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O'Reilly Platform
book
可编程网络自动化
by
Jason Edelman
,
Scott S. Lowe
,
Matt Oswalt
January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Posts & Telecom Press
Content preview from
可编程网络自动化
数据格式与数据模型
|
131
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
interface GigabitEthernet0/1
ip address 172.16.31.1 255.255.255.0
interface GigabitEthernet0/2
ip address 10.3.2.1 255.255.254.0
如你所见,可以使用
XSLT
生成网络配置。但是必须承认,它确实有点儿麻烦。你可能会
发现
Jinja
是一种更适用于创建网络配置的模板语言
,它拥有许多有助于网络自动化的特
性。第
6
章会介绍
Jinja
。
5.3.4
使用
XQuery
搜索
XML
上一节提到了在
XSLT
文档中使用
XPath
来具体定位
XML
文档中的特定节点。但是,如
果要执行更高级的查找,那么需要的就不止是简单的坐标系统了。
XQuery
利用
XPath
之类的工具从
XML
文档中查找和提取数据
。如果你正在使用
Python
访问路由器或交换机的
RESTful
API
,则可能需要再额外编写一些代码才能得到所需那部
分
XML
输出
。或者,可以对接收到的数据立即使用
XQuery
,仅显示与
Python
程序相关
的数据。
XQuery
是一个功能强大的工具
,几乎就像是一种编程语言。有关
XQuery
的更多信息,可
以参见
W3C
规范。
5.4
JSON
到目前为止,本章已经讨论过
YAML
,这是一种非常适合于人类交互的工具,可以轻松导
入到常见的编程语言数据结构中。我们还讨论了 ...
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Publisher Resources
ISBN: 9787115606181