我在使用 Elasticsearch 中的java RestHighLevelClient 创建索引时遇到问题,而我的 CreateIndexResponse 对象因此为null。
我实际上能够创建索引,我稍后可以确认它,但是当我创建索引时,我得到了这个异常。这是我的代码:
`CreateIndexRequest request = new CreateIndexRequest("myindex");
CreateIndexResponse createIndexResponse = client.indices().create(request);`
Elasticsearch使用以下命令返回成功消息:
`HTTP 200 Success
{
"acknowledged": true,
"shards_acknowledged": true
}`
我实际上可以稍后通过GET调用检索索引,但是当 RestHighLevelClient 尝试解析响应时,使用以下内部调用:
//Type of the response converter: CheckedFunction<Req, Request, IOException> requestConverter
responseConverter.apply(response);
发生以下异常:
java.io.IOException: Unable to parse response body for
Response{requestLine=PUT /myindex?master_timeout=30s&timeout=30s HTTP/1.1,
host=http://localhost:9200, response=HTTP/1.1 200 OK}
at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:507)
at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:474)
at org.elasticsearch.client.IndicesClient.create(IndicesClient.java:77)
at hello.client.HelloClient.createSynch(HelloClient.java:84)
at hello.main.Main.main(Main.java:25)
Caused by: java.lang.IllegalArgumentException: Required [index]
所以基本上这就是说下面的响应无法解析,但对我来说它看起来很容易解析:
Response{requestLine=PUT /myindex?master_timeout=30s&timeout=30s HTTP/1.1,
host=http://localhost:9200, response=HTTP/1.1 200 OK}
为什么它告诉我索引丢失了?是不是我错误地使用了Java客户端?这是版本:
<dependencies>
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>elasticsearch-rest-high-level-client</artifactId>
<version>6.2.1</version>
</dependency>
</dependencies>`
提前感谢您的帮助!