ES7.x 根据非id字段更新，结合painless 和 script脚本【未测试】

本文链接：https://blog.youkuaiyun.com/zhanghe687/article/details/136680605

文章描述了一个使用ElasticsearchAPI进行批量更新文档的方法，涉及构建布尔查询、参数化条件、Painless脚本以及UpdateByQuery请求的实现过程。

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 public void batchUpdate(String indexType ,String userId, Integer cyberStartId, String cyberStarName, Integer mcnOrganId, String mcnOrganName) throws IOException {
        final BoolQueryBuilder queryBuilder = QueryBuilders.boolQuery().must(QueryBuilders.termQuery("user_id", userId));

        HashMap<String, Object> params = new HashMap<>();
        if (cyberStartId != null) {
            params.put("cyber_start_id", cyberStartId);
        }
        if (StringUtils.isNotEmpty(cyberStarName)) {
            params.put("cyber_star_name", cyberStarName);
        }
        if (mcnOrganId != null) {
            params.put("mcn_organ_id", mcnOrganId);
        }
        if (StringUtils.isNotEmpty(mcnOrganName)) {
            params.put("mcn_organ_name", mcnOrganName);
        }

        StringBuilder sb = new StringBuilder();
        if (params.containsKey("cyber_start_id")) {
            sb.append("ctx._source.cyber_start_id = params.cyber_start_id;");
        }
        if (params.containsKey("cyber_star_name")) {
            sb.append("ctx._source.cyber_star_name = params.cyber_star_name;");
        }
        if (params.containsKey("mcn_organ_id")) {
            sb.append("ctx._source.mcn_organ_id = params.mcn_organ_id;");
        }
        if (params.containsKey("mcn_organ_name")) {
            sb.append("ctx._source.mcn_organ_name = params.mcn_organ_name;");
        }

        final Script script = new Script(ScriptType.INLINE, "painless", sb.toString(), params);


        updateByQuery(queryBuilder, indexType, script);
    }

    public void updateByQuery(QueryBuilder queryBuilder, String index, Script script) throws IOException {
        UpdateByQueryRequest request = new UpdateByQueryRequest(index);
        request.setConflicts("proceed");
        request.setQuery(queryBuilder);
        request.setMaxDocs(10000);
        request.setScript(script);
        try {
            BulkByScrollResponse response = restHighLevelClient.updateByQuery(request, RequestOptions.DEFAULT);
            // 处理响应结果
        } catch (Exception e) {
            // 处理异常
        }
    }