Question

java 连 elaticsearch 5.6 依赖 elasticsearch插件吗

Answer 1

下面的例子把json文档写入所以，索引库名为twitter、类型为tweet,id为1：
import static org.elasticsearch.common.xcontent.XContentFactory.*;

IndexResponse response = client.prepareIndex("twitter", "tweet", "1")
.setSource(jsonBuilder()
.startObject()
.field("user", "kimchy")
.field("postDate", new Date())
.field("message", "trying out Elasticsearch")
.endObject()
)
.get();

也可以直接传人JSON字符串：
String json = "{" +
"\"user\":\"kimchy\"," +
"\"postDate\":\"2013-01-30\"," +
"\"message\":\"trying out Elasticsearch\"" +
"}";

IndexResponse response = client.prepareIndex("twitter", "tweet")
.setSource(json)
.get();

可以调用response对象的方法获取返回信息：
// 索引名称
String _index = response.getIndex();
// 类型名称
String _type = response.getType();
// 文档id
String _id = response.getId();
// 版本(if it's the first time you index this document, you will get: 1)
long _version = response.getVersion();
// 是否被创建is true if the document is a new one, false if it has been updated
boolean created = response.isCreated();