如何在spring-boot中禁用spring-data-mongodb自动配置

Question

有没有人尝试在Spring Boot时禁用mongodb的自动配置？

我正在尝试使用spring-data-mongodb进行spring-boot; 使用基于Java的配置；使用spring-boot
1.2.1.RELEASE，我导入spring-boot-starter-web及其父pom进行依赖项管理。我还导入了spring-data-
mongodb（也尝试过spring-boot-starter-mongodb）。

我需要连接到两个不同的MongoDB服务器。因此，我需要为mongo连接，MongoTemplate等配置两组实例。 我也想禁用自动配置。
由于我要连接到多个服务器，因此不需要自动配置一个默认的MongoTemplate和GridFsTemplate bean。

我的主班看起来像这样：

@Configuration
@EnableAutoConfiguration(exclude={MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})
@ComponentScan
//@SpringBootApplication // @Configuration @EnableAutoConfiguration @ComponentScan 
public class MainRunner {

    public static void main(String[] args) {
        SpringApplication.run(MainRunner.class, args);
    }
}

我的两个mongo配置类如下所示：

@Configuration
@EnableMongoRepositories(basePackageClasses = {Test1Repository.class},
        mongoTemplateRef = "template1",
        includeFilters = {@ComponentScan.Filter(type = FilterType.REGEX, pattern = ".*Test1Repository")}
)
public class Mongo1Config {

    @Bean
    public Mongo mongo1() throws UnknownHostException {
        return new Mongo("localhost", 27017);
    }

    @Primary
    @Bean
    public MongoDbFactory mongoDbFactory1() throws UnknownHostException {
        return new SimpleMongoDbFactory(mongo1(), "test1");
    }

    @Primary
    @Bean
    public MongoTemplate template1() throws UnknownHostException {
        return new MongoTemplate(mongoDbFactory1());
    }
}

和

@Configuration
@EnableMongoRepositories(basePackageClasses = {Test2Repository.class},
        mongoTemplateRef = "template2",
        includeFilters = {@ComponentScan.Filter(type = FilterType.REGEX, pattern = ".*Test2Repository")}
)
public class Mongo2Config {

    @Bean
    public Mongo mongo2() throws UnknownHostException {
        return new Mongo("localhost", 27017);
    }

    @Bean
    public MongoDbFactory mongoDbFactory2() throws UnknownHostException {
        return new SimpleMongoDbFactory(mongo2(), "test2");
    }

    @Bean
    public MongoTemplate template2() throws UnknownHostException {
        return new MongoTemplate(mongoDbFactory2());
    }
}

通过此设置，一切正常。如果我从mongoDbFactory1和template1
bean中删除@Primary批注，则应用程序将失败，并出现一个似乎尚未禁用自动配置的异常。下面列出了异常消息：

org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:961)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:950)
    at com.fourexpand.buzz.web.api.template.MainRunner.main(MainRunner.java:26)
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:98)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:75)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:378)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:155)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:157)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
    ... 7 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter': Injection of autowired dependencies failed; nested exception is  org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.core.io.ResourceLoader org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.resourceLoader; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'gridFsTemplate' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoDataAutoConfiguration.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [org.springframework.data.mongodb.MongoDbFactory]: : No qualifying bean of type [org.springframework.data.mongodb.MongoDbFactory] is defined: expected single matching bean but found 2: mongoDbFactory2,mongoDbFactory1; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [org.springframework.data.mongodb.MongoDbFactory] is defined: expected single matching bean but found 2: mongoDbFactory2,mongoDbFactory1

Answer 1

正如安迪·威尔金森（Andy Wilkinson）在评论中指出的那样，在将EnableAutoConfiguration与exclude
list一起使用时，请确保没有其他使用EnableAutoConfiguration或SpringBootApplication注释的类。