Question

我正在迁移我的应用程序以使用SDN 4.1.0.RC1，但在尝试启动应用程序后遇到了一些问题。我已经进行了必要的配置更改，以正确使用HTTPDriver到我的远程服务器（localhost：7474），并且在启动应用程序时，我在尝试加载弹簧上下文时，我的一个存储库出现以下错误。

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Invocation of init method failed; nested exception is java.lang.AbstractMethodError: org.springframework.data.neo4j.repository.query.GraphQueryLookupStrategy.resolveQuery(Ljava/lang/reflect/Method;Lorg/springframework/data/repository/core/RepositoryMetadata;Lorg/springframework/data/repository/core/NamedQueries;)Lorg/springframework/data/repository/query/RepositoryQuery;
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1192)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1116)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545)
    ... 32 common frames omitted
Caused by: java.lang.AbstractMethodError: org.springframework.data.neo4j.repository.query.GraphQueryLookupStrategy.resolveQuery(Ljava/lang/reflect/Method;Lorg/springframework/data/repository/core/RepositoryMetadata;Lorg/springframework/data/repository/core/NamedQueries;)Lorg/springframework/data/repository/query/RepositoryQuery;
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:416)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:206)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:251)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:237)
    at org.springframework.data.neo4j.repository.support.GraphRepositoryFactoryBean.afterPropertiesSet(GraphRepositoryFactoryBean.java:43)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
    ... 42 common frames omitted

这是似乎在哭泣的vanilia存储库

@Repository
public interface UserRepository extends GraphRepository<User> {

  @Query("MATCH (u:User) where u.authId = {authId} return u limit 1")
  User findOneByAuthId(@Param("authId") Long authId);

}

修改

看起来它可能是弹簧数据版本和弹簧数据neo4j之间的脱节。

有问题的GraphQueryLookupStrategy ......

/*
 * Copyright (c)  [2011-2016] "Pivotal Software, Inc." / "Neo Technology" / "Graph Aware Ltd."
 *
 * This product is licensed to you under the Apache License, Version 2.0 (the "License").
 * You may not use this product except in compliance with the License.
 *
 * This product may include a number of subcomponents with
 * separate copyright notices and license terms. Your use of the source
 * code for these subcomponents is subject to the terms and
 * conditions of the subcomponent's license, as noted in the LICENSE file.
 *
 */

package org.springframework.data.neo4j.repository.query;

import org.neo4j.ogm.session.Session;
import org.springframework.data.projection.ProjectionFactory;
import org.springframework.data.repository.core.NamedQueries;
import org.springframework.data.repository.core.RepositoryMetadata;
import org.springframework.data.repository.query.QueryLookupStrategy;
import org.springframework.data.repository.query.RepositoryQuery;

import java.lang.reflect.Method;

/**
 * @author Mark Angrish
 * @author Luanne Misquitta
 * @author Oliver Gierke
 */
public class GraphQueryLookupStrategy implements QueryLookupStrategy {

    private final Session session;

    public GraphQueryLookupStrategy(Session session) {
        this.session = session;
    }

    /* 
     * (non-Javadoc)
     * @see org.springframework.data.repository.query.QueryLookupStrategy#resolveQuery(java.lang.reflect.Method, org.springframework.data.repository.core.RepositoryMetadata, org.springframework.data.projection.ProjectionFactory, org.springframework.data.repository.core.NamedQueries)
     */
    @Override
    public RepositoryQuery resolveQuery(Method method, RepositoryMetadata metadata, ProjectionFactory factory,
        NamedQueries namedQueries) {
        return new GraphQueryMethod(method, metadata, factory, session).createQuery();
    }
}

看来我的QueryLookupStrategy期望实现一个方法RepositoryQuery resolveQuery(Method method, RepositoryMetadata metadata, NamedQueries namedQueries);，但实际上并非如此。我认为现在这是一个依赖性问题，并将进一步调查我需要符合SDN的Spring Data版本

/*
 * Copyright 2008-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.data.repository.query;

import java.lang.reflect.Method;
import java.util.Locale;

import org.springframework.data.repository.core.NamedQueries;
import org.springframework.data.repository.core.RepositoryMetadata;
import org.springframework.util.StringUtils;

/**
 * Strategy interface for which way to lookup {@link RepositoryQuery}s.
 * 
 * @author Oliver Gierke
 */
public interface QueryLookupStrategy {

    public static enum Key {

        CREATE, USE_DECLARED_QUERY, CREATE_IF_NOT_FOUND;

        /**
         * Returns a strategy key from the given XML value.
         * 
         * @param xml
         * @return a strategy key from the given XML value
         */
        public static Key create(String xml) {

            if (!StringUtils.hasText(xml)) {
                return null;
            }

            return valueOf(xml.toUpperCase(Locale.US).replace("-", "_"));
        }
    }

    /**
     * Resolves a {@link RepositoryQuery} from the given {@link QueryMethod} that can be executed afterwards.
     * 
     * @param method
     * @param metadata
     * @param namedQueries
     * @return
     */
    RepositoryQuery resolveQuery(Method method, RepositoryMetadata metadata, NamedQueries namedQueries);
}

Answer 1

Okay, so if you run into this issue there is a pretty straight forward way to resolve it. Please see the documentation at http://projects.spring.io/spring-data/ . This exception was caused by version conflicts with the spring data commons module. The interface that neo4j implements in version 4.1.0.RC1 has changed and thus this exception is thrown.

To Resolve use the Spring Data release train BOM and set it to release Hopper-RC1 . Since I use gradle the instructions are below but you can also find them at the link above.

Relevant build script simplified...

buildscript {
  dependencies {
    classpath "io.spring.gradle:dependency-management-plugin:0.4.0.RELEASE"
  }
}

apply plugin: "io.spring.dependency-management"

dependencyManagement {
  imports {
    mavenBom 'org.springframework.data:spring-data-releasetrain:Hopper-RC1'
  }
}

dependencies {
    compile 'org.springframework.data:spring-data-neo4j:4.1.0.RC1'
}repositories {
    maven {
        url 'https://repo.spring.io/libs-milestone'
    }
}

Cheers,

Steve

Answer 2

扩展@ Holycowzer对Maven用户的回答。将以下行添加到构建POM.xml中。请注意，这将位于主<!DOCTYPE html> <head> </head> <body> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> <script src="https://cdn.firebase.com/js/client/2.4.2/firebase.js"></script> <script type="text/javascript"> $(function () { var myFirebaseRef = new Firebase("https://<firebasetag>.firebaseio.com/coordinates"); var onComplete = function(error) { if (error) { console.log('Synchronization failed: ' + error); } else { console.log('Synchronization succeeded'); } }; $("#upload").bind("click", function () { var regex = /^([a-zA-Z0-9\s_\\.\-:])+(.csv|.txt)$/; if (regex.test($("#fileUpload").val().toLowerCase())) { if (typeof (FileReader) != "undefined") { var reader = new FileReader(); reader.onload = function (e) { var rows = e.target.result.split("\n"); for (var i = 0; i < rows.length; i++) { var cells = rows[i].split(","); myFirebaseRef.set({ [cells[0]]: { zipcodetype: cells[1], city: cells[2], state: cells[3], locationtype: cells[4], latitude: cells[5], longitude: cells[6], locationttext: cells[7] } }, onComplete); } } reader.readAsText($("#fileUpload")[0].files[0]); } else { alert("This browser does not support HTML5."); } } else { alert("Please upload a valid CSV file."); } }); }); </script> <input type="file" id="fileUpload" /> <input type="button" id="upload" value="Upload" /> </div> </body> <html>标记集之外。

<dependencies />

我注意到在执行此操作时出现了一些导入，只需将它们显式添加为POM中的依赖项，一切都应按预期工作。

从SDN 4.0迁移到SDN 4.1.RC1时的GraphQueryLookupStrategy.resolveQuery异常

2 个答案: