| 提交 | 用户 | 时间 | ||
| fd2207 | 1 | package com.jcdm.framework.config; |
| 懒 | 2 | |
| 3 | import org.springframework.cache.annotation.CachingConfigurerSupport; | |
| 4 | import org.springframework.cache.annotation.EnableCaching; | |
| 5 | import org.springframework.context.annotation.Bean; | |
| 6 | import org.springframework.context.annotation.Configuration; | |
| 7 | import org.springframework.data.redis.connection.RedisConnectionFactory; | |
| 8 | import org.springframework.data.redis.core.RedisTemplate; | |
| 9 | import org.springframework.data.redis.core.script.DefaultRedisScript; | |
| 10 | import org.springframework.data.redis.serializer.StringRedisSerializer; | |
| 11 | ||
| 12 | /** | |
| 13 | * redis配置 | |
| 14 | * | |
| 15 | * @author jc | |
| 16 | */ | |
| 17 | //@Configuration | |
| 18 | //@EnableCaching | |
| 19 | public class RedisConfig extends CachingConfigurerSupport | |
| 20 | { | |
| 21 | // @Bean | |
| 22 | @SuppressWarnings(value = { "unchecked", "rawtypes" }) | |
| 23 | public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) | |
| 24 | { | |
| 25 | RedisTemplate<Object, Object> template = new RedisTemplate<>(); | |
| 26 | template.setConnectionFactory(connectionFactory); | |
| 27 | ||
| 28 | FastJson2JsonRedisSerializer serializer = new FastJson2JsonRedisSerializer(Object.class); | |
| 29 | ||
| 30 | // 使用StringRedisSerializer来序列化和反序列化redis的key值 | |
| 31 | template.setKeySerializer(new StringRedisSerializer()); | |
| 32 | template.setValueSerializer(serializer); | |
| 33 | ||
| 34 | // Hash的key也采用StringRedisSerializer的序列化方式 | |
| 35 | template.setHashKeySerializer(new StringRedisSerializer()); | |
| 36 | template.setHashValueSerializer(serializer); | |
| 37 | ||
| 38 | template.afterPropertiesSet(); | |
| 39 | return template; | |
| 40 | } | |
| 41 | ||
| 42 | // @Bean | |
| 43 | public DefaultRedisScript<Long> limitScript() | |
| 44 | { | |
| 45 | DefaultRedisScript<Long> redisScript = new DefaultRedisScript<>(); | |
| 46 | redisScript.setScriptText(limitScriptText()); | |
| 47 | redisScript.setResultType(Long.class); | |
| 48 | return redisScript; | |
| 49 | } | |
| 50 | ||
| 51 | /** | |
| 52 | * 限流脚本 | |
| 53 | */ | |
| 54 | private String limitScriptText() | |
| 55 | { | |
| 56 | return "local key = KEYS[1]\n" + | |
| 57 | "local count = tonumber(ARGV[1])\n" + | |
| 58 | "local time = tonumber(ARGV[2])\n" + | |
| 59 | "local current = redis.call('get', key);\n" + | |
| 60 | "if current and tonumber(current) > count then\n" + | |
| 61 | " return tonumber(current);\n" + | |
| 62 | "end\n" + | |
| 63 | "current = redis.call('incr', key)\n" + | |
| 64 | "if tonumber(current) == 1 then\n" + | |
| 65 | " redis.call('expire', key, time)\n" + | |
| 66 | "end\n" + | |
| 67 | "return tonumber(current);"; | |
| 68 | } | |
| 69 | } | |
