JAVA使用elasticsearch-java:8版本获取请求的DSL内容json串

 

 

public static String convert(SearchRequest request){
        JacksonJsonpMapper mapper=new JacksonJsonpMapper();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        JsonGenerator generator = mapper.jsonProvider().createGenerator(baos);
        mapper.serialize(request, generator);
        generator.close();
        return baos+"";
    }