概述：本文主要介紹springboot基于mongodb有序id生成，如生成工單編號GD202109290001。單機情況下效率每秒生成5000個有序ID。
實現(xiàn)方式如下
maven
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<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-mongodb</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency></dependencies> |
代碼編寫
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@Document@Datapublic class Incr { @Id private String id; private String collectionName; private Long incrId;} |
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@Servicepublic class IncrService { @Autowired private MongoTemplate mongoTemplate; /** * 獲取自增ID * @param collectionName * @return */ public Long getIncrId(String collectionName){ Query query = new Query(Criteria.where("collectionName").is(collectionName)); Update update = new Update(); update.inc("incrId"); FindAndModifyOptions options = FindAndModifyOptions.options(); options.upsert(true); options.returnNew(true); Incr incr = mongoTemplate.findAndModify(query,update,options,Incr.class); return incr.getIncrId(); }} |
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@RestController@RequestMapping(value = "incr")public class IncrController { @Autowired private IncrService incrService; @RequestMapping(value = "test") public Object test(){ long start = System.currentTimeMillis(); List<String> aas = new ArrayList<>(); for (int i=0;i<10000;i++){ aas.add(i+""); } int i = 0; aas.parallelStream().forEach(aa -> { incrService.getIncrId(aa+""); }); System.out.println(System.currentTimeMillis()-start); return true; }} |
到此這篇關于詳解SpringBoot Mongo 自增長ID有序規(guī)則的文章就介紹到這了,更多相關SpringBoot Mongo 自增長ID內容請搜索服務器之家以前的文章或繼續(xù)瀏覽下面的相關文章希望大家以后多多支持服務器之家！
原文鏈接：https://juejin.cn/post/7013175299638575135
