Springboot整合Quartz框架的入门demo

柔情只为你懂 2023-10-15 23:24 19阅读 0赞

## 技术栈 ##

Springboot框架

Quartz框架

## demo需求 ##

1、创建一个向控制台打印时间的任务

2、对创建的任务，立即执行一次，随后每隔5秒执行一次

## 项目构建 ##

### 1、创建项目，并引入依赖 ###

<?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>3.1.3</version>
            <relativePath/> 
        </parent>
        <groupId>com.example</groupId>
        <artifactId>demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>demo</name>
        <description>demo</description>
        <properties>
            <java.version>17</java.version>
        </properties>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-security</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>3.0.2</version>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>runtime</scope>
                <optional>true</optional>
            </dependency>
            <dependency>
                <groupId>com.mysql</groupId>
                <artifactId>mysql-connector-j</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter-test</artifactId>
                <version>3.0.2</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.security</groupId>
                <artifactId>spring-security-test</artifactId>
                <scope>test</scope>
            </dependency>
            
            <dependency>
                <groupId>org.quartz-scheduler</groupId>
                <artifactId>quartz</artifactId>
                <version>2.3.2</version>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        <excludes>
                            <exclude>
                                <groupId>org.projectlombok</groupId>
                                <artifactId>lombok</artifactId>
                            </exclude>
                        </excludes>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    
    </project>

### 2、创建任务类 ###

创建的任务类只需要实现Quartz框架的Job类，并实现excute方法，将需要进行的任务功能模块写在excute方法下，本次项目的功能是向控制台打印时间，具体代码如下：

public class TestJob implements Job {
        
        @Override
        public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
            String data= LocalDateTime.now()
                    .format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
            System.out.println("Start data backup,current time:"+data);
    
        }
    }

### 3、构建调度类 ###

Schduler调度器是管理触发器trigger 和JobDetail实例进行管理，触发器负责指定job的触发规则

具体代码如下：

public class countTestSchduler {
        public static void main(String[] args) throws SchedulerException {
            Scheduler scheduler= StdSchedulerFactory.getDefaultScheduler();
            //定义任务调度示例，并于testJob绑定
            JobDetail job= JobBuilder.newJob(counterTest.class)
    
                    .withIdentity("countJob","countJobDetail")
                    .build();
                    //定义触发器，会马上执行，接着回根据参数慢慢执行
            Trigger trigger=TriggerBuilder.newTrigger()
                    .withIdentity("countTrigger","testTriggerGroup")
                    .startNow()
                    .withSchedule(SimpleScheduleBuilder.repeatSecondlyForever(5))
                    .build();
            //使用触发器执行
            scheduler.scheduleJob(job,trigger);
            //开始任务
            scheduler.start();
        }
    }

## 启动demo执行效果 ##

![12512781fca14507849106a8a3d0753f.png][]

[12512781fca14507849106a8a3d0753f.png]: https://img-blog.csdnimg.cn/12512781fca14507849106a8a3d0753f.png