Spring AOP 自定义注解获取http接口及WebService接口入参和出参

时间：2022-04-06 14:41:49

注解方法实现过程中可以采用如下获取方式：—以下为例

 HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();

1.定义两个方法注解，分别标记要处理的http接口及Webservice接口：

http接口注解

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@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.TYPE, ElementType.METHOD })
public @interface AnnotationForIntfMark {
    String value();
}

WebService接口注解

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@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.TYPE, ElementType.METHOD })
public @interface AnnotationForWsMark {
    String value();
}

2.定义Spring AOP切入点，两种接口注解切入点，注意 中间用||，网上也有说明使用or，试过之后发现or后面的切入点无效

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@Pointcut("@annotation(ms.platform.base.interfaces.AnnotationForIntfMark) || @annotation(ms.platform.base.interfaces.AnnotationForWsMark)")
    public void pointcut() {
    }

3.环绕式加入切入点

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@Around("pointcut()")
    public void handle(ProceedingJoinPoint joinPoint) throws Throwable {
        StringBuffer sb = new StringBuffer();
        String reqParam = preHandle(joinPoint);
        sb.append("Input Param:【").append(reqParam).append("】").append("\n");
        Object retVal = joinPoint.proceed();
        String respParam = postHandle(retVal);
        sb.append("Output Param:【").append(respParam).append("】").append("\n");
        MSLog.error(sb.toString());
    }

4.preHandle(joinPoint)获取接口入参，postHandle(retVal)获取接口出参

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private String preHandle(ProceedingJoinPoint joinPoint) {
        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes())
                .getRequest();
        Signature signature = joinPoint.getSignature();
        MethodSignature methodSignature = (MethodSignature) signature;
        Method targetMethod = methodSignature.getMethod();
        Annotation[] annotations = targetMethod.getAnnotations();
        boolean isIntf = false;
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < annotations.length; i++) {
            if (annotations[i].annotationType().equals(AnnotationForIntfMark.class)) {
                sb.append(request.getAttribute("jsonContent"));
                isIntf = true;
                break;
            }
        }
        if (!isIntf) {
            Object[] args = joinPoint.getArgs();
            for (int j = 0; j < args.length; j++) {
                sb.append(JsonUtil.bean2json(args[j]));
            }
        }
        return sb.toString();
    }
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private String postHandle(Object retVal) {
        return JsonUtil.bean2json(retVal);
    }
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5.切面类定义，注意需要添加@Component，否则将扫描不到切面类

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@Aspect
@Component
public class WebRequestAroundAdvice {
}

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