Question

SpringBoot多个数据源 - 在外部Tomcat容器中失败

我们正在使用springboot创建两个不同的数据源（microsoft sqlserver）。这在Eclipse Luna tomcat容器内正常工作。当我们尝试在外部tomcat（8.0.x）容器中部署war文件时，失败并出现以下异常。

请告诉我们我们是否遗漏了任何配置，因为它在eclipse中正常工作

错误：

org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'transactionManager' is defined
    org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:698)
    org.springframework.boot.autoconfigure.condition.OnBeanCondition.getPrimaryBeans(OnBeanCondition.java:237)
    org.springframework.boot.autoconfigure.condition.OnBeanCondition.hasSingleAutowireCandidate(OnBeanCondition.java:230)
    org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:102)
    org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47)
    org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:102)
    org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader$TrackedConditionEvaluator.shouldSkip(ConfigurationClassBeanDefinitionReader.java:436)
    org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:127)
    org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:116)
    org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:333)
    org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243)
    org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273)
    org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98)
    org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:677)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:519)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)

First Datasource：

@Configuration
@EnableJpaRepositories(basePackages = "com.example.adapter.repository.first",
entityManagerFactoryRef = "entityManagerFactory", transactionManagerRef = "transactionManager")
@EntityScan("com.example.adapter.domain.first")
@EnableTransactionManagement
public class FirstDataSourceConfig {

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

    @Primary
    @Bean(name = "entityManagerFactory")
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(final EntityManagerFactoryBuilder builder) {
        return builder
            .dataSource(dataSource())
            .packages("com.example.adapter.domain.first")
            .persistenceUnit("first")
            .build()
    }

    @Primary
    @Bean(name = "transactionManager")
    public PlatformTransactionManager transactionManager(@Qualifier("entityManagerFactory") EntityManagerFactory entityManagerFactory){
        return new JpaTransactionManager(entityManagerFactory)
    }
}

第二个数据源：

@Configuration
@EnableJpaRepositories(basePackages = "com.example.adapter.repository.second",
entityManagerFactoryRef = "secondEntityManagerFactory", transactionManagerRef = "secondTransactionManager")
@EntityScan("com.example.adapter.domain.second")
@EnableTransactionManagement
public class SecondDataSourceConfig {

    @Bean(name = "secondDataSource")
    @ConfigurationProperties(prefix = "datasource.second")
    public DataSource secondDataSource(){
        return DataSourceBuilder.create().build()
    }

    @Bean(name = "secondEntityManagerFactory")
    public LocalContainerEntityManagerFactoryBean secondEntityManagerFactory(final EntityManagerFactoryBuilder builder){
        return builder
            .dataSource(secondDataSource())
            .packages("com.example.adapter.domain.second")
            .persistenceUnit("secondPersistenceUnit")
            .build()
    }

    @Bean(name = "secondTransactionManager")
    public PlatformTransactionManager secondTransactionManager(@Qualifier("secondEntityManagerFactory") final EntityManagerFactory factory) {
        return new JpaTransactionManager(factory)
    }
}

属性：

spring.datasource.url: jdbc:sqlserver://XXXXX:1433;databaseName=XXXXX
spring.datasource.username: XXXXXX
spring.datasource.password: XXXXXX
spring.datasource.driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver

datasource.second.url: jdbc:sqlserver://XXXXXX:1433;databaseName=XXXXXX
datasource.second.username: XXXXXX
datasource.second.password: XXXXXX
datasource.second.driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver

spring.jpa.properties.hibernate.show_sql: false
spring.jpa.properties.hibernate.dialect: org.hibernate.dialect.SQLServerDialect

MainApplication：

@EnableCaching
@CompileStatic
@EnableScheduling
@SpringBootApplication
@EnableAutoConfiguration(exclude=[MultipartAutoConfiguration.class])
class MainApplication extends SpringBootServletInitializer{

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(MainApplication.class);
    }

    static void main(String[] args) throws Exception {
        SpringApplication.run(MainApplication.class, args)
    }

}

build.xml（Gradle Build更改 - 外部战争部署）

apply plugin: 'war'

providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")

configurations {
    providedRuntime
}

Answer 1

通过删除应用程序中@EnableAutoConfiguration的多次使用来解决问题。我们注意到@EnableAutoConfiguration已经与MainApplication.java一起用在Swaggerconfig文件中，我们在Swaggerconfig文件中删除了。

现在应用程序在本地和外部tomcat中正常工作。

Answer 2

尽管该解决方案适用于Windows操作系统中的本地和外部tomcat，但在Linux环境中失败。

Linux行为：

a）Tomcat不允许TransactionManager的自定义bean名称和@Primary数据源的EntityManagerFactory，如firstTransactionManager和firstEntityManagerFactory，因此强制使用bean名称作为transactionManager和entityManagerFactory。 [与具有外部tomcat容器的Windows操作系统相同] b）在将bean名称更改为TransactionManager和EntityManagerFactory之后，应用程序部署在Linux Tomcat中而没有任何失败，但始终在主数据源中执行查询并获取未找到表的错误，其中表中的第二个数据源的一部分

注意： - Tomcat版本为8.0.29，JDK版本为1.8.31，在Windows和Linux中都是相同的。

请告诉我们我们是否遗漏了任何配置，因为它在Windows Tomcat中正常运行。

SpringBoot多个数据源 - 仅在外部Tomcat容器中失败

错误：

First Datasource：

第二个数据源：

属性：

MainApplication：

build.xml（Gradle Build更改 - 外部战争部署）

2 个答案: