无法使用Grails 3.1.1连接到mongo数据库

我从头开始创建应用程序，当我启动应用程序时，出现以下错误。我的MongoDB的版本是2.6.1无法使用Grails 3.1.1连接到mongo数据库

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongo': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: source can not be null 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    ... 44 common frames omitted 
Caused by: java.lang.IllegalArgumentException: source can not be null 
    at com.mongodb.assertions.Assertions.notNull(Assertions.java:37) ~[mongodb-driver-core-3.2.1.jar:na] 
    at com.mongodb.MongoCredential.<init>(MongoCredential.java:233) ~[mongodb-driver-core-3.2.1.jar:na] 
    at com.mongodb.MongoCredential.createCredential(MongoCredential.java:106) ~[mongodb-driver-core-3.2.1.jar:na] 
    at org.grails.datastore.gorm.mongo.bean.factory.MongoClientFactoryBean.afterPropertiesSet(MongoClientFactoryBean.java:145) ~[grails-datastore-gorm-mongodb-5.0.1.RELEASE.jar:na] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]

我的DataSource配置如下：

grails { 
      mongodb { 
       host = "localhost" 
       port = 27017 
       username = "admin" 
       password = "password" 
       databaseName = "sta" 
      } 
     }

来源

2016-03-07 allthenutsandbolts

检查official guide：

如果要配置的Grails如何连接到MongoDB的，那么你可以做所以在grails-app/conf/application.yml中使用以下设置：
grails: 
    mongodb: 
     host: "localhost" 
     port: 27017 
     username: "blah" 
     password: "blah" 
     databaseName: "foo" 

检查下一章：2.3高级配置。

来源

2016-03-07 21:22:47

你可以做到这一点无论是在阳明文件或application.groovy。我更喜欢.groovy文件。 – allthenutsandbolts