Question

我想使用 Nokogiri 解析 XML 中的值。

<?xml version="1.0" encoding="UTF-8"?>
<payment_response>
    <transaction_type>intersolve</transaction_type>
    <status>declined</status>
    <unique_id>a092ae8bac0ebc8c63dae3e0bd46331c</unique_id>
    <transaction_id>fa3fw6dwdeadesr7rd8e1c080600d6f5</transaction_id>
    <code>540</code>
    <technical_message>Amount exceeds credit card limit.</technical_message>
    <message>Amount exceeds credit card limit.</message>
    <mode>test</mode>
    <timestamp>2017-11-23T12:36:25Z</timestamp>
    <descriptor>test</descriptor>
    <amount>1000</amount>
    <currency>EUR</currency>
    <sent_to_acquirer>false</sent_to_acquirer>
</payment_response>

payment_response = Nori.new(:parser => :nokogiri, :advanced_typecasting => false).parse(@response)

如何从payment_response获取值？

Answer 1

您可以使用xpath执行此操作：

`start = 'yes'
temp = 'yes'
print('Start')
if start == 'yes':
    if temp == 'yes':
        temp_input = input('Is it 6 am?')
        temp = 'no'
        if temp_input == 'yes':
            print('Checking temperature == 22 degrees')
            temp_input = 'no'
    if temp_input == 'no':
        input2 = input('Is it 9 am?')`

使用Nori：

require 'nokogiri'

XML = <<-XML
<?xml version="1.0" encoding="UTF-8"?>
<payment_response>
    <transaction_type>intersolve</transaction_type>
    <status>declined</status>
    <unique_id>a092ae8bac0ebc8c63dae3e0bd46331c</unique_id>
    <transaction_id>fa3fw6dwdeadesr7rd8e1c080600d6f5</transaction_id>
    <code>540</code>
    <technical_message>Amount exceeds credit card limit.</technical_message>
    <message>Amount exceeds credit card limit.</message>
    <mode>test</mode>
    <timestamp>2017-11-23T12:36:25Z</timestamp>
    <descriptor>test</descriptor>
    <amount>1000</amount>
    <currency>EUR</currency>
    <sent_to_acquirer>false</sent_to_acquirer>
</payment_response>
XML

doc = Nokogiri::XML XML
doc.xpath('//payment_response/*').each { |element| puts element }
# <transaction_id>fa3fw6dwdeadesr7rd8e1c080600d6f5</transaction_id>
# <code>540</code>
# <technical_message>Amount exceeds credit card limit.

Answer 2

使用＆＃39; nori＆＃39;：

require 'nokogiri'
require 'nori'

@response = '<?xml version="1.0" encoding="UTF-8"?>
<payment_response>
    <transaction_type>intersolve</transaction_type>
    <status>declined</status>
    <unique_id>a092ae8bac0ebc8c63dae3e0bd46331c</unique_id>
    <transaction_id>fa3fw6dwdeadesr7rd8e1c080600d6f5</transaction_id>
    <code>540</code>
    <technical_message>Amount exceeds credit card limit.</technical_message>
    <message>Amount exceeds credit card limit.</message>
    <mode>test</mode>
    <timestamp>2017-11-23T12:36:25Z</timestamp>
    <descriptor>test</descriptor>
    <amount>1000</amount>
    <currency>EUR</currency>
    <sent_to_acquirer>false</sent_to_acquirer>
</payment_response>'

full_response = Nori.new(:parser => :nokogiri, :advanced_typecasting 
=> false).parse(@response)

在这里，您可以使用密钥payment_response获取哈希值。你正在寻找的是它的价值

full_response.map {|k1,v1|
    # puts "%s : %s /n" % [k1,v1]
    if v1.instance_of? Hash
        v1.map {|k2, v2|
            puts "%s : %s" % [k2,v2] # or [k2,v1[k2]]
        }
    end
}

我的输出是：

transaction_type : intersolve
status : declined
unique_id : a092ae8bac0ebc8c63dae3e0bd46331c
transaction_id : fa3fw6dwdeadesr7rd8e1c080600d6f5
code : 540
technical_message : Amount exceeds credit card limit.
message : Amount exceeds credit card limit.
mode : test
timestamp : 2017-11-23T12:36:25Z
descriptor : test
amount : 1000
currency : EUR
sent_to_acquirer : false

使用Nokogiri从XML获取值

2 个答案: