{"id":1937,"date":"2023-04-01T10:00:58","date_gmt":"2023-04-01T02:00:58","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1937"},"modified":"2023-04-22T08:46:36","modified_gmt":"2023-04-22T00:46:36","slug":"springboot-2-integration-with-baidu-uidgenerator","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/01\/springboot-2-integration-with-baidu-uidgenerator\/","title":{"rendered":"SpringBoot 2.0\u96c6\u6210\u767e\u5ea6UidGenerator"},"content":{"rendered":"

UidGenerator\u662f\u767e\u5ea6\u5f00\u6e90\u7684Java\u8bed\u8a00\u5b9e\u73b0\uff0c\u57fa\u4e8eSnowflake\u7b97\u6cd5\u7684\u552f\u4e00ID\u751f\u6210\u5668\u3002<\/p>\n

Github\uff1ahttps:\/\/github.com\/baidu\/uid-generator<\/a>
\n\u53c2\u8003\uff1ahttps:\/\/github.com\/baidu\/uid-generator\/blob\/master\/README.zh_cn.md<\/a><\/p>\n

\u6253\u5305\u5230\u672c\u5730Maven\u4ed3\u5e93\u6216\u53d1\u5e03\u4f9d\u8d56\u5230\u79c1\u670d<\/h2>\n

<\/p>\n

\u4e0b\u8f7d\u6e90\u7801\uff1ahttps:\/\/github.com\/baidu\/uid-generator<\/a> \uff0c\u5e76\u4f9d\u636e\u5b98\u7f51\u521b\u5efa\u597d\u8868<\/p>\n

\u5982\u9700\u4fee\u6539\u6570\u636e\u5e93\u8fde\u63a5\u6c60<\/p>\n

<!--<dependency>\n<groupId>com.alibaba<\/groupId>\n    <artifactId>druid<\/artifactId>\n    <version>1.0.19<\/version>\n    <scope>test<\/scope>\n<\/dependency>-->\n<!--\u66f4\u6362\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u4e3aHikariCP-->\n<dependency>\n    <groupId>com.zaxxer<\/groupId>\n    <artifactId>HikariCP<\/artifactId>\n    <version>2.7.9<\/version>\n<\/dependency><\/code><\/pre>\n
\u4fee\u6539\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u53c2\u6570\u4fe1\u606f<\/p>\n
<!-- \u6570\u636e\u6e90\u914d\u7f6e -->\n<bean id="dataSource"  class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">\n    <property name="driverClassName" value="${mysql.driver}" \/>\n    <property name="connectionTestQuery" value="select 1" \/>\n    <property name="jdbcUrl" value="${jdbc.url}" \/>\n    <property name="username" value="${jdbc.username}" \/>\n    <property name="password" value="${jdbc.password}" \/>\n    <property name="readOnly" value="false" \/>\n    <property name="connectionTimeout" value="30000" \/>\n    <property name="idleTimeout" value="600000" \/>\n    <property name="maxLifetime" value="1800000" \/>\n    <property name="maximumPoolSize" value="15" \/>\n    <!--\n    dataSource.setMaximumPoolSize(15);-->\n<\/bean><\/code><\/pre>\n
mysql.driver=com.mysql.jdbc.Driver\njdbc.url=jdbc:mysql:\/\/192.168.xx.xx:3306\/test?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true\njdbc.username=root\njdbc.password=\/Akk2pyqQ8ohJN8tOmGwdPr64BNxG\/hnjXZqZrp2d7X8BNk1<\/code><\/pre>\n
\u6267\u884cmvn clean install<\/code><\/p>\n
Spring Boot\u5de5\u7a0b\u96c6\u6210<\/h2>\n
\uff081\uff09\u521b\u5efa\u6570\u636e\u5e93\u8868<\/p>\n
DROP TABLE IF EXISTS WORKER_NODE;\nCREATE TABLE WORKER_NODE\n(\nID BIGINT NOT NULL AUTO_INCREMENT COMMENT 'auto increment id',\nHOST_NAME VARCHAR(64) NOT NULL COMMENT 'host name',\nPORT VARCHAR(64) NOT NULL COMMENT 'port',\nTYPE INT NOT NULL COMMENT 'node type: CONTAINER(1), ACTUAL(2), FAKE(3)',\nLAUNCH_DATE DATE NOT NULL COMMENT 'launch date',\nMODIFIED TIMESTAMP NOT NULL COMMENT 'modified time',\nCREATED TIMESTAMP NOT NULL COMMENT 'created time',\nPRIMARY KEY(ID)\n) COMMENT='DB WorkerID Assigner for UID Generator',ENGINE = INNODB;<\/code><\/pre>\n
\uff082\uff09\u5f15\u5165\u4f9d\u8d56<\/p>\n
<dependency>\n    <groupId>com.baidu.fsg<\/groupId>\n    <artifactId>uid-generator<\/artifactId>\n    <version>1.0.0-SNAPSHOT<\/version>\n<\/dependency><\/code><\/pre>\n
\uff083\uff09MyBatis\u914d\u7f6e\u4fe1\u606f<\/p>\n
mybatis:\n  config-location: classpath:mybatis\/mybatis-config.xml\n  mapper-locations:\n  - classpath*:mybatis\/mapper\/*Mapper.xml<\/code><\/pre>\n
\uff084\uff09\u62f7\u8d1dWorkerNodeDAO.java<\/code>\u5230\u81ea\u5df1\u7684SpringBoot\u9879\u76ee\u4e2d\uff0c\u547d\u540d\u6210WorkerNodeMapper.java<\/code><\/p>\n
\uff085\uff09\u62f7\u8d1dWORKER_NODE.xml<\/code>\u5230\u81ea\u5df1\u7684SpringBoot\u9879\u76ee\u4e2d\uff0c\u547d\u540d\u6210WorkerNodeMapper.xml<\/code>\uff0c\u6ce8\u610f\u4fee\u6539namespace<\/code><\/p>\n
\uff086\uff09\u62f7\u8d1dDisposableWorkerIdAssigner.java<\/code>\u5230\u81ea\u5df1\u7684SpringBoot\u9879\u76ee\u4e2d\uff0c\u4fee\u6539\u6ce8\u5165\u7684WorkerNodeDAO<\/code>\u4e3aWorkerNodeMapper<\/code><\/p>\n
\uff087\uff09\u521b\u5efa\u914d\u7f6e\u7c7b<\/p>\n
import com.baidu.fsg.uid.impl.CachedUidGenerator;\nimport com.share.service.DisposableWorkerIdAssigner;\nimport org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.Configuration;\n\n\/**\n * https:\/\/github.com\/baidu\/uid-generator\/blob\/master\/README.zh_cn.md\n * \u767e\u5ea6id\u751f\u6210\u5668\n * \u4e24\u79cd\u751f\u6210\u5668: DefaultUidGenerator\u3001CachedUidGenerator\u3002\u5982\u5bf9UID\u751f\u6210\u6027\u80fd\u6709\u8981\u6c42, \u8bf7\u4f7f\u7528CachedUidGenerator\n * \u5bf9\u5e94Spring\u914d\u7f6e\u5206\u522b\u4e3a: default-uid-spring.xml\u3001cached-uid-spring.xml\n *\/\n@Configuration\npublic class CachedUidGeneratorConfig {\n\n    \/**\n     * \u7528\u5b8c\u5373\u5f03\u7684WorkerIdAssigner, \u4f9d\u8d56DB\u64cd\u4f5c\n     * @return\n     *\/\n    @Bean\n    public DisposableWorkerIdAssigner disposableWorkerIdAssigner() {\n        return new DisposableWorkerIdAssigner();\n    }\n\n    @Bean\n    public CachedUidGenerator cachedUidGenerator(DisposableWorkerIdAssigner disposableWorkerIdAssigner) {\n        CachedUidGenerator cachedUidGenerator = new CachedUidGenerator();\n        cachedUidGenerator.setWorkerIdAssigner(disposableWorkerIdAssigner);\n        \/\/\u4ee5\u4e0b\u4e3a\u53ef\u9009\u914d\u7f6e, \u5982\u672a\u6307\u5b9a\u5c06\u91c7\u7528\u9ed8\u8ba4\u503c\n        cachedUidGenerator.setTimeBits(29);\n        cachedUidGenerator.setWorkerBits(21);\n        cachedUidGenerator.setSeqBits(13);\n        cachedUidGenerator.setEpochStr("2016-09-20");\n\n        \/\/RingBuffer size\u6269\u5bb9\u53c2\u6570, \u53ef\u63d0\u9ad8UID\u751f\u6210\u7684\u541e\u5410\u91cf\n        \/\/\u9ed8\u8ba4:3, \u539fbufferSize=8192, \u6269\u5bb9\u540ebufferSize= 8192 << 3 = 65536\n        cachedUidGenerator.setBoostPower(3);\n        \/\/ \u6307\u5b9a\u4f55\u65f6\u5411RingBuffer\u4e2d\u586b\u5145UID, \u53d6\u503c\u4e3a\u767e\u5206\u6bd4(0, 100), \u9ed8\u8ba4\u4e3a50\n        \/\/ \u4e3e\u4f8b: bufferSize=1024, paddingFactor=50 -> threshold=1024 * 50 \/ 100 = 512\n        \/\/ \u5f53\u73af\u4e0a\u53ef\u7528UID\u6570\u91cf < 512\u65f6, \u5c06\u81ea\u52a8\u5bf9RingBuffer\u8fdb\u884c\u586b\u5145\u8865\u5168\n        \/\/<property name="paddingFactor" value="50"><\/property>\n\n        \/\/\u53e6\u5916\u4e00\u79cdRingBuffer\u586b\u5145\u65f6\u673a, \u5728Schedule\u7ebf\u7a0b\u4e2d, \u5468\u671f\u6027\u68c0\u67e5\u586b\u5145\n        \/\/\u9ed8\u8ba4:\u4e0d\u914d\u7f6e\u6b64\u9879, \u5373\u4e0d\u5b9e\u7528Schedule\u7ebf\u7a0b. \u5982\u9700\u4f7f\u7528, \u8bf7\u6307\u5b9aSchedule\u7ebf\u7a0b\u65f6\u95f4\u95f4\u9694, \u5355\u4f4d:\u79d2\n        cachedUidGenerator.setScheduleInterval(60L);\n\n        \/\/\u62d2\u7edd\u7b56\u7565: \u5f53\u73af\u5df2\u6ee1, \u65e0\u6cd5\u7ee7\u7eed\u586b\u5145\u65f6\n        \/\/\u9ed8\u8ba4\u65e0\u9700\u6307\u5b9a, \u5c06\u4e22\u5f03Put\u64cd\u4f5c, \u4ec5\u65e5\u5fd7\u8bb0\u5f55. \u5982\u6709\u7279\u6b8a\u9700\u6c42, \u8bf7\u5b9e\u73b0RejectedPutBufferHandler\u63a5\u53e3(\u652f\u6301Lambda\u8868\u8fbe\u5f0f)\n        \/\/<property name="rejectedPutBufferHandler" ref="XxxxYourPutRejectPolicy"><\/property>\n        \/\/cachedUidGenerator.setRejectedPutBufferHandler();\n        \/\/\u62d2\u7edd\u7b56\u7565: \u5f53\u73af\u5df2\u7a7a, \u65e0\u6cd5\u7ee7\u7eed\u83b7\u53d6\u65f6 -->\n        \/\/\u9ed8\u8ba4\u65e0\u9700\u6307\u5b9a, \u5c06\u8bb0\u5f55\u65e5\u5fd7, \u5e76\u629b\u51faUidGenerateException\u5f02\u5e38. \u5982\u6709\u7279\u6b8a\u9700\u6c42, \u8bf7\u5b9e\u73b0RejectedTakeBufferHandler\u63a5\u53e3(\u652f\u6301Lambda\u8868\u8fbe\u5f0f) -->\n        \/\/<property name="rejectedTakeBufferHandler" ref="XxxxYourTakeRejectPolicy"><\/property>\n\n        return cachedUidGenerator;\n    }\n}<\/code><\/pre>\n
\uff088\uff09Controller\u6d4b\u8bd5<\/p>\n
@RestController\n@RequestMapping("\/user")\n@Slf4j\npublic class UserController {\n\n    @Autowired\n    private UserService userService;\n\n    @Autowired\n    private UidGenerator uidGenerator;\n\n    @GetMapping("\/uid")\n    public String uid() {\n        long time1 = System.nanoTime();\n        long uid = uidGenerator.getUID();\n        long time2 = System.nanoTime();\n        System.out.println(time2-time1);\n        System.out.println(uidGenerator.parseUID(uid));\n        System.out.println("-----------------------------");\n        long timeMillis = System.currentTimeMillis();\n        for (int i = 0; i < 10000000; i++) {\n            uidGenerator.getUID();\n        }\n        long timeMillis2 = System.currentTimeMillis();\n        System.out.println("\u8017\u65f6:" + (timeMillis2-timeMillis));\n        return String.valueOf(uid);\n    }\n    ....\n}<\/code><\/pre>\n
\uff089\uff09\u542f\u52a8\u5de5\u7a0b\uff0c\u8bbf\u95ee\uff1ahttp:\/\/localhost:8080\/user\/uid<\/a><\/p>\n
\u63a7\u5236\u53f0\u6253\u5370\uff08\u672c\u5730\u751f\u621010000000\u6761id\u8017\u65f6913ms\uff09<\/p>\n
\n
\u6ce8\uff1a\u6bcf\u6b21\u542f\u52a8\u9879\u76eework_node\u8868\u90fd\u4f1a\u6709\u4e00\u6761\u65e5\u5fd7<\/p>\n<\/blockquote>\n
\u7b2c\u4e09\u65b9spring-boot-starter<\/h2>\n
uid-generator-spring-boot-starter: https:\/\/github.com\/wujun234\/uid-generator-spring-boot-starter<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
UidGenerator\u662f\u767e\u5ea6\u5f00\u6e90\u7684Java\u8bed\u8a00\u5b9e\u73b0\uff0c\u57fa\u4e8eSnowflake\u7b97\u6cd5\u7684\u552f\u4e00ID\u751f\u6210\u5668\u3002 Githu […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[490],"class_list":["post-1937","post","type-post","status-publish","format-standard","hentry","category-spring-boot","tag-uidgenerator"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1937"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1937\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}