Spring BeanCreationException:创建名为“batchConfigurer”的bean时出错

我已经通过了许多链接，如：，但我仍然得到下面的错误。我已经在Spring Boot批处理应用程序中配置了这两个数据源

以下错误-

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'batchConfigurer': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Unable to initialize Spring Batch
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:138) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:424) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1700) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at com.prateek.SpringBatchClassicDbApplication.main(SpringBatchClassicDbApplication.java:12) [classes/:na]
Caused by: java.lang.IllegalStateException: Unable to initialize Spring Batch
    at org.springframework.boot.autoconfigure.batch.BasicBatchConfigurer.initialize(BasicBatchConfigurer.java:101) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_151]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_151]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_151]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:365) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:308) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:135) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    ... 18 common frames omitted
Caused by: java.lang.IllegalArgumentException: dataSource or dataSourceClassName or jdbcUrl is required.
    at com.zaxxer.hikari.HikariConfig.validate(HikariConfig.java:1063) ~[HikariCP-2.7.9.jar:na]
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:109) ~[HikariCP-2.7.9.jar:na]
    at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) ~[spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) ~[spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) ~[spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:319) ~[spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:356) ~[spring-jdbc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.batch.support.DatabaseType.fromMetaData(DatabaseType.java:100) ~[spring-batch-infrastructure-4.0.1.RELEASE.jar:4.0.1.RELEASE]
    at org.springframework.batch.core.repository.support.JobRepositoryFactoryBean.afterPropertiesSet(JobRepositoryFactoryBean.java:183) ~[spring-batch-core-4.0.1.RELEASE.jar:4.0.1.RELEASE]
    at org.springframework.boot.autoconfigure.batch.BasicBatchConfigurer.createJobRepository(BasicBatchConfigurer.java:131) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.autoconfigure.batch.BasicBatchConfigurer.initialize(BasicBatchConfigurer.java:96) ~[spring-boot-autoconfigure-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    ... 25 common frames omitted

CommonConfig.java

@Configuration
@EnableBatchProcessing
@PropertySource("classpath:scheduler.properties")
public class CommonConfig {

    @Bean
    @Primary
    @ConfigurationProperties(prefix = "spring.primary.datasource")
    public DataSource primaryDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    @ConfigurationProperties(prefix = "spring.secondary.datasource")
    public DataSource secondaryDataSource() {
        return DataSourceBuilder.create().build();
    }
}

应用。财产

EmployeesJob.java

---

您得到的错误是dataSource或dataSourceClassName或jdbcUrl是必需的。以下是代码中的问题，即前缀不正确，请将代码更新为以下内容：

CommonConfig.java

@Configuration
@EnableBatchProcessing
@PropertySource("classpath:scheduler.properties")
public class CommonConfig {

    @Bean
    @Primary
    @ConfigurationProperties(prefix = "spring.primary.datasource")
    public DataSource primaryDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    @ConfigurationProperties(prefix = "spring.secondary.datasource")
    public DataSource secondaryDataSource() {
        return DataSourceBuilder.create().build();
    }
}

---

请参考此链接

您收到的错误数据源或数据源ClassName或jdbcUrl是必需的。以下是代码中的问题，即前缀不正确，请将代码更新为以下内容：

CommonConfig.java

@Configuration
@EnableBatchProcessing
@PropertySource("classpath:scheduler.properties")
public class CommonConfig {

    @Bean
    @Primary
    @ConfigurationProperties(prefix = "spring.primary.datasource")
    public DataSource primaryDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    @ConfigurationProperties(prefix = "spring.secondary.datasource")
    public DataSource secondaryDataSource() {
        return DataSourceBuilder.create().build();
    }
}

---

请参考此链接

我能够解决此问题，如下所示：

@Bean
    @Primary
    @ConfigurationProperties("spring.dsmysql")
    public DataSourceProperties firstDataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    @Primary
    @ConfigurationProperties("spring.dsmysql")
    public DataSource primaryDataSource() {
        return firstDataSourceProperties().initializeDataSourceBuilder().build();
    }

    @Bean
    @ConfigurationProperties("spring.dspost")
    public DataSourceProperties secondDataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    @ConfigurationProperties("spring.dspost")
    public DataSource secondaryDataSource() {
        return secondDataSourceProperties().initializeDataSourceBuilder().build();
    }

加

spring.dsmysql.type=com.zaxxer.hikari.HikariDataSource

---

我能够像下面这样解决这个问题：

@Bean
    @Primary
    @ConfigurationProperties("spring.dsmysql")
    public DataSourceProperties firstDataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    @Primary
    @ConfigurationProperties("spring.dsmysql")
    public DataSource primaryDataSource() {
        return firstDataSourceProperties().initializeDataSourceBuilder().build();
    }

    @Bean
    @ConfigurationProperties("spring.dspost")
    public DataSourceProperties secondDataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    @ConfigurationProperties("spring.dspost")
    public DataSource secondaryDataSource() {
        return secondDataSourceProperties().initializeDataSourceBuilder().build();
    }

加

spring.dsmysql.type=com.zaxxer.hikari.HikariDataSource

---

请查看是否缺少任何步骤检查属性文件是否在类路径中，错误是因为找不到属性Let-us。请查看是否缺少任何步骤检查属性文件是否在类路径中，错误是因为找不到属性Let-us。