您的位置:首页 > 移动开发

【Azure 应用服务】Azure Mobile App (NodeJS) 的服务端部署在App Service for Windows中出现404 Not Found

2022-01-24 21:31 1066 查看

全文标题:【Azure 应用服务】Azure Mobile App (NodeJS) 的服务端部署在App Service for Windows中出现404 Not Found -- The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.

问题描述

使用NodeJS的后端应用,开发一个Mobile App的服务端,手机端通过REST API来访问获取后端数据。在本地编译好后,通过npm start启动项目,访问效果如下:

但是,当把项目文件通过FTP,或者直接VS Code 部署到App Service for windows后,访问首页并不是mobile app的页面,而是默认的App Service页面,访问项目里面的API也是404错误?

 

问题解决

从访问默认URL和测试API为404的效果来看,这是NodeJS项目并没有启动。因为是App Service For Windows环境,非ASP.NET的项目都需要通过IIS启用对于的进程文件来执行代码。如NodeJS项目则会启动一个 node.exe 用于执行 js 文件。

 

所以第一步是进入到App Service的高级工具 (Kudu)站点中,查看以下图片中的两点:

1: node.exe 进程是否存在

2: node.exe 进程中所加载的js文件是否是正确的启动文件

如果缺少了Web.config文件,则以下面的内容来创建它:

<?xml version="1.0" encoding="utf-8"?>
<!--
This configuration file is required if iisnode is used to run node processes behind
IIS or IIS Express.  For more information, visit:

https://github.com/tjanczuk/iisnode/blob/master/src/samples/configuration/web.config
-->

<configuration>
<system.webServer>
<!-- Visit http://blogs.msdn.com/b/windowsazure/archive/2013/11/14/introduction-to-websockets-on-windows-azure-web-sites.aspx for more information on WebSocket support -->
<webSocket enabled="false" />
<handlers>
<!-- Indicates that the server.js file is a node.js site to be handled by the iisnode module -->
<add name="iisnode" path="app.js" verb="*" modules="iisnode"/>
</handlers>

<rewrite>
<rules>
<!-- Do not interfere with requests for node-inspector debugging -->
<rule name="NodeInspector" patternSyntax="ECMAScript" stopProcessing="true">
<match url="^app.js\/debug[\/]?" />
</rule>

<!-- First we consider whether the incoming URL matches a physical file in the /public folder -->
<rule name="StaticContent">
<action type="Rewrite" url="public{REQUEST_URI}"/>
</rule>

<!-- All other URLs are mapped to the node.js site entry point -->
<rule name="DynamicContent">
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="True"/>
</conditions>
<action type="Rewrite" url="app.js"/>
</rule>
</rules>
</rewrite>

<!-- 'bin' directory has no special meaning in node.js and apps can be placed in it -->
<security>
<requestFiltering>
<hiddenSegments>
<remove segment="bin"/>
</hiddenSegments>
</requestFiltering>
</security>

<!-- Make sure error responses are left untouched -->
<httpErrors existingResponse="PassThrough" />

<!--
You can control how Node is hosted within IIS using the following options:
* watchedFiles: semi-colon separated list of files that will be watched for changes to restart the server
* node_env: will be propagated to node as NODE_ENV environment variable
* debuggingEnabled - controls whether the built-in debugger is enabled
See https://github.com/tjanczuk/iisnode/blob/master/src/samples/configuration/web.config for a full list of options
-->
<!--<iisnode watchedFiles="web.config;*.js"/>-->
</system.webServer>
</configuration>

PS: handlers 和 rewrite 部分是必须的,其中 app.js 的名称可以根据实际项目中的启动文件而修改。

当web.config添加后,问题解决,再次访问效果为:

 

附录一:如果是遇见的其他错误,如 Module 缺少,则可以在 Logfiles中的 Application 文件夹中的 logging-errors.txt 中查看详细错误,如:

Mon Jan 24 2022 10:59:28 GMT+0000 (Greenwich Mean Time): Application has thrown an uncaught exception and is terminated:
Error: Cannot find module 'express'
Require stack:
- D:\home\site\wwwroot\index.js
- D:\Program Files (x86)\iisnode\interceptor.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:815:15)
at Function.Module._load (internal/modules/cjs/loader.js:667:27)
at Module.require (internal/modules/cjs/loader.js:887:19)
at require (internal/modules/cjs/helpers.js:74:18)
at Object.<anonymous> (D:\home\site\wwwroot\index.js:1:17)
at Module._compile (internal/modules/cjs/loader.js:999:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
at Module.load (internal/modules/cjs/loader.js:863:32)
at Function.Module._load (internal/modules/cjs/loader.js:708:14)
at Module.require (internal/modules/cjs/loader.js:887:19)
Mon Jan 24 2022 11:09:37 GMT+0000 (Greenwich Mean Time): Application has thrown an uncaught exception and is terminated:
Error: Cannot find module 'depd'
Require stack:
- D:\home\site\wwwroot\node_modules\body-parser\index.js
- D:\home\site\wwwroot\node_modules\express\lib\express.js
- D:\home\site\wwwroot\node_modules\express\index.js
- D:\home\site\wwwroot\index.js
- D:\Program Files (x86)\iisnode\interceptor.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:815:15)
at Function.Module._load (internal/modules/cjs/loader.js:667:27)
at Module.require (internal/modules/cjs/loader.js:887:19)
at require (internal/modules/cjs/helpers.js:74:18)
at Object.<anonymous> (D:\home\site\wwwroot\node_modules\body-parser\index.js:14:17)
at Module._compile (internal/modules/cjs/loader.js:999:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
at Module.load (internal/modules/cjs/loader.js:863:32)
at Function.Module._load (internal/modules/cjs/loader.js:708:14)
at Module.require (internal/modules/cjs/loader.js:887:19)
Mon Jan 24 2022 11:10:24 GMT+0000 (Greenwich Mean Time): Application has thrown an uncaught exception and is terminated:
Error: Cannot find module 'merge-descriptors'
Require stack:
- D:\home\site\wwwroot\node_modules\express\lib\express.js
- D:\home\site\wwwroot\node_modules\express\index.js
- D:\home\site\wwwroot\index.js
- D:\Program Files (x86)\iisnode\interceptor.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:815:15)
at Function.Module._load (internal/modules/cjs/loader.js:667:27)
at Module.require (internal/modules/cjs/loader.js:887:19)
at require (internal/modules/cjs/helpers.js:74:18)
at Object.<anonymous> (D:\home\site\wwwroot\node_modules\express\lib\express.js:17:13)
at Module._compile (internal/modules/cjs/loader.js:999:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
at Module.load (internal/modules/cjs/loader.js:863:32)
at Function.Module._load (internal/modules/cjs/loader.js:708:14)
at Module.require (internal/modules/cjs/loader.js:887:19)
Mon Jan 24 2022 11:11:35 GMT+0000 (Greenwich Mean Time): Application has thrown an uncaught exception and is terminated:
Error: Cannot find module 'finalhandler'
Require stack:
- D:\home\site\wwwroot\node_modules\express\lib\application.js
- D:\home\site\wwwroot\node_modules\express\lib\express.js
- D:\home\site\wwwroot\node_modules\express\index.js
- D:\home\site\wwwroot\index.js
- D:\Program Files (x86)\iisnode\interceptor.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:815:15)
at Function.Module._load (internal/modules/cjs/loader.js:667:27)
at Module.require (internal/modules/cjs/loader.js:887:19)
at require (internal/modules/cjs/helpers.js:74:18)
at Object.<anonymous> (D:\home\site\wwwroot\node_modules\express\lib\application.js:16:20)
at Module._compile (internal/modules/cjs/loader.js:999:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
at Module.load (internal/modules/cjs/loader.js:863:32)
at Function.Module._load (internal/modules/cjs/loader.js:708:14)
at Module.require (internal/modules/cjs/loader.js:887:19)

然后,直接从本地项目文件夹 node_modules 中的内容 上传到 App Service 中,即可解决 connot find module ‘ **** ’ 错误。

 

附录二:示例代码

下载地址:https://files.cnblogs.com/files/lulight/nodejs-express-azuermobileapp-web.confg.zip?t=1643031258

 

参考资料

Create a Node.js web app in Azure:https://docs.microsoft.com/en-us/azure/app-service/quickstart-nodejs?tabs=windows&pivots=development-environment-vscode

Node.js Hello World in App Service: https://github.com/Azure-Samples/nodejs-docs-hello-world

 

 

 

内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签: 
相关文章推荐