From f79460295254ae83a28f76630254ee398ea6c473 Mon Sep 17 00:00:00 2001
From: LSH
Date: 星期三, 09 八月 2023 10:20:09 +0800
Subject: [PATCH] #限制电视机基础数据访问频率  每秒2次

---
 src/main/java/com/zy/common/config/AdminInterceptor.java     |   18 ++++++++++++++++--
 src/main/java/com/zy/common/model/annotations/RateLimit.java |   15 +++++++++++++++
 src/main/java/com/zy/asrs/controller/MonitorController.java  |    3 +++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/zy/asrs/controller/MonitorController.java b/src/main/java/com/zy/asrs/controller/MonitorController.java
index 35e0eae..d29534f 100644
--- a/src/main/java/com/zy/asrs/controller/MonitorController.java
+++ b/src/main/java/com/zy/asrs/controller/MonitorController.java
@@ -7,6 +7,7 @@
 import com.zy.asrs.domain.dto.WorkChartAxis;
 import com.zy.asrs.domain.vo.LocChartPie;
 import com.zy.asrs.mapper.ReportQueryMapper;
+import com.zy.common.model.annotations.RateLimit;
 import com.zy.common.service.CommonService;
 import com.zy.core.CrnThread;
 import com.zy.core.cache.SlaveConnection;
@@ -134,6 +135,7 @@
     /**
      * 鍏ュ簱鎶ヨ〃 -- 鎶樼嚎鍥�
      */
+    @RateLimit(2)
     @GetMapping("/pakin/rep")
     public R monitorPakinRep(){
         // 鍏ュ簱
@@ -198,6 +200,7 @@
     /**
      * 搴撲綅浣跨敤鎯呭喌缁熻
      */
+    @RateLimit(2)
     @GetMapping("/loc/rep")
     public R monitorLocRep(){
         List<Map<String, Object>> pie = new ArrayList<>();
diff --git a/src/main/java/com/zy/common/config/AdminInterceptor.java b/src/main/java/com/zy/common/config/AdminInterceptor.java
index 04ca10f..5ae30f1 100644
--- a/src/main/java/com/zy/common/config/AdminInterceptor.java
+++ b/src/main/java/com/zy/common/config/AdminInterceptor.java
@@ -4,6 +4,8 @@
 import com.core.annotations.ManagerAuth;
 import com.core.common.BaseRes;
 import com.core.common.Cools;
+import com.google.common.util.concurrent.RateLimiter;
+import com.zy.common.model.annotations.RateLimit;
 import com.zy.common.utils.Http;
 import com.zy.system.entity.Permission;
 import com.zy.system.entity.RolePermission;
@@ -12,6 +14,7 @@
 import com.zy.system.service.*;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
 import org.springframework.lang.Nullable;
 import org.springframework.stereotype.Component;
 import org.springframework.web.method.HandlerMethod;
@@ -21,6 +24,7 @@
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.lang.reflect.Method;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Created by vincent on 2019-06-13
@@ -41,11 +45,23 @@
     @Autowired
     private RolePermissionService rolePermissionService;
 
+    private final RateLimiter rateLimiter = RateLimiter.create(10);// 榛樿姣忕鏈�澶氬鐞� 10 涓姹�
+
     @Override
     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
         cors(response);
         if (handler instanceof org.springframework.web.servlet.resource.ResourceHttpRequestHandler) {
             return true;
+        }
+        HandlerMethod handlerMethod = (HandlerMethod) handler;
+        Method method = handlerMethod.getMethod();
+        if (method.isAnnotationPresent(RateLimit.class)){
+            RateLimit annotation = method.getAnnotation(RateLimit.class);
+            rateLimiter.setRate(annotation.value());
+            if (!rateLimiter.tryAcquire(annotation.value(), TimeUnit.SECONDS)) {
+                response.setStatus(HttpStatus.TOO_MANY_REQUESTS.value());
+                return false;
+            }
         }
         // super璐﹀彿
         String token = request.getHeader("token");
@@ -66,8 +82,6 @@
         }
         // 璺ㄥ煙璁剧疆
         // response.setHeader("Access-Control-Allow-Origin", "*");
-        HandlerMethod handlerMethod = (HandlerMethod) handler;
-        Method method = handlerMethod.getMethod();
         if (method.isAnnotationPresent(ManagerAuth.class)){
             ManagerAuth annotation = method.getAnnotation(ManagerAuth.class);
             if (annotation.value().equals(ManagerAuth.Auth.CHECK)){
diff --git a/src/main/java/com/zy/common/model/annotations/RateLimit.java b/src/main/java/com/zy/common/model/annotations/RateLimit.java
new file mode 100644
index 0000000..c04b5ff
--- /dev/null
+++ b/src/main/java/com/zy/common/model/annotations/RateLimit.java
@@ -0,0 +1,15 @@
+package com.zy.common.model.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+//鎺ュ彛棰戠巼闄愬埗
+@Target({ElementType.TYPE, ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface RateLimit {
+
+    int value();//鎺ュ彛棰戠巼
+
+}

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