【ElasticSearch】文档（更新）单个和批量

1、单个更新文档

rest api

POST myindex/_update/1
{
  "doc": {
    "name": "Smith"
  }
}
不存在则添加，存在则更新
POST myindex/_update/2
{
  "upsert": {
    "name": "Alice Smith"
  }
}

java 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、批量更新文档

rest api

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"
    }
  }
}

java client

String newName = "New Alice";
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
boolQueryBuilder.must(QueryBuilders.termQuery("name", "Alice"));
UpdateByQueryRequest request = new UpdateByQueryRequest(index);
request.setConflicts("proceed");
request.setQuery(boolQueryBuilder);
request.setScript(new Script("ctx._source.name=" + newName + ";"));
BulkByScrollResponse bulkByScrollResponse = restHighLevelClient.updateByQuery(updateByQueryRequest, RequestOptions.DEFAULT);
List<BulkItemResponse.Failure> bulkFailures = bulkByScrollResponse.getBulkFailures();
for (BulkItemResponse.Failure bulkFailure : bulkFailures) {
    System.out.println(bulkFailure.getMessage());
}
RefreshRequest refreshRequest = new RefreshRequest(updateByQueryRequest.getSearchRequest().indices());
restHighLevelClient.indices().refresh(refreshRequest, RequestOptions.DEFAULT);

脚本

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

替换

POST /myindex/_update_by_query
{
  "script": {
    "source": "ctx._source.resourceContent = ctx._source.resourceContent.replace('123123','123')",
    "lang": "painless"
  },
  "query": {
    "bool": {
      "must": [
        {
          "exists": {
            "field": "resourceContent"
          }
        }
      ]
    }
  }
}