【ElasticSearch】文档（更新）

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1、根据ID更新文档

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1、根据ID更新文档

rest

POST myindex/_update/1
{
  "doc": {
    "name": "Smith"
  }
}

client

// 数据
Map<String, String> data = new HashMap<>();
data.put("name", "Smith");
// 索引和ID
UpdateRequest updateRequest = new UpdateRequest(index, id);
updateRequest.doc(data);
// 立即生效
updateRequest.setRefreshPolicy(WriteRequest.RefreshPolicy.IMMEDIATE);
UpdateResponse updateResponse = restHighLevelClient.update(updateRequest, RequestOptions.DEFAULT);
if (updateResponse.status() == RestStatus.OK) {
    return true;
} else {
    return false;
}

2、存在则更新，不存在则添加

POST myindex/_update/2
{
  "doc": {
    "name": "Alice Smith"
  },
  "upsert": {
    "name": "Alice Smith"
  }
}

3、根据条件更新文档

POST myindex/_update_by_query
{
  "query": {
    "bool": {
      "must": [
        {
          "term": {
            "name": {
              "value": "Alice"
            }
          }
        }
      ]
    }
  }, 
  "script": {
    "lang": "painless", 
    "source": "ctx._source.name = params.newname",
    "params": {
      "newname": "New Alice"
    }
  }
}

4、脚本更新文档

POST myindex/_update/1
{
  "script": {
    "lang": "painless",
    "source": "ctx._source.name = params.name",
    "params": {
      "name": "Bob"
    }
  }
}

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