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guange 2019-01-18 10:23:18 +08:00
parent da3f9324b6
commit 411e14684f
2 changed files with 30 additions and 19 deletions
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2
chapter2/mysite/myapp/views.py
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@ -13,7 +13,7 @@ def crawl(request):
# info = scrapy_client.get_scrapy_info()
crawl_info = CrawlInfos.objects.order_by('-id').first()
platform_info = get_platform_info()
news = News.objects.all()
news = News.objects.order_by('-id')[0:20]
return render(request, 'myapp/crawl.html', {"crawl_info": crawl_info,
"platform_info":json.dumps(platform_info),
"news": news})

47
chapter3/spark.py
View File

@ -30,6 +30,33 @@ def today():
return time.strftime('%Y-%m-%d')
def collect_crawl_info(spark):
df = spark.sql("select count(*) as N from jd_comment")
jd_comment_count = df.rdd.collect()[0]["N"]
df = spark.sql("select count(*) as N from jd_comment where created_at like '"+today()+"%'")
jd_comment_today_count = df.rdd.collect()[0]["N"]
df = spark.sql("select count(*) as N from jd")
jd_count = df.rdd.collect()[0]["N"]
df = spark.sql("select count(*) as N from jd where created_at like '"+today()+"%'")
jd_today_count = df.rdd.collect()[0]["N"]
total_count = jd_comment_count + jd_count
today_total_count = jd_comment_today_count + jd_today_count
mysql_execute("insert into crawl_infos (total_count, today_total_count, product_count, today_product_count, comment_count, today_comment_count) values ({},{},{},{},{},{})".format(
total_count, today_total_count, jd_count,jd_today_count, jd_comment_count, jd_comment_today_count) )
def collect_news(spark):
df = spark.sql("select * from jd_comment order by created_at desc limit 20")
for row in df.rdd.collect():
mysql_execute("insert into news (comment_time, content, comment_id) values ('{}', '{}', '{}'')".format(
row["comment_time"], row["content"], row["id"]))
if __name__ == "__main__":
# $example on:spark_hive$
# warehouse_location points to the default location for managed databases and tables
@ -43,24 +70,8 @@ if __name__ == "__main__":
.getOrCreate()
while True:
df = spark.sql("select count(*) as N from jd_comment")
jd_comment_count = df.rdd.collect()[0]["N"]
df = spark.sql("select count(*) as N from jd_comment where created_at like '"+today()+"%'")
jd_comment_today_count = df.rdd.collect()[0]["N"]
df = spark.sql("select count(*) as N from jd")
jd_count = df.rdd.collect()[0]["N"]
df = spark.sql("select count(*) as N from jd where created_at like '"+today()+"%'")
jd_today_count = df.rdd.collect()[0]["N"]
total_count = jd_comment_count + jd_count
today_total_count = jd_comment_today_count + jd_today_count
mysql_execute("insert into crawl_infos (total_count, today_total_count, product_count, today_product_count, comment_count, today_comment_count) values ({},{},{},{},{},{})".format(
total_count, today_total_count, jd_count,jd_today_count, jd_comment_count, jd_comment_today_count) )
collect_crawl_info(spark)
collect_news(spark)
time.sleep(10)