使用Neo4J自动布线弹簧REST Web服务

Question

我正在尝试开发一个简单的REST WS，它连接到在本机上运行的嵌入式Neo4J数据库。首先，我得到了一个简单的GET操作，当服务被调用并且正常工作时，它返回一个简单的字符串。现在我试图让它真正做到这一点，所以我搜索了一些关于如何将Spring与Neo4J集成的教程。事实是，我发现这比我期待的要困难得多，主要是因为有很多教程，它们都看起来不一样，所以有100种不同的方式来做到这一点，我试图适应我的解。我不知道我的注释和我的XML配置文件。任何帮助是一个梦寐以求的。愿军队与我同在。 :)

UPDATE_1：这是现在

<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:context="http://www.springframework.org/schema/context" 
xmlns:jpa="http://www.springframework.org/schema/data/jpa" 
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"> 
<mvc:annotation-driven /> 
<context:component-scan base-package="com.ruitex23.myStore" /> 
<jpa:repositories base-package="com.ruitex23.myStore.repositories" /> 
<bean name="soapOperationRepository" class="com.ruitex23.myStore.services.SoapOperationService" /> 
<context:annotation-config /> 
</beans> 

的MyStore的servlet控制器

package com.ruitex23.myStore.controllers; 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.web.bind.annotation.PathVariable; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 
import org.springframework.web.bind.annotation.RestController; 

import com.ruitex23.myStore.domains.SoapOperation; 
import com.ruitex23.myStore.services.SoapOperationService; 

@RestController 
public class SpringRestController { 

@Autowired SoapOperationService operationService; 

//the dummy method 
@RequestMapping(value = "/hello/{name}", method = RequestMethod.GET) 
public String hello(@PathVariable String name) { 
    String result = "Hallo " + name; 
    return result; 
} 

//the real method 
@RequestMapping(value = "/soapOperation/{version}", method = RequestMethod.GET) 
public SoapOperation getSoapOperationByVersion(@PathVariable("version") Integer version) { 
    return operationService.searchBySoapOperationVersion(String.valueOf(version)); 
} 
} 

资源库

package com.ruitex23.myStore.repositories; 
/** 
* 
*/ 

import org.springframework.data.neo4j.repository.GraphRepository; 
import org.springframework.data.repository.query.Param; 

import com.ruitex23.myStore.domains.SoapOperation; 


/** 
* @author ruitex23 
* 
*/ 
public interface SoapOperationRepository extends GraphRepository<SoapOperation> { 

SoapOperation findBySoapOperationVersion(@Param("soapOperationVersion") String soapOperationVersion); 

} 

的服务

package com.ruitex23.myStore.services; 

/** 
* 
*/ 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Service; 

import com.ruitex23.myStore.domains.SoapOperation; 
import com.ruitex23.myStore.repositories.SoapOperationRepository; 

/** 
* @author ruitex23 
* 
*/ 
@Service 
public class SoapOperationService { 


@Autowired SoapOperationRepository soapOperationRepository; 

public SoapOperation searchBySoapOperationVersion(String operationVersion) { 
    return soapOperationRepository.findBySoapOperationVersion(operationVersion); 
} 

} 

的MyStore的Servlet

​​

的web.xml

<!DOCTYPE web-app PUBLIC 
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 
"http://java.sun.com/dtd/web-app_2_3.dtd" > 

<web-app> 
<display-name>myStore</display-name> 
<servlet> 
    <servlet-name>mystore</servlet-name> 
    <servlet-class> 
     org.springframework.web.servlet.DispatcherServlet 
    </servlet-class> 
    <load-on-startup>1</load-on-startup> 
</servlet> 

<servlet-mapping> 
    <servlet-name>mystore</servlet-name> 
    <url-pattern>/</url-pattern> 
</servlet-mapping> 
</web-app> 

而现在有关自动装配Autowired对象错误。

12:05:58.649 [main] WARN o.s.w.c.s.XmlWebApplicationContext - Exception  encountered during context initialization - cancelling refresh attempt  org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springRestController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ruitex23.myStore.services.SoapOperationService com.ruitex23.myStore.controllers.SpringRestController.operationService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'soapOperationService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.ruitex23.myStore.repositories.SoapOperationRepository ruitex23.myStore.services.SoapOperationService.soapOperationRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ruitex23.myStore.repositories.SoapOperationRepository] found for dependency: 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.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) ~[spring-beans-4.2.1.RELEASE.jar:4.2.1.RELEASE] 

错误仍在继续，但我认为这是重要的部分。如果你需要查看日志错误的其他信息，请告诉我。

在此先感谢

Answer 1

您缺少XML配置文件中存储库的配置。事实上，据报道在Creating repository instances/XML Configuration在春季数据的Neo4j - 参考文献：

Each Spring Data module includes a repositories element that allows you to simply define a base package that Spring scans for you

现在，你需要添加添加到您的XML配置文件是什么下面的代码片段：

<jpa:repositories base-package="com.ruitex23.myStore.repositories" /> 

你还可以：

• 添加以下架构定义在<beans...>标签：

  xmlns:jpa="http://www.springframework.org/schema/data/jpa"

• 添加以下架构位置您xsi:schemaLocation：

  http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd