From 3c4fee1db116c11d4f04727cfe076d7c94daeaf2 Mon Sep 17 00:00:00 2001
From: yanzhaofeige <yanzhaofeige@qq.com>
Date: Mon, 30 Sep 2024 12:10:57 +0800
Subject: [PATCH] init

---
 cpzidc-framework/src/main/java/com/odcc/cpzidc/framework/config/RedisConfig.java |   69 ++++++++++++++++++++++++++++++++++
 1 files changed, 69 insertions(+), 0 deletions(-)

diff --git a/cpzidc-framework/src/main/java/com/odcc/cpzidc/framework/config/RedisConfig.java b/cpzidc-framework/src/main/java/com/odcc/cpzidc/framework/config/RedisConfig.java
new file mode 100644
index 0000000..fd775e3
--- /dev/null
+++ b/cpzidc-framework/src/main/java/com/odcc/cpzidc/framework/config/RedisConfig.java
@@ -0,0 +1,69 @@
+package com.odcc.cpzidc.framework.config;
+
+import org.springframework.cache.annotation.CachingConfigurerSupport;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.core.script.DefaultRedisScript;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+/**
+ * redis配置
+ * 
+ * @author ruoyi
+ */
+@Configuration
+@EnableCaching
+public class RedisConfig extends CachingConfigurerSupport
+{
+    @Bean
+    @SuppressWarnings(value = { "unchecked", "rawtypes" })
+    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory)
+    {
+        RedisTemplate<Object, Object> template = new RedisTemplate<>();
+        template.setConnectionFactory(connectionFactory);
+
+        FastJson2JsonRedisSerializer serializer = new FastJson2JsonRedisSerializer(Object.class);
+
+        // 使用StringRedisSerializer来序列化和反序列化redis的key值
+        template.setKeySerializer(new StringRedisSerializer());
+        template.setValueSerializer(serializer);
+
+        // Hash的key也采用StringRedisSerializer的序列化方式
+        template.setHashKeySerializer(new StringRedisSerializer());
+        template.setHashValueSerializer(serializer);
+
+        template.afterPropertiesSet();
+        return template;
+    }
+
+    @Bean
+    public DefaultRedisScript<Long> limitScript()
+    {
+        DefaultRedisScript<Long> redisScript = new DefaultRedisScript<>();
+        redisScript.setScriptText(limitScriptText());
+        redisScript.setResultType(Long.class);
+        return redisScript;
+    }
+
+    /**
+     * 限流脚本
+     */
+    private String limitScriptText()
+    {
+        return "local key = KEYS[1]\n" +
+                "local count = tonumber(ARGV[1])\n" +
+                "local time = tonumber(ARGV[2])\n" +
+                "local current = redis.call('get', key);\n" +
+                "if current and tonumber(current) > count then\n" +
+                "    return tonumber(current);\n" +
+                "end\n" +
+                "current = redis.call('incr', key)\n" +
+                "if tonumber(current) == 1 then\n" +
+                "    redis.call('expire', key, time)\n" +
+                "end\n" +
+                "return tonumber(current);";
+    }
+}

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