找不到Redis HashOperations依赖项？

Question

我正在关注如何使用Redis映射的Spring教程。 http://docs.spring.io/spring-data/redis/docs/1.8.4.RELEASE/reference/html/#redis.hashmappers.root

这里是我的类：

import java.util.HashMap; 
import java.util.Map; 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.data.redis.core.HashOperations; 

import com.commercehub.jackson.datatype.mongo.MongoModule; 
import com.fasterxml.jackson.core.JsonProcessingException; 
import com.fasterxml.jackson.databind.ObjectMapper; 

import model.Event; 

public class HashMapping { 

@Autowired 
private HashOperations<String, byte[], byte[]> hashOperations; 

private ObjectMapper objectMapper = new ObjectMapper(); 

    public void writeHash(String key, Event event) throws JsonProcessingException { 
    objectMapper.registerModule(new MongoModule()); 
    String json = objectMapper.writeValueAsString(event); 

    Map<byte[], byte[]> mappedHash = new HashMap<byte[], byte[]>(); 
    mappedHash.put(key.getBytes(), json.getBytes()); 

    hashOperations.putAll(key, mappedHash); 
    } 
} 

当我在这里注册此类豆和启动服务器是我的错误信息：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'hashMapping': Unsatisfied dependency expressed through field 'hashOperations': No qualifying bean of type [org.springframework.data.redis.core.HashOperations] found for dependency [org.springframework.data.redis.core.HashOperations<java.lang.String, byte[], byte[]>]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.data.redis.core.HashOperations] found for dependency [org.springframework.data.redis.core.HashOperations<java.lang.String, byte[], byte[]>]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:569) 
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:349) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:776) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) 
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444) 
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326) 
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) 
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4853) 
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314) 
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) 
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) 
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) 
at java.util.concurrent.FutureTask.run(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 

我该如何解决这个问题？我完全喜欢春季教程所说的

Answer 1

我已经解决了这个问题。 HashOperations是作为RedisTemplate一部分的许多操作视图之一。要使用其中一个视图，您必须将视图声明为依赖项，然后注入RedisTemplate。

这是我如何做的：

import java.util.Map; 

import javax.annotation.Resource; 

import org.springframework.data.redis.core.HashOperations; 
import org.springframework.data.redis.hash.HashMapper; 
import org.springframework.data.redis.hash.ObjectHashMapper; 

import edu.fau.isense.po.doormonitor.model.Person; 

public class HashMapping { 

@Resource(name = "redisTemplate") 
private HashOperations<String, byte[], byte[]> hashOperations; 

private HashMapper<Object, byte[], byte[]> mapper = new ObjectHashMapper(); 

public void writeHash(String key, Person person) { 

    Map<byte[], byte[]> mappedHash = mapper.toHash(person); 
    hashOperations.putAll(key, mappedHash); 
} 

public Person loadHash(String key) { 

    Map<byte[], byte[]> loadedHash = hashOperations.entries(key); 
    return (Person) mapper.fromHash(loadedHash); 
} 
}