{"id":698,"date":"2025-02-17T00:16:34","date_gmt":"2025-02-16T16:16:34","guid":{"rendered":"http:\/\/www.cmd137blog.top\/?p=698"},"modified":"2025-03-20T11:33:03","modified_gmt":"2025-03-20T03:33:03","slug":"redis","status":"publish","type":"post","link":"http:\/\/www.cmd137blog.top\/?p=698","title":{"rendered":"Redis"},"content":{"rendered":"\n<p>\u57fa\u4e8e<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">\u5185\u5b58<\/mark><\/strong>\u7684 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">key-value \u952e\u503c\u5bf9<\/mark><\/strong> \u6570\u636e\u5e93<\/p>\n\n\n\n<p>\u5e94\u7528\u7a0b\u5e8f\u548c\u6570\u636e\u5e93\u4e4b\u95f4\u7684 Redis \u76f8\u5f53\u4e8e CPU \u548c\u5185\u5b58\u4e4b\u95f4\u7684 Cache\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u57fa\u4e8e\u5185\u5b58\uff0c\u8bfb\u5199\u6027\u80fd\u9ad8<\/li>\n\n\n\n<li>\u9002\u5408\u5b58\u50a8\u70ed\u70b9\u6570\u636e<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>\u4f7f\u7528<strong><a href=\"https:\/\/gitee.com\/qishibo\/AnotherRedisDesktopManager\">AnotherRedisDesktopManager<\/a><\/strong>\u56fe\u5f62\u5316\u7ba1\u7406\u754c\u9762<a href=\"https:\/\/gitee.com\/explore\"><\/a><\/p>\n\n\n\n<p>123465<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1a<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\uff0c\u5219\u5728\u542f\u52a8\u65f6\u5fc5\u987b\u6307\u5b9a\u6240\u4f7f\u7528\u7684\u914d\u7f6e\u6587\u4ef6\u3002\u5982\u679c\u4e0d\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\uff0cRedis \u4f1a\u4f7f\u7528\u9ed8\u8ba4\u53c2\u6570\u8fd0\u884c\uff1b<\/mark><\/strong><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">1. 5\u79cd\u5e38\u7528\u6570\u636e\u7c7b\u578b<\/h1>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">key-value \u952e\u503c\u5bf9<\/mark><\/strong>\uff1akey \u662f\u5b57\u7b26\u4e32\u7c7b\u578b\uff0cvalue\u67095\u5e38\u7528\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b57\u7b26\u4e32(string)\uff1a\u666e\u901a\u5b57\u7b26\u4e32\uff0cRedis\u4e2d\u6700\u7b80\u5355\u7684\u6570\u636e\u7c7b\u578b\uff08\u7ec6\u5206\u4e3astring\uff0cint\uff0cfloat\uff09<\/li>\n\n\n\n<li>\u54c8\u5e0c(hash)\uff1a\u4e5f\u53eb\u6563\u5217\uff0c\u7c7b\u4f3c\u4e8eJava\u4e2d\u7684HashMap\u7ed3\u6784<\/li>\n\n\n\n<li>\u5217\u8868(list)\uff1a\u6309\u7167\u63d2\u5165\u987a\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u6709\u91cd\u590d\u5143\u7d20\uff0c\u7c7b\u4f3c\u4e8eJava\u4e2d\u7684LinkedList<\/li>\n\n\n\n<li>\u96c6\u5408(set)\uff1a\u65e0\u5e8f\u96c6\u5408\uff0c\u6ca1\u6709\u91cd\u590d\u5143\u7d20\uff0c\u7c7b\u4f3c\u4e8eJava\u4e2d\u7684HashSet<\/li>\n\n\n\n<li>\u6709\u5e8f\u96c6\u5408(sorted set\/zset)\uff1a\u96c6\u5408\u4e2d\u6bcf\u4e2a\u5143\u7d20\u5173\u8054\u4e00\u4e2a\u5206\u6570(score)\uff0c\u6839\u636e\u5206\u6570\u5347\u5e8f\u6392\u5e8f\uff0c\u6ca1\u6709\u91cd\u590d\u5143\u7d20<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">2. <strong>Redis\u5e38\u7528\u547d\u4ee4<\/strong><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">2.1 \u5b57\u7b26\u4e32\u7c7b\u578b\u5e38\u7528\u547d\u4ee4<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SET<\/strong>&nbsp;key value \u8bbe\u7f6e\u6307\u5b9akey\u7684\u503c<\/li>\n\n\n\n<li><strong>GET<\/strong>&nbsp;key \u83b7\u53d6\u6307\u5b9akey\u7684\u503c<\/li>\n\n\n\n<li><strong>SETEX<\/strong>&nbsp;key seconds value \u8bbe\u7f6e\u6307\u5b9akey\u7684\u503c\uff0c\u5e76\u5c06 key \u7684\u8fc7\u671f\u65f6\u95f4\u8bbe\u4e3a seconds \u79d2<\/li>\n\n\n\n<li><strong>SETNX<\/strong>&nbsp;key value \u53ea\u6709\u5728 key \u4e0d\u5b58\u5728\u65f6\u8bbe\u7f6e key \u7684\u503c<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"32-%E5%93%88%E5%B8%8C%E6%93%8D%E4%BD%9C%E5%91%BD%E4%BB%A4\">2.2 \u54c8\u5e0c\u64cd\u4f5c\u547d\u4ee4<\/h2>\n\n\n\n<p>Redis hash \u662f\u4e00\u4e2astring\u7c7b\u578b\u7684 field \u548c value \u7684\u6620\u5c04\u8868\uff0chash\u7279\u522b\u9002\u5408\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\uff0c\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>HSET<\/strong>&nbsp;key field value \u5c06\u54c8\u5e0c\u8868 key \u4e2d\u7684\u5b57\u6bb5 field \u7684\u503c\u8bbe\u4e3a value<\/li>\n\n\n\n<li><strong>HGET<\/strong>&nbsp;key field \u83b7\u53d6\u5b58\u50a8\u5728\u54c8\u5e0c\u8868\u4e2d\u6307\u5b9a\u5b57\u6bb5\u7684\u503c<\/li>\n\n\n\n<li><strong>HDEL<\/strong>&nbsp;key field \u5220\u9664\u5b58\u50a8\u5728\u54c8\u5e0c\u8868\u4e2d\u7684\u6307\u5b9a\u5b57\u6bb5<\/li>\n\n\n\n<li><strong>HKEYS<\/strong>&nbsp;key \u83b7\u53d6\u54c8\u5e0c\u8868\u4e2d\u6240\u6709\u5b57\u6bb5<\/li>\n\n\n\n<li><strong>HVALS<\/strong>&nbsp;key \u83b7\u53d6\u54c8\u5e0c\u8868\u4e2d\u6240\u6709\u503c<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"33-%E5%88%97%E8%A1%A8%E6%93%8D%E4%BD%9C%E5%91%BD%E4%BB%A4\">2.3 \u5217\u8868\u64cd\u4f5c\u547d\u4ee4<\/h2>\n\n\n\n<p>Redis \u5217\u8868\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u6309\u7167\u63d2\u5165\u987a\u5e8f\u6392\u5e8f\uff0c\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>LPUSH<\/strong>&nbsp;key value1 [value2] \u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u503c\u63d2\u5165\u5230\u5217\u8868\u5934\u90e8<\/li>\n\n\n\n<li><strong>LRANGE<\/strong>&nbsp;key start stop \u83b7\u53d6\u5217\u8868\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20<\/li>\n\n\n\n<li><strong>RPOP<\/strong>&nbsp;key \u79fb\u9664\u5e76\u83b7\u53d6\u5217\u8868\u6700\u540e\u4e00\u4e2a\u5143\u7d20<\/li>\n\n\n\n<li><strong>LLEN<\/strong>&nbsp;key \u83b7\u53d6\u5217\u8868\u957f\u5ea6<\/li>\n\n\n\n<li><strong>BRPOP<\/strong>&nbsp;key1 [key2 ] timeout \u79fb\u51fa\u5e76\u83b7\u53d6\u5217\u8868\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c \u5982\u679c\u5217\u8868\u6ca1\u6709\u5143\u7d20\u4f1a\u963b\u585e\u5217\u8868\u76f4\u5230\u7b49\u5f85\u8d85 \u65f6\u6216\u53d1\u73b0\u53ef\u5f39\u51fa\u5143\u7d20\u4e3a\u6b62<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"34-%E9%9B%86%E5%90%88%E6%93%8D%E4%BD%9C%E5%91%BD%E4%BB%A4\">2.4 \u96c6\u5408\u64cd\u4f5c\u547d\u4ee4<\/h2>\n\n\n\n<p>Redis set \u662fstring\u7c7b\u578b\u7684\u65e0\u5e8f\u96c6\u5408\u3002\u96c6\u5408\u6210\u5458\u662f\u552f\u4e00\u7684\uff0c\u8fd9\u5c31\u610f\u5473\u7740\u96c6\u5408\u4e2d\u4e0d\u80fd\u51fa\u73b0\u91cd\u590d\u7684\u6570\u636e\uff0c\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SADD<\/strong>&nbsp;key member1 [member2] \u5411\u96c6\u5408\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u6210\u5458<\/li>\n\n\n\n<li><strong>SMEMBERS<\/strong>&nbsp;key \u8fd4\u56de\u96c6\u5408\u4e2d\u7684\u6240\u6709\u6210\u5458<\/li>\n\n\n\n<li><strong>SCARD<\/strong>&nbsp;key \u83b7\u53d6\u96c6\u5408\u7684\u6210\u5458\u6570<\/li>\n\n\n\n<li><strong>SINTER<\/strong>&nbsp;key1 [key2] \u8fd4\u56de\u7ed9\u5b9a\u6240\u6709\u96c6\u5408\u7684\u4ea4\u96c6<\/li>\n\n\n\n<li><strong>SUNION<\/strong>&nbsp;key1 [key2] \u8fd4\u56de\u6240\u6709\u7ed9\u5b9a\u96c6\u5408\u7684\u5e76\u96c6<\/li>\n\n\n\n<li><strong>SREM<\/strong>&nbsp;key member1 [member2] \u79fb\u9664\u96c6\u5408\u4e2d\u4e00\u4e2a\u6216\u591a\u4e2a\u6210\u5458<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"35-%E6%9C%89%E5%BA%8F%E9%9B%86%E5%90%88%E6%93%8D%E4%BD%9C%E5%91%BD%E4%BB%A4\">2.5 \u6709\u5e8f\u96c6\u5408\u64cd\u4f5c\u547d\u4ee4<\/h2>\n\n\n\n<p>Redis\u6709\u5e8f\u96c6\u5408\u662fstring\u7c7b\u578b\u5143\u7d20\u7684\u96c6\u5408\uff0c\u4e14\u4e0d\u5141\u8bb8\u6709\u91cd\u590d\u6210\u5458\u3002\u6bcf\u4e2a\u5143\u7d20\u90fd\u4f1a\u5173\u8054\u4e00\u4e2adouble\u7c7b\u578b\u7684\u5206\u6570\u3002\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n\n\n\n<p>\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ZADD<\/strong>&nbsp;key score1 member1 [score2 member2] \u5411\u6709\u5e8f\u96c6\u5408\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u6210\u5458<\/li>\n\n\n\n<li><strong>ZRANGE<\/strong>&nbsp;key start stop [WITHSCORES] \u901a\u8fc7\u7d22\u5f15\u533a\u95f4\u8fd4\u56de\u6709\u5e8f\u96c6\u5408\u4e2d\u6307\u5b9a\u533a\u95f4\u5185\u7684\u6210\u5458<\/li>\n\n\n\n<li><strong>ZINCRBY<\/strong>&nbsp;key increment member \u6709\u5e8f\u96c6\u5408\u4e2d\u5bf9\u6307\u5b9a\u6210\u5458\u7684\u5206\u6570\u52a0\u4e0a\u589e\u91cf increment<\/li>\n\n\n\n<li><strong>ZREM<\/strong>&nbsp;key member [member &#8230;] \u79fb\u9664\u6709\u5e8f\u96c6\u5408\u4e2d\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u6210\u5458<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"36-%E9%80%9A%E7%94%A8%E5%91%BD%E4%BB%A4\">2.6 \u901a\u7528\u547d\u4ee4<\/h2>\n\n\n\n<p>Redis\u7684\u901a\u7528\u547d\u4ee4\u662f\u4e0d\u5206\u6570\u636e\u7c7b\u578b\u7684\uff0c\u90fd\u53ef\u4ee5\u4f7f\u7528\u7684\u547d\u4ee4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>KEYS pattern \u67e5\u627e\u6240\u6709\u7b26\u5408\u7ed9\u5b9a\u6a21\u5f0f( pattern)\u7684 key<\/li>\n\n\n\n<li>EXISTS key \u68c0\u67e5\u7ed9\u5b9a key \u662f\u5426\u5b58\u5728<\/li>\n\n\n\n<li>TYPE key \u8fd4\u56de key \u6240\u50a8\u5b58\u7684\u503c\u7684\u7c7b\u578b<\/li>\n\n\n\n<li>DEL key \u8be5\u547d\u4ee4\u7528\u4e8e\u5728 key \u5b58\u5728\u65f6\u5220\u9664 key<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">3 \u5728java\u4e2d\u64cd\u4f5cRedis<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">3.1 Redis\u7684Java\u5ba2\u6237\u7aef\uff1a<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jedis<\/li>\n\n\n\n<li>lettuce<\/li>\n\n\n\n<li>Spring Data Redis<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3.2 Spring Data Redis<\/h2>\n\n\n\n<p><strong>\u4f7f\u7528\u6b65\u9aa4\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5bfc\u5165Spring Data Redis \u7684maven\u5750\u6807\uff08\u4e00\u822c\u5e26\u4e0ajedis\uff09<\/li>\n\n\n\n<li>\u914d\u7f6eRedis\u6570\u636e\u6e90<\/li>\n\n\n\n<li>\u7f16\u5199\u914d\u7f6e\u7c7b\uff0c\u521b\u5efaRedisTemplate\u5bf9\u8c61<\/li>\n\n\n\n<li>\u901a\u8fc7RedisTemplate\u5bf9\u8c61\u64cd\u4f5cRedis\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7redisTemplate\u5bf9\u8c61\u5b9e\u4f8b\u83b7\u53d6\u6240\u9700\u6570\u636e\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u518d\u8fdb\u884c\u6240\u9700\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>\u914d\u7f6e\u7c7b\uff1a<\/strong>\uff08\u5e8f\u5217\u5316\u5668\u53ef\u4f18\u5316\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Configuration\n@Slf4j\npublic class RedisConfiguration {\n    @Bean\n    public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory){\n        log.info(\"\u5f00\u59cb\u521b\u5efaRedis\u6a21\u7248\u5bf9\u8c61\");\n        RedisTemplate redisTemplate = new RedisTemplate();\n        \/\/\u8bbe\u7f6eredis\u7684\u8fde\u63a5\u5de5\u5382\u5bf9\u8c61\n        redisTemplate.setConnectionFactory(redisConnectionFactory);\n\n        \/\/\u8bbe\u7f6eredis key\u7684\u5e8f\u5217\u5316\u5668\n        redisTemplate.setKeySerializer(new StringRedisSerializer());\n\n        return redisTemplate;\n    }\n}<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u8fd9\u6837\u5199\uff1f<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8bbe\u7f6e\u8fde\u63a5\u5de5\u5382<\/strong>\uff1a<code>RedisTemplate<\/code>\u9700\u8981\u4e00\u4e2a<code>RedisConnectionFactory<\/code>\u6765\u5efa\u7acb\u4e0e Redis \u670d\u52a1\u5668\u7684\u8fde\u63a5\uff0c\u56e0\u6b64\u9700\u8981\u5c06\u5176\u8bbe\u7f6e\u5230<code>RedisTemplate<\/code>\u4e2d\u3002<\/li>\n\n\n\n<li><strong>\u8bbe\u7f6e\u952e\u7684\u5e8f\u5217\u5316\u5668<\/strong>\uff1aRedis \u662f\u4e00\u4e2a\u952e\u503c\u5bf9\u5b58\u50a8\u7cfb\u7edf\uff0c\u952e\u548c\u503c   \u5728\u4f20\u8f93\u548c\u5b58\u50a8\u65f6\u9700\u8981\u8fdb\u884c\u5e8f\u5217\u5316\u3002<code>StringRedisSerializer<\/code>\u662f Spring Data Redis \u63d0\u4f9b\u7684\u4e00\u4e2a\u5e8f\u5217\u5316\u5668\uff0c\u7528\u4e8e\u5c06\u952e\u5e8f\u5217\u5316\u4e3a\u5b57\u7b26\u4e32\uff0c\u8fd9\u6837\u53ef\u4ee5\u65b9\u4fbf\u5730\u5728 Redis \u4e2d\u5b58\u50a8\u548c\u67e5\u8be2\u3002<strong>\u9ed8\u8ba4\u7684\u5e8f\u5217\u5316\u5bfc\u81f4\u53ef\u8bfb\u6027\u5dee\u3001\u5185\u5b58\u5360\u7528\u5927<\/strong><\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>API<\/th><th>\u8fd4\u56de\u503c\u7c7b\u578b<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>redisTemplate.opsForValue()<\/td><td>ValueOperations<\/td><td>\u64cd\u4f5c String \u7c7b\u578b\u6570\u636e<\/td><\/tr><tr><td>redisTemplate.opsForHash()<\/td><td>HashOperations<\/td><td>\u64cd\u4f5c Hash \u7c7b\u578b\u6570\u636e<\/td><\/tr><tr><td>redisTemplate.opsForList()<\/td><td>ListOperations<\/td><td>\u64cd\u4f5c List \u7c7b\u578b\u6570\u636e<\/td><\/tr><tr><td>redisTemplate.opsForSet()<\/td><td>SetOperations<\/td><td>\u64cd\u4f5c Set \u7c7b\u578b\u6570\u636e<\/td><\/tr><tr><td>redisTemplate.opsForZSet()<\/td><td>ZSetOperations<\/td><td>\u64cd\u4f5c SortedSet \u7c7b\u578b\u6570\u636e<\/td><\/tr><tr><td>redisTemplate<\/td><td>&#8211;<\/td><td>\u901a\u7528\u7684\u547d\u4ee4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5bf9\u8c61\u5b58\u50a8\u7684\u5e8f\u5217\u5316\u95ee\u9898\uff1a<\/h4>\n\n\n\n<p>1.\u81ea\u52a8\u5e8f\u5217\u5316\uff1a<br>\u5c06\u5b58\u50a8\u5bf9\u8c61\u7684\u5e8f\u5217\u5316\u5668\u8bbe\u7f6e\u4e3ajson\u5bf9\u8c61\u5b58\u50a8\uff0c\u4f46\u662f\u5b58\u5230redis\u91cc\u4e3a\u4e86\u81ea\u52a8\u8f6c\u6362\u4f1a\u5c06\u7c7b\u7684\u5168\u8def\u5f84\u540c\u65f6\u5b58\u5165\uff0c\u9020\u6210\u8d44\u6e90\u5927\u91cf\u6d6a\u8d39\uff0c\u4e0d\u63a8\u8350<br><\/p>\n\n\n\n<p>2.\u624b\u52a8\u5e8f\u5217\u5316\uff1a<br>\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u4e00\u822c\u624b\u52a8\u5e8f\u5217\u5316\u5b58\u50a8\u7684\u5bf9\u8c61\uff0c\u90fd\u5df2string\u7684\u7c7b\u578bjson\u7684\u683c\u5f0f\u5b58\u5165\uff0c\u5982\u4e0b<\/p>\n\n\n\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<p>@Service<br>public class UserService {<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Autowired\nprivate RedisTemplate&lt;String, String> redisTemplate;\n\n\/\/springboot\u4f9d\u8d56\u4f20\u9012 jackson \u91cc\u7684\u5e8f\u5217\u5316\u5de5\u5177\u7c7b\n@Autowired\nprivate ObjectMapper objectMapper;\n\npublic void saveUser(String key, User user) {\n    \n    \/\/ \u624b\u52a8\u5c06\u5bf9\u8c61\u5e8f\u5217\u5316\u4e3a JSON \u5b57\u7b26\u4e32\n    String json = objectMapper.writeValueAsString(user);\n    redisTemplate.opsForValue().set(key, json);\n}\n\npublic User getUser(String key) {\n    String json = redisTemplate.opsForValue().get(key);\n    if (json != null) { \n        \/\/ \u624b\u52a8\u5c06 JSON \u5b57\u7b26\u4e32\u53cd\u5e8f\u5217\u5316\u4e3a\u5bf9\u8c61\n        return objectMapper.readValue(json, User.class);\n    }\n    return null;\n}<\/code><\/pre>\n\n\n\n<p>}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8e\u5185\u5b58\u7684 key-value \u952e\u503c\u5bf9 \u6570\u636e\u5e93 \u5e94\u7528\u7a0b\u5e8f\u548c\u6570\u636e\u5e93\u4e4b\u95f4\u7684 Redis \u76f8\u5f53\u4e8e CPU \u548c\u5185\u5b58\u4e4b\u95f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[25],"class_list":["post-698","post","type-post","status-publish","format-standard","hentry","category-javaweblist","tag-java"],"_links":{"self":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=698"}],"version-history":[{"count":4,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/698\/revisions"}],"predecessor-version":[{"id":805,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/698\/revisions\/805"}],"wp:attachment":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=698"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}