Elasticsearch 7.3 java修改es索引数据
时间: 2024-02-29 10:26:19 浏览: 88
Java做客户端对Elasticsearch服务的增删改查及批量修改操作
要修改 Elasticsearch 索引中的数据,可以使用 Elasticsearch 的 Java API。具体步骤如下:
1. 创建一个 Elasticsearch 客户端对象:
```java
RestHighLevelClient client = new RestHighLevelClient(
RestClient.builder(
new HttpHost("localhost", 9200, "http")));
```
2. 创建一个更新请求对象,并指定要更新的索引、类型和文档 ID:
```java
UpdateRequest request = new UpdateRequest(
"index_name", // 索引名
"doc_type", // 类型名
"document_id" // 文档 ID
);
```
3. 指定要更新的文档内容:
```java
Map<String, Object> jsonMap = new HashMap<>();
jsonMap.put("field_name", "new_value");
request.doc(jsonMap);
```
4. 执行更新操作并获取响应结果:
```java
UpdateResponse response = client.update(request, RequestOptions.DEFAULT);
```
完整的 Java 代码示例:
```java
RestHighLevelClient client = new RestHighLevelClient(
RestClient.builder(
new HttpHost("localhost", 9200, "http")));
UpdateRequest request = new UpdateRequest(
"index_name",
"doc_type",
"document_id"
);
Map<String, Object> jsonMap = new HashMap<>();
jsonMap.put("field_name", "new_value");
request.doc(jsonMap);
UpdateResponse response = client.update(request, RequestOptions.DEFAULT);
```
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