2020-03-1811: 29: 37springboot task

Asynchronous tasks:

@EnableAysnc、@Aysnc

Regular tasks:

@EnableScheduling、@Scheduled

Mail tasks:

pom:

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.study.springboot-job</groupId>
    <artifactId>study-job</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>study-job</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
        <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>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

YML

Server: 
  Port: 9999 
the Spring: 
  mail: 
    username: XXX @ # qq.com own mailbox 
    password: aaaedijj # set up their own content in open smtp to send a short message obtained in the qq mailbox 
    Host: smtp.qq.com 
    properties.mail. smtp.ssl.enable: to true # the configuration is required to send attachments

Master Boot categories:

package com.study.springboot.job;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;

@EnableAsync //开启异步任务
@EnableScheduling//开启定时任务
@SpringBootApplication
public class StudyJobApplication {

    public static void main(String[] args) {
        SpringApplication.run(StudyJobApplication.class, args);
    }

}

Core code:

controller

package com.study.springboot.job.controller;


import com.study.springboot.job.service.SyncService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class AsyncController {

    @Autowired
    private SyncService syncService;

    @GetMapping("/async/test")
    @ResponseBody
    public String getMsg(){
        syncService.syncJob();
        return "async test ...";
    }
}

service

package com.study.springboot.job.service;


import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;

import java.text.SimpleDateFormat;
import java.util.Date;

@Service
public class SyncService {

    //异步任务
    @Async
    public void syncJob(){
        System.out.println("异步任务开始执行。");
        try {
            Thread.sleep(5000);
        } catch(InterruptedException E) { 
            e.printStackTrace (); 
        } 
        System.out.println ( . "Asynchronous task is finished" ); 
    } 

    / * field allows the special character values allowed 
    sec 0-59, - * / 
    min 0-59, - * / 
    h 0-23, - * / 
    date 1-31, - * / LWC? 
    January 1-12 - * / 
    week 0-7 or SUN-SAT 0,7 is SUN, -? * / LC # 

    special character represents meaning 
    , enumeration 
    - interval 
    * any 
    / step 
    ? day / week conflict matching 
    L last 
    W days
    After the calculated value C and calendar Information
    Week # 4 # 2, the second Thursday * / 

    // timer task 
    @Scheduled (the cron = "* * * 0 * 0-7" )
     public  void schedulJob () { 
        System.out.println ( "task starts execution timing of . "+ new new the SimpleDateFormat. (" the mM-dd-YYYY HH: mm: SS ") the format ( new new a Date ())); 
    } 
}

Send a test message:

package com.study.springboot.job;

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;

import javax.mail.internet.MimeMessage;
import java.io.File;

@SpringBootTest
class StudyJobApplicationTests {

    @Autowired
    private JavaMailSenderImpl javaMailSender;

    privateFromMailAddress = String "[email protected]" ; // own mailbox qq
     Private String toMailAddress = "[email protected]" ; 163 // own mailbox 

    @Test 
    void contextLoads () { 
    } 

    @Test 
    public  void Testmail () { 

        SimpleMailMessage SimpleMailMessage = new new SimpleMailMessage (); 
        simpleMailMessage.setSubject ( "test message service" ); 
        simpleMailMessage.setText ( "test messages sent to the mailbox 163" ); 
        simpleMailMessage.setFrom (fromMailAddress); 
        simpleMailMessage.setTo (toMailAddress); 

        javaMailSender. send (simpleMailMessage);
    }

    @Test 
    public  void testFuZaMail () throws Exception { 

        the MimeMessage mimeMailMessage = javaMailSender.createMimeMessage (); 

        MimeMessageHelper MimeMessageHelper = new new MimeMessageHelper (mimeMailMessage, to true ); 

        mimeMessageHelper.setSubject ( "Test message with attachments" ); 
        mimeMessageHelper.setText ( "<B style =: the body of 'Color Green'> </ B> ", to true ); 

        mimeMessageHelper.addAttachment ( " 1.jpg ", new new File (" C: \\ \\ 25017 Desktop the Users \\ \\ \\ art springcloud introduction \\ hot deployment .png " )); // send the file to a local address 
        MimeMessageHelper.addAttachment ("2.jpg",new File("C:\\Users\\25017\\Desktop\\springcloud\\技术介绍\\热部署2.png"));

        mimeMessageHelper.setFrom(fromMailAddress);
        mimeMessageHelper.setTo(toMailAddress);

        javaMailSender.send(mimeMailMessage);
    }
}