RestTemplate.exchange获取指定对象数组集合 取指定字段值List

1 RestTemplate.exchange获取指定对象数组

ResponseEntity responseEntity = restTemplate.exchange(requestEntity, DtoCoin[].class);

DtoCoin[] dtoCoins = responseEntity.getBody();

2 获取 指定字段coin的 value值List

Set curCoinSet = Arrays.stream(dtoCoins).map(DtoCoin::getCoin).collect(Collectors.toSet());