{"id":191986,"date":"2024-11-12T17:29:19","date_gmt":"2024-11-12T09:29:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/191986\/"},"modified":"2024-11-12T17:29:20","modified_gmt":"2024-11-12T09:29:20","slug":"%e8%a9%b3%e8%a7%a3%e9%99%8d%e4%bd%8e%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e6%95%b8%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/191986\/","title":{"rendered":"\u8a73\u89e3\u964d\u4f4e\u6578\u64da\u5eab\u9023\u63a5\u6578\u7684\u65b9\u6cd5"},"content":{"rendered":"

\u8a73\u89e3\u964d\u4f4e\u6578\u64da\u5eab\u9023\u63a5\u6578\u7684\u65b9\u6cd5<\/h1>\n

\u5728\u73fe\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u8868\u73fe\u81f3\u95dc\u91cd\u8981\u3002\u904e\u591a\u7684\u6578\u64da\u5eab\u9023\u63a5\u4e0d\u50c5\u6703\u5c0e\u81f4\u8cc7\u6e90\u6d6a\u8cbb\uff0c\u9084\u53ef\u80fd\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u7a69\u5b9a\u6027\u3002\u56e0\u6b64\uff0c\u964d\u4f4e\u6578\u64da\u5eab\u9023\u63a5\u6578\u662f\u4e00\u500b\u91cd\u8981\u7684\u512a\u5316\u65b9\u5411\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u6709\u6548\u7684\u65b9\u6cd5\u4f86\u964d\u4f4e\u6578\u64da\u5eab\u9023\u63a5\u6578\uff0c\u4e26\u63d0\u4f9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n

1. \u4f7f\u7528\u9023\u63a5\u6c60<\/h2>\n

\u9023\u63a5\u6c60\u662f\u4e00\u7a2e\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\u7684\u6280\u8853\uff0c\u5b83\u53ef\u4ee5\u91cd\u7528\u73fe\u6709\u7684\u9023\u63a5\uff0c\u800c\u4e0d\u662f\u6bcf\u6b21\u90fd\u5275\u5efa\u65b0\u7684\u9023\u63a5\u3002\u9019\u6a23\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u9023\u63a5\u7684\u958b\u92b7\u3002\u5927\u591a\u6578\u73fe\u4ee3\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u548c\u6846\u67b6\u90fd\u652f\u6301\u9023\u63a5\u6c60\u529f\u80fd\u3002<\/p>\n

import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.SQLException;\nimport javax.sql.DataSource;\nimport org.apache.commons.dbcp2.BasicDataSource;\n\npublic class DatabaseConnection {\n    private static BasicDataSource dataSource;\n\n    static {\n        dataSource = new BasicDataSource();\n        dataSource.setUrl(\"jdbc:mysql:\/\/localhost:3306\/mydb\");\n        dataSource.setUsername(\"user\");\n        dataSource.setPassword(\"password\");\n        dataSource.setInitialSize(5);\n        dataSource.setMaxTotal(10);\n    }\n\n    public static Connection getConnection() throws SQLException {\n        return dataSource.getConnection();\n    }\n}\n<\/code><\/pre>\n
2. \u512a\u5316\u67e5\u8a62<\/h2>\n
\u4e0d\u826f\u7684\u67e5\u8a62\u8a2d\u8a08\u6703\u5c0e\u81f4\u6578\u64da\u5eab\u9023\u63a5\u7684\u6301\u7e8c\u4f54\u7528\u3002\u901a\u904e\u512a\u5316\u67e5\u8a62\uff0c\u53ef\u4ee5\u6e1b\u5c11\u6bcf\u500b\u9023\u63a5\u7684\u57f7\u884c\u6642\u9593\uff0c\u5f9e\u800c\u964d\u4f4e\u540c\u6642\u9700\u8981\u7684\u9023\u63a5\u6578\u3002\u4f7f\u7528\u7d22\u5f15\u3001\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u806f\u63a5\u4ee5\u53ca\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u90fd\u662f\u512a\u5316\u67e5\u8a62\u7684\u6709\u6548\u65b9\u6cd5\u3002<\/p>\n
\u793a\u4f8b\uff1a\u4f7f\u7528\u7d22\u5f15<\/h3>\n
\u5047\u8a2d\u6709\u4e00\u500b\u7528\u6236\u8868\uff0c\u7d93\u5e38\u9700\u8981\u6839\u64da\u7528\u6236\u540d\u67e5\u8a62\u7528\u6236\u4fe1\u606f\u3002\u53ef\u4ee5\u901a\u904e\u5728\u7528\u6236\u540d\u5b57\u6bb5\u4e0a\u5275\u5efa\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\uff1a<\/p>\n
CREATE INDEX idx_username ON users(username);\n<\/code><\/pre>\n
3. \u5be6\u65bd\u7de9\u5b58\u6a5f\u5236<\/h2>\n
\u7de9\u5b58\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u8acb\u6c42\u6b21\u6578\u3002\u901a\u904e\u5c07\u5e38\u7528\u7684\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u53ef\u4ee5\u907f\u514d\u91cd\u8907\u67e5\u8a62\u6578\u64da\u5eab\u3002\u5e38\u898b\u7684\u7de9\u5b58\u6280\u8853\u5305\u62ec\u4f7f\u7528 Redis \u6216 Memcached\u3002<\/p>\n
import redis.clients.jedis.Jedis;\n\npublic class CacheExample {\n    public static void main(String[] args) {\n        Jedis jedis = new Jedis(\"localhost\");\n        jedis.set(\"user:1000\", \"John Doe\");\n        String user = jedis.get(\"user:1000\");\n        System.out.println(user);\n    }\n}\n<\/code><\/pre>\n
4. \u9650\u5236\u540c\u6642\u9023\u63a5\u6578<\/h2>\n
\u5728\u6578\u64da\u5eab\u914d\u7f6e\u4e2d\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u6700\u5927\u540c\u6642\u9023\u63a5\u6578\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u904e\u591a\u7684\u9023\u63a5\u5c0e\u81f4\u8cc7\u6e90\u8017\u76e1\u3002\u6839\u64da\u61c9\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u548c\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u5408\u7406\u8a2d\u7f6e\u9019\u4e00\u53c3\u6578\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n
[mysqld]\nmax_connections = 100\n<\/code><\/pre>\n
5. \u4f7f\u7528\u7570\u6b65\u8655\u7406<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u7570\u6b65\u8655\u7406\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u9023\u63a5\u9700\u6c42\u3002\u901a\u904e\u5c07\u8acb\u6c42\u6392\u968a\u4e26\u5728\u5f8c\u53f0\u8655\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u540c\u6642\u9023\u63a5\u6578\u3002<\/p>\n
\u793a\u4f8b\uff1a\u4f7f\u7528 Java \u7684 CompletableFuture<\/h3>\n
import java.util.concurrent.CompletableFuture;\n\npublic class AsyncDatabase {\n    public static void main(String[] args) {\n        CompletableFuture.runAsync(() -> {\n            \/\/ \u57f7\u884c\u6578\u64da\u5eab\u64cd\u4f5c\n        });\n    }\n}\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u964d\u4f4e\u6578\u64da\u5eab\u9023\u63a5\u6578\u662f\u63d0\u5347\u61c9\u7528\u6027\u80fd\u7684\u91cd\u8981\u63aa\u65bd\u3002\u901a\u904e\u4f7f\u7528\u9023\u63a5\u6c60\u3001\u512a\u5316\u67e5\u8a62\u3001\u5be6\u65bd\u7de9\u5b58\u6a5f\u5236\u3001\u9650\u5236\u540c\u6642\u9023\u63a5\u6578\u4ee5\u53ca\u4f7f\u7528\u7570\u6b65\u8655\u7406\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\u4ecd\u80fd\u4fdd\u6301\u826f\u597d\u7684\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u6709\u6548\u964d\u4f4e\u6578\u64da\u5eab\u9023\u63a5\u6578\u7684\u65b9\u6cd5\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u8cc7\u6e90\u5229\u7528\u7387\uff0c\u78ba\u4fdd\u7a69\u5b9a\u904b\u884c\u8207\u9ad8\u6548\u6578\u64da\u8655\u7406\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-191986","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191986","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=191986"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191986\/revisions"}],"predecessor-version":[{"id":191987,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191986\/revisions\/191987"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=191986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=191986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=191986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}