoint.getArgs().length == 0) {
            requestLog.append("ARGS = {} ");
        } else {
            requestLog.append("ARGS = " + new ObjectMapper().setSerializationInclusion(JsonInclude.Include.NON_NULL)
                    .writeValueAsString(joinPoint.getArgs()[0]) + "");
        }
        System.out.println(requestLog.toString());
    }

    /**
     * @remark 調用以後迴歸返回結果
     * // TODO: 2019/3/4
     */
    @AfterReturning(returning = "resultVO", pointcut = "controllerMethod()")
    public void logResultVOInfo(JSONResponse resultVO) throws Exception {
        System.out.println("請求結果：" + resultVO.getCode() + "\t" + resultVO.getData());
    }

}