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[英]ElasticSearch Java API TransportClient address in configuration file
[英]Why my elasticsearch failed to build transportclient in JAVA API?
我在Java中有一個簡單的彈性搜索代碼,如下所示:
public class TryElastic {
public static void main(String[] args) throws UnknownHostException {
Map<String, Object> json = new HashMap<String, Object>();
json.put("user","kimchy");
json.put("postDate",new Date());
json.put("message","trying out Elasticsearch");
try {
Settings settings = Settings.settingsBuilder()
.put("cluster.name", "elasticsearch")
.put("client.transport.sniff", true).build();
TransportClient client = TransportClient.builder().settings(settings).build();
//client.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));
} catch (NoNodeAvailableException e) {
System.out.println(e.toString());
}
System.out.println("test");
}
}
這很簡單,但我在以下行中出錯:
TransportClient client = TransportClient.builder().settings(settings).build();
它顯示如下錯誤消息:
Exception in thread "main" java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:78)
at java.io.InputStreamReader.<init>(InputStreamReader.java:113)
at org.elasticsearch.node.internal.InternalSettingsPreparer.randomNodeName(InternalSettingsPreparer.java:198)
at org.elasticsearch.node.internal.InternalSettingsPreparer.finalizeSettings(InternalSettingsPreparer.java:177)
at org.elasticsearch.node.internal.InternalSettingsPreparer.prepareSettings(InternalSettingsPreparer.java:64)
at org.elasticsearch.client.transport.TransportClient$Builder.build(TransportClient.java:119)
at TryElastic.main(TryElastic.java:64)
所以,你能給我一些建議嗎,我一直在尋找解決方案,但我找不到。 有沒有我要實現的配置? 我的elasticsearch服務器已正確運行,它可以執行索引並從命令提示符獲取查詢。 謝謝...
這段代碼適合我。 這是版本問題。 TransportClient的默認端口是9300,代碼不能使用Elasticsearch 2.0進行編譯
使用這個 :
設置設置= Settings.settingsBuilder()。output(“cluster.name”,clusterName).build();
客戶端客戶端= TransportClient.builder()。settings(settings).build()。addTransportAddress(new InetSocketTransportAddress(new InetSocketAddress(“127.0.0.1”,9300)));
參考: 這是鏈接
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