Question

我在我的应用程序中使用Quartz作为调度程序。尝试使用Spring boot 2.0功能。我在配置中有2个不同的数据源。一个用于应用程序，另一个用于调度程序。如何使用非主数据源（在本例中为schedulerDataSource）作为Quartz的数据源？请帮忙。

的pom.xml

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

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>       
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-quartz</artifactId>
        </dependency>       
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>wlthint3client</artifactId>
            <version>12.2.1.2</version>
            <scope>system</scope>
            <systemPath>C:/Oracle/products/mw_home/wlserver/server/lib/wlthint3client.jar</systemPath>
        </dependency>
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc</artifactId>
            <version>7</version>
            <scope>system</scope>
            <systemPath>C:/Oracle/products/mw_home/oracle_common/modules/oracle.jdbc/ojdbc7.jar</systemPath>
        </dependency>       
    </dependencies>

application.yml

spring:
  quartz:
    job-store-type: jdbc
    jdbc:
      initialize-schema: never
    properties:
      org:
        quartz:
          scheduler:
            instanceName: ETL
          threadPool:
            threadCount: 50
          jobStore:
            class: org.quartz.impl.jdbcjobstore.JobStoreTX
            driverDelegateClass: org.quartz.impl.jdbcjobstore.oracle.OracleDelegate
            tablePrefix: QRTZ_ 
            useProperties: true

scheduler:
  datasource:
    url: jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=XXXXXX)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=XXXX)))
    username: scheduler
    password: XXXXXX
    driver-class-name: oracle.jdbc.OracleDriver

t3:
  datasource:
    url: jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=XXXXXX)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=XXXXXX)))
    username: app
    password: XXXXXX
    driver-class-name: oracle.jdbc.OracleDriver

AppDataSource.java

@Configuration
public class AppDataSource 
{
    @Bean
    @Primary
    @ConfigurationProperties("t3.datasource")
    public DataSourceProperties t3DataSourceProperties() 
    {
        return new DataSourceProperties();
    }

    @Bean
    @Primary
    @ConfigurationProperties("t3.datasource")
    public HikariDataSource t3DataSource() 
    {
        return t3DataSourceProperties().initializeDataSourceBuilder().type(HikariDataSource.class).build();
    }

    @Bean
    @ConfigurationProperties("scheduler.datasource")
    public DataSourceProperties schedulerDataSourceProperties() 
    {
        return new DataSourceProperties();
    }

    @Bean
    @ConfigurationProperties("scheduler.datasource")
    public HikariDataSource schedulerDataSource() 
    {
        return schedulerDataSourceProperties().initializeDataSourceBuilder().type(HikariDataSource.class).build();
    }

    @Bean
    public PlatformTransactionManager schedulerTransactionManager()
    {
        final DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();
        transactionManager.setDataSource(schedulerDataSource());

        return transactionManager;
    }
}

Application.java

package com.aaa.t3.starter;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration;
import org.springframework.boot.autoconfigure.jms.activemq.ActiveMQAutoConfiguration;
import org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.ComponentScan;

import com.spdji.aaa.jms.JmsService;

@ComponentScan("com.aaa.t3")
@SpringBootApplication(exclude = { ActiveMQAutoConfiguration.class, JmxAutoConfiguration.class, DataSourceTransactionManagerAutoConfiguration.class })
public class Application
{
    public static void main(String[] args) 
    {
        ApplicationContext context = SpringApplication.run(Application.class, args);
        JmsService jmsService = (JmsService) context.getBean("jmsService");
        jmsService.sendMessage();

        /*String[] beans = context.getBeanDefinitionNames();
        Arrays.stream(beans).sorted().forEach(System.out::println);*/
    }
}

尝试使用SchedulerFactoryBeanCustomizer修改数据源，但它仍然引用主数据源。

@Configuration
public class SchedulerConfig 
{
    private DataSource dataSource;

    @Autowired
    public SchedulerConfig(@Qualifier("schedulerDataSource") DataSource dataSource) 
    {
        this.dataSource = dataSource;
    }

    @Bean
    public SchedulerFactoryBeanCustomizer schedulerFactoryBeanCustomizer() 
    {
        return bean -> bean.setDataSource(dataSource);
    }
}

使用调试器验证。 SchedulerConfig中的自动装配数据源是调度程序数据源，但在此之后它已被覆盖。在QuartzAutoConfiguration.quartzDataSourceInitializer中添加了断点并检查了数据源。这不是调度程序数据源。这已被主数据源覆盖。 Quartz auto配置会覆盖SchedulerFactoryBeanCustomizer自定义。我已经打开github.com/spring-projects/spring-boot/issues/12780来修复它。

这是spring-boot中的一个错误。作为解决方法，我删除了spring.quartz.job-store-type属性，然后在customizer中配置了DataSource和PlatformTransactionManager。请参阅以下更新的代码：

@Configuration
public class SchedulerConfig 
{
    private DataSource dataSource;

    private PlatformTransactionManager transactionManager;

    @Autowired
    public SchedulerConfig(@Qualifier("schedulerDataSource") DataSource dataSource, @Qualifier("schedulerTransactionManager") PlatformTransactionManager transactionManager) 
    {
        this.dataSource = dataSource;
        this.transactionManager = transactionManager;
    }

    @Bean
    public SchedulerFactoryBeanCustomizer schedulerFactoryBeanCustomizer() 
    {
        return bean -> 
        {
            bean.setDataSource(dataSource);
            bean.setTransactionManager(transactionManager);
        };
    }
}

Answer 1

您可以通过自己构建SchedulerFactoryBean来自定义数据源：

@Bean
public SchedulerFactoryBean schedulerFactory() {
    SchedulerFactoryBean bean = new SchedulerFactoryBean();
    bean.setDataSource(schedulerDataSource());
    return bean;
}

或者，在Spring Boot 2中，您可以使用SchedulerFactoryBeanCustomizer。这将允许您自定义autoconfigurer实例化的bean，这可能会减少工作量。

@Configuration
public class SchedulerConfig {
    DataSource dataSource;

    @Autowired
    public SchedulerConfig(@Qualifier("scheduler.datasource") DataSource dataSource) {
        this.dataSource = dataSource;
    }

    @Bean
    public SchedulerFactoryBeanCustomizer schedulerFactoryBeanCustomizer()
    {
        return bean -> bean.setDataSource(dataSource);
    }
}

Answer 2

这是spring-boot中的一个错误。作为解决方法，我删除了spring.quartz.job-store-type属性，然后在customizer中配置了DataSource和PlatformTransactionManager。请参阅以下更新的代码：

@Configuration
public class SchedulerConfig 
{
    private DataSource dataSource;

    private PlatformTransactionManager transactionManager;

    @Autowired
    public SchedulerConfig(@Qualifier("schedulerDataSource") DataSource dataSource, @Qualifier("schedulerTransactionManager") PlatformTransactionManager transactionManager) 
    {
        this.dataSource = dataSource;
        this.transactionManager = transactionManager;
    }

    @Bean
    public SchedulerFactoryBeanCustomizer schedulerFactoryBeanCustomizer() 
    {
        return bean -> 
        {
            bean.setDataSource(dataSource);
            bean.setTransactionManager(transactionManager);
        };
    }
}

Answer 3

我通过排除DataSourceAutoConfiguration.class来解决此问题

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class,

并按如下所示自定义调度程序实例：

@Bean("qzDataSource")
@Qualifier("qzDataSource")
public HikariDataSource qzDataSource() {
    return qzDataSourceProperties().initializeDataSourceBuilder()
            .type(HikariDataSource.class).build();
}

@Bean
public PlatformTransactionManager quartzDataSourceTransactionManager(@Qualifier("qzDataSource") DataSource qzDataSource) {
    final DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();
    transactionManager.setDataSource(qzDataSource);
    return transactionManager;
}

@Bean
public SchedulerFactoryBean schedulerFactory(@Qualifier("qzDataSource") DataSource qzDataSource) {
    SchedulerFactoryBean bean = new SchedulerFactoryBean();
    bean.setDataSource(qzDataSource);
    bean.setTransactionManager(quartzDataSourceTransactionManager(qzDataSource));
    return bean;
}

@Bean
public Scheduler scheduler() {
    return schedulerFactory(qzDataSource()).getScheduler();
}

我的完整代码是https://github.com/guzhangyu/learn-spring-cloud/tree/master/springboot-quartz

Spring Boot 2.0 Quartz - 使用非主数据源

3 个答案: