一、UpdateRequest
创建一个UpdateRequest,然后将其发送给client.
UpdateRequest uRequest = new UpdateRequest() uRequest.index("blog") uRequest.type("article") uRequest.id("2") uRequest.doc(jsonBuilder().startObject().field("content", "学习目标 掌握java泛型的产生意义ssss").endObject()) client.update(uRequest).get()
二、prepareUpdate()
2.1使用脚本方式
首先打开elasticsearch-2.3.3/config/elasticsearch.yml,新增一行:
script.engine.groovy.inline.update: on
之后重启elasticsearch.
client.prepareUpdate("blog", "article", "1") .setScript(new Script("ctx._source.title = \"git入门\"", ScriptService.ScriptType.INLINE, null, null)) .get()
2.2使用doc方式
client.prepareUpdate("blog", "article", "1") .setDoc(jsonBuilder().startObject().field("content", "SVN与Git对比。。。").endObject()).get()
三、updateRequest
UpdateRequest updateRequest = new UpdateRequest("blog", "article", "1") .doc(jsonBuilder().startObject().field("commet", "0").endObject()) client.update(updateRequest).get()
这种方式可以新增字段。
四、upsert
如果文档不存在则创建新的索引.
IndexRequest indexRequest = new IndexRequest("blog", "article", "10").source(jsonBuilder().startObject() .field("title", "Git安装10").field("content", "学习目标 git。。。10").endObject())UpdateRequest uRequest2 = new UpdateRequest("blog", "article", "10").doc( jsonBuilder().startObject().field("title", "Git安装").field("content", "学习目标 git。。。").endObject()) .upsert(indexRequest) client.update(uRequest2).get()
这个例子中,如果blog/article/10存在,那么根据UpdateRequest更新索引;如果不存在,新建indexRequest索引.
五、java demo
package cn.com.bropen.esimport java.io.IOExceptionimport java.net.InetAddressimport java.net.UnknownHostExceptionimport java.util.concurrent.ExecutionExceptionimport org.elasticsearch.action.index.IndexRequestimport org.elasticsearch.action.update.UpdateRequestimport org.elasticsearch.client.Clientimport org.elasticsearch.client.transport.TransportClientimport org.elasticsearch.common.transport.InetSocketTransportAddressimport org.elasticsearch.script.Scriptimport org.elasticsearch.script.ScriptServiceimport static org.elasticsearch.common.xcontent.XContentFactory.*public class ElasticSearchUpdate { private static Client client public static void main(String[] args) { try { // client startup client = TransportClient.builder().build() .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("127.0.0.1"), 9300)) } catch (UnknownHostException e) { e.printStackTrace() } upMethod1() } public static void upMethod1() { try { // 方法一:创建一个UpdateRequest,然后将其发送给client. UpdateRequest uRequest = new UpdateRequest() uRequest.index("blog") uRequest.type("article") uRequest.id("22") uRequest.doc(jsonBuilder().startObject().field("content", "学习目标 掌握java泛型的产生意义ssss").endObject()) client.update(uRequest).get() } catch (IOException e) { e.printStackTrace() } catch (InterruptedException e) { e.printStackTrace() } catch (ExecutionException e) { e.printStackTrace() } } public static void upMethod2() { // 方法二:prepareUpdate() 使用脚本更新索引 client.prepareUpdate("blog", "article", "1") .setScript(new Script("ctx._source.title = \"git入门\"", ScriptService.ScriptType.INLINE, null, null)) .get() } public static void upMethod3() { // 方法三:prepareUpdate() 使用doc更新索引 try { client.prepareUpdate("blog", "article", "1") .setDoc(jsonBuilder().startObject().field("content", "SVN与Git对比。。。").endObject()).get() } catch (IOException e) { e.printStackTrace() } } public static void upMethod4() { // 方法四: 增加新的字段 try { UpdateRequest updateRequest = new UpdateRequest("blog", "article", "1") .doc(jsonBuilder().startObject().field("commet", "0").endObject()) client.update(updateRequest).get() } catch (IOException e) { e.printStackTrace() } catch (InterruptedException e) { e.printStackTrace() } catch (ExecutionException e) { e.printStackTrace() } } public static void upMethod5() { // 方法五:upsert 如果文档不存在则创建新的索引 try { IndexRequest indexRequest = new IndexRequest("blog", "article", "10").source(jsonBuilder().startObject() .field("title", "Git安装10").field("content", "学习目标 git。。。10").endObject()) UpdateRequest uRequest2 = new UpdateRequest("blog", "article", "10").doc( jsonBuilder().startObject().field("title", "Git安装").field("content", "学习目标 git。。。").endObject()) .upsert(indexRequest) client.update(uRequest2).get() } catch (IOException e) { e.printStackTrace() } catch (InterruptedException e) { e.printStackTrace() } catch (ExecutionException e) { e.printStackTrace() } }}