如何将 Observable<String> 转换为 JSON

Question

我想将 Observable 对象转换为 json 对象ObjectMapper mapper = new ObjectMapper();    Observable<String> response = accountSearchService.searchAccount(paramMap, "", 0, 1);    mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);    AccountSearchResult resultDto = mapper.convertValue(response.subscribe().toString(), AccountSearchResult.class);这就是我想要做的，但得到 OnErrorNotImplementedException。请有人帮助我。