gorm/groovy 上 mongodb 启动时出现 springboot 初始化错误

Question

在 Java 1.7.0_55、gradle 1.11 和 spring-boot-gradle-plugin:1.2.1.RELEASE.

上解决此 springboot project using MongoDB/GORM/Groovy 的启动问题

我运行项目原样除了对我的遥控器 mongodb 的 application.yml 进行以下更改外：

spring:
    mongodb:
        host: "10.160.8.1"
        databaseName: "citydb"

**启动时，我看到这个 bean 初始化错误 mappingMongoConverter

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mongoTemplate' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoDataAutoConfiguration.class]:
Unsatisfied dependency expressed through constructor argument with index 1 of type [org.springframework.data.mongodb.core.convert.MongoConverter]: : Error creating bean with name 'mappingMongoConverter' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoDataAutoConfiguration.class]:
Unsatisfied dependency expressed through constructor argument with index 1 of type [org.springframework.data.mongodb.core.mapping.MongoMappingContext]: : No qualifying bean of type [org.springframework.data.mongodb.core.mapping.MongoMapping
Context] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.data.mongodb.core.mapping.MongoMappingCo
ntext] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mappingMongoConverter' defined in class path resource [org
/springframework/boot/autoconfigure/mongo/MongoDataAutoConfiguration.class]: Unsatisfied dependency expressed through constructor argument with index 1 of typ
e [org.springframework.data.mongodb.core.mapping.MongoMappingContext]: : No qualifying bean of type [org.springframework.data.mongodb.core.mapping.MongoMappin
gContext] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}; nested excepti
on is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.data.mongodb.core.mapping.MongoMappingC
ontext] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}

我认为这是主要问题：

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mappingMongoConverter' defined in class path resou
rce [org/springframework/boot/autoconfigure/mongo/MongoDataAutoConfiguration.class]: Unsatisfied dependency expressed through constructor argument with index
1 of type [org.springframework.data.mongodb.core.mapping.MongoMappingContext]: : No qualifying bean of type [org.springframework.data.mongodb.core.mapping.Mon
goMappingContext] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}; nested
 exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.data.mongodb.core.mapping.Mongo
MappingContext] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:464)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:
1111)

这可能是 GORM 依赖问题吗？我用的是最新的，org.grails:gorm-mongodb-spring-boot:1.1.0.RELEASE

在 github 上作为问题进行跟踪：https://github.com/spring-guides/gs-accessing-data-gorm-mongodb/issues/6

Answer 1

gorm-mongodb-spring-boot 与 Spring Boot 1.2 不兼容。它创建一个名为 mongoMappingContext 的 bean，以防止 MongoDataAutoConfiguration 创建自己的同名 bean。您应该会在日志中看到这样的消息：

2015-02-25 14:01:30.731  INFO 60231 --- [           main] a.ConfigurationClassBeanDefinitionReader : Skipping bean definition for [BeanMethod:name=mongoMappingContext,declaringClass=org.springframework.boot.autoconfigure.mongo.MongoDataAutoConfiguration]: a definition for bean 'mongoMappingContext' already exists. This top-level bean definition is considered as an override.

您可以通过使用不同名称声明您自己的 org.springframework.data.mongodb.core.mapping.MongoMappingContext bean 来解决此问题，例如：

@Bean
MongoMappingContext springDataMongoMappingContext() {
    return new MongoMappingContext()
}

gorm/groovy 上 mongodb 启动时出现 springboot 初始化错误

springboot initialization error on startup with mongodb on gorm/groovy

spring

mongodb

groovy

grails-orm

spring-boot