用nifi executescript 生成3小时间隔字符串

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import java.io from datetime import datetime from org.apache.commons.io import IOUtils from java.nio.charset import StandardCharsets from org.apache.nifi.processor.io import StreamCallback   class GetDate(StreamCallback):   def __init__(self):         pass   def process(self, inputStream, outputStream):     #text = IOUtils.toString(inputStream, StandardCharsets.UTF_8)     dt = ''     months = [1, 4, 7, 10]     for year in range(1990,2016):         for i in range(len(months)):             dt1 = datetime(year, months[i], 1, 0, 0, 0)             if months[i] == 10:                 dt2 = datetime(year+1, 1, 1, 0, 0, 0)             else:                 dt2 = datetime(year, months[i]+3, 1, 0, 0, 0)             dt += dt1.strftime("%Y-%m-%d %H:%M:%S") + ',' + dt2.strftime("%Y-%m-%d %H:%M:%S") + ";"     outputStream.write(dt)       flowFile = session.create() if (flowFile != None):   flowFile = session.write(flowFile, GetDate())   #flowFile = session.putAttribute(flowFile, "filename", flowFile.getAttribute('filename').split('.')[0]+'_translated.json') session.transfer(flowFile, REL_SUCCESS) session.commit()

本文转自疯吻IT博客园博客，原文链接：http://www.cnblogs.com/fengwenit/p/6170180.html，如需转载请自行联系原作者