Elasticsearch与springboot的整合以及遇到的问题
1.在pom.xml文件中加入依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
2.修改application.properties
#spring.data.elasticsearch.cluster-name=my-application（这句不要写，写了这句就会报错，4错误二所示）
# Elasticsearch服务地址
spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.data.elasticsearch.repositories.enabled=true
# 设置连接超时时间
spring.data.elasticsearch.properties.transport.tcp.connect_timeout=120s
3.错误一
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).
解决办法:在ThymeleafInActionApplication class上方加@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})，如下图所示：
4.错误二：
org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: [{#transport#-1}{RDlwiaOTQJSvplguzUoY7A}{localhost}{127.0.0.1:9300}]
at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:347) ~[elasticsearch-5.6.9.jar:5.6.9]
at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:245) ~[elasticsearch-5.6.9.jar:5.6.9]
at org.elasticsearch.client.transport.TransportProxyClient.execute(TransportProxyClient.java:59) ~[elasticsearch-5.6.9.jar:5.6.9]
at org.elasticsearch.client.transport.TransportClient.doExecute(TransportClient.java:366) ~[elasticsearch-5.6.9.jar:5.6.9]
at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:408) ~[elasticsearch-5.6.9.jar:5.6.9]
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:80) ~[elasticsearch-5.6.9.jar:5.6.9]
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:54) ~[elasticsearch-5.6.9.jar:5.6.9]
at org.springframework.data.elasticsearch.core.ElasticsearchTemplate.doScroll(ElasticsearchTemplate.java:781) ~[spring-data-elasticsearch-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at org.springframework.data.elasticsearch.core.ElasticsearchTemplate.startScroll(ElasticsearchTemplate.java:795) ~[spring-data-elasticsearch-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at org.springframework.data.elasticsearch.core.ElasticsearchTemplate.delete(ElasticsearchTemplate.java:692) ~[spring-data-elasticsearch-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at org.springframework.data.elasticsearch.repository.support.AbstractElasticsearchRepository.deleteAll(AbstractElasticsearchRepository.java:257) ~[spring-data-elasticsearch-3.0.7.RELEASE.jar:3.0.7.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_112]
原因：application.properties中写了spring.data.elasticsearch.cluster-name=my-application，删掉这句即可
