from tenacity import retry, retry_if_exception_type, wait_fixed, stop_after_attempt from json.decoder import JSONDecodeError @retry(retry=retry_if_exception_type(JSONDecodeError), wait=wait_fixed(5), stop=stop_
The Polly NuGet package has been added and we are going to use the Retry Policy when querying database. The policy states that if an exception occurs, it will retry up to three times.Note how you execute the unreliable code inside the policy. ...
// 1.创建重试器对象privatefinalstaticRetryer<Boolean>retryer=RetryerBuilder.<Boolean>newBuilder().retryIfResult(Predicates.<Boolean>isNull())// 1.1当重试的方法返回null时候进行重试.retryIfExceptionOfType(IOException.class)// 1.2当重试方法抛出IOException类型异常时候进行重试.withStopStrategy(StopStrategies...
@retry(retry=retry_if_exception_type(JSONDecodeError)) def extract(url): info_json = requests.get(url).content.decode() info_dict = json.loads(info_json) data = info_dict['data'] save(data) 当然,这些特性都可以进行组合,例如只对JSONDecodeError 进行重试,每次间隔5秒,重试三次,那就写成: ...
@retry(retry=retry_if_exception_type(JSONDecodeError)) defextract(url):info_json = requests.get(url).content.decode() info_dict = json.loads(info_json) data = info_dict['data'] save(data) 当然,这些特性都可以进行组合,例如只对JSONDecodeErr...
except Exception: print('网页返回的不是有效的JSON格式字符串,重试!') for i in range(3): if extract(url): break data = info_dict['data'] save(data) return True 后来又发现,不能立刻重试,重试要有时间间隔,并且时间间隔逐次增大……
tbAccount.getVersion()); if(count==0){ throw new RetryException(""); } ...
raise Exception if __name__ == '__main__': stop_after_7_attempts() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 运行结果: 设置时间限制: tenacity 库还为我们提供了 stop_after_delay() from tenacity import retry, stop_after_delay ...
except Exception: print('网页返回的不是有效的JSON格式字符串,重试!') for i in range(3): if extract(url): break data = info_dict['data'] save(data) return True 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 后来又发现,不能立刻重试,重试要有时间间隔,并且时间间隔逐次增大……...
FastResultPolicy<String>resultPolicy=result->result.equals("444");FastRetryer<String>retryer=FastRetryBuilder.<String>builder() .attemptMaxTimes(3)// 指定最大重试次数.waitRetryTime(3,TimeUnit.SECONDS)// 指定下一次重试间隔时间.retryIfExceptionOfType(TimeoutException.class)// 指定,当发生指定异常Ti...