{"id":201877,"date":"2025-05-10T12:30:34","date_gmt":"2025-05-10T04:30:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201877\/"},"modified":"2025-05-10T12:30:34","modified_gmt":"2025-05-10T04:30:34","slug":"redis%e5%9c%a8java%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201877\/","title":{"rendered":"Redis\u5728Java\u4e2d\u7684\u5e94\u7528\u8be6\u89e3"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u5728Java\u4e2d\u7684\u5e94\u7528\u8be6\u89e3<\/h1>\n

\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300aRedis\u5728Java\u4e2d\u7684\u5e94\u7528\u8be6\u89e3\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n

Redis\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u7cfb\u7edf\uff0c\u5b83\u652f\u6301\u591a\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u8868\u3001\u5217\u8868\u3001\u96c6\u5408\u4ee5\u53ca\u6709\u5e8f\u96c6\u5408\u7b49\u3002Redis\u5728Java\u5e94\u7528\u4e2d\u7684\u5e94\u7528\u5341\u5206\u5e7f\u6cdb\uff0c\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdRedis\u5728Java\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n

\u4e00\u3001Redis\u7684\u57fa\u672c\u6982\u5ff5<\/p>\n

    \n
  1. Redis\u7684\u4e94\u79cd\u57fa\u672c\u6570\u636e\u7ed3\u6784<\/li>\n<\/ol>\n

    Redis\u652f\u6301\u4e94\u79cd\u57fa\u672c\u7684\u6570\u636e\u7ed3\u6784\uff1a\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u8868\u3001\u5217\u8868\u3001\u96c6\u5408\u3001\u6709\u5e8f\u96c6\u5408\u3002\u5b57\u7b26\u4e32\u662fRedis\u4e2d\u6700\u57fa\u672c\u7684\u6570\u636e\u7ed3\u6784\uff0cRedis\u5c06\u5b57\u7b26\u4e32\u4f5c\u4e3a\u4e8c\u8fdb\u5236\u6570\u636e\u5199\u5165\u5185\u5b58\u4e2d\u3002<\/p>\n

      \n
    1. Redis\u7684\u591a\u529f\u80fd\u5b58\u50a8\u7cfb\u7edf<\/li>\n<\/ol>\n

      Redis\u4e0d\u4ec5\u662f\u4e00\u4e2a\u7b80\u5355\u7684key-value\u5b58\u50a8\u7cfb\u7edf\uff0c\u8fd8\u652f\u6301\u591a\u4e2a\u9ad8\u7ea7\u529f\u80fd\uff0c\u4f8b\u5982\u53d1\u5e03\/\u8ba2\u9605\u3001\u4e8b\u52a1\u5904\u7406\u7b49\u529f\u80fd\u3002\u6709\u4e9bRedis\u547d\u4ee4\u8fd8\u53ef\u4ee5\u4e0e\u4e0d\u540c\u7684\u6570\u636e\u7ed3\u6784\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u521b\u5efa\u590d\u6742\u7684\u6570\u636e\u6a21\u578b\u3002<\/p>\n

        \n
      1. Redis\u7684\u6301\u4e45\u5316<\/li>\n<\/ol>\n

        Redis\u63d0\u4f9b\u4e24\u79cd\u6301\u4e45\u5316\u65b9\u5f0f\uff1a\u5feb\u7167\u548c\u65e5\u5fd7\u6587\u4ef6\u3002\u5feb\u7167\u662f\u6307\u5c06Redis\u5185\u5b58\u4e2d\u7684\u6570\u636e\u5168\u90e8\u5199\u5230\u78c1\u76d8\u4e0a\uff0c\u65e5\u5fd7\u6587\u4ef6\u662f\u6307\u5c06Redis\u6267\u884c\u7684\u6bcf\u4e2a\u547d\u4ee4\u90fd\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u4e2d\u3002\u5728\u91cd\u542f\u65f6\uff0cRedis\u4f1a\u4ece\u78c1\u76d8\u6216\u65e5\u5fd7\u6587\u4ef6\u4e2d\u6062\u590d\u6570\u636e\u3002<\/p>\n

        \u4e8c\u3001Redis\u5728Java\u4e2d\u7684\u5e94\u7528<\/p>\n

          \n
        1. \u4f7f\u7528Redis\u4f5c\u4e3a\u7f13\u5b58<\/li>\n<\/ol>\n

          Redis\u6700\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u662f\u4f5c\u4e3a\u7f13\u5b58\uff0c\u8fd9\u662f\u56e0\u4e3aRedis\u5177\u6709\u5feb\u901f\u8bfb\u53d6\u6570\u636e\u7684\u80fd\u529b\u3002\u5c06\u7ecf\u5e38\u8bbf\u95ee\u7684\u6570\u636e\u7f13\u5b58\u5230Redis\u4e2d\uff0c\u53ef\u4ee5\u51cf\u8f7b\u6570\u636e\u5e93\u7684\u538b\u529b\u3002<\/p>\n

          \u5728Java\u5e94\u7528\u4e2d\u4f7f\u7528Redis\u4f5c\u4e3a\u7f13\u5b58\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n

          1\uff09\u914d\u7f6eRedis\u5ba2\u6237\u7aef
          2\uff09\u521b\u5efaRedis\u5ba2\u6237\u7aef\u8fde\u63a5
          3\uff09\u5c06Redis\u4f5c\u4e3a\u7f13\u5b58\u4f7f\u7528<\/p>\n

          \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

          \/\/ \u914d\u7f6eRedis\u5ba2\u6237\u7aef\nRedisClient redisClient = RedisClient.create(\"redis:\/\/localhost:6379\");\nStatefulRedisConnection<String, String> connection = redisClient.connect();\nRedisCommands<String, String> redisCommands = connection.sync();\n\n\/\/ \u5c06Redis\u4f5c\u4e3a\u7f13\u5b58\u4f7f\u7528\n\/\/ \u4eceRedis\u4e2d\u83b7\u53d6\u6570\u636e\nString value = redisCommands.get(\"key\");\n\/\/ \u5982\u679cRedis\u4e2d\u6ca1\u6709\u7f13\u5b58\uff0c\u5219\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u6570\u636e\nif (value == null) {\n   value = getDataFromDatabase();\n   \/\/ \u5c06\u6570\u636e\u653e\u5165Redis\u4e2d\u7f13\u5b58\n   redisCommands.set(\"key\", value);\n}<\/pre>\n
            \n
          1. \u4f7f\u7528Redis\u5b9e\u73b0\u540c\u6b65\u9501<\/li>\n<\/ol>\n
            \u5728\u591a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\u65f6\uff0c\u4f7f\u7528\u540c\u6b65\u9501\u53ef\u4ee5\u907f\u514d\u4ea7\u751f\u7684\u4e0d\u4e00\u81f4\u95ee\u9898\u3002Redis\u53ef\u4ee5\u4f5c\u4e3a\u5206\u5e03\u5f0f\u9501\u6765\u5b9e\u73b0\u540c\u6b65\u9501\u7684\u529f\u80fd\u3002<\/p>\n
            \u5728Java\u5e94\u7528\u4e2d\u4f7f\u7528Redis\u5b9e\u73b0\u540c\u6b65\u9501\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n
            1\uff09\u4f7f\u7528Redis\u7684SETNX\u547d\u4ee4\u8fdb\u884c\u9501\u5b9a
            2\uff09\u5728\u5904\u7406\u5b8c\u540e\u4f7f\u7528Redis\u7684DELETE\u547d\u4ee4\u91ca\u653e\u9501<\/p>\n
            \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
            public class RedisLock {\n\n    private static final String LOCK_KEY = \"lock_key\";\n    private static final int LOCK_VALUE = 1;\n    private static final int DEFAULT_EXPIRE_TIME = 60000; \/\/ \u9ed8\u8ba4\u8fc7\u671f\u65f6\u95f4\u4e3a1\u5206\u949f\n\n    private RedisCommands<String, String> redisCommands;\n\n    public RedisLock(StatefulRedisConnection<String, String> connection) {\n        this.redisCommands = connection.sync();\n    }\n\n    \/\/ \u9501\u5b9a\n    public boolean lock() {\n        Long result = redisCommands.setnx(LOCK_KEY, String.valueOf(LOCK_VALUE));\n        if (result > 0) { \/\/ \u6210\u529f\u9501\u5b9a\n            \/\/ \u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\n            redisCommands.pexpire(LOCK_KEY, DEFAULT_EXPIRE_TIME);\n            return true;\n        }\n        return false;\n    }\n\n    \/\/ \u91ca\u653e\u9501\n    public void unlock() {\n        redisCommands.del(LOCK_KEY);\n    }\n}<\/pre>\n
              \n
            1. \u4f7f\u7528Redis\u5b9e\u73b0\u4f1a\u8bdd\u7ba1\u7406<\/li>\n<\/ol>\n
              \u5728Web\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u4f1a\u8bdd\u7ba1\u7406\u662f\u4e00\u9879\u5173\u952e\u4efb\u52a1\u3002\u4f7f\u7528Redis\u4f5c\u4e3a\u4f1a\u8bdd\u5b58\u50a8\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u5176\u5b89\u5168\u6027\u548c\u6027\u80fd\u3002<\/p>\n
              \u5728Java\u5e94\u7528\u4e2d\u4f7f\u7528Redis\u5b9e\u73b0\u4f1a\u8bdd\u7ba1\u7406\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n
              1\uff09\u914d\u7f6eRedis\u5ba2\u6237\u7aef
              2\uff09\u5728Servlet\u8fc7\u6ee4\u5668\u4e2d\u5c06Redis\u7528\u4f5c\u4f1a\u8bdd\u5b58\u50a8<\/p>\n
              \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
              public class RedisSessionFilter implements Filter {\n\n    private RedisCommands<String, String> redisCommands;\n\n    @Override\n    public void init(FilterConfig filterConfig) throws ServletException {\n        RedisClient redisClient = RedisClient.create(\"redis:\/\/localhost:6379\");\n        StatefulRedisConnection<String, String> connection = redisClient.connect();\n        redisCommands = connection.sync();\n    }\n\n    @Override\n    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {\n        HttpServletRequest request = (HttpServletRequest) servletRequest;\n        String sessionId = request.getSession().getId();\n\n        \/\/ \u901a\u8fc7sessionId\u4eceRedis\u4e2d\u83b7\u53d6\u4f1a\u8bdd\u6570\u636e\n        String sessionData = redisCommands.get(sessionId);\n\n        \/\/ \u5982\u679cRedis\u4e2d\u6ca1\u6709\u4f1a\u8bdd\u6570\u636e\uff0c\u5219\u521b\u5efa\u4e00\u4e2a\u7a7a\u4f1a\u8bdd\n        HttpSession session = request.getSession();\n        if (sessionData == null) {\n            redisCommands.set(sessionId, \"\");\n        } else {\n            session.setAttribute(\"sessionData\", sessionData);\n        }\n\n        \/\/ \u5c06\u8bf7\u6c42\u4f20\u9012\u7ed9\u4e0b\u4e00\u4e2a\u8fc7\u6ee4\u5668\u6216Servlet\n        filterChain.doFilter(request, servletResponse);\n    }\n\n    @Override\n    public void destroy() {\n        redisCommands.getStatefulConnection().close();\n    }\n}<\/pre>\n
              \u4e09\u3001\u603b\u7ed3<\/p>\n
              Redis\u662f\u4e00\u6b3e\u5e94\u7528\u5e7f\u6cdb\u7684\u5185\u5b58\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u7cfb\u7edf\u3002\u5728Java\u5e94\u7528\u4e2d\uff0cRedis\u5e38\u7528\u4e8e\u4f5c\u4e3a\u7f13\u5b58\u3001\u540c\u6b65\u9501\u4ee5\u53ca\u4f1a\u8bdd\u7ba1\u7406\u7684\u5b9e\u73b0\u3002\u672c\u6587\u4ec5\u4ecb\u7ecd\u4e86Redis\u5728Java\u5e94\u7528\u4e2d\u7684\u90e8\u5206\u5e94\u7528\u573a\u666f\uff0c\u8bfb\u8005\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u4e00\u6b65\u5b66\u4e60Redis\u7684\u7528\u6cd5\u3002<\/p>\n
              \n
              \n <\/dt>\n
              \n   Golang\u4e2d\u9ad8\u6548\u4f4d\u7f6e\u63a8\u8350\u7b97\u6cd5\u4e0e\u7f13\u5b58\u6280\u672f\u7684\u7ed3\u5408\u5e94\u7528\u539f\u7406\u3002\n <\/dd>\n<\/dl>\n
              \n
              \n <\/dt>\n
              \n   \u56fd\u4ea7 GPU \u9996\u6b21\u652f\u6301 DX11\uff1a\u6469\u5c14\u7ebf\u7a0b\u5c06\u6301\u7eed\u53d1\u529b\u6e38\u620f\u3001\u529e\u516c\u4e0e AI\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
              Redis\u5728Java\u4e2d\u7684\u5e94\u7528\u8be6\u89e3...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201877","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201877"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201877\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}