新建索引，名称index1、类型blog、title与content用中文分词器
PUT /index1 { "settings": { "number_of_shards": 3, "number_of_replicas": 0 }, "mappings": { "blog":{ "properties": { "id":{ "type":"long" }, "title":{ "type": "text", "analyzer": "ik_max_word" }, "content":{ "type":"text", "analyzer": "ik_max_word" }, "postdate":{ "type":"date" }, "url":{ "type":"text" } } } } }
1、增加文档
@Test public void testAdd() throws IOException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //创建文档 XContentBuilder doc = XContentFactory.jsonBuilder() .startObject() .field("id","1") .field("title","java设计模式之装配模式") .field("content","在不必改变原类文件和使用继承的情况下，动态的扩展一个对象的功能") .field("postdate","2018-05-20") .field("url","csdn.net/79239027") .endObject(); //增加文档并返回结果 IndexResponse response = client.prepareIndex("index1","blog","10").setSource(doc).get(); //如果执行成功输出CREATED System.out.println(response.status()); client.close(); }
2、查询文档
@Test public void testQuery() throws UnknownHostException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //查询并返回结果，查询条件：索引是index1，类型是blog，id是10的数据 GetResponse response = client.prepareGet("index1","blog","10").execute().actionGet(); //如果查询到数据输出json字符串，否则输出null System.out.println(response.getSourceAsString()); client.close();//关闭客户端 }
3、修改文档
@Test public void testUpdate() throws IOException, InterruptedException, ExecutionException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //创建文档 XContentBuilder doc = XContentFactory.jsonBuilder() .startObject() .field("title","单例设计模式") .endObject(); //更新文档请求 UpdateRequest request = new UpdateRequest(); //指定更新的文档 request.index("index1").type("blog").id("10").doc(doc); //执行操作并返回结果 UpdateResponse response = client.update(request).get(); //如果更新成功输出OK，如果找不到数据序直接报错 System.out.println(response.status()); client.close(); }
4、删除文档
@Test public void testDelete() throws IOException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //删除文档并返回结果 DeleteResponse response = client.prepareDelete("index1","blog","10").get(); //如果删除成功输出OK,不存在输出NOT_FOUND System.out.println(response.status()); client.close(); }
5、如果存在则更新，不存在则新增
@Test public void testUpsert() throws IOException, InterruptedException, ExecutionException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //创建新增文档 XContentBuilder doc = XContentFactory.jsonBuilder() .startObject() .field("id","2") .field("title","工厂模式") .field("content","静态工厂，实例工厂。") .field("postdate","2018-05-20") .field("url","csdn.net/79239027") .endObject(); //创建更新文档 XContentBuilder doc2 = XContentFactory.jsonBuilder() .startObject() .field("title","设计模式") .endObject(); //指定新增的位置 IndexRequest request1 = new IndexRequest("index1","blog","8").source(doc); //创建更新请求 UpdateRequest request2 = new UpdateRequest("index1","blog","8").doc(doc2).upsert(request1); //执行并返回结果 UpdateResponse response = client.update(request2).get(); //如果执行增加输出CREATED，如果执行更新输出OK System.out.println(response.status()); }
附：完成测试类
package com.edu.elasticSearch; import java.io.IOException; import java.net.InetAddress; import java.net.UnknownHostException; import java.util.concurrent.ExecutionException; import org.elasticsearch.action.delete.DeleteResponse; import org.elasticsearch.action.get.GetResponse; import org.elasticsearch.action.index.IndexRequest; import org.elasticsearch.action.index.IndexResponse; import org.elasticsearch.action.update.UpdateRequest; import org.elasticsearch.action.update.UpdateResponse; import org.elasticsearch.client.transport.TransportClient; import org.elasticsearch.common.settings.Settings; import org.elasticsearch.common.transport.TransportAddress; import org.elasticsearch.common.xcontent.XContentBuilder; import org.elasticsearch.common.xcontent.XContentFactory; import org.elasticsearch.transport.client.PreBuiltTransportClient; import org.junit.Test; public class ESTest { @Test public void testAdd() throws IOException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //创建文档 XContentBuilder doc = XContentFactory.jsonBuilder() .startObject() .field("id","1") .field("title","java设计模式之装配模式") .field("content","在不必改变原类文件和使用继承的情况下，动态的扩展一个对象的功能") .field("postdate","2018-05-20") .field("url","csdn.net/79239027") .endObject(); //增加文档并返回结果 IndexResponse response = client.prepareIndex("index1","blog","10").setSource(doc).get(); //如果执行成功输出CREATED System.out.println(response.status()); client.close(); } @Test public void testQuery() throws UnknownHostException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //查询并返回结果，查询条件：索引是index1，类型是blog，id是10的数据 GetResponse response = client.prepareGet("index1","blog","10").execute().actionGet(); //如果查询到数据输出json字符串，否则输出null System.out.println(response.getSourceAsString()); client.close();//关闭客户端 } @Test public void testDelete() throws IOException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //删除文档并返回结果 DeleteResponse response = client.prepareDelete("index1","blog","10").get(); //如果删除成功输出OK,不存在输出NOT_FOUND System.out.println(response.status()); client.close(); } @Test public void testUpdate() throws IOException, InterruptedException, ExecutionException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //创建文档 XContentBuilder doc = XContentFactory.jsonBuilder() .startObject() .field("title","单例设计模式") .endObject(); //更新文档请求 UpdateRequest request = new UpdateRequest(); //指定更新的文档 request.index("index1").type("blog").id("10").doc(doc); //执行操作并返回结果 UpdateResponse response = client.update(request).get(); //如果更新成功输出OK，如果找不到数据序直接报错 System.out.println(response.status()); client.close(); } @Test public void testUpsert() throws IOException, InterruptedException, ExecutionException { //指定集群 Settings settings = Settings.builder().put("cluster.name","my-application").build(); //创建客户端 TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300)); //创建新增文档 XContentBuilder doc = XContentFactory.jsonBuilder() .startObject() .field("id","2") .field("title","工厂模式") .field("content","静态工厂，实例工厂。") .field("postdate","2018-05-20") .field("url","csdn.net/79239027") .endObject(); //创建更新文档 XContentBuilder doc2 = XContentFactory.jsonBuilder() .startObject() .field("title","设计模式") .endObject(); //指定新增的位置 IndexRequest request1 = new IndexRequest("index1","blog","8").source(doc); //创建更新请求 UpdateRequest request2 = new UpdateRequest("index1","blog","8").doc(doc2).upsert(request1); //执行并返回结果 UpdateResponse response = client.update(request2).get(); //如果执行增加输出CREATED，如果执行更新输出OK System.out.println(response.status()); } }
备注：网页客户端相关命令
GET /index1/blog/10
DELETE index1/blog/10
GET /index1/blog/8
DELETE index1/blog/8