我需要在多个WCF服务的web.config文件中切换IP地址。使用web.config转换,除了通过xpath指定每个地址外,是否存在创建搜索和替换语句的方法。例如,将所有1.2.3.4实例的IP地址切换为4.3.2.1。
假设你的Web.config文件像这样(一个简化的场景,但XPath中的//在任何地方都适用):
<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>
<?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将在整个Web.config中查找每个元素,并检查给定元素是否具有地址属性,其值等于“1.2.3.4”。 如果您需要更通用的内容,请尝试以下内容:
<?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:*),并检查它是否具有地址属性,其值等于“1.2.3.4”。 因此,对于像这样的文件,它将起作用:
<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>
<system.serviceModel>
,则可以使用以下XPath: <endpontAddresses xdt:Locator="XPath(/configuration/system.serviceModel//*[@address='1.2.3.4'])" xdt:Transform="SetAttributes(address)" address="4.3.2.1" />
<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>
请尝试这些选项并选择最适合您需求的选项。
注意:此方法有一个限制,您需要指定包含IP地址(1.2.3.4)的属性名称,但我认为明确指出比让魔法发生更好。如果您有多个属性名称,请重复指定。