IIS ASP.NET Core

安装ASP.NET Core Module (ANCM) for IIS

下载地址

https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/aspnet-core-module?view=aspnetcore-9.0

项目添加web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <location path="." inheritInChildApplications="false">
        <system.webServer>
            <handlers>
                <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
            </handlers>
            <aspNetCore processPath="dotnet"
                        arguments=".\XXX.dll"
                        stdoutLogEnabled="true"
                        stdoutLogFile=".\logs\stdout"
                        hostingModel="inprocess">
            <environmentVariables>
                <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Sit" />
            </environmentVariables>
            </aspNetCore>
        </system.webServer>
    </location>
</configuration>

参考

https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/web-config?view=aspnetcore-9.0

项目启动问题

项目启动的时候，请求Nacos，但Nacos本地是通过VPN访问的，导致启动失败。

原因：

解决：

直接编译问题

过去，我们一边开发项目一边部署在IIS，直接编译，IIS就会应用最新的dll，然后我们就可以通过附加进程的方式进行调试。

为什么asp.net core直接编译的时候，IIS却显示文件占用呢？

关于影子复制，见

https://www.cnblogs.com/skyler/articles/ShadowCopy.html

解决办法：
编译前，手动停止IIS应用程序池，编译后，再启动

这个过程可以自动化，给IDE添加编译事件
以下示例是copy编译后的文件到另一个文件夹

    <PropertyGroup>
      <IISAppPoolName>OrderManagement</IISAppPoolName>
       <AppUrl>http://localhost:8088/swagger</AppUrl>
    </PropertyGroup>

  <Target Name="PostBuild" AfterTargets="PostBuildEvent">
    <Exec Command="&quot;%systemroot%\system32\inetsrv\appcmd.exe&quot; stop apppool /apppool.name:&quot;$(IISAppPoolName)&quot;" />
    <Exec Command="xcopy &quot;$(TargetDir)*.*&quot; &quot;C:\Workspace\IIS\ordermanagement&quot; /Y /I /E /R" />
    <Exec Command="&quot;%systemroot%\system32\inetsrv\appcmd.exe&quot; start apppool /apppool.name:&quot;$(IISAppPoolName)&quot;" />
    <Exec Command="powershell.exe -NoProfile -ExecutionPolicy Bypass -Command &quot;Invoke-WebRequest -Uri '$(AppUrl)' -UseBasicParsing -TimeoutSec 10 -ErrorAction SilentlyContinue | Out-Null&quot;" />
  </Target>

如果不想copy，则需要在编译前停止app pool

    <PropertyGroup>
        <IISAppPoolName>OrderManagement</IISAppPoolName>
        <AppUrl>http://localhost:8088/swagger</AppUrl>
    </PropertyGroup>

    <Target Name="PreBuild" BeforeTargets="PreBuildEvent">
      <Exec Command="&quot;%systemroot%\system32\inetsrv\appcmd.exe&quot; stop apppool /apppool.name:&quot;$(IISAppPoolName)&quot;"/>
    </Target>

    <Target Name="PostBuild" AfterTargets="PostBuildEvent">
        <Exec Command="&quot;%systemroot%\system32\inetsrv\appcmd.exe&quot; start apppool /apppool.name:&quot;$(IISAppPoolName)&quot;"/>
        <Exec Command="powershell.exe -NoProfile -ExecutionPolicy Bypass -Command &quot;Invoke-WebRequest -Uri '$(AppUrl)' -UseBasicParsing -TimeoutSec 10 -ErrorAction SilentlyContinue | Out-Null&quot;"/>
    </Target>

但是，

有这个功夫，我还不如直接启动项目

柳暗花明

既然知道了ASP.NET的启动与“影复制”有关系，就顺带查一下

然后找到了

https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/advanced?view=aspnetcore-9.0#shadow-copy

这不就是我们想要的吗？

相关阅读： https://weblog.west-wind.com/posts/2022/Nov/07/Avoid-WebDeploy-Locking-Errors-to-IIS-with-Shadow-Copy-for-ASPNET-Core-Apps

加入配置

<?xml version="1.0" encoding="utf-8"?>

<configuration>
    <location path="." inheritInChildApplications="false">
        <system.webServer>
            <handlers>
                <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
            </handlers>
            <aspNetCore processPath="dotnet"
                        arguments=".\xxx.dll"
                        stdoutLogEnabled="true"
                        stdoutLogFile=".\logs\stdout"
                        hostingModel="inprocess">

                <handlerSettings>
                    <handlerSetting name="enableShadowCopy" value="true" />
                    <!-- Ensure that the IIS ApplicationPool identity has permission to this directory -->
                    <handlerSetting name="shadowCopyDirectory" value="../ShadowCopyDirectory/" />
                </handlerSettings>

                <environmentVariables>
                    <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Sit" />
                </environmentVariables>
            </aspNetCore>
        </system.webServer>
    </location>
</configuration>

编译，确实没有再提示文件占用了

附件进程调试

这下可以修改代码，编译，附加进程调试了吧？

附加进程的时候，有时候为w3wp进程并未启动，需要稍微等一下。附件进程后，你会发现，你只有请求了，app才会启动，而且，断点不会命中。

等第一次请求完了，再次附件进程，断点才会进。

我们需要配置让热热身

https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/advanced?view=aspnetcore-9.0#application-initialization-module

官方说通过修改IIS配置或者写入webconfig都可以

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <applicationInitialization doAppInitAfterRestart="true" />
    </system.webServer>
  </location>
</configuration>

经过我测试，发现好像并没有生效。

通过IIS配置，确实有效果。