spring boot elasticsearch集成過程錯誤記錄

引入elasticsearch包

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
    </dependency>

 

application.yml中的elasticsearch配置

spring:
  data:
    elasticsearch:
      cluster-nodes: 127.0.0.1:9300 #配置es節點信息，逗號分隔
      cluster-name: elasticsearch #默認即爲 elasticsearch
      properties:
        transport:
          tcp:
            connect_timeout: 60s
        path:
          logs: ./elasticsearch/log #elasticsearch日誌存儲目錄
          data: ./elasticsearch/data #elasticsearch數據存儲目錄

 

 

CURD操做方式：

public interface TestModelService2  extends ElasticsearchRepository<TestModel, String>

啓動過程出現錯誤：

Caused by: java.lang.IllegalArgumentException: Failed to  create query for method public abstract java.lang.Object  org.springframework.data.elasticsearch.repository.ElasticsearchRepository.index(java.lang.Object)! No property  index found for type TestModel!

 

Caused by:  org.springframework.data.mapping.PropertyReferenceException: No property index found for type TestModel!

 

集成前提是：系統中已有對數據庫的CURD操做，而後想加入elasticsearch搜索功能，操做的實體既是entity對象，也是document對象

 

錯誤的大概意思是說：org.springframework.data.elasticsearch.repository.ElasticsearchRepository 類中的index方法，系統按照JPA操做數據庫的方式，認爲index方法是經過index字段查找數據，然而，實體中沒有index字段，因此就出錯了

錯誤的緣由是： @EntityScan("com.bc")和 @ComponentScan ( "com.bc" )註解掃描到了該類，致使系統覺得是數據庫操做類，而後按數據庫的實現類進行注入

解決辦法： @EnableElasticsearchRepositories ( basePackages = "com.search" )區分不一樣包掃描，將crud操做類放到該包的子包下

 

其餘錯誤：

Caused by:  org.springframework.beans.BeanInstantiationException:  Failed to instantiate  [org.elasticsearch.client.transport.TransportClient]:  Factory method 'elasticsearchClient' threw exception;  nested exception is java.lang.IllegalStateException:  availableProcessors is already set to [8], rejecting [8]

 

加入啓動參數，代碼中：

static{

    System.setProperty("es.set.netty.runtime.available.processors", "false");

}

 

或是在jvm啓動參數：

-Des.set.netty.runtime.available.processors=false