我需要在 web.config 中的多个 WCF 服务中切换一个 IP 地址。通过 web.config 转换,除了通过 xpath 指定每个地址之外,还有什么方法可以创建搜索和替换语句。例如,为 1.2.3.4 的所有实例切换 IP 地址 1.2.3.4 和 4.3.2.1
问问题
2580 次
1 回答
4
假设您的 Web.config 是这样的(一个简化的场景,但 // 在 XPath 中适用于任何地方):
<configuration>
<endpoint address="1.2.3.4" />
<endpoint address="1.2.3.4" />
<endpoint address="1.2.3.4" />
<endpoint address="1.2.3.4" />
</configuration>
那么你将需要这样的东西:
<?xml version="1.0"?>
<!-- For more information on using web.config transformation visit http://go.microsoft.com/fwlink/?LinkId=125889 -->
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<replaceAll>
<endpontAddresses xdt:Locator="XPath(//endpoint[@address='1.2.3.4'])" xdt:Transform="SetAttributes(address)" address="4.3.2.1" />
</replaceAll>
</configuration>
注意:此 XPath 将查找每个整个 Web.config 中的元素并检查给定元素是否具有值等于“1.2.3.4”的地址属性。如果您需要更通用的东西,请尝试以下操作:
<?xml version="1.0"?>
<!-- For more information on using web.config transformation visit http://go.microsoft.com/fwlink/?LinkId=125889 -->
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<replaceAll>
<endpontAddresses xdt:Locator="XPath(//*[@address='1.2.3.4'])" xdt:Transform="SetAttributes(address)" address="4.3.2.1" />
</replaceAll>
</configuration>
这将查看每个 XML 元素(由于星号:*)并检查它是否具有值等于“1.2.3.4”的地址属性。所以这适用于这样的文件:
<configuration>
<endpoint name="serviceA" address="1.2.3.4" />
<endpoint name="serviceB" address="1.2.3.4" />
<endpoint name="serviceC" address="1.2.3.4" />
<endpoint2 address="1.2.3.4" />
<endpoint3 address="1.2.3.4" />
<endpoint4 address="1.2.3.4" />
<innerSection>
<endpoint address="1.2.3.4" />
<anotherEndpoint address="1.2.3.4" />
<sampleXmlElement address="1.2.3.4" />
</innerSection>
</configuration>
现在,如果您想将替换限制在某个部分,即<system.serviceModel>
您可以使用这样的 XPath:
<endpontAddresses xdt:Locator="XPath(/configuration/system.serviceModel//*[@address='1.2.3.4'])" xdt:Transform="SetAttributes(address)" address="4.3.2.1" />
这将仅更新<system.serviceModel>
部分中的地址
<configuration>
<endpoint name="serviceA" address="1.2.3.4" />
<endpoint name="serviceB" address="1.2.3.4" />
<endpoint name="serviceC" address="1.2.3.4" />
<endpoint2 address="1.2.3.4" />
<endpoint3 address="1.2.3.4" />
<endpoint4 address="1.2.3.4" />
<innerSection>
<endpoint address="1.2.3.4" />
<anotherEndpoint address="1.2.3.4" />
<sampleXmlElement address="1.2.3.4" />
</innerSection>
<system.serviceModel>
<endpoint name="serviceB" address="1.2.3.4" />
<endpoint name="serviceC" address="1.2.3.4" />
<endpoint2 address="1.2.3.4" />
<innerSection>
<endpoint address="1.2.3.4" />
<anotherEndpoint address="1.2.3.4" />
<sampleXmlElement address="1.2.3.4" />
</innerSection>
</system.serviceModel>
</configuration>
试一试,选择最适合您需求的。
注意:这有一个限制,您需要指定包含 IP (1.2.3.4) 的属性的名称是什么,但我认为最好是明确的,而不是在这里发生魔法。如果您有许多属性名称,请重复
于 2012-04-02T16:09:53.937 回答