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
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<?xml version="1.0" encoding="utf-8"?><project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelversion>4.0.0</modelversion> <groupid>com.example</groupid> <artifactid>demojob</artifactid> <version>0.0.1-snapshot</version> <packaging>jar</packaging> <name>demojob</name> <description>demo project for spring boot</description> <parent> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-parent</artifactid> <version>2.0.2.release</version> <relativepath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceencoding>utf-8</project.build.sourceencoding> <project.reporting.outputencoding>utf-8</project.reporting.outputencoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-web</artifactid> </dependency> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-test</artifactid> <scope>test</scope> </dependency> <!--elastic-job--> <dependency> <artifactid>elastic-job-common-core</artifactid> <groupid>com.dangdang</groupid> <version>2.1.5</version> </dependency> <dependency> <artifactid>elastic-job-lite-core</artifactid> <groupid>com.dangdang</groupid> <version>2.1.5</version> </dependency> <dependency> <artifactid>elastic-job-lite-spring</artifactid> <groupid>com.dangdang</groupid> <version>2.1.5</version> </dependency> <dependency> <artifactid>elastic-job-cloud-executor</artifactid> <groupid>com.dangdang</groupid> <version>2.1.5</version> </dependency> <!--mariadb--> <dependency> <groupid>org.mariadb.jdbc</groupid> <artifactid>mariadb-java-client</artifactid> <version>1.5.4</version> </dependency> <!--druid--> <dependency> <groupid>com.alibaba</groupid> <artifactid>druid-spring-boot-starter</artifactid> <version>1.1.9</version> </dependency> <!--mybatis plus--> <dependency> <groupid>com.baomidou</groupid> <artifactid>mybatisplus-spring-boot-starter</artifactid> <version>1.0.5</version> </dependency> <dependency> <groupid>com.baomidou</groupid> <artifactid>mybatis-plus</artifactid> <version>2.1.9</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-maven-plugin</artifactid> </plugin> </plugins> </build></project> |
yaml文件配置（也可以用application.properties一样的）
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# 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: select 1 initialsize: 10 minidle: 10 maxactive: 200 minevictableidletimemillis: 180000 testonborrow: false testwhileidle: true removeabandoned: true removeabandonedtimeout: 1800 logabandoned: true poolpreparedstatements: true maxopenpreparedstatements: 100# 配置zookeeperregcenter: 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
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package com.example.demojob.config;import com.dangdang.ddframe.job.reg.zookeeper.zookeeperconfiguration;import com.dangdang.ddframe.job.reg.zookeeper.zookeeperregistrycenter;import org.springframework.beans.factory.annotation.value;import org.springframework.boot.autoconfigure.condition.conditionalonexpression;import org.springframework.context.annotation.bean;import org.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。 * @author shudalei */@configuration@conditionalonexpression("'${regcenter.serverlist}'.length() > 0")public class registrycenterconfig { @bean(initmethod = "init") public zookeeperregistrycenter regcenter(@value("${regcenter.serverlist}") final string serverlist, @value("${regcenter.namespace}") final string namespace) { return new zookeeperregistrycenter(new zookeeperconfiguration(serverlist, namespace)); }} |
jobeventconfig
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package com.example.demojob.config;import com.dangdang.ddframe.job.event.jobeventconfiguration;import com.dangdang.ddframe.job.event.rdb.jobeventrdbconfiguration;import org.springframework.context.annotation.bean;import org.springframework.context.annotation.configuration;import javax.annotation.resource;import javax.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。 * @author shudalei */@configurationpublic class jobeventconfig { @resource private datasource datasource; @bean public jobeventconfiguration jobeventconfiguration() { return new jobeventrdbconfiguration(datasource); }} |
simplejobconfig
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package com.example.demojob.config;import com.dangdang.ddframe.job.config.jobcoreconfiguration;import com.dangdang.ddframe.job.config.simple.simplejobconfiguration;import com.dangdang.ddframe.job.event.jobeventconfiguration;import com.dangdang.ddframe.job.lite.api.jobscheduler;import com.dangdang.ddframe.job.lite.config.litejobconfiguration;import com.dangdang.ddframe.job.lite.spring.api.springjobscheduler;import com.dangdang.ddframe.job.reg.zookeeper.zookeeperregistrycenter;import com.example.demojob.job.testsimplejob;import org.springframework.beans.factory.annotation.value;import org.springframework.context.annotation.bean;import org.springframework.context.annotation.configuration;import javax.annotation.resource;@configurationpublic class simplejobconfig { /** * 注册中心 */ @resource private zookeeperregistrycenter regcenter; /** * job事件配置 */ @resource private jobeventconfiguration jobeventconfiguration; /** * 微信access token获取任务对象 * */ @resource private testsimplejob simplejob; /** * * @param cron 定时任务cron配置 * @param shardingtotalcount 任务分片数 * @param shardingitemparameters 任务分片参数 * @return jobscheduler 任务调度器 */ @bean(initmethod = "init") public jobscheduler simplejobscheduler(@value("${simplejob.cron}") final string cron, @value("${simplejob.shardingtotalcount}") final int shardingtotalcount, @value("${simplejob.shardingitemparameters}") final string shardingitemparameters) { return new springjobscheduler(simplejob, regcenter, getlitejobconfiguration(simplejob.getclass(), cron, shardingtotalcount, shardingitemparameters), jobeventconfiguration); } /** * * @param jobclass 任务调度类 * @param cron 定时任务cron配置 * @param shardingtotalcount 任务分片数 * @param shardingitemparameters 任务分片参数 * @return litejobconfiguration 任务配置 */ private litejobconfiguration getlitejobconfiguration(final class<? extends com.dangdang.ddframe.job.api.simple.simplejob> jobclass, final string cron, final int shardingtotalcount, final string shardingitemparameters) { return litejobconfiguration .newbuilder( new simplejobconfiguration(jobcoreconfiguration.newbuilder(jobclass.getname(), cron, shardingtotalcount) .shardingitemparameters(shardingitemparameters).build(), jobclass.getcanonicalname())) .overwrite(true).build(); }} |
testsimplejob，定时器任务本身
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package com.example.demojob.job;import com.dangdang.ddframe.job.api.shardingcontext;import com.dangdang.ddframe.job.api.simple.simplejob;import org.springframework.stereotype.component;@componentpublic class testsimplejob implements simplejob { private int count; //任务就是每5秒执行一次控制台输出1，2，3…… @override public void execute(shardingcontext shardingcontext) { count++; system.out.println("task " + count); }} |
最后在docker下安装 zookeeper
安装脚本compose文件如下
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version: '2'services: zookeeper01: image: zookeeper restart: always hostname: zookeeper01 ports: - 2181:2181 environment: zoo_my_id: 1 zoo_servers: server.1=0.0.0.0:2888:3888 server.2=zookeeper02:2888:3888 server.3=zookeeper03:2888:3888 zookeeper02: image: zookeeper restart: always hostname: zookeeper02 ports: - 2182:2181 environment: zoo_my_id: 2 zoo_servers: server.1=zookeeper01:2888:3888 server.2=0.0.0.0:2888:3888 server.3=zookeeper03:2888:3888 zookeeper03: image: zookeeper restart: always hostname: zookeeper03 ports: - 2183:2181 environment: zoo_my_id: 3 zoo_servers: server.1=zookeeper01:2888:3888 server.2=zookeeper02:2888:3888 server.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服务器之家。
原文链接：https://www.jianshu.com/p/62ebedc764b7
