Elastic Stack：es JavaApi实现索引管理

一.创建索引

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@SpringBootTest(classes = SearchApplication.class) @RunWith(SpringRunner.class) public class TestIndex {     @Qualifier("restHighLevelClient")     @Autowired     RestHighLevelClient client;       @Test     public void test1() throws IOException, InterruptedException {         CreateIndexRequest request = new CreateIndexRequest("my_index");         //设置参数         request.settings(Settings.builder().put("number_of_shards","1").put("number_of_replicas","1").build());         //1.指定mapping映射         /*Map<String, Object> field1 = new HashMap<>();         field1.put("type","text");         field1.put("analyzer","standard");         Map<String, Object> field2 = new HashMap<>();         field2.put("type","text");         Map<String, Object> properties =new HashMap<>();         properties.put("field1",field1);         properties.put("field2",field2);         Map<String,Object> mapping = new HashMap<>();         mapping.put("properties",properties);         request.mapping(mapping);*/         //2.指定mapping映射         XContentBuilder builder = XContentFactory.jsonBuilder();         builder.startObject();         {             builder.startObject("properties");             {                 builder.startObject("field1");                 {                     builder.field("type","text");                 }                 builder.endObject();                 builder.startObject("field2");                 {                     builder.field("type","text");                 }                 builder.endObject();             }             builder.endObject();         }         builder.endObject();         request.mapping(builder);         //设置别名         request.alias(new Alias("prod_index"));         //可选参数         //超时时间         request.setTimeout(TimeValue.timeValueSeconds(5));         //主节点超时时间         request.setMasterTimeout(TimeValue.timeValueSeconds(5));         //设置创建索引api返回相应之前等待活动分片的数量         request.waitForActiveShards(ActiveShardCount.from(1));           //执行         //CreateIndexResponse response = client.indices().create(request, RequestOptions.DEFAULT);           //异步         ActionListener<CreateIndexResponse> listener = new ActionListener<>() {               @Override             public void onResponse(CreateIndexResponse createIndexResponse) {                 System.out.println(createIndexResponse.isAcknowledged());                 System.out.println(createIndexResponse.isShardsAcknowledged());             }               @Override             public void onFailure(Exception e) {                 e.printStackTrace();             }         };         client.indices().createAsync(request,RequestOptions.DEFAULT,listener);         Thread.sleep(5000);     } }

 二.删除索引

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@Test public void testDelete() throws InterruptedException {     DeleteIndexRequest indexRequest = new DeleteIndexRequest("my_index");     /*AcknowledgedResponse response = client.indices().delete(indexRequest,RequestOptions.DEFAULT);     System.out.println(response.isAcknowledged());*/     //异步     ActionListener<AcknowledgedResponse> responseActionListener = new ActionListener<>() {         @Override         public void onResponse(AcknowledgedResponse response) {             System.out.println(response.isAcknowledged());         }           @Override         public void onFailure(Exception e) {             e.printStackTrace();         }     };     client.indices().deleteAsync(indexRequest,RequestOptions.DEFAULT,responseActionListener);     Thread.sleep(5000); }

 三.查看索引是否存在

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@Test public void testExist() throws IOException {     GetIndexRequest request = new GetIndexRequest("my_index");     //从主节点返回本地索引信息状态     request.local(false);     //可读性     request.humanReadable(true);     //是否返回每个索引的所有默认设置     request.includeDefaults(false);     System.out.println(client.indices().exists(request, RequestOptions.DEFAULT)); }

 四.关闭索引

关闭索引后，该索引就不能添加文档了，需要重新开启索引。

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@Test public void testClose() throws IOException {     CloseIndexRequest request = new CloseIndexRequest("my_index");     CloseIndexResponse close = client.indices().close(request, RequestOptions.DEFAULT);     System.out.println(close.isAcknowledged()); }

 五.打开索引

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@Test public void testOpen() throws IOException {     OpenIndexRequest request = new OpenIndexRequest("my_index");     OpenIndexResponse open = client.indices().open(request, RequestOptions.DEFAULT);     System.out.println(open.isAcknowledged()); }