原文:gcdd1993.github.io/分佈式任務調度XXL-…java
XXL-JOB是一個輕量級分佈式任務調度平臺,其核心設計目標是開發迅速、學習簡單、輕量級、易擴展。現已開放源代碼並接入多家公司線上產品線,開箱即用。mysql
官方文檔很完善,很少贅述。本文主要是搭建XXL-JOB
和簡單使用的記錄。git
$ sudo apt-get update
$ sudo apt-get install mysql-server
## 設置mysql,主要是安全方面的,密碼策略等
$ mysql_secure_installation
## 配置遠程訪問
$ sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf
bind-address = 0.0.0.0
$ sudo service mysql restart
$ sudo service mysql status
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2019-06-05 13:23:41 HKT; 45s ago
...
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$ mysql -u root -p
mysql> CREATE database if NOT EXISTS `xxl-job` default character set utf8 collate utf8_general_ci;
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$ mysql -u root -p
mysql> CREATE USER 'xxl-job'@'%' IDENTIFIED BY 'xxlJob2019@';
mysql> GRANT ALL PRIVILEGES ON `xxl-job`.* TO 'xxl-job'@'%';
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$ git clone git@github.com:xuxueli/xxl-job.git
$ cd xxl-job
複製代碼
我比較熟悉Idea
開發工具,因此這裏使用Idea
的Gradle
項目進行演示。github
打開xxl-job
,項目結構以下spring
打開xxl-job-admin/resources/application.properties
,修改mysql鏈接信息sql
### xxl-job, datasource
spring.datasource.url=jdbc:mysql://192.168.32.129:3306/xxl-job?Unicode=true&characterEncoding=UTF-8
spring.datasource.username=xxl-job
spring.datasource.password=xxlJob2019@
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使用/xxl-job/doc/db/tables_xxl_job.sql
初始化數據庫,初始化完應該以下圖數據庫
準備就緒後,就能夠啓動項目了,而後打開地址http://localhost:8080/xxl-job-admin將會看到首頁ubuntu
$ cd /xxl-job
$ mvn install
...
[INFO] xxl-job ............................................ SUCCESS [ 0.513 s]
[INFO] xxl-job-core ....................................... SUCCESS [ 4.258 s]
[INFO] xxl-job-admin ...................................... SUCCESS [ 5.525 s]
[INFO] xxl-job-executor-samples ........................... SUCCESS [ 0.016 s]
[INFO] xxl-job-executor-sample-spring ..................... SUCCESS [ 2.188 s]
[INFO] xxl-job-executor-sample-springboot ................. SUCCESS [ 0.892 s]
[INFO] xxl-job-executor-sample-jfinal ..................... SUCCESS [ 1.753 s]
[INFO] xxl-job-executor-sample-nutz ....................... SUCCESS [ 1.316 s]
[INFO] xxl-job-executor-sample-frameless .................. SUCCESS [ 0.358 s]
[INFO] xxl-job-executor-sample-jboot ...................... SUCCESS [ 1.279 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 18.549 s
[INFO] Finished at: 2019-06-05T14:40:25+08:00
[INFO] ------------------------------------------------------------------------
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看到以上信息,說明咱們打包成功了,在/xxl-job/xxl-job-admin
目錄下會存在jar文件:xxl-job-admin-2.1.0-SNAPSHOT.jar
vim
$ sudo apt install openjdk-8-jdk
$ java -version
openjdk version "1.8.0_212"
OpenJDK Runtime Environment (build 1.8.0_212-8u212-b03-0ubuntu1.16.04.1-b03)
OpenJDK 64-Bit Server VM (build 25.212-b03, mixed mode)
$ sudo mkdir -p /data/xxl-job
$ sudo cd /data/xxl-job
## 上傳咱們打包好的jar至此目錄,並添加軟鏈接
$ sudo ln -s xxl-job-admin-2.1.0-SNAPSHOT.jar current.jar
## 註冊爲system服務,能夠達到異常重啓,開機自啓等目的
$ sudo vim /etc/systemd/system/xxl-job.service
Description=xxl-job Service Daemon
After=mysql.service
[Service]
Type=simple
Environment="JAVA_OPTS= -Xmx1024m -Xms1024m -XX:+UseG1GC -XX:MaxGCPauseMillis=200 -XX:NewRatio=3"
ExecStart=java -jar /data/xxl-job/current.jar
Restart=always
WorkingDirectory=/data/xxl-job/
[Install]
WantedBy=multi-user.target
$ sudo systemctl enable xxl-job.service
$ sudo service xxl-job start
$ sudo service xxl-job status
● xxl-job.service
Loaded: loaded (/etc/systemd/system/xxl-job.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2019-06-05 15:30:08 HKT; 2min 34s ago
...
複製代碼
咱們訪問一下http://192.168.32.129:8080/xxl-job-admin:安全
以上,咱們的任務調度管理端已經搭建完成,接下來,讓咱們測試下任務調度。
直接使用自帶的SpringBoot
測試項目xxl-job-executor-sample-springboot
進行測試,修改配置文件
xxl-job-executor-sample-springboot=http://192.168.32.129:8080/xxl-job-admin
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編寫一個簡單的任務,打印100次當前序列
package com.xxl.job.executor.service.jobhandler;
import com.xxl.job.core.biz.model.ReturnT;
import com.xxl.job.core.handler.IJobHandler;
import com.xxl.job.core.handler.annotation.JobHandler;
import com.xxl.job.core.log.XxlJobLogger;
import org.springframework.stereotype.Component;
import java.util.concurrent.TimeUnit;
/** * TODO * * @author gaochen * @date 2019/6/5 */
@JobHandler(value="gcddJobHandler")
@Component
public class GcddJobHandler extends IJobHandler {
@Override
public ReturnT<String> execute(String param) throws Exception {
for (int i = 0; i < 100; i++) {
XxlJobLogger.log("XXL-JOB, print " + i);
TimeUnit.SECONDS.sleep(1);
}
return SUCCESS;
}
}
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而後啓動執行器,啓動完成後,咱們會發現管理頁面的執行器列表會多出咱們剛纔啓動的執行器
能夠看到,任務已經按照咱們的規劃執行成功了,很是的方便。
想要了解更詳細的內容,請訪問xxl-job官網