springcloud feign传输List的坑及解决

2022-03-16 10:52:41 作者：魔术师

这篇文章主要介绍了springcloud feign传输List的坑及解决方案，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教

feign传输List的坑

无法直接传输List

错误方法1

@RequestMapping(value = "/stat/merchant/get_merchant_compare_info", method = RequestMethod.POST)
@ResponseBody
MerchantCompareTotalInfo getMerchantCompareInfo(
  @RequestParam(value = "licenseNoList")
  List<String> licenseNoList);

错误：

feign.FeignException: status 500 reading MerchantStatRemoteApi#getMerchantCompareInfo(List); content

错误方法2

@RequestMapping(value = "/stat/merchant/get_merchant_compare_info", method = RequestMethod.POST)
@ResponseBody
MerchantCompareTotalInfo getMerchantCompareInfo(@RequestBody List<String> licenseNoList);

错误：

feign.FeignException: status 500 reading MerchantStatRemoteApi#getMerchantCompareInfo(List); content

错误方法3

@RequestMapping(value = "/stat/merchant/get_merchant_compare_info", method = RequestMethod.POST)
@ResponseBody
MerchantCompareTotalInfo getMerchantCompareInfo(@RequestBody String[] licenseNoList);

服务端的数组是null

正确方法：

@RequestMapping(value = "/stat/merchant/get_merchant_compare_info", method = RequestMethod.POST)
@ResponseBody
MerchantCompareTotalInfo getMerchantCompareInfo(@RequestParam("licenseNoList") String[] licenseNoList);

feign调用传List接不到值

改为传数组 List<Long> 改为 Long[] 再用Arrays.asList()变成集合

以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。