RestHighLevelClient判断判断index是否存在是否存在
判断Index是否存在版本以6.4.2为准，6.2.1api不一样
public boolean indexExists(String indexName) {
GetIndexRequest request = new GetIndexRequest();
request.indices(indexName);
try {
return rhlClient.indices().exists(request, RequestOptions.DEFAULT);
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
6.2.1api使用以下方法，通过异常捕获判断es_not_found_exception
public boolean isExistIndex(String indexName){
OpenIndexRequest openIndexRequest = new OpenIndexRequest(indexName);
/*IndicesExistsRequest request = new IndicesExistsRequest(indexName);
GetIndexRequest request = new GetIndexRequest();
org.elasticsearch.client.Client Client=client;
IndicesExistsResponse response = Client.admin().indices().exists(request).actionGet();
if (response.isExists()) {
return true;
}
return false;*/
try {
client.indices().open(openIndexRequest);
return true;
}catch (ElasticsearchException e) {
return false;
}catch (Exception e) {
return false;
}
}
作者：qq_34412985
评论0