public static void KafkaToES(JSONObject json) throws IOException {
    JSONObject after = json.getJSONObject("payload").getJSONObject("after") ;
    XContentBuilder xContentBuilder = XContentFactory.jsonBuilder().startObject();
    for(String  field : after.keySet()){
        xContentBuilder.field(field,after.getString(field));
    }
    xContentBuilder.endObject();
    JSONObject source = json.getJSONObject("payload").getJSONObject("source");
    String esIndex = source.getString("connector")+"-"+source.getString("db")+"-"+source.getString("table");
    BulkRequestBuilder bulkRequest = client.prepareBulk();
    bulkRequest.add(client.prepareIndex(esIndex, "_doc").setSource(xContentBuilder)
    );
    BulkResponse bulkResponse = bulkRequest.get();
    if (bulkResponse.hasFailures()) {
        // process failures by iterating through each bulk response item
        System.out.println(bulkRequest.toString());
    }
    System.out.println("es写入成功");

}