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

Posted 2020-11-06 火凤凰

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 {   }