Use Spring-boot to create a timed task. Simultaneous creation of multi-threaded execution of timed tasks.

1, download spring-boot maven project: http://start.spring.io/directly customize the project name.

2, Start class add Note: @EnableScheduling

Specific business code:

Package com.huike.ftp.main;

Import Java.util.Date;
Import Java.util.concurrent.Executor;

Import Org.apache.logging.log4j.LogManager;
Import Org.apache.logging.log4j.Logger;
Import Org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
Import Org.springframework.aop.interceptor.SimpleAsyncUncaughtExceptionHandler;
Import Org.springframework.context.annotation.Bean;
Import org.springframework.context.annotation.Configuration;
Import Org.springframework.scheduling.TaskScheduler;
Import Org.springframework.scheduling.Trigger;
Import Org.springframework.scheduling.TriggerContext;
Import Org.springframework.scheduling.annotation.AsyncConfigurer;
Import org.springframework.scheduling.annotation.EnableScheduling;
Import Org.springframework.scheduling.annotation.SchedulingConfigurer;
Import Org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
Import Org.springframework.scheduling.config.ScheduledTaskRegistrar;
Import Org.springframework.scheduling.support.CronTrigger;
Import org.springframework.stereotype.Component;

Import Com.huike.ftp.model.TransferPo;
Import Com.huike.ftp.service.ParseFile;
Import Com.huike.ftp.service.SftpUtil;

@Configuration
@Component
@EnableScheduling
public class Dynamictransfer implements Schedulingconfigurer, Asyncconfigurer {

Private final Logger Logger = Logmanager.getlogger (GetClass ());

/**
* Parallel Task Usage policy: Multithreading
*
* @return Threadpooltaskscheduler thread pool
*/
@Bean (Destroymethod = "shutdown")
Public Threadpooltaskscheduler TaskScheduler () {
Threadpooltaskscheduler Scheduler = new Threadpooltaskscheduler ();
Scheduler.setpoolsize (3);
Scheduler.setthreadnameprefix ("task-");
Scheduler.setawaitterminationseconds (60);
Scheduler.setwaitfortaskstocompleteonshutdown (TRUE);
return scheduler;
}

/*
* Asynchronous Task
*/
@Override
Public Executor Getasyncexecutor () {
Executor Executor = TaskScheduler ();
return executor;
}

/*
* Asynchronous Task exception handling
*/
@Override
Public Asyncuncaughtexceptionhandler Getasyncuncaughtexceptionhandler () {
return new Simpleasyncuncaughtexceptionhandler ();
}

@Override
public void Configuretasks (Scheduledtaskregistrar taskregistrar) {
TaskScheduler TaskScheduler = TaskScheduler ();
Taskregistrar.settaskscheduler (TaskScheduler);
for (Transferpo transferPo:ParseFile.list) {
Schedule (Taskregistrar, Transferpo);
}

}

private void Schedule (Scheduledtaskregistrar Taskregistrar, Transferpo Transferpo) {
Taskregistrar.addtriggertask (New Runnable () {
@Override
public void Run () {
try {
Logger.info ("Perform file Migration:" + transferpo.tostring ());
New Sftputil (). Programe (Transferpo);
} catch (Exception e) {
Logger.error ("Operation Error", E);
}
}
}, New Trigger () {
@Override
Public Date nextexecutiontime (Triggercontext triggercontext) {
Timed task trigger, can modify the execution period of the scheduled task
Crontrigger trigger = new Crontrigger (Transferpo.getcron ());
Date nextexecdate = Trigger.nextexecutiontime (Triggercontext);
return nextexecdate;
}
});
}
}

Note that in the entire business code, a cron expression is set up, and the business logic in the corresponding thread is executed on a timed basis.

Test Class Code:

Package com.huike.ftp.main;

Import Com.huike.ftp.service.ParseFile;
Import org.springframework.boot.SpringApplication;
Import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Ftpmain {

/**
* Start the Portal
*
* @param args
* @throws Exception
*/
public static void Main (string[] args) throws Exception {
if (args = = NULL | | Args.length < 1) {
throw new Exception ("Please pass the parameters of the absolute path of the hkftp.properties file");
}
Parsefile.attributes (Args[0]);

Springapplication.run (Ftpmain.class, args);

}
}

Caveats: The test class and the corresponding code need to be placed under the same package.

I created a MAVEN project where I set up the main class for packaging and put all dependent packages into jar packages. Note the packaging method.

So the specific pom file is as follows:

<?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.huike.ftp.hkftp</groupId>
<artifactId>hkftp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>hkftp</name>
<description>demo Project for Spring boot</description>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.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</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>

<dependency>
<groupid>commons-logging</groupid>
<artifactid>commons-logging </artifactid>
<version>1.1.3</version>
</dependency>
<dependency>
<groupid>org.slf4j</groupid>
<artifactid>slf4j-log4j12</artifactid>
<version >1.7.21</version>
<scope>test</scope>
</dependency>
<!--https:// Mvnrepository.com/artifact/com.jcraft/jsch-->
<dependency>
<groupid>com.jcraft</ Groupid>
<artifactid>jsch</artifactid>
<version>0.1.42</version>
</ Dependency>,
<!--Https://mvnrepository.com/artifact/org.apache.directory.studio/org.apache.commons.io- ->
<dependency>
<groupid>org.apache.directory.studio</groupid>
<artifactId >org.apache.commons.io</artifactid>
<version>2.4</version>
</dependency>

</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<mainClass>com.huike.ftp.main.FtpMain</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.5.5</version>
<configuration>
<archive>
<manifest>
<mainClass>com.huike.ftp.main.FtpMain</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-jar</id>
<!--binding to the package life cycle phase--
<phase>package</phase>
<goals>
<!--binding to the package life cycle phase--
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

Use Spring-boot to create a timed task. Simultaneous creation of multi-threaded execution of timed tasks.