无法让Elasticsearch插件与Grails 3一起使用

Question

我曾尝试将Elasticsearch插件（“org.grails.plugins:Elasticsearch:1.4.1”）与grails 3.1.9项目连接在一起，但没有成功。

我还在github中上传了一个简单的应用程序来演示这个问题（https://github.com/jackiebai/testEs）

上面的示例测试应用程序只有1个名为Person的域类：

class Person {
    String name
    static searchable = true
    static constraints = {
    }
}

相应的服务类PersonService用于保存和索引人员数据：

import grails.transaction.Transactional
@Transactional
class PersonService {
    def addPerson(Person person){
        person.save()
        person.index()
    }
    def addPerson(String name) {
        Person p = new Person(name:name)
        addPerson(p)
    }
}

我还在引导程序中添加了几行代码。groovy，以便在应用程序启动时将一些数据插入默认的hibernate db：

class BootStrap {
    def personService
    def init = { servletContext ->
        personService.addPerson("Person One")
        personService.addPerson("John Smith")
    }
    def destroy = {
    }
}

应用程序。开发环境的yml变量设置如下所示：环境：开发：数据源：dbCreate：create drop url：jdbc：h2：mem：devDb；MVCC=真；LOCK\u TIMEOUT=10000；DB\u CLOSE\u ON\u EXIT=假弹性搜索：客户端：模式：节点传输。sniff:true bulkIndexOnStartup:true datastoreImpl:hibernateDatastore

根据插件用户指南（http://noamt.github.io/elasticsearch-grails-plugin/docs/index.html），build.gradle中包含了其他依赖项和bootRun代码块

dependencies {
    ...
    compile 'org.grails.plugins:elasticsearch:1.4.1'
    compile 'org.elasticsearch:elasticsearch:5.4.1'
    ...
}
bootRun{
    jvmArgs = ['-Des.path.home=/Users/myname/elasticsearch-5.4.1']
}

不幸的是，应用程序未能在我的osx 10.11.6，java 1.8.0_91环境下运行，错误如下：

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'elasticSearchClient': FactoryBean threw exception on object creation; nested exception is java.lang.NoClassDefFoundError: org/elasticsearch/mapper/attachments/MapperAttachmentsPlugin
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1590)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:317)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
    ... 34 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/elasticsearch/mapper/attachments/MapperAttachmentsPlugin
    at grails.plugins.elasticsearch.ClientNodeFactoryBean.getObject(ClientNodeFactoryBean.groovy:207)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168)
    ... 39 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.elasticsearch.mapper.attachments.MapperAttachmentsPlugin
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 41 common frames omitted

Answer 1

我相信版本1.4.1已经损坏。您可以尝试2.4.0。RC1与Grails 3.3，但您需要添加依赖到mapper-attachments并为Spring Boot指定elasticsearch.version：

ext['elasticsearch.version'] = '5.4.1'

dependencies {
    compile 'org.grails.plugins:elasticsearch:2.4.0.RC1'
    runtime 'org.elasticsearch.plugin:mapper-attachments:2.4.6'
}

参见第198期

Answer 2

根据留档你应该用v1.2.0

https://github.com/noamt/elasticsearch-grails-plugin