@RequestMapping("/searchTest")
public ModelAndView searchTest(HttpServletRequest request, HttpServletResponse response) throws Exception {
RequestBuilder<SearchRequest> requestBuilder = new RequestBuilder<SearchRequest>();
SearchRequest searchRequest = requestBuilder.mappingRequestParam(request, SearchRequest.class);
Map<String, Object> userRequest = new HashMap<String, Object>();
userRequest.put("collectionName",searchRequest.getCollectionName());
userRequest.put("customQuery",searchRequest.getCustomQuery());
userRequest.put("keyword",searchRequest.getKeyword());
userRequest.put("searchField",searchRequest.getSearchField());
userRequest.put("sort",searchRequest.getSort());
userRequest.put("pageNum",searchRequest.getPageNum());
userRequest.put("pageSize",searchRequest.getPageSize());
userRequest.put("ft", searchRequest.getFilter());
userRequest.put("rq", searchRequest.getRegexQuery());
SearchResult searchResult = searchService.search(searchRequest);
CrescentCollections crescentCollections = collectionHandler.getCrescentCollections();