When func.exe is run from VS, it suggests "For detailed output, run func with --verbose flag."
问题描述
在本地调式Azure Function时候，默认输出的日志都是比较简洁的。如果需要详细的日志输出，可以在启动func命令中添加--verbose参数。那如何来添加呢？
日志输出对比：
| 开启前日志 | 开启后日志 |
Hosting environment: Production Content root path: /home/pont/projects/fibre-collective/packages/certification Now listening on: http://0.0.0.0:7071 Application started. Press Ctrl+C to shut down. Value cannot be null. (Parameter 'provider') |
Azure Functions Core Tools (3.0.2358 Commit hash: d6d66f19ea30fda5fbfe068fc22bc126f0a74168) Function Runtime Version: 3.0.13159.0 [5/19/2020 12:09:26 PM] FUNCTIONS_WORKER_RUNTIME set to node. Skipping WorkerConfig for language:python [5/19/2020 12:09:26 PM] FUNCTIONS_WORKER_RUNTIME set to node. Skipping WorkerConfig for language:java [5/19/2020 12:09:26 PM] FUNCTIONS_WORKER_RUNTIME set to node. Skipping WorkerConfig for language:powershell [5/19/2020 12:09:26 PM] Building host: startup suppressed: 'False', configuration suppressed: 'False', startup operation id: '190e8a62-6b3e-48f1-83d1-a3ede0bce239' [5/19/2020 12:09:26 PM] Reading host configuration file '/home/pont/projects/fibre-collective/packages/certification/host.json' [5/19/2020 12:09:26 PM] Host configuration file read: [5/19/2020 12:09:26 PM] { [5/19/2020 12:09:26 PM] "version": "2.0", [5/19/2020 12:09:26 PM] "logging": { [5/19/2020 12:09:26 PM] "applicationInsights": { [5/19/2020 12:09:26 PM] "samplingExcludedTypes": "Request", [5/19/2020 12:09:26 PM] "samplingSettings": { [5/19/2020 12:09:26 PM] "isEnabled": true [5/19/2020 12:09:26 PM] } [5/19/2020 12:09:26 PM] } [5/19/2020 12:09:26 PM] }, [5/19/2020 12:09:26 PM] "extensionBundle": { [5/19/2020 12:09:26 PM] "id": "Microsoft.Azure.Functions.ExtensionBundle", [5/19/2020 12:09:26 PM] "version": "[1.*, 2.0.0)" [5/19/2020 12:09:26 PM] } [5/19/2020 12:09:26 PM] } [5/19/2020 12:09:26 PM] Reading functions metadata [5/19/2020 12:09:26 PM] 1 functions found [5/19/2020 12:09:26 PM] Looking for extension bundle Microsoft.Azure.Functions.ExtensionBundle at /tmp/Functions/ExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle [5/19/2020 12:09:26 PM] Fetching information on versions of extension bundle Microsoft.Azure.Functions.ExtensionBundle available on https://functionscdn.azureedge.net/public/ExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/index.json [5/19/2020 12:09:27 PM] Downloading extension bundle from https://functionscdn.azureedge.net/public/ExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/1.1.1/Microsoft.Azure.Functions.ExtensionBundle.1.1.1.zip to /tmp/d87a8cf9-a864-42f0-a891-b7e41a7d103d/Microsoft.Azure.Functions.ExtensionBundle.1.1.1.zip Hosting environment: Production Content root path: /home/pont/projects/fibre-collective/packages/certification Now listening on: http://0.0.0.0:7071 Application started. Press Ctrl+C to shut down. [5/19/2020 12:11:22 PM] Executing HTTP request: { [5/19/2020 12:11:22 PM] "requestId": "90571ec9-f3f7-4606-b012-62097466c9a3", [5/19/2020 12:11:22 PM] "method": "GET", [5/19/2020 12:11:22 PM] "uri": "/" [5/19/2020 12:11:22 PM] } System.ArgumentNullException: Value cannot be null. (Parameter 'provider') at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) at Azure.Functions.Cli.Actions.HostActions.StartHostAction.RunAsync() in D:\a\1\s\src\Azure.Functions.Cli\Actions\HostActions\StartHostAction.cs:line 252 at Azure.Functions.Cli.ConsoleApp.RunAsync[T](String[] args, IContainer container) in D:\a\1\s\src\Azure.Functions.Cli\ConsoleApp.cs:line 66 Application is shutting down... [5/19/2020 12:11:45 PM] Stopping host... [5/19/2020 12:11:45 PM] Host shutdown completed. |
开启方式
方式一：在VS Code中修改.vscode\launch.json文件中的启动命令
默认通过VS Code创建一个Java Azure Function的文件目录结构为：
PS C:\Function> tree /f Folder PATH listing for volume OSDisk Volume serial number is 4A75-5D11 C:. │ .classpath │ .gitignore │ .project │ host.json │ local.settings.json │ pom.xml │ ├───.settings │ org.eclipse.core.resources.prefs │ org.eclipse.jdt.apt.core.prefs │ org.eclipse.jdt.core.prefs │ org.eclipse.m2e.core.prefs │ ├───.vscode │ extensions.json │ launch.json │ settings.json │ tasks.json │ ├───src │ ├───main │ │ └───java │ │ └───com │ │ └───function │ │ Function.java │ │ │ └───test │ └───java │ └───com │ └───function │ FunctionTest.java │ HttpResponseMessageMock.java
在launch.json文件中，添加启动参数 --verbose
{ "version": "0.2.0", "configurations": [ { "name": "Attach to Java Functions", "type": "java", "request": "attach", "hostName": "127.0.0.1", "port": 5005, "preLaunchTask": "func: host start --verbose" } ] }
点击F5，从VS Code中启动Azure Function，根据提示，在tasks.json也需要添加--verbose参数
{ "version": "2.0.0", "tasks": [ { "type": "func", "command": "host start --verbose", "problemMatcher": "$func-java-watch", "isBackground": true, "options": { "cwd": "${workspaceFolder}/target/azure-functions/myFunction-0115" }, "dependsOn": "package" }, { "label": "package", "command": "mvn clean package", "type": "shell", "group": { "kind": "build", "isDefault": true } } ] }
方式二：直接通过命令行启动Azure Funciton，使用完整命令： func host --
verbose PS C:\Function> func start --verbose
效果展示：
参考资料：
Value cannot be null. (Parameter 'provider'): https://github.com/Azure/azure-functions-core-tools/issues/2232
在 Azure 中使用 Visual Studio Code 创建 Java 函数: https://docs.azure.cn/zh-cn/azure-functions/create-first-function-vs-code-java
