数据源的Spring Boot自动配置

我尝试使用Hibernate 5和Postgres 9创建Spring Boot应用程序.现在我有下一个错误:

Parameter 0 of constructor in org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration required a bean of type 'javax.sql.DataSource' that could not be found.
    - Bean method 'dataSource' not loaded because @ConditionalOnProperty (spring.datasource.jndi-name) did not find property 'jndi-name'
    - Bean method 'dataSource' not loaded because @ConditionalOnBean (types: org.springframework.boot.jta.XADataSourceWrapper; SearchStrategy: all) did not find any beans

虽然,我添加了spring.datasource.*属性:

spring.datasource.url=jdbc:postgresql://localhost:5432/postgres
spring.datasource.username=postgres
spring.datasource.password=root

我的pom.xml:

    5.2.6.Final
    1.10.6.RELEASE



    org.springframework.boot
    spring-boot-starter-parent
    1.4.3.RELEASE



    
        org.springframework.boot
        spring-boot-autoconfigure
    

    
        org.springframework.boot
        spring-boot-starter-web
    

    
        org.springframework
        spring-context
        ${spring.version}
    
    
        org.springframework
        spring-tx
        ${spring.version}
    
    
        org.springframework
        spring-orm
        ${spring.version}
    
    
        org.springframework.data
        spring-data-jpa
        ${spring.data.version}
    

    
        org.hibernate
        hibernate-core
        ${hibernate.version}
    

    
        org.projectlombok
        lombok
        1.16.12
    

    
        org.postgresql
        postgresql
        9.4.1212
    

报告:

=========================
AUTO-CONFIGURATION REPORT
=========================


Positive matches:
-----------------

AopAutoConfiguration matched:
- @ConditionalOnClass found required classes 'org.springframework.context.annotation.EnableAspectJAutoProxy', 'org.aspectj.lang.annotation.Aspect', 'org.aspectj.lang.reflect.Advice' (OnClassCondition)
- @ConditionalOnProperty (spring.aop.auto=true) matched (OnPropertyCondition)

AopAutoConfiguration.JdkDynamicAutoProxyConfiguration matched:
- @ConditionalOnProperty (spring.aop.proxy-target-class=false) matched (OnPropertyCondition)

DataSourceAutoConfiguration matched:
- @ConditionalOnClass found required classes 'javax.sql.DataSource', 'org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType' (OnClassCondition)

DataSourceAutoConfiguration#dataSourceInitializer matched:
- @ConditionalOnMissingBean (types: org.springframework.boot.autoconfigure.jdbc.DataSourceInitializer; SearchStrategy: all) did not find any beans (OnBeanCondition)

DataSourceTransactionManagerAutoConfiguration matched:
- @ConditionalOnClass found required classes 'org.springframework.jdbc.core.JdbcTemplate', 'org.springframework.transaction.PlatformTransactionManager' (OnClassCondition)

DataSourceTransactionManagerAutoConfiguration.TransactionManagementConfiguration matched:
- @ConditionalOnMissingBean (types: org.springframework.transaction.annotation.AbstractTransactionManagementConfiguration; SearchStrategy: all) did not find any beans (OnBeanCondition)
...
DataSourceAutoConfiguration.EmbeddedDatabaseConfiguration:
Did not match:
- EmbeddedDataSource did not find embedded database (DataSourceAutoConfiguration.EmbeddedDatabaseCondition)

DataSourceAutoConfiguration.PooledDataSourceConfiguration:
Did not match:
- AnyNestedCondition 0 matched 2 did not; NestedCondition on DataSourceAutoConfiguration.PooledDataSourceCondition.PooledDataSourceAvailable PooledDataSource did not find supported DataSource; NestedCondition on DataSourceAutoConfiguration.PooledDataSourceCondition.ExplicitType @ConditionalOnProperty (spring.datasource.type) did not find property 'type' (DataSourceAutoConfiguration.PooledDataSourceCondition)

DataSourceAutoConfiguration.TomcatDataSourceJmxConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.tomcat.jdbc.pool.DataSourceProxy' (OnClassCondition)

DataSourcePoolMetadataProvidersConfiguration.CommonsDbcp2PoolDataSourceMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.commons.dbcp2.BasicDataSource' (OnClassCondition)

DataSourcePoolMetadataProvidersConfiguration.CommonsDbcpPoolDataSourceMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.commons.dbcp.BasicDataSource' (OnClassCondition)

DataSourcePoolMetadataProvidersConfiguration.HikariPoolDataSourceMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'com.zaxxer.hikari.HikariDataSource' (OnClassCondition)

DataSourcePoolMetadataProvidersConfiguration.TomcatDataSourcePoolMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.tomcat.jdbc.pool.DataSource' (OnClassCondition)

DataSourceTransactionManagerAutoConfiguration.DataSourceTransactionManagerConfiguration:
Did not match:
- @ConditionalOnSingleCandidate (types: javax.sql.DataSource; SearchStrategy: all) did not find any beans (OnBeanCondition)

有任何想法吗？在大多数教程中,它都非常标准且非常简单,似乎我错过了一些小部分..

您在类路径上缺少几个类(主要与池相关).最简单的解决方案是为JPA使用Spring启动启动器,即:

    org.springframework.boot
    spring-boot-starter-data-jpa

    org.springframework
    spring-context
    ${spring.version}


    org.springframework
    spring-tx
    ${spring.version}


    org.springframework
    spring-orm
    ${spring.version}


    org.springframework.data
    spring-data-jpa
    ${spring.data.version}



    org.hibernate
    hibernate-core
    ${hibernate.version}

@Configuration
public class DBConfig{

       @Bean
       public DataSource dataSource(){
          DriverManagerDataSource dataSource = new DriverManagerDataSource();
          dataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
          dataSource.setUrl("your url");
          dataSource.setUsername( "username" );
          dataSource.setPassword( "password" );
          return dataSource;
       }

}