详解SpringBoot Mongo 自增长ID有序规则
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2022-04-06 22:41:18
概述：本文主要介绍springboot基于mongodb有序id生成，如生成工单编号gd202109290001。单机情况下效率每秒生成5000个有序id。实现方式如下maven
概述：本文主要介绍springboot基于mongodb有序id生成，如生成工单编号gd202109290001。单机情况下效率每秒生成5000个有序id。
实现方式如下
maven
<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>
代码编写
@document
@data
public class incr {
@id
private string id;
private string collectionname;
private long incrid;
}
@service
public class incrservice {
@autowired
private mongotemplate mongotemplate;
/**
* 获取自增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();
}
}
@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;
}
}
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