spring-data-elasticsearch

问题 I am in reference to Spring Data Elasticsearch's org.springframework.data.elasticsearch.repository.ElasticsearchRepository org.springframework.data.elasticsearch.core.ElasticsearchTemplate It seems they are two different APIs that achieve the same goal but I am not sure what the differences are between those two types and more importantly when to use which. Can someone please provide advice and guidance? 回答1: ElasticsearchRepository is intended to be used as a repository for your domain

问题 I am using the ReactiveElasticsearchClient from spring-data-elasticsearch 3.2.3 with spring-boot 2.2.0. When upgrading to spring-boot 2.2.2 i have got org.springframework.core.io.buffer.DataBufferLimitException: Exceeded limit on max bytes to buffer : 262144. It's indicated to fixe that to use spring.codec.max-in-memory-size but i still got the same exception. Bellow the whole exception: org.springframework.core.io.buffer.DataBufferLimitException: Exceeded limit on max bytes to buffer :

问题 I am using the ReactiveElasticsearchClient from spring-data-elasticsearch 3.2.3 with spring-boot 2.2.0. When upgrading to spring-boot 2.2.2 i have got org.springframework.core.io.buffer.DataBufferLimitException: Exceeded limit on max bytes to buffer : 262144. It's indicated to fixe that to use spring.codec.max-in-memory-size but i still got the same exception. Bellow the whole exception: org.springframework.core.io.buffer.DataBufferLimitException: Exceeded limit on max bytes to buffer :

问题 I am trying to run the spring boot parent project which uses child project, which in turn uses project(ES project) which has elasticsearch dependencies and elasticsearch config bean for transport client. The child project uses Spring Data ES repositories, which are enabled by a respective annotation in a project. These are config annotations used in the child: @Configuration @ComponentScan("package") @EntityScan("package3") @EnableJpaRepositories("package2") // enables only es repos for

问题 Considering the mappings (messages are nested type inside channel) @Document(indexName = "index", type = "channel") @Data public class Channel { @Id @Field(type = FieldType.Text) private String id; @Field(type = FieldType.Date, format = DateFormat.date_hour_minute_second_millis) @JsonFormat(shape = JsonFormat.Shape.STRING) private LocalDateTime issuedTimestamp; @Field(type = FieldType.Text) private String clientUsername; @Field(type = FieldType.Nested, includeInParent = true) private List

问题 I am using the High Level REST Client for Elastic Search 6.2.2. Suppose that I have two documents in index "DOCUMENTS" with type "DOCUMENTS" that are { "_id": 1, "Name": "John", "FunFacts": { "FavColor": "Green", "Age": 32 } }, { "_id": 2, "Name": "Amy", "FunFacts": { "FavFood": "Pizza", "Age": 33 } } I want to find out all of the distinct fun facts and their distinct values, ultimately returning an end result of { "FavColor": ["Green"], "Age": [32, 33], "FavFood": ["Pizza"] } It is ok for

问题 I am trying to get indexname dynamically in @Document(indexName="Something",type="type") I have tried using below code: @Document(indexName="#{systemProperties['databaseName'] }", type = "dbtype") but at runtime when I am sending two request from UI to get the data from ES from different indexes,it is not working properly. what should I do to solve this issue? 回答1: A workaround is, to work with NativeSearchQuerries. There you can set the index to whatever you like: NativeSearchQuery query =

问题 What I need is very simple, but I am unable to find how to do it in Elasticsearch, possibly because of the complexity of what is required to be done. Input (two sample JSON documents) { "car" : 150, "bike" : 300 } { "car" : 100, "bike" : 200} What I want in return is that when I fire a search query it returns me the documents with an extra field inventory which is defined as the sum of number of cars and bikes. And in the sorted order. Sample Output: hits: [ { "car" : 150, "bike" : 300,

问题 I'm developing a system which is planning to use elasticsearch as an data repository. I'm trying to choose the best way to develop my application that can index and query data from elasticsearch. The system I have is built on top of Spring framework. Is it a good choice to use Spring-data-elasticsearch (https://github.com/spring-projects/spring-data-elasticsearch)? Or is it a good choice to use elasticsearch core libraries itself ? I need to handle nested data (inner object) but Spring-data

问题 I'm developing a system which is planning to use elasticsearch as an data repository. I'm trying to choose the best way to develop my application that can index and query data from elasticsearch. The system I have is built on top of Spring framework. Is it a good choice to use Spring-data-elasticsearch (https://github.com/spring-projects/spring-data-elasticsearch)? Or is it a good choice to use elasticsearch core libraries itself ? I need to handle nested data (inner object) but Spring-data