[英]Java rest elastic search json documents
I am trying to sends json documents to elasticsearch by using java rest . 我正在尝试使用java rest将json文档发送到elasticsearch。
I just need to know how to initialize the variable "entities[i]" and put json documents in its.I have try many ways but still do not get something which work. 我只需要知道如何初始化变量“ entities [i]”并将json文档放入其中。我已经尝试了很多方法,但仍然没有得到有效的解决方法。
here is the code from elastticsearch website: https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/_example_requests.html 这是elastticsearch网站上的代码: https ://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/_example_requests.html
int numRequests = 10;
final CountDownLatch latch = new CountDownLatch(numRequests);
for (int i = 0; i < numRequests; i++) {
restClient.performRequestAsync(
"PUT",
"/twitter/tweet/" + i,
Collections.<String, String>emptyMap(),
//assume that the documents are stored in an entities array
entities[i],
new ResponseListener() {
@Override
public void onSuccess(Response response) {
System.out.println(response);
latch.countDown();
}
@Override
public void onFailure(Exception exception) {
latch.countDown();
}
}
);
}
//wait for all requests to be completed
latch.await();
Thanks you 谢谢
int numRequests = 1;
final CountDownLatch latch = new CountDownLatch(numRequests);
HttpEntity entity = new NStringEntity(
"{\n" +
" \"user\" : \"kimchy\",\n" +
" \"post_date\" : \"2009-11-15T14:12:12\",\n" +
" \"message\" : \"trying out Elasticsearch\"\n" +
"}", ContentType.APPLICATION_JSON);
List<HttpEntity> entities = asList(entity);
for (int i = 0; i < numRequests; i++) {
restClient.performRequestAsync(
"PUT",
"/twitter/tweet/" + i,
Collections.<String, String>emptyMap(),
entities.get(i),
new ResponseListener() {
@Override
public void onSuccess(Response response) {
System.out.println(response);
latch.countDown();
}
@Override
public void onFailure(Exception exception) {
latch.countDown();
}
}
);
}
latch.await();
The entity is a type HttpEntity.You need to create list of HttpEntity objects in the list and use them. 该实体是HttpEntity类型。您需要在列表中创建HttpEntity对象列表并使用它们。
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