SpringBoot集成ElaticJob定时器的实现代码

2023-09-11 13:50:05 315

本文介绍了SpringBoot集成ElaticJob定时器的实现代码，分享给大家，具体如下:

POM文件配置



4.0.0

com.example
demojob
0.0.1-SNAPSHOT
jar

demojob
DemoprojectforSpringBoot


org.springframework.boot
spring-boot-starter-parent
2.0.2.RELEASE




UTF-8
UTF-8
1.8





org.springframework.boot
spring-boot-starter-web



org.springframework.boot
spring-boot-starter-test
test





elastic-job-common-core
com.dangdang
2.1.5


elastic-job-lite-core
com.dangdang
2.1.5


elastic-job-lite-spring
com.dangdang
2.1.5


elastic-job-cloud-executor
com.dangdang
2.1.5





org.mariadb.jdbc
mariadb-java-client
1.5.4



com.alibaba
druid-spring-boot-starter
1.1.9



com.baomidou
mybatisplus-spring-boot-starter
1.0.5


com.baomidou
mybatis-plus
2.1.9








org.springframework.boot
spring-boot-maven-plugin

yaml文件配置（也可以用application.properties一样的）

#配置配置数据源
spring:
datasource:
type:com.alibaba.druid.pool.DruidDataSource
driver-class-name:org.mariadb.jdbc.Driver
name:elastic-job-event
url:jdbc:mariadb://127.0.0.1:3306/elasticjob
username:root
password:123456
druid:
validationQuery:SELECT1
initialSize:10
minIdle:10
maxActive:200
minEvictableIdleTimeMillis:180000
testOnBorrow:false
testWhileIdle:true
removeAbandoned:true
removeAbandonedTimeout:1800
logAbandoned:true
poolPreparedStatements:true
maxOpenPreparedStatements:100

#配置Zookeeper
regCenter:
serverList:localhost:2181
namespace:hulk_order_task

#配置定时器规则
simpleJob:
cron:0/5****?
shardingTotalCount:1
shardingItemParameters:0=1

开始写代码

RegistryCenterConfig

packagecom.example.demojob.config;

importcom.dangdang.ddframe.job.reg.zookeeper.ZookeeperConfiguration;
importcom.dangdang.ddframe.job.reg.zookeeper.ZookeeperRegistryCenter;
importorg.springframework.beans.factory.annotation.Value;
importorg.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;

/**
*注册中心配置
*用于注册和协调作业分布式行为的组件，目前仅支持Zookeeper。
*@authorshudalei
*/
@Configuration
@ConditionalOnExpression("'${regCenter.serverList}'.length()>0")
publicclassRegistryCenterConfig{
@Bean(initMethod="init")
publicZookeeperRegistryCenterregCenter(@Value("${regCenter.serverList}")finalStringserverList,
@Value("${regCenter.namespace}")finalStringnamespace){
returnnewZookeeperRegistryCenter(newZookeeperConfiguration(serverList,namespace));
}
}

JobEventConfig

packagecom.example.demojob.config;

importcom.dangdang.ddframe.job.event.JobEventConfiguration;
importcom.dangdang.ddframe.job.event.rdb.JobEventRdbConfiguration;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;

importjavax.annotation.Resource;
importjavax.sql.DataSource;

/**
*如果想把作业运行的内容写到DB中，我们需要用到另一个构造器，
*同时定义自己的JobEventConfiguration，
*目前来说实现这个接口的只有一个类JobEventRdbConfiguration，
*通过这个可以将作业运行的痕迹进行持久化到DB的操作。
*@authorshudalei
*/
@Configuration
publicclassJobEventConfig{
@Resource
privateDataSourcedataSource;

@Bean
publicJobEventConfigurationjobEventConfiguration(){
returnnewJobEventRdbConfiguration(dataSource);
}
}

SimpleJobConfig

packagecom.example.demojob.config;

importcom.dangdang.ddframe.job.config.JobCoreConfiguration;
importcom.dangdang.ddframe.job.config.simple.SimpleJobConfiguration;
importcom.dangdang.ddframe.job.event.JobEventConfiguration;
importcom.dangdang.ddframe.job.lite.api.JobScheduler;
importcom.dangdang.ddframe.job.lite.config.LiteJobConfiguration;
importcom.dangdang.ddframe.job.lite.spring.api.SpringJobScheduler;
importcom.dangdang.ddframe.job.reg.zookeeper.ZookeeperRegistryCenter;
importcom.example.demojob.job.TestSimpleJob;
importorg.springframework.beans.factory.annotation.Value;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;

importjavax.annotation.Resource;

@Configuration
publicclassSimpleJobConfig{

/**
*注册中心
*/
@Resource
privateZookeeperRegistryCenterregCenter;
/**
*job事件配置
*/
@Resource
privateJobEventConfigurationjobEventConfiguration;

/**
*微信accesstoken获取任务对象
*
*/
@Resource
privateTestSimpleJobsimpleJob;

/**
*
*@paramcron定时任务cron配置
*@paramshardingTotalCount任务分片数
*@paramshardingItemParameters任务分片参数
*@returnJobScheduler任务调度器
*/
@Bean(initMethod="init")
publicJobSchedulersimpleJobScheduler(@Value("${simpleJob.cron}")finalStringcron,
@Value("${simpleJob.shardingTotalCount}")finalintshardingTotalCount,
@Value("${simpleJob.shardingItemParameters}")finalStringshardingItemParameters){
returnnewSpringJobScheduler(simpleJob,regCenter,
getLiteJobConfiguration(simpleJob.getClass(),cron,shardingTotalCount,shardingItemParameters),
jobEventConfiguration);
}

/**
*
*@paramjobClass任务调度类
*@paramcron定时任务cron配置
*@paramshardingTotalCount任务分片数
*@paramshardingItemParameters任务分片参数
*@returnLiteJobConfiguration任务配置
*/
privateLiteJobConfigurationgetLiteJobConfiguration(finalClassjobClass,finalStringcron,
finalintshardingTotalCount,finalStringshardingItemParameters){
returnLiteJobConfiguration
.newBuilder(
newSimpleJobConfiguration(JobCoreConfiguration.newBuilder(jobClass.getName(),cron,shardingTotalCount)
.shardingItemParameters(shardingItemParameters).build(),jobClass.getCanonicalName()))
.overwrite(true).build();
}
}

TestSimpleJob，定时器任务本身

packagecom.example.demojob.job;

importcom.dangdang.ddframe.job.api.ShardingContext;
importcom.dangdang.ddframe.job.api.simple.SimpleJob;
importorg.springframework.stereotype.Component;

@Component
publicclassTestSimpleJobimplementsSimpleJob{

privateintcount;
//任务就是每5秒执行一次控制台输出1，2，3……
@Override
publicvoidexecute(ShardingContextshardingContext){
count++;
System.out.println("task"+count);
}
}

最后在Docker下安装Zookeeper

安装脚本compose文件如下

version:'2'
services:
zookeeper01:
image:zookeeper
restart:always
hostname:zookeeper01
ports:
-2181:2181
environment:
ZOO_MY_ID:1
ZOO_SERVERS:server.1=0.0.0.0:2888:3888server.2=zookeeper02:2888:3888server.3=zookeeper03:2888:3888
zookeeper02:
image:zookeeper
restart:always
hostname:zookeeper02
ports:
-2182:2181
environment:
ZOO_MY_ID:2
ZOO_SERVERS:server.1=zookeeper01:2888:3888server.2=0.0.0.0:2888:3888server.3=zookeeper03:2888:3888
zookeeper03:
image:zookeeper
restart:always
hostname:zookeeper03
ports:
-2183:2181
environment:
ZOO_MY_ID:3
ZOO_SERVERS:server.1=zookeeper01:2888:3888server.2=zookeeper02:2888:3888server.3=0.0.0.0:2888:3888

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

SpringBoot集成ElaticJob定时器的实现代码

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