如何通过弹簧连接MongoDB中的数据库

Question

我真的需要一些帮助，我经历了整整一天的搜索，但仍然没有找到任何可行的方法。

注：我的数据库具有用户名和密码

而这两个是我与工作的依赖性。

<dependencies> 
     <dependency> 
      <groupId>org.springframework.data</groupId> 
      <artifactId>spring-data-mongodb</artifactId> 
      <version>1.7.2.RELEASE</version> 
     </dependency> 
     <dependency> 
      <groupId>org.mongodb</groupId> 
      <artifactId>mongo-java-driver</artifactId> 
      <version>2.11.0</version> 
     </dependency> 
</dependencies> 

这是我的XML配置文件：

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:mongo="http://www.springframework.org/schema/data/mongo" 
xsi:schemaLocation="http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo.xsd 
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 
<mongo:mongo-client host="address" port="27017 credentials="username:[email protected]" /> 

</beans> 

这是我的主类，加载这个XML：

import org.springframework.context.ApplicationContext; 
    import org.springframework.context.support.GenericXmlApplicationContext; 
    import org.springframework.data.mongodb.core.MongoOperations; 
    import org.springframework.data.mongodb.core.query.Criteria; 
    import org.springframework.data.mongodb.core.query.Query; 

    import model.user; 
    //import org.springframework.context.support.GenericXmlApplicationContext; 

public class App { 

    public static void main(String[] args) { 
     /* 
     ApplicationContext ctx = new AnnotationConfigApplicationContext(appConfig.class); 
     MongoOperations mongoOperation = (MongoOperations) ctx.getBean("mongoTemplate"); 
*/ 

     ApplicationContext ctx = new GenericXmlApplicationContext("config.xml"); 
     MongoOperations mongoOperation = (MongoOperations)ctx.getBean("mongoTemplate"); 

     user user = new user(); 

     // save 
     // mongoOperation.save(user); 

     // now user object got the created id. 
     System.out.println("1. user : " + user); 

     // query to search user 
     Query searchUserQuery = new Query(Criteria.where("age").is(26)); 
     mongoOperation.findOne(searchUserQuery, user.class); 
    } 

} 

这是错误消息我得到：

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". 
SLF4J: Defaulting to no-operation (NOP) logger implementation 
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. 
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongo': Initialization of bean failed; nested exception is java.lang.NoSuchMethodError: com.mongodb.MongoCredential.createCredential(Ljava/lang/String;Ljava/lang/String;[C)Lcom/mongodb/MongoCredential; 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:687) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) 
    at org.springframework.context.support.GenericXmlApplicationContext.<init>(GenericXmlApplicationContext.java:70) 
    at core.App.main(App.java:20) 
Caused by: java.lang.NoSuchMethodError: com.mongodb.MongoCredential.createCredential(Ljava/lang/String;Ljava/lang/String;[C)Lcom/mongodb/MongoCredential; 
    at org.springframework.data.mongodb.config.MongoCredentialPropertyEditor.setAsText(MongoCredentialPropertyEditor.java:108) 
    at org.springframework.beans.TypeConverterDelegate.doConvertTextValue(TypeConverterDelegate.java:430) 
    at org.springframework.beans.TypeConverterDelegate.doConvertValue(TypeConverterDelegate.java:403) 
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:181) 
    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:460) 
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:512) 
    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:506) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1503) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1462) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1198) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) 
    ... 10 more 

Answer 1

好吧，终于我能够连接t到数据库，我用MongoClient做了。这是代码片段：

MongoCredential credential = MongoCredential.createMongoCRCredential("username", "database", password); 
MongoClient mongoClient = new MongoClient(new ServerAddress("address", 27017), Arrays.asList(credential)); 

    // get handle to "mydb" 
    DB db = mongoClient.getDB("IODS"); 

    // get a list of the collections in this database and print them out 
    Set<String> collectionNames = db.getCollectionNames(); 
    for (final String s : collectionNames) { 
     System.out.println(s); 
    } 


    // get a collection object to work with 
    DBCollection coll = db.getCollection("try_vishal");