spring-boot guide https://spring.io/guides/gs/messaging-jms/使用spring-boot-starter-activemq，而这又指spring-jms。如果我想使用不同的消息代理并且spring没有为该特定消息代理提供启动jar，那么如何在依赖项中包含spring-jms？我可以只包含spring-jms还是有更好的方法来做到这一点？
答案 0 :(得分：0)
这是正确的：你需要包括import scrapy
class CollegiateSpider(scrapy.Spider):
name = 'Collegiate'
allowed_domains = ['collegiate-ac.com']
start_urls = ['https://collegiate-ac.com/uk-student-accommodation/']
# Step 1 - Get the area links
def parse(self, response):
for url in response.xpath('//*[@id="top"]/div[1]/div/div[1]/div/ul/li/a/@href').extract():
url = response.urljoin(url)
#print('>>>', url)
yield scrapy.Request(url, callback=self.parse_area_page)
# Step 2 - Get the block links
def parse_area_page(self, response):
for url in response.xpath('//div[3]/div/div/div/a/@href').extract():
url = response.urljoin(url)
yield scrapy.Request(response.urljoin(url), callback=self.parse_unitpage)
# Step 3 Get the room links
def parse_unitpage(self, response):
for url in response.xpath('//*[@id="subnav"]/div/div[2]/ul/li[5]/a/@href').extract():
url = response.urljoin(url)
yield scrapy.Request(url, callback=self.parse_final)
# Step 4 - Scrape the data
def parse_final(self, response):
# show some information for test
print('>>> parse_final:', response.url)
# send url as item so it can save it in file
yield {'final_url': response.url}
# --- run it without project ---
import scrapy.crawler
c = scrapy.crawler.CrawlerProcess({
"FEED_FORMAT": 'csv',
"FEED_URI": 'output.csv'
})
c.crawl(CollegiateSpider)
c.start()
和
供应商特定的依赖关系。
更多信息位于Reference Manual。