配置Spring数据和嵌入neo4j时出错

Question

我正在使用Spring Data和Neo4j嵌入式构建POC，我已经按照Spring Data文档的配置教程进行了操作，但是当我尝试运行项目时，我得到一个＆＃34;错误创建bean名称为＆＃39; graphDatabaseService＆＃39;在ServletContext资源中定义＆＃34;。

我在applicationContext.xml和一些不同版本的Spring Data和Neo4j依赖项上尝试了一些不同的配置，但没有成功，只是不同的错误。有什么问题？

这是我的applicationContext.xml，pom.xml和stacktrace：

的applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
    xmlns:util="http://www.springframework.org/schema/util" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/data/neo4j 
        http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util-4.0.xsd
        http://www.springframework.org/schema/tx 
        http://www.springframework.org/schema/tx/spring-tx.xsd">

    <context:annotation-config />

    <bean id="graphDatabaseService" class="org.neo4j.kernel.EmbeddedGraphDatabase"
        destroy-method="shutdown">
        <constructor-arg index="0" value="data/graph.db" />
        <constructor-arg index="1">
            <map>
                <entry key="enable_remote_shell" value="true" />
            </map>
        </constructor-arg>
    </bean>

    <bean id="serverWrapper" class="org.neo4j.server.WrappingNeoServerBootstrapper"
        init-method="start" destroy-method="stop">
        <constructor-arg ref="graphDatabaseService" />
    </bean>



    <context:component-scan base-package="br.com.teste" />

</beans>

的pom.xml

  <properties>
    <spring.version>4.0.2.RELEASE</spring.version>
  </properties>

  <dependencies>

  <dependency>
      <groupId>javax.persistence</groupId>
      <artifactId>persistence-api</artifactId>
      <version>1.0</version>
      <optional>true</optional>
    </dependency>   
    <dependency>
        <groupId>org.testng</groupId>
        <artifactId>testng</artifactId>
        <version>6.1.1</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>cglib</groupId>
        <artifactId>cglib</artifactId>
        <version>2.2.2</version>
    </dependency>

    <!-- Spring 3 dependencies -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>


    <!-- Spring Data Neo4j -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-neo4j</artifactId>
        <version>3.0.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.neo4j</groupId>
        <artifactId>neo4j</artifactId>
        <version>2.1.0-M01</version>
    </dependency>

    <dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-neo4j-aspects</artifactId>
    <version>3.0.1.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjrt</artifactId>
        <version>1.7.4</version>
    </dependency>
    <dependency>
        <groupId>org.neo4j.app</groupId>
        <artifactId>neo4j-server</artifactId>
        <classifier>static-web</classifier>
        <version>2.1.0-M01</version>
    </dependency>



    <!-- Apache Commons Lang -->
    <dependency>
       <groupId>commons-lang</groupId>
       <artifactId>commons-lang</artifactId>
       <version>2.4</version>
    </dependency>


    <!-- JSON Resolver -->
    <dependency>
        <groupId> org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>1.9.12</version>
    </dependency>

    <!-- JSTL -->
    <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>jstl</artifactId>
       <version>1.2</version>
    </dependency>
    <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>servlet-api</artifactId>
       <version>2.5</version>
    </dependency>

    <dependency>
        <groupId>javax.validation</groupId>
        <artifactId>validation-api</artifactId>
        <version>1.0.0.GA</version>
    </dependency>   
  </dependencies>

  <repositories>
      <repository>
            <id>neo4j-release-repository</id>
            <name>Neo4j Maven 2 release repository</name>
            <url>http://m2.neo4j.org/content/repositories/releases/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
     </repository>
     <repository>
        <id>spring-maven-milestone</id>
        <name>Springframework Maven Repository</name>
        <url>http://maven.springframework.org/milestone</url>
    </repository>
 </repositories>

 <build>
    <finalName>teste-spring</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>


        <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>aspectj-maven-plugin</artifactId>
        <version>1.2</version>
        <dependencies>
            <!-- NB: You must use Maven 2.0.9 or above or these are ignored (see MNG-2972) -->
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjrt</artifactId>
                <version>1.7.4</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjtools</artifactId>
                <version>1.7.4</version>
            </dependency>
        </dependencies>
        <executions>
            <execution>
                <goals>
                    <goal>compile</goal>
                    <goal>test-compile</goal>
                </goals>
            </execution>
        </executions>
        <configuration>
            <outxml>true</outxml>
            <aspectLibraries>
                <aspectLibrary>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-aspects</artifactId>
                </aspectLibrary>
                <aspectLibrary>
                    <groupId>org.springframework.data</groupId>
                    <artifactId>spring-data-neo4j-aspects</artifactId>
                </aspectLibrary>
            </aspectLibraries>
            <source>1.7</source>
            <target>1.7</target>
        </configuration>
    </plugin>
  </plugins>    
  </build>
</project>

栈跟踪

Mar 26, 2014 11:39:29 PM org.apache.catalina.core.StandardContext listenerStart
Grave: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'graphDatabaseService' defined in ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [org.neo4j.kernel.configuration.Config]: Could not convert constructor argument value of type [java.lang.String] to required type [org.neo4j.kernel.configuration.Config]: Failed to convert value of type 'java.lang.String' to required type 'org.neo4j.kernel.configuration.Config'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [java.lang.String] to required type [org.neo4j.kernel.configuration.Config]: no matching editors or conversion strategy found
Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'graphDatabaseService' defined in ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]: Unsatisfied dependency expressed through constructor argument with index 2 of type [java.lang.Iterable]: Ambiguous constructor argument types - did you specify the correct bean references as constructor arguments?
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:716)
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1114)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1017)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
Related cause:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'graphDatabaseService' defined in ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]: Unsatisfied dependency expressed through constructor argument with index 2 of type [java.lang.Iterable]: Ambiguous constructor argument types - did you specify the correct bean references as constructor arguments?
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:727)
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1114)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1017)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)

Answer 1

由于EmbeddedGraphDatabase类已被弃用（将在未来的版本中隐藏），因此已经避免使用它是一种很好的做法。构建GraphDatabaseSerice的最佳方法是使用GraphDatabaseFactory，在您的情况下使用相关的GraphDatabaseBuilder。如果您在java中配置Spring bean，它就是这样的：

@Configuration
@ImportResource("applicationContext.xml")
class SpringConfiguration extends Neo4jConfiguration {
    @Bean(destroyMethod = "shutdown")
    public GraphDatabaseService graphDatabaseService() {
        return new GraphDatabaseFactory().newEmbeddedDatabaseBuilder("db")
            .setConfig("enable_remote_shell", "true").newGraphDatabase();
    }
}

我意识到我使用的setConfig方法也已弃用，但我在GraphDatabaseSettings课程中看不到等效内容。

如果您想使用此方法，则必须在web.xml中使用AnnotationConfigWebApplicationContext。

如果您希望继续使用XML配置，那么＆＃39;便利豆：

<bean id="graphDatabaseService" class="org.springframework.data.neo4j.support.GraphDatabaseServiceFactoryBean"
        destroy-method="shutdown" scope="singleton">
    <constructor-arg value="db"/>
    <constructor-arg>
        <map>
            <entry key="enable_remote_shell" value="true"/>
        </map>
    </constructor-arg>
</bean>