Question

我正在尝试使用@EnableMongoRepositories来使用两个独立的mongo存储库，如：

@Configuration
@EnableMongoRepositories(mongoTemplateRef = "mongoBOTemplate", basePackages = "sandbox.dao.bo")
public class BOMongoConfig {

    @Value("#{mongo.hostBO}")
    private String hostBO;

    @Value("#{mongo.databaseBO}")
    private String databaseBO;

    @Bean
    public MongoDbFactory mongoBODbFactory() throws Exception {
        return new SimpleMongoDbFactory(new MongoClient(hostBO), databaseBO);
    }

    @Bean
    public MongoTemplate mongoBOTemplate() throws Exception {
        return new MongoTemplate(mongoBODbFactory());
    }
}

和

@Configuration
@EnableMongoRepositories(mongoTemplateRef = "mongoTemplate", basePackages = "sandbox.dao.sandbox")
public class SandboxMongoConfig {

    @Value("#{mongo.host}")
    private String host;

    @Value("#{mongo.database}")
    private String database;

    @Bean
    public MongoDbFactory mongoDbFactory() throws Exception {
        return new SimpleMongoDbFactory(new MongoClient(host), database);
    }

    @Bean
    public MongoTemplate mongoTemplate() throws Exception {
        return new MongoTemplate(mongoDbFactory());
    }
}

但是我因为这个错误而感到困惑：

710  [RMI TCP Connection(2)-127.0.0.1] ERROR org.springframework.web.servlet.DispatcherServlet  - Context initialization failed
java.lang.IllegalArgumentException: Environment must not be null!
    at org.springframework.util.Assert.notNull(Assert.java:112)
    at org.springframework.data.repository.config.RepositoryConfigurationSourceSupport.<init>(RepositoryConfigurationSourceSupport.java:50)
    at org.springframework.data.repository.config.AnnotationRepositoryConfigurationSource.<init>(AnnotationRepositoryConfigurationSource.java:74)
    at org.springframework.data.repository.config.RepositoryBeanDefinitionRegistrarSupport.registerBeanDefinitions(RepositoryBeanDefinitionRegistrarSupport.java:74)
    at org.springframework.context.annotation.ConfigurationClassParser.processImport(ConfigurationClassParser.java:340)
    at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:233)
    at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:154)
    at org.springframework.context.annotation.ConfigurationClassParser.processImport(ConfigurationClassParser.java:349)
    at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:233)
    at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:154)
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:140)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:282)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:223)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:630)

据我所知，只有一个选项可以解决它使用@Profile。我正在使用maven进行个人资料管理而不确定为什么我需要代码中的硬核配置文件...

有人可以帮我解决误会吗？感谢。

Answer 1

嗯，你必须以某种方式显示弹簧在特定情况下使用哪些配置。否则，如何决定创建哪个MongoDbFactory实例？所以是的，在@Configuration类之上使用@Profile。

另请注意，maven配置文件不是弹簧配置文件。可能是你没有把maven混合到那里（如果maven配置文件仅用于设置spring）。在这种情况下，您可以在运行应用时添加-Dspring.profiles.active=profile。

关于@EnableMongoRepositories的澄清

1 个答案: