異常而通過連接數據春到MongoDB的

我對SpringData MongoDB的一些測試程序的工作，我做了同樣的，作爲其http://static.springsource.org/spring-data/data-document/docs/1.0.0.M2/reference/html/#mongo.core提到的擊打其表現異常異常而通過連接數據春到MongoDB的

package com.springMongo.core; 

import org.apache.commons.logging.Log; 
import org.apache.commons.logging.LogFactory; 
import org.springframework.context.ApplicationContext; 
import org.springframework.context.annotation.AnnotationConfigApplicationContext; 
import org.springframework.data.mongodb.core.MongoOperations; 
import org.springframework.data.mongodb.core.query.Query; 
import org.springframework.data.mongodb.core.query.Criteria; 

import com.springMongo.config.MongoConfig; 
import com.springMongo.person.Person; 



public class MongoApp { 

    private static final Log log = LogFactory.getLog(MongoApp.class); 

    public static void main(String[] args) { 
    ApplicationContext ctx = new AnnotationConfigApplicationContext(MongoConfig.class); 
    MongoOperations mongoOps = ctx.getBean(MongoOperations.class); 

    mongoOps.insert(new Person("1234", "Joe")); 

    log.info(mongoOps.findOne(new Query(Criteria.where("name").is("Joe")), Person.class)); 
    } 

} 



package com.springMongo.config; 

import org.springframework.context.annotation.Bean; 
import org.springframework.context.annotation.Configuration; 
import org.springframework.data.mongodb.core.MongoTemplate; 
import org.springframework.data.mongodb.config.AbstractMongoConfiguration; 

import com.mongodb.Mongo; 

/** 
* Spring MongoDB configuration file 
* 
*/ 
@Configuration 
public class MongoConfig extends AbstractMongoConfiguration { 

    @Override 
    public Mongo mongo() throws Exception { 
    return new Mongo("128.0.0.1",10001); 
    } 

    @Override 
    public MongoTemplate mongoTemplate() throws Exception { 
    return new MongoTemplate(mongo() , "try_db"); 
    } 

@Override 
public String getDatabaseName() { 
    // TODO Auto-generated method stub 
    return null; 
} 

} 






package com.springMongo.person; 

public class Person { 

     private String id; 

     private String name; 

     public Person(String id, String name) { 
     this.id = id; 
     this.name = name; 
     } 

     public String getId() { 
     return id; 
     } 

     public String getName() { 
     return name; 
     } 

     @Override 
     public String toString() { 
     return "Person [id=" + id + ", name=" + name + "]"; 
     } 

    }

但運行MongoApp.java後，我我得到以下異常

2012年1月3日下午十二時41分28秒org.springframework.context.support.AbstractApplicationContext prepareRefresh 信息：清爽org.spring[email protected]7c64dc11：啓動日期[星期二年1月3 12:41:28 IST 2012];上下文層次結構的根 2012年1月3日下午12時41分29秒org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons 信息：預先實例化org.s[email protected]2b275d39中的單例：定義bean [org.springframework.context.annotation.internalConfigurationAnnotationProcessor，org.springframework.context.annotation.internalAutowiredAnnotationProcessor，org.springframework.context.annotation.internalRequiredAnnotationProcessor，org.springframework.context.annotation.internalCommonAnnotationProcessor，mongoConfig，org.springframework.context。 annotation.ConfigurationClassPostProcessor $ ImportAwareBeanPostProcessor＃0，蒙戈，mongoTemplate，mongoDbFactory，mongoMappingContext，mappingMongoConverter];工廠層次結構的根 2012年1月3日下午12點41分29秒org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons 信息：破壞org.s[email protected]2b275d39中的單例：定義bean [ org.springframework.context.annotation.internalConfigurationAnnotationProcessor，org.springframework.context.annotation.internalAutowiredAnnotationProcessor，org.springframework.context.annotation.internalRequiredAnnotationProcessor，org.springframework.context.annotation.internalCommonAnnotationProcessor，mongoConfig，org.springframework.context.annotation。 ConfigurationClassPostProcessor $ ImportAwareBeanPostProcessor＃0，蒙戈，mongoTemplate，mongoDbFactory，mongoMappingContext，mappingMongoConverter]。工廠層次結構的根線程「main」中的異常org.springframework.beans.factory.BeanCreationException：在類com.springMongo.config.MongoConfig中定義名稱爲'mongoDbFactory'的bean時創建錯誤：bean的實例化失敗;嵌套異常是org.springframework.beans.factory.BeanDefinitionStoreException：工廠方法[public org.springframework.data.mongodb.MongoDbFactory org.springframework.data.mongodb.config.AbstractMongoConfiguration.mongoDbFactory（）throws java.lang.Exception]拋出異常;嵌套異常是java.lang.IllegalArgumentException：數據庫名稱不能爲空 at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod（ConstructorResolver.java:581） at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory .instantiateUsingFactoryMethod（AbstractAutowireCapableBeanFactory.java:1015）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance（AbstractAutowireCapableBeanFactory.java:911）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java ：485） at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:456） at org.springfr amework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:294） at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:225） at org.springframework.beans.factory .support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:291） at org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:193） at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons （DefaultListableBeanFactory.java:585） at org.springframework.context.support.AbstractApplicationContext。finishBeanFactoryInitialization（AbstractApplicationContext.java:913）在org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:464）在org.springframework.context.annotation.AnnotationConfigApplicationContext。在（AnnotationConfigApplicationContext.java:73） COM .springMongo.core.MongoApp.main（MongoApp.java:21）原因：org.springframework.beans.factory.BeanDefinitionStoreException：工廠方法[public org.springframework.data.mongodb.MongoDbFactory org.springframework.data.mongodb。 config.AbstractMongoConfiguration.mongoDbFactory（）拋出java.lang.Exception]拋出異常;嵌套異常是java.lang.IllegalArgumentException：數據庫名稱不能爲空 at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate（SimpleInstantiationStrategy.java:169） at org.springframework.beans.factory.support.ConstructorResolver .instantiateUsingFactoryMethod（ConstructorResolver.java:570） ...... 13多個造成的：java.lang.IllegalArgumentException異常：數據庫名稱不能爲空在org.springframework.util.Assert.hasText（Assert.java:162） at org.springframework.data.mongodb.core.SimpleMongoDbFactory。（SimpleMongoDbFactory.java:58） at org.springframework.data.mongodb.config.AbstractMongoConfiguration.mongoDbFactory（AbstractMongoConfiguration.java:54） at com.springMongo.config。 MongoConfi g $$ EnhancerByCGLIB $$ 2129bffe.CGLIB $ mongoDbFactory $ 3（） at com.springMongo.config.MongoConfig $$ EnhancerByCGLIB $$ 2129bffe $$ FastClassByCGLIB $$ 7ac56fd1.invoke（） at net.sf.cglib.proxy.MethodProxy .invokeSuper（MethodProxy.java:215） at org.springframework.context.annotation.ConfigurationClassEnhancer $ BeanMethodInterceptor.intercept（ConfigurationClassEnhancer.java:280） at com.springMongo.config.MongoConfig $$ EnhancerByCGLIB $$ 2129bffe.mongoDbFactory（）在sun.reflect.NativeMethodAccessorImpl.invoke0（本機方法）在sun.reflect.NativeMethodAccessorImpl.invoke（來源不明）在sun.reflect.DelegatingMethodAccessorImpl.invoke（來源不明）在java.lang.reflect.Method.invoke （未知來源） at org.springfr amework.beans.factory.support.SimpleInstantiationStrategy.instantiate（SimpleInstantiationStrategy.java:149） ...... 14多個

來源

2012-01-03 Darshan Patil

錯誤的IP地址？ 128.0.0.1應該是127.0.0.1
，你需要通過getDatabaseName()

來源

2012-01-03 07:29:00 Nat

它的工作由於指定數據庫名稱:) – 2012-01-03 08:11:13

異常而通過連接數據春到MongoDB的

回答

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