From 0375fd319c9f3b08d255c814cb0f8521d8ec641b Mon Sep 17 00:00:00 2001
From: 疯狂的狮子Li <15040126243@163.com>
Date: 星期三, 18 八月 2021 11:11:24 +0800
Subject: [PATCH] !78 同步dev分支 Merge pull request !78 from 疯狂的狮子Li/dev
---
ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/RateLimiterAspect.java | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 116 insertions(+), 0 deletions(-)
diff --git a/ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/RateLimiterAspect.java b/ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/RateLimiterAspect.java
new file mode 100644
index 0000000..1e21e37
--- /dev/null
+++ b/ruoyi-framework/src/main/java/com/ruoyi/framework/aspectj/RateLimiterAspect.java
@@ -0,0 +1,116 @@
+package com.ruoyi.framework.aspectj;
+
+import com.ruoyi.common.annotation.RateLimiter;
+import com.ruoyi.common.enums.LimitType;
+import com.ruoyi.common.exception.ServiceException;
+import com.ruoyi.common.utils.ServletUtils;
+import com.ruoyi.common.utils.StringUtils;
+import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.Signature;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Before;
+import org.aspectj.lang.annotation.Pointcut;
+import org.aspectj.lang.reflect.MethodSignature;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.core.script.RedisScript;
+import org.springframework.stereotype.Component;
+
+import java.lang.reflect.Method;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * 闄愭祦澶勭悊
+ *
+ * @author ruoyi
+ */
+@Aspect
+@Component
+public class RateLimiterAspect
+{
+ private static final Logger log = LoggerFactory.getLogger(RateLimiterAspect.class);
+
+ private RedisTemplate<Object, Object> redisTemplate;
+
+ private RedisScript<Long> limitScript;
+
+ @Autowired
+ public void setRedisTemplate1(RedisTemplate<Object, Object> redisTemplate)
+ {
+ this.redisTemplate = redisTemplate;
+ }
+
+ @Autowired
+ public void setLimitScript(RedisScript<Long> limitScript)
+ {
+ this.limitScript = limitScript;
+ }
+
+ // 閰嶇疆缁囧叆鐐�
+ @Pointcut("@annotation(com.ruoyi.common.annotation.RateLimiter)")
+ public void rateLimiterPointCut()
+ {
+ }
+
+ @Before("rateLimiterPointCut()")
+ public void doBefore(JoinPoint point) throws Throwable
+ {
+ RateLimiter rateLimiter = getAnnotationRateLimiter(point);
+ String key = rateLimiter.key();
+ int time = rateLimiter.time();
+ int count = rateLimiter.count();
+
+ String combineKey = getCombineKey(rateLimiter, point);
+ List<Object> keys = Collections.singletonList(combineKey);
+ try
+ {
+ Long number = redisTemplate.execute(limitScript, keys, count, time);
+ if (StringUtils.isNull(number) || number.intValue() > count)
+ {
+ throw new ServiceException("璁块棶杩囦簬棰戠箒锛岃绋嶅悗鍐嶈瘯");
+ }
+ log.info("闄愬埗璇锋眰'{}',褰撳墠璇锋眰'{}',缂撳瓨key'{}'", count, number.intValue(), key);
+ }
+ catch (ServiceException e)
+ {
+ throw e;
+ }
+ catch (Exception e)
+ {
+ throw new RuntimeException("鏈嶅姟鍣ㄩ檺娴佸紓甯革紝璇风◢鍚庡啀璇�");
+ }
+ }
+
+ /**
+ * 鏄惁瀛樺湪娉ㄨВ锛屽鏋滃瓨鍦ㄥ氨鑾峰彇
+ */
+ private RateLimiter getAnnotationRateLimiter(JoinPoint joinPoint)
+ {
+ Signature signature = joinPoint.getSignature();
+ MethodSignature methodSignature = (MethodSignature) signature;
+ Method method = methodSignature.getMethod();
+
+ if (method != null)
+ {
+ return method.getAnnotation(RateLimiter.class);
+ }
+ return null;
+ }
+
+ public String getCombineKey(RateLimiter rateLimiter, JoinPoint point)
+ {
+ StringBuffer stringBuffer = new StringBuffer(rateLimiter.key());
+ if (rateLimiter.limitType() == LimitType.IP)
+ {
+ stringBuffer.append(ServletUtils.getClientIP());
+ }
+ MethodSignature signature = (MethodSignature) point.getSignature();
+ Method method = signature.getMethod();
+ Class<?> targetClass = method.getDeclaringClass();
+ stringBuffer.append("-").append(targetClass.getName()).append("- ").append(method.getName());
+ return stringBuffer.toString();
+ }
+}
--
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