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我正在尝试使用 @EnableMongoRepositories 来使用两个单独的 mongo 存储库,例如:

@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());
    }
}

@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)

据我了解,只有一个选项可以修复它是使用@Profile。我正在使用 maven 进行配置文件管理,但不确定为什么我需要代码中的核心配置文件...

谁能帮我解决误解?谢谢。

4

1 回答 1

3

好吧,您必须以某种方式向 spring 展示哪些配置用于特定情况。否则怎么可能决定创建哪个 MongoDbFactory 实例?所以是的,在两个 @Configuration 类之上使用 @Profile 。

另请注意,Maven 配置文件不是弹簧配置文件。可能是您不必将 maven 混入其中(如果 maven 配置文件仅用于设置弹簧之一)。在这种情况下,您可以-Dspring.profiles.active=profile在运行应用程序时添加。

于 2014-10-16T11:13:33.973 回答