java - Elasticsearch 中的 BulkRequest java API 错误 : "The number of object passed must be even but was [1]"

Question

我正在尝试将 map 与 ElasticSearch Java Api 的批量插入 Api 一起使用

public  void bulkInsert(List<Map<String,String>> listOfObjects ){

    BulkRequestBuilder bulkRequest = client.prepareBulk();

    Iterator<Map<String,String>> itr = listOfObjects.iterator();

    if (itr.hasNext()){
        Map<String,String> document = itr.next();
        bulkRequest.add(client.prepareIndex(index, type)
                .setSource(document));
    }

    BulkResponse bulkResponse = bulkRequest.execute().actionGet();


    if (bulkResponse.hasFailures()) {
        System.out.println(bulkResponse.buildFailureMessage());
    }   

}

我用

Map<String,String> jsonMap = new HashMap<String,String>();

    jsonMap.put("name", fullName.toString());
    jsonMap.put("file", file);

    List<Map<String,String>> listOfObjects = new ArrayList<Map<String,String>>();
    listOfObjects.add(jsonMap);
    indexService.bulkInsert(listOfObjects);

我收到以下异常传递的对象数量必须是偶数但为[1]

Answer 1

好的，我得到了修复:使用 Map<String, Object>而不是 Map <String,String>

Map<String,Object> jsonMap = new HashMap<String,Object>();

    jsonMap.put("name", fullName.toString());
    jsonMap.put("file", file);

    List<Map<String,Object>> listOfObjects = new ArrayList<Map<String,Object>>();
    listOfObjects.add(jsonMap);
    indexService.bulkInsert(listOfObjects);

来自 ES java api ;

使用 map

Map 是一个键值对集合。它代表一个JSON结构:

Map<String, Object> json = new HashMap<String, Object>();
json.put("user","kimchy");
json.put("postDate",new Date());
json.put("message","trying out Elasticsearch");