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

有没有人尝试过在 spring-boot 中禁用 mongodb 的自动配置？

我正在尝试使用 spring-data-mongodb 来启动 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 进行依赖管理。我还导入了 spring-data-mongodb （也尝试了 spring-boot-starter-mongodb ）。

我需要连接到两个不同的 MongoDB 服务器。所以我需要为mongo连接、MongoTemplate等配置两组实例。我还想禁用自动配置。由于我要连接到多个服务器，因此不需要自动配置单个默认 MongoTemplate 和 GridFsTemplate bean。

我的主要课程如下所示：

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

and

@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());
    }
}

通过这个设置一切正常。如果我从 mongoDbFactory1 和 template1 bean 中删除 @Primary 注释，应用程序将失败并出现似乎尚未禁用自动配置的异常。异常信息如下：

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

我就是这样做的：

@SpringBootApplication(exclude = {
  MongoAutoConfiguration.class, 
  MongoDataAutoConfiguration.class
})

或按照建议Dan Oak https://stackoverflow.com/users/2601742/dan-oak:

spring.autoconfigure.exclude= \
  org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration,\
  org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration