SpringBoot整合ES的三种方式（API、REST Client、Data-ES）
1. 整合案例一（使用Java API）
这种方式，官方已经明确表示在ES 7.0版本中将弃用TransportClient客户端，且在8.0版本中完全移除它，我在学习ES时，版本已经是6.4.0了。
版本搭配：SpringBoot 2.0.5，ES 5.5.0
1.1 依赖如下：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.glodongroupId>
<artifactId>elasticsearch_dataartifactId>
<version>1.0-SNAPSHOTversion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>1.5.6.RELEASEversion>
parent>
<properties>
<java.version>1.8java.version>
<elasticsearch.version>5.5.0elasticsearch.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.elasticsearch.clientgroupId>
<artifactId>transportartifactId>
<version>${elasticsearch.version}version>
dependency>
<dependency>
<groupId>org.apache.logging.log4jgroupId>
<artifactId>log4j-coreartifactId>
<version>2.7version>
dependency>
<dependency>
<groupId>org.apache.commonsgroupId>
<artifactId>commons-lang3artifactId>
<version>3.8version>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
plugin>
plugins>
build>
project>
1.2 配置文件
@Configuration public class MyConfig { @Bean public TransportClient client() throws UnknownHostException { // 指定集群名,默认为elasticsearch,如果改了集群名,这里一定要加 Settings settings = Settings.builder() .put("cluster.name", "elasticsearch") .build(); TransportClient client = new PreBuiltTransportClient(settings); /* ES的TCP端口为9300,而不是之前练习的HTTP端口9200 这里只配置了一个节点的地址然添加进去,也可以配置多个从节点添加进去再返回 */ InetSocketTransportAddress node = new InetSocketTransportAddress( InetAddress.getByName("localhost"), 9300 ); client.addTransportAddress(node); return client; } } 1.3 控制器
@RestController @RequestMapping("/es") public class BookController { @Autowired private TransportClient client; @RequestMapping(value = "/go") public String go() { return "go1"; } /** * 根据id查询 * * @param id book id */ @RequestMapping(value = "/book", method = RequestMethod.GET) public ResponseEntity<java.util.Map<String, Object>> get(@RequestParam("id") String id) { GetResponse result = client.prepareGet("book", "novel", id).get(); return new ResponseEntity<>(result.getSource(), HttpStatus.OK); } /** * 添加文档 * * @param id book id * @param name book name */ @RequestMapping(value = "/book", method = RequestMethod.POST) public ResponseEntity<String> add(@RequestParam("id") String id, @RequestParam("name") String name) { try { // 构造ES的文档，这里注意startObject()开始构造，结束构造一定要加上endObject() XContentBuilder content = XContentFactory.jsonBuilder().startObject(). field("id", id) .field("name", name) .endObject(); IndexResponse result = client.prepareIndex("book", "novel") .setSource(content).get(); return new ResponseEntity<>(result.getId(), HttpStatus.OK); } catch (IOException e) { e.printStackTrace(); } return null; } /** * 根据id删除book * * @param id book id */ @RequestMapping(value = "/book/{id}", method = RequestMethod.DELETE) public ResponseEntity<String> delete(@PathVariable(value = "id") String id) { DeleteResponse result = client.prepareDelete("book", "novel", id).get(); return new ResponseEntity<>(result.getResult().toString(), HttpStatus.OK); } /** * 更新文档，这里的Book可以不管他，这样做是为了解决PUT请求的问题，随便搞 */ @RequestMapping(value = "/book", method = RequestMethod.PUT) public ResponseEntity<String> update(@RequestBody Book book) { System.out.println(book); // 根据id查询 UpdateRequest updateRequest = new UpdateRequest("book", "novel", book.getId().toString()); try { XContentBuilder contentBuilder = XContentFactory.jsonBuilder().startObject(); if (StringUtils.isNotBlank(book.getName())) { contentBuilder.field("name", book.getName()); } contentBuilder.endObject(); updateRequest.doc(contentBuilder); } catch (IOException e) { e.printStackTrace(); } // 进行更新 UpdateResponse updateResponse = new UpdateResponse(); try { updateResponse = client.update(updateRequest).get(); } catch (InterruptedException | ExecutionException e) { e.printStackTrace(); } return new ResponseEntity<>(updateResponse.getResult().toString(), HttpStatus.OK); } } 具体项目案例见Jacksonary/elasticsearch_data中的es_java_api模块；
对于最新的ES 6.4.0版本搭配Transport整合流程大体相同，但有部分改变，比如配置TCP端口时InetSocketTransportAddress改成了TransportAddress，具体过程不再赘述，参见elasticsearch_data中的es_java_api2模块
【问题】
运行一天后出现问题：
2018-09-16 09:48:58.742 ERROR 15004 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is NoNodeAvailableException[None of the configured nodes are available: [{#transport#-1}{NJVJTWeGTV2SqhbOX1oFiQ}{localhost}{127.0.0.1:9300}]]] with root cause
org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: [{#transport#-1}{NJVJTWeGTV2SqhbOX1oFiQ}{localhost}{127.0.0.1:9300}]
at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:347) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:245) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.transport.TransportProxyClient.execute(TransportProxyClient.java:59) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.transport.TransportClient.doExecute(TransportClient.java:363) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:408) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:80) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:54) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.action.ActionRequestBuilder.get(ActionRequestBuilder.java:62) ~[elasticsearch-5.5.0.jar:5.5.0]
at com.glodon.controllers.BookController.get(BookController.java:28) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.__invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45009) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45012) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:40002) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.16.jar:8.5.16]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.16.jar:8.5.16]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
2018-09-16 09:49:27.782 ERROR 15004 --- [nio-8080-exec-6] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is NoNodeAvailableException[None of the configured nodes are available: [{#transport#-1}{NJVJTWeGTV2SqhbOX1oFiQ}{localhost}{127.0.0.1:9300}]]] with root cause
org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: [{#transport#-1}{NJVJTWeGTV2SqhbOX1oFiQ}{localhost}{127.0.0.1:9300}]
at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:347) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:245) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.transport.TransportProxyClient.execute(TransportProxyClient.java:59) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.transport.TransportClient.doExecute(TransportClient.java:363) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:408) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:80) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:54) ~[elasticsearch-5.5.0.jar:5.5.0]
at org.elasticsearch.action.ActionRequestBuilder.get(ActionRequestBuilder.java:62) ~[elasticsearch-5.5.0.jar:5.5.0]
at com.glodon.controllers.BookController.get(BookController.java:28) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.__invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45009) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45012) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:40002) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.16.jar:8.5.16]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.16.jar:8.5.16]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
随后的几次又出现这样的问题org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available，一番查找，解释莫非以下几种：
- TCP端口和HTTP搞混或者IP写错，误写成9200。反查本案例正确；
- 集群名改了之后，配置
Client这个Bean时没有在Settings中put进去。反查本案例正确；
重启SpringBoot项目没有报错，重启ES执行查询报错信息消失，解决方案不明，报错原因未知！
2. 整合案例二(使用REST Clinet)
上面的案例1是基于TCP和ES通信的(而且TransPort将来会被抛弃……)，官方也给出了基于HTTP的客户端REST Client(推荐使用)，官方给出来的REST Client有Java Low Level REST Client和Java Hight Level REST Client两个，前者兼容所有版本的ES，后者是基于前者开发出来的，只暴露了部分API，待完善。这个案例中使用Java Low Level REST Client，有如下的一些特点：
- 最小化依赖；
- 提供跨所有可用节点的负载平衡；
- 提供节点故障和特定响应代码时的故障转移；
- 提供失败重连的惩罚机制(是否对一个连接失败的节点尝试重连，取决于它连续失败的次数，尝试重连且失败的次数越多，客户端在再次尝试重连这个节点时等的时间就越长。说那么多，太复杂了，其实给一个场景就是：我找你玩儿，你不答应，我伤自尊了，下次去找你我隔了一个星期再去找你，你又不答应，我又伤自尊了，下次再找你的话，那我就隔两个星期，依次类推)；
- 持久连接；
- 跟踪请求和响应的日志记录；
- 可选的集群节点自动发现功能；
这里使用的ES版本为最新版的6.4.0，其实官方推这个REST Client，个人还是觉得是因为它是基于HTTP端口去通信的，便于操作，而且跟ES版本几乎没有关系。
2.1 引入依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>elasticsearch_dataartifactId>
<groupId>com.glodongroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>es_java_restartifactId>
<dependencies>
<dependency>
<groupId>org.elasticsearch.clientgroupId>
<artifactId>elasticsearch-rest-clientartifactId>
<version>6.4.0version>
dependency>
<dependency>
<groupId>org.jsongroupId>
<artifactId>jsonartifactId>
<version>20160810version>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-shade-pluginartifactId>
<version>3.1.0version>
<executions>
<execution>
<phase>packagephase>
<goals><goal>shadegoal>goals>
<configuration>
<relocations>
<relocation>
<pattern>org.apache.httppattern>
<shadedPattern>hidden.org.apache.httpshadedPattern>
relocation>
<relocation>
<pattern>org.apache.loggingpattern>
<shadedPattern>hidden.org.apache.loggingshadedPattern>
relocation>
<relocation>
<pattern>org.apache.commons.codecpattern>
<shadedPattern>hidden.org.apache.commons.codecshadedPattern>
relocation>
<relocation>
<pattern>org.apache.commons.loggingpattern>
<shadedPattern>hidden.org.apache.commons.loggingshadedPattern>
relocation>
relocations>
configuration>
execution>
executions>
plugin>
plugins>
build>
project>
2.2 配置文件
基本配置如下
@Configuration public class RestConfig { @Bean public RestClient getClient() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException { // 如果有多个从节点可以持续在内部new多个HttpHost，参数1是ip,参数2是HTTP端口，参数3是通信协议 RestClientBuilder clientBuilder = RestClient.builder(new HttpHost("localhost", 9200, "http")); // 添加其他配置，返回来的还是RestClientBuilder对象，这些配置都是可选的 // clientBuilder.setXX()... // 最后配置好的clientBuilder再build一下即可得到真正的Client return clientBuilder.build(); } } 2.2.1 RestClientBuilder中的其中配置
上述的基本配置过程省去了很多东西，可以根据自己需求适当添加以下的一些配置：
【1. 设置请求头】
// 设置请求头，每个请求都会带上这个请求头 Header[] defaultHeaders = {new BasicHeader("header", "value")}; clientBuilder.setDefaultHeaders(defaultHeaders); 【2. 设置超时时间】
// 设置超时时间，多次尝试同一请求时应该遵守的超时。默认值为30秒，与默认套接字超时相同。若自定义套接字超时，则应相应地调整最大重试超时 clientBuilder.setMaxRetryTimeoutMillis(60000); 【3. 设置节点失败监听器】
// 设置监听器，每次节点失败都可以监听到，可以作额外处理 clientBuilder.setFailureListener(new RestClient.FailureListener() { @Override public void onFailure(Node node) { super.onFailure(node); System.out.println(node.getName() + "==节点失败了"); } }); 【4. 设置节点选择器】
/* 配置节点选择器，客户端以循环方式将每个请求发送到每一个配置的节点上， 发送请求的节点，用于过滤客户端，将请求发送到这些客户端节点，默认向每个配置节点发送， 这个配置通常是用户在启用嗅探时向专用主节点发送请求（即只有专用的主节点应该被HTTP请求命中） */ clientBuilder.setNodeSelector(NodeSelector.SKIP_DEDICATED_MASTERS); 除了上面有简单需求外，还可以自定义节点选择器的需求：
// 进行详细的配置 clientBuilder.setNodeSelector(new NodeSelector() { // 设置分配感知节点选择器，允许选择本地机架中的节点（如果有），否则转到任何机架中的任何其他节点。 @Override public void select(Iterable<Node> nodes) { boolean foundOne = false; for (Node node: nodes) { String rackId = node.getAttributes().get("rack_id").get(0); if ("rack_one".equals(rackId)) { foundOne = true; break; } } if (foundOne) { Iterator<Node> nodesIt = nodes.iterator(); while (nodesIt.hasNext()) { Node node = nodesIt.next(); String rackId = node.getAttributes().get("rack_id").get(0); if ("rack_one".equals(rackId) == false) { nodesIt.remove(); } } } } }); 【5. 配置HTTP异步请求ES的线程数】
/* 配置异步请求的线程数量，Apache Http Async Client默认启动一个调度程序线程，以及由连接管理器使用的许多工作线程 （与本地检测到的处理器数量一样多，取决于Runtime.getRuntime().availableProcessors()返回的数量）。线程数可以修改如下, 这里是修改为1个线程，即默认情况 */ clientBuilder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() { @Override public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpAsyncClientBuilder) { return httpAsyncClientBuilder.setDefaultIOReactorConfig( IOReactorConfig.custom().setIoThreadCount(1).build() ); } }); 【6. 配置连接超时和套接字超时】
/* 配置请求超时，将连接超时（默认为1秒）和套接字超时（默认为30秒）增加， 这里配置完应该相应地调整最大重试超时（默认为30秒），即上面的setMaxRetryTimeoutMillis，一般于最大的那个值一致即60000 */ clientBuilder.setRequestConfigCallback(new RestClientBuilder.RequestConfigCallback() { @Override public RequestConfig.Builder customizeRequestConfig(RequestConfig.Builder requestConfigBuilder) { // 连接5秒超时，套接字连接60s超时 return requestConfigBuilder.setConnectTimeout(5000).setSocketTimeout(60000); } }); 【7. 配置ES安全认证】
/* 如果ES设置了密码，那这里也提供了一个基本的认证机制，下面设置了ES需要基本身份验证的默认凭据提供程序 */ final CredentialsProvider credentialsProvider = new BasicCredentialsProvider(); credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials("user", "password")); clientBuilder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() { @Override public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) { return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider); } }); /* 上面采用异步机制实现抢先认证，这个功能也可以禁用，这意味着每个请求都将在没有授权标头的情况下发送，然后查看它是否被接受， 并且在收到HTTP 401响应后，它再使用基本认证头重新发送完全相同的请求，这个可能是基于安全、性能的考虑 */ clientBuilder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() { @Override public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) { // 禁用抢先认证的方式 httpClientBuilder.disableAuthCaching(); return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider); } }); 【8. 配置通信加密】
/* 配置通信加密，有多种方式：setSSLContext、setSSLSessionStrategy和setConnectionManager(它们的重要性逐渐递增) */ KeyStore truststore = KeyStore.getInstance("jks"); try (InputStream is = Files.newInputStream(keyStorePath)) { truststore.load(is, keyStorePass.toCharArray()); } SSLContextBuilder sslBuilder = SSLContexts.custom().loadTrustMaterial(truststore, null); final SSLContext sslContext = sslBuilder.build(); clientBuilder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() { @Override public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) { return httpClientBuilder.setSSLContext(sslContext); } }); 2.3 控制器
主要看getEsInfo这个方法和它的返回结果
@RestController @RequestMapping("/rest/book") public class BookController { @Autowired private RestClient client; // // RequestOptions类保存应在同一应用程序中的多个请求之间共享的部分请求 // private static final RequestOptions COMMON_OPTIONS; // // static { // RequestOptions.Builder builder = RequestOptions.DEFAULT.toBuilder(); // // 添加所有请求所需的任何标头。 // builder.addHeader("Authorization", "Bearer " + TOKEN); // // 自定义响应使用者 // builder.setHttpAsyncResponseConsumerFactory( // new HttpAsyncResponseConsumerFactory.HeapBufferedResponseConsumerFactory(30 * 1024 * 1024 * 1024)); // COMMON_OPTIONS = builder.build(); // } @RequestMapping(value = "/go", method = RequestMethod.GET) public ResponseEntity<String> go() { return new ResponseEntity<>("go", HttpStatus.OK); } /** * 同步执行HTTP请求 * @return * @throws IOException */ @RequestMapping(value = "/es", method = RequestMethod.GET) public ResponseEntity<String> getEsInfo() throws IOException { // 构造HTTP请求，第一个参数是请求方法，第二个参数是服务器的端点，host默认是http://localhost:9200 Request request = new Request("GET", "/"); // // 设置其他一些参数比如美化json // request.addParameter("pretty", "true"); // // 设置请求体 // request.setEntity(new NStringEntity("{\"json\":\"text\"}", ContentType.APPLICATION_JSON)); // // 还可以将其设置为String，默认为ContentType为application/json // request.setJsonEntity("{\"json\":\"text\"}"); /* performRequest是同步的，将阻塞调用线程并在请求成功时返回Response，如果失败则抛出异常 内部属性可以取出来通过下面的方法 */ Response response = client.performRequest(request); // // 获取请求行 // RequestLine requestLine = response.getRequestLine(); // // 获取host // HttpHost host = response.getHost(); // // 获取状态码 // int statusCode = response.getStatusLine().getStatusCode(); // // 获取响应头 // Header[] headers = response.getHeaders(); // 获取响应体 String responseBody = EntityUtils.toString(response.getEntity()); return new ResponseEntity<>(responseBody, HttpStatus.OK); } /** * 异步执行HTTP请求 * @return */ @RequestMapping(value = "/es/asyn", method = RequestMethod.GET) public ResponseEntity<String> asynchronous() { Request request = new Request( "GET", "/"); client.performRequestAsync(request, new ResponseListener() { @Override public void onSuccess(Response response) { System.out.println("异步执行HTTP请求并成功"); } @Override public void onFailure(Exception exception) { System.out.println("异步执行HTTP请求并失败"); } }); return null; } /** * 并行异步执行HTTP请求 */ @RequestMapping(value = "/ps", method = RequestMethod.POST) public void parallAsyn(@RequestBody Book[] documents) { // final CountDownLatch latch = new CountDownLatch(documents.length); // for (int i = 0; i < documents.length; i++) { // Request request = new Request("PUT", "/posts/doc/" + i); // //let's assume that the documents are stored in an HttpEntity array // request.setEntity(documents[i]); // client.performRequestAsync( // request, // new ResponseListener() { // @Override // public void onSuccess(Response response) { // // latch.countDown(); // } // // @Override // public void onFailure(Exception exception) { // // latch.countDown(); // } // } // ); // } // latch.await(); } /** * 添加ES对象, Book的ID就是ES中存储的document的ID，所以最好不要为空，自定义生成的ID太浮夸 * * @return ResponseEntity * @throws IOException */ @RequestMapping(value = "/", method = RequestMethod.POST) public ResponseEntity<String> add(@RequestBody Book book) throws IOException { // 构造HTTP请求，第一个参数是请求方法，第二个参数是服务器的端点，host默认是http://localhost:9200， // endpoint直接指定为index/type的形式 Request request = new Request("POST", new StringBuilder("/book/book/"). append(book.getId()).toString()); // 设置其他一些参数比如美化json request.addParameter("pretty", "true"); JSONObject jsonObject = new JSONObject(book); System.out.println(jsonObject.toString()); // 设置请求体并指定ContentType，如果不指定默认为APPLICATION_JSON request.setEntity(new NStringEntity(jsonObject.toString())); // 发送HTTP请求 Response response = client.performRequest(request); // 获取响应体, id: AWXvzZYWXWr3RnGSLyhH String responseBody = EntityUtils.toString(response.getEntity()); return new ResponseEntity<>(responseBody, HttpStatus.OK); } /** * 根据id获取ES对象 * * @param id * @return * @throws IOException */ @RequestMapping(value = "/{id}", method = RequestMethod.GET) public ResponseEntity<String> getBookById(@PathVariable("id") String id) { Request request = new Request("GET", new StringBuilder("/book/book/"). append(id).toString()); // 添加json返回优化 request.addParameter("pretty", "true"); Response response = null; String responseBody = null; try { // 执行HHTP请求 response = client.performRequest(request); responseBody = EntityUtils.toString(response.getEntity()); } catch (IOException e) { return new ResponseEntity<>("can not found the book by your id", HttpStatus.NOT_FOUND); } return new ResponseEntity<>(responseBody, HttpStatus.OK); } /** * 根据id更新Book * * @param id * @param book * @return */ @RequestMapping(value = "/{id}", method = RequestMethod.PUT) public ResponseEntity<String> updateBook(@PathVariable("id") String id, @RequestBody Book book) throws IOException { // 构造HTTP请求 Request request = new Request("POST", new StringBuilder("/book/book/"). append(id).append("/_update").toString()); request.addParameter("pretty", "true"); // 将数据丢进去，这里一定要外包一层“doc”，否则内部不能识别 JSONObject jsonObject = new JSONObject(); jsonObject.put("doc", new JSONObject(book)); request.setEntity(new NStringEntity(jsonObject.toString())); // 执行HTTP请求 Response response = client.performRequest(request); // 获取返回的内容 String responseBody = EntityUtils.toString(response.getEntity()); return new ResponseEntity<>(responseBody, HttpStatus.OK); } /** * 使用脚本更新Book * @param id * @param * @return * @throws IOException */ @RequestMapping(value = "/update2/{id}", method = RequestMethod.PUT) public ResponseEntity<String> updateBook2(@PathVariable("id") String id, @RequestParam("name") String name) throws IOException { // 构造HTTP请求 Request request = new Request("POST", new StringBuilder("/book/book/"). append(id).append("/_update").toString()); request.addParameter("pretty", "true"); JSONObject jsonObject = new JSONObject(); // 创建脚本语言，如果是字符变量，必须加单引号 StringBuilder op1 = new StringBuilder("ctx._source.name=").append("'" + name + "'"); jsonObject.put("script", op1); request.setEntity(new NStringEntity(jsonObject.toString(), ContentType.APPLICATION_JSON)); // 执行HTTP请求 Response response = client.performRequest(request); // 获取返回的内容 String responseBody = EntityUtils.toString(response.getEntity()); return new ResponseEntity<>(responseBody, HttpStatus.OK); } @RequestMapping(value = "/{id}", method = RequestMethod.DELETE) public ResponseEntity<String> deleteById(@PathVariable("id") String id) throws IOException { Request request = new Request("DELETE", new StringBuilder("/book/book/").append(id).toString()); request.addParameter("pretty", "true"); // 执行HTTP请求 Response response = client.performRequest(request); // 获取结果 String responseBody = EntityUtils.toString(response.getEntity()); return new ResponseEntity<>(responseBody, HttpStatus.OK); } } 详细案例见Jacksonary/elasticsearch_data中的es_java_rest模块
3. 整合案例三（使用Spring-data-es）
除了上述方式，Spring也提供了本身基于SpringData实现的一套方案spring-data-elasticsearch，版本之间的搭配建议为：
| spring data elasticsearch | elasticsearch |
|---|---|
| 3.1.x | 6.2.2 |
| 3.0.x | 5.5.0 |
| 2.1.x | 2.4.0 |
| 2.0.x | 2.2.0 |
| 1.3.x | 1.5.2 |
由于ES 6.4还没有被支持，这里选择的版本搭配为ES 6.2.2， Spring-data-es版本为3.1.0.BUILD-SNAPSHOT，结果整合失败，一直报错failed to load elasticsearch nodes : org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available，然后尝试换成Data ES 3.0.10版本成功整合，步骤如下：
1.引入依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>elasticsearch_dataartifactId>
<groupId>com.glodongroupId>
<version>1.0-SNAPSHOTversion>
parent>
<modelVersion>4.0.0modelVersion>
<artifactId>es_java_dataartifactId>
<dependencies>
<dependency>
<groupId>org.springframework.datagroupId>
<artifactId>spring-data-elasticsearchartifactId>
<version>3.0.10.RELEASEversion>
dependency>
dependencies>
<repositories>
<repository>
<id>spring-libs-releaseid>
<name>Spring Releasesname>
<url>https://repo.spring.io/libs-releaseurl>
<snapshots>
<enabled>falseenabled>
snapshots>
repository>
repositories>
project>
2.配置Data ES
spring:
data:
elasticsearch:
cluster-nodes: localhost:9300 # 配置IP及端口号
cluster-name: elasticsearch
# cluster-name: elasticsearch622 # 配置集群名，默认为elasticsearch，如果手动更改过，这里一定要指定
# repositories:
# enabled: true
3.创建ElasticsearchRepository实例对象
public interface BookRepository extends ElasticsearchRepository<Book, String> { Book findByName(String name); List<Book> findByAuthor(String author); Book findBookById(String id); } 4.配置Repositories扫描
/** * @author liuwg-a * @date 2018/9/18 14:04 * @description 基础包的注释驱动配置，配置自动扫描的repositories根目录 */ @Configuration @EnableElasticsearchRepositories(basePackages = "com.glodon.repositories") public interface ESConfig { } 5.控制器一顿操作，增、删、改、查
package com.glodon.controllers; import com.glodon.models.Book; import com.glodon.repositories.BookRepository; import org.apache.commons.lang3.StringUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.*; /** * @author liuwg-a * @date 2018/9/18 10:43 * @description */ @RequestMapping("/book") @RestController public class BookController { @Autowired BookRepository bookRepository; @RequestMapping(value = "/add_index", method = RequestMethod.POST) public ResponseEntity<String> indexDoc(@RequestBody Book book) { System.out.println("book===" + book); bookRepository.save(book); return new ResponseEntity<>("save executed!", HttpStatus.OK); } @RequestMapping(value = "/", method = RequestMethod.GET) public ResponseEntity<Iterable> getAll() { Iterable<Book> all = bookRepository.findAll(); return new ResponseEntity<>(all, HttpStatus.OK); } @RequestMapping(value = "/{name}", method = RequestMethod.GET) public ResponseEntity<Book> getByName(@PathVariable("name") String name) { Book book = bookRepository.findByName(name); return new ResponseEntity<>(book, HttpStatus.OK); } @RequestMapping(value = "/{id}", method = RequestMethod.PUT) public ResponseEntity<Book> updateBook(@PathVariable("id") String id, @RequestBody Book updateBook) { Book book = bookRepository.findBookById(id); if (StringUtils.isNotBlank(updateBook.getId())) { book.setId(updateBook.getId()); } if (StringUtils.isNotBlank(updateBook.getName())) { book.setName(updateBook.getName()); } if (StringUtils.isNotBlank(updateBook.getAuthor())) { book.setAuthor(updateBook.getAuthor()); } bookRepository.save(book); return new ResponseEntity<>(book, HttpStatus.OK); } @RequestMapping(value = "/{id}", method = RequestMethod.DELETE) public ResponseEntity<String> deleteBook(@PathVariable("id") String id) { bookRepository.deleteById(id); return new ResponseEntity<>("delete execute!", HttpStatus.OK); } } 具体案例见Jacksonary/elasticsearch_data中的es_java_data模块。
后来我再次尝试上述的配置也是可以操作ES 5.5.0版本。
ES官方对于不同语言操作提供了不同客户端，上述只是入门的简单操作，具体参看Elasticsearch Clients。