{"id":202018,"date":"2025-05-10T11:26:41","date_gmt":"2025-05-10T03:26:41","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202018\/"},"modified":"2025-05-10T11:26:41","modified_gmt":"2025-05-10T03:26:41","slug":"%e5%88%a9%e7%94%a8java%e5%92%8credis%e5%ae%9e%e7%8e%b0%e5%ae%9e%e6%97%b6%e6%8e%a8%e8%8d%90%e7%b3%bb%e7%bb%9f%ef%bc%9a%e5%a6%82%e4%bd%95%e4%b8%aa%e6%80%a7%e5%8c%96%e6%8e%a8%e8%8d%90%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202018\/","title":{"rendered":"\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\uff1a\u5982\u4f55\u4e2a\u6027\u5316\u63a8\u8350\u6570\u636e\u548c\u5e7f\u544a"},"content":{"rendered":"

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

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\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\uff1a\u5982\u4f55\u4e2a\u6027\u5316\u63a8\u8350\u6570\u636e\u548c\u5e7f\u544a<\/p>\n

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\u4e00\u3001\u6982\u8ff0
\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\u662f\u6307\u80fd\u591f\u6839\u636e\u7528\u6237\u7684\u5b9e\u65f6\u884c\u4e3a\u548c\u504f\u597d\uff0c\u5feb\u901f\u5730\u751f\u6210\u4e2a\u6027\u5316\u7684\u63a8\u8350\u5185\u5bb9\u548c\u5e7f\u544a\u3002Java\u662f\u4e00\u79cd\u529f\u80fd\u5f3a\u5927\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u800cRedis\u662f\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684NoSQL\u6570\u636e\u5e93\uff0c\u5b83\u4eec\u76f8\u4e92\u914d\u5408\u53ef\u4ee5\u5b9e\u73b0\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\u3002\u5728\u63a8\u8350\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u6536\u96c6\u548c\u5b58\u50a8\u7528\u6237\u7684\u884c\u4e3a\u6570\u636e\uff0c\u7136\u540e\u6839\u636e\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u7528\u6237\u753b\u50cf\u5206\u6790\u548c\u63a8\u8350\u7b97\u6cd5\u7684\u5b9e\u65f6\u8ba1\u7b97\uff0c\u6700\u540e\u5229\u7528Redis\u8fdb\u884c\u6570\u636e\u7684\u5b58\u50a8\u548c\u8bfb\u53d6\u3002<\/p>\n

\u4e8c\u3001\u7528\u6237\u753b\u50cf\u5206\u6790
\u7528\u6237\u753b\u50cf\u662f\u6307\u5bf9\u7528\u6237\u7684\u4e2a\u4eba\u4fe1\u606f\u3001\u5174\u8da3\u504f\u597d\u3001\u884c\u4e3a\u4e60\u60ef\u7b49\u8fdb\u884c\u5206\u6790\u548c\u5f52\u7eb3\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u4e3a\u7528\u6237\u63a8\u8350\u5185\u5bb9\u3002\u5728Java\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u7b97\u6cd5\u548c\u5de5\u5177\u5bf9\u7528\u6237\u7684\u884c\u4e3a\u6570\u636e\u8fdb\u884c\u5206\u6790\uff0c\u4f8b\u5982\u4f7f\u7528\u673a\u5668\u5b66\u4e60\u5e93weka\u8fdb\u884c\u6570\u636e\u6316\u6398\u548c\u5206\u6790\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528weka\u8fdb\u884c\u7528\u6237\u753b\u50cf\u5206\u6790\uff1a<\/p>\n

import weka.core.Instances;\nimport weka.core.converters.ArffLoader;\nimport weka.core.converters.CSVLoader;\nimport weka.core.converters.ConverterUtils.DataSource;\nimport weka.clusterers.SimpleKMeans;\n\npublic class UserProfiler {\n    public static void main(String[] args) {\n        try {\n            \/\/ \u52a0\u8f7d\u7528\u6237\u884c\u4e3a\u6570\u636e\n            CSVLoader loader = new CSVLoader();\n            loader.setSource(new File(\"user_behavior.csv\"));\n            Instances data = loader.getDataSet();\n\n            \/\/ \u6784\u5efaKMeans\u805a\u7c7b\u6a21\u578b\n            SimpleKMeans kMeans = new SimpleKMeans();\n            kMeans.setNumClusters(3);\n            kMeans.buildClusterer(data);\n\n            \/\/ \u8f93\u51fa\u7528\u6237\u805a\u7c7b\u7ed3\u679c\n            int[] assignments = kMeans.getAssignments();\n            for (int i = 0; i < assignments.length; i++) {\n                System.out.println(\"User \" + i + \" belongs to cluster \" + assignments[i]);\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}<\/pre>\n
\u4e09\u3001\u63a8\u8350\u7b97\u6cd5\u5b9e\u65f6\u8ba1\u7b97
\u63a8\u8350\u7b97\u6cd5\u5b9e\u65f6\u8ba1\u7b97\u662f\u5b9e\u73b0\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\u7684\u6838\u5fc3\u90e8\u5206\uff0c\u5b83\u6839\u636e\u7528\u6237\u7684\u884c\u4e3a\u6570\u636e\u548c\u753b\u50cf\u4fe1\u606f\uff0c\u8ba1\u7b97\u51fa\u4e2a\u6027\u5316\u7684\u63a8\u8350\u5185\u5bb9\u548c\u5e7f\u544a\u3002\u5728Java\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u548c\u63a8\u8350\u7b97\u6cd5\u5e93\uff0c\u4f8b\u5982\u4f7f\u7528Apache Mahout\u8fdb\u884c\u63a8\u8350\u7b97\u6cd5\u7684\u5b9e\u65f6\u8ba1\u7b97\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Mahout\u8fdb\u884c\u63a8\u8350\u7b97\u6cd5\u7684\u5b9e\u65f6\u8ba1\u7b97\uff1a<\/p>\n
import org.apache.mahout.cf.taste.impl.model.file.FileDataModel;\nimport org.apache.mahout.cf.taste.impl.neighborhood.NearestNUserNeighborhood;\nimport org.apache.mahout.cf.taste.impl.recommender.GenericUserBasedRecommender;\nimport org.apache.mahout.cf.taste.impl.similarity.PearsonCorrelationSimilarity;\nimport org.apache.mahout.cf.taste.model.DataModel;\nimport org.apache.mahout.cf.taste.neighborhood.UserNeighborhood;\nimport org.apache.mahout.cf.taste.recommender.RecommendedItem;\nimport org.apache.mahout.cf.taste.similarity.UserSimilarity;\n\nimport java.io.File;\nimport java.util.List;\n\npublic class RecommendationEngine {\n    public static void main(String[] args) {\n        try {\n            \/\/ \u52a0\u8f7d\u7528\u6237\u884c\u4e3a\u6570\u636e\n            DataModel model = new FileDataModel(new File(\"user_behavior.csv\"));\n\n            \/\/ \u6784\u5efa\u76f8\u4f3c\u5ea6\u8ba1\u7b97\u5668\n            UserSimilarity similarity = new PearsonCorrelationSimilarity(model);\n\n            \/\/ \u6784\u5efa\u7528\u6237\u90bb\u57df\n            UserNeighborhood neighborhood = new NearestNUserNeighborhood(3, similarity, model);\n\n            \/\/ \u6784\u5efa\u63a8\u8350\u5668\n            GenericUserBasedRecommender recommender = new GenericUserBasedRecommender(model, neighborhood, similarity);\n\n            \/\/ \u83b7\u53d6\u7528\u6237\u7684\u63a8\u8350\u9879\n            List<RecommendedItem> recommendations = recommender.recommend(1, 3);\n            for (RecommendedItem recommendation : recommendations) {\n                System.out.println(\"User 1 should try \" + recommendation.getItemID());\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}<\/pre>\n
\u56db\u3001\u5229\u7528Redis\u8fdb\u884c\u6570\u636e\u5b58\u50a8\u548c\u8bfb\u53d6
Redis\u662f\u4e00\u79cd\u9ad8\u6027\u80fd\u7684NoSQL\u6570\u636e\u5e93\uff0c\u5b83\u5177\u6709\u5feb\u901f\u7684\u8bfb\u5199\u901f\u5ea6\u548c\u4e30\u5bcc\u7684\u6570\u636e\u7c7b\u578b\u652f\u6301\u3002\u5728\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Redis\u6765\u5b58\u50a8\u7528\u6237\u7684\u753b\u50cf\u4fe1\u606f\u548c\u63a8\u8350\u7ed3\u679c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Java\u8fde\u63a5Redis\u5e76\u8fdb\u884c\u6570\u636e\u5b58\u50a8\u548c\u8bfb\u53d6\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
import redis.clients.jedis.Jedis;\n\npublic class RedisUtil {\n    public static void main(String[] args) {\n        Jedis jedis = null;\n        try {\n            \/\/ \u8fde\u63a5Redis\n            jedis = new Jedis(\"localhost\", 6379);\n\n            \/\/ \u5b58\u50a8\u7528\u6237\u753b\u50cf\u4fe1\u606f\n            jedis.hset(\"user:1\", \"name\", \"Alice\");\n            jedis.hset(\"user:1\", \"age\", \"25\");\n            jedis.hset(\"user:1\", \"gender\", \"female\");\n\n            \/\/ \u8bfb\u53d6\u7528\u6237\u753b\u50cf\u4fe1\u606f\n            String name = jedis.hget(\"user:1\", \"name\");\n            String age = jedis.hget(\"user:1\", \"age\");\n            String gender = jedis.hget(\"user:1\", \"gender\");\n            System.out.println(\"User 1: Name=\" + name + \", Age=\" + age + \", Gender=\" + gender);\n        } catch (Exception e) {\n            e.printStackTrace();\n        } finally {\n            if (jedis != null) {\n                jedis.close();\n            }\n        }\n    }\n}<\/pre>\n
\u7ed3\u8bba\uff1a
\u5229\u7528Java\u548cRedis\u642d\u5efa\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\u53ef\u4ee5\u5b9e\u73b0\u4e2a\u6027\u5316\u7684\u6570\u636e\u548c\u5e7f\u544a\u63a8\u8350\u3002\u901a\u8fc7\u7528\u6237\u753b\u50cf\u5206\u6790\u548c\u63a8\u8350\u7b97\u6cd5\u7684\u5b9e\u65f6\u8ba1\u7b97\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u7528\u6237\u7684\u5174\u8da3\u504f\u597d\u548c\u884c\u4e3a\u4e60\u60ef\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u52a0\u4e2a\u6027\u5316\u7684\u63a8\u8350\u5185\u5bb9\u3002\u540c\u65f6\uff0c\u5229\u7528Redis\u8fdb\u884c\u6570\u636e\u7684\u5b58\u50a8\u548c\u8bfb\u53d6\uff0c\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6027\u80fd\u7684\u6570\u636e\u8bbf\u95ee\u548c\u63a8\u8350\u7ed3\u679c\u7684\u5b9e\u65f6\u66f4\u65b0\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u5927\u5bb6\u7406\u89e3\u5b9e\u65f6\u63a8\u8350\u7cfb\u7edf\u7684\u5b9e\u73b0\u539f\u7406\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
\n
\n <\/dt>\n
\n   \u5982\u4f55\u4f7f\u7528Redis\u548cJavaScript\u5b9e\u73b0\u5206\u5e03\u5f0f\u7f13\u5b58\u529f\u80fd\n <\/dd>\n<\/dl>\n
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\n <\/dt>\n
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