无法运行第二个数据源的Spring JUnit测试

Question

我正在使用SpringJUnit4ClassRunner运行我的集成测试。我必须在Spring Boot REST Web服务中使用两个数据源，因为我想为Liquibase和Application查询使用不同的数据库用户。当我运行测试时，第二个数据源没有被创建。

以下是我的测试代码

@RunWith(SpringJUnit4ClassRunner.class) 
@SpringApplicationConfiguration(classes = Application.class) 
@WebAppConfiguration 
@IntegrationTest 
public class DomainServiceImplTest { 

    @Test 
    public void testCreateDomain() throws Exception { 
    } 
} 

以下是我的数据源实例

@Configuration 
@EnableTransactionManagement 
public class DatabaseConfiguration { 

    private final Logger log = LoggerFactory.getLogger(DatabaseConfiguration.class); 

    @Inject 
    private Environment env; 

    @Autowired(required = false) 
    private MetricRegistry metricRegistry; 

    @Bean(destroyMethod = "close") 
    @Primary 
    public DataSource dataSource(DataSourceProperties dataSourceProperties, NileRegistrarProperties nileRegistrarProperties) { 
     log.debug("Configuring Datasource"); 
     if (dataSourceProperties.getUrl() == null) { 
      log.error("Your database connection pool configuration is incorrect! The application" + 
        " cannot start. Please check your Spring profile, current profiles are: {}", 
       Arrays.toString(env.getActiveProfiles())); 

      throw new ApplicationContextException("Database connection pool is not configured correctly"); 
     } 
     HikariConfig config = new HikariConfig(); 
     config.setDriverClassName(dataSourceProperties.getDriverClassName()); 
     config.setJdbcUrl(dataSourceProperties.getUrl()); 
     if (dataSourceProperties.getUsername() != null) { 
      config.addDataSourceProperty("user", dataSourceProperties.getUsername()); 
     } else { 
      config.addDataSourceProperty("user", ""); // HikariCP doesn't allow null user 
     } 
     if (dataSourceProperties.getPassword() != null) { 
      config.addDataSourceProperty("password", dataSourceProperties.getPassword()); 
     } else { 
      config.addDataSourceProperty("password", ""); // HikariCP doesn't allow null password 
     } 

     //MySQL optimizations, see https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Configuration 
     if ("com.mysql.jdbc.jdbc2.optional.MysqlDataSource".equals(dataSourceProperties.getDriverClassName())) { 
      config.addDataSourceProperty("cachePrepStmts", nileRegistrarProperties.getDatasource().isCachePrepStmts()); 
      config.addDataSourceProperty("prepStmtCacheSize", nileRegistrarProperties.getDatasource().getPrepStmtCacheSize()); 
      config.addDataSourceProperty("prepStmtCacheSqlLimit", nileRegistrarProperties.getDatasource().getPrepStmtCacheSqlLimit()); 
     } 
     if (metricRegistry != null) { 
      config.setMetricRegistry(metricRegistry); 
     } 
     return new HikariDataSource(config); 
    } 

    @Bean(destroyMethod = "close") 
    public DataSource liquibaseDataSource(DataSourceProperties dataSourceProperties, LiquibaseProperties liquibaseProperties) { 
     log.debug("Configuring Liquibase Datasource"); 
     if (dataSourceProperties.getUrl() == null) { 
      log.error("Your database connection pool configuration is incorrect! The application" + 
        " cannot start. Please check your Spring profile, current profiles are: {}", 
       Arrays.toString(env.getActiveProfiles())); 

      throw new ApplicationContextException("Database connection pool is not configured correctly"); 
     } 
     HikariConfig config = new HikariConfig(); 
     config.setDriverClassName(dataSourceProperties.getDriverClassName()); 
     config.setJdbcUrl(dataSourceProperties.getUrl()); 
     // Close all connections after liquibase operation is complete. 
     config.setMinimumIdle(0); 
     if (dataSourceProperties.getUsername() != null) { 
      config.addDataSourceProperty("user", liquibaseProperties.getUser()); 
     } else { 
      config.addDataSourceProperty("user", ""); // HikariCP doesn't allow null user 
     } 
     if (dataSourceProperties.getPassword() != null) { 
      config.addDataSourceProperty("password", liquibaseProperties.getPassword()); 
     } else { 
      config.addDataSourceProperty("password", ""); // HikariCP doesn't allow null password 
     } 

     return new HikariDataSource(config); 
    } 

    @Bean 
    public SpringLiquibase liquibase(@Qualifier("liquibaseDataSource") DataSource dataSource, 
            LiquibaseProperties liquibaseProperties) { 

     // Use liquibase.integration.spring.SpringLiquibase if you don't want Liquibase to start asynchronously 
     SpringLiquibase liquibase = new AsyncSpringLiquibase(); 
     liquibase.setDataSource(dataSource); 
     liquibase.setChangeLog("classpath:config/liquibase/master.xml"); 
     liquibase.setContexts(liquibaseProperties.getContexts()); 
     liquibase.setDefaultSchema(liquibaseProperties.getDefaultSchema()); 
     liquibase.setDropFirst(liquibaseProperties.isDropFirst()); 
     liquibase.setShouldRun(liquibaseProperties.isEnabled()); 

     log.debug("Configuring Liquibase"); 

     return liquibase; 
    } 
} 

以下是错误消息。

Error creating bean with name 'dataSourceInitializer': Invocation of init method failed; 

当我使用单一数据源时，一切工作正常。

Answer 1

我正在一个类似的项目，我有两个数据源。这是我做的， datasource.primary.url=jdbc:mysql://localhost:3306/databaseName datasource.primary.username=username datasource.primary.password=password

同样，对于第二个数据源， datasource.secondary.url=jdbc:mysql://localhost:3306/databaseName datasource.secondary.username=username datasource.secondary.password=password

而且在配置类做的只是，

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

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

无论我需要一个数据源，我只是自动装配它想：

public void setJdbcTemplate(@Qualifier("secondaryDatasource") DataSource dataSource) { 
    this.jdbcTemplate = new NamedParameterJdbcTemplate(dataSource); 
} 

注：数据源注释@Primary将如果在自动装配时不使用@Qualifier，则注入。

这个测试非常简单。如果你想使用内存数据库进行测试（最常见的技术），只需提供另一组属性，内存数据库的url，这可以由测试类使用