What is wrong with my web apps? They run on my system but not on Azure.

Mike Dodaro 1

I've deployed 4-5 simple web apps to Azure Web Apps and to Azure Spring Cloud. They work on my system localhost:8080 but they fail on Azure. They show as running but return 404 when I navigate to listed url.

The code for the the current example is here: https://github.com/MikeDodaroZen/time-demo

You can: git clone https://github.com/MikeDodaroZen/time-demo.git

Try building the jar or war file with Maven
mvn clean package
Then run the app: java -jar target/time-demo-0.0.1.jar
Test on localhost:8080

Then deploy the jar or war to Azure Web Apps and see if you can get it to run.

SnehaAgrawal-MSFT 18,361 Reputation points

2021-09-27T18:04:55.077+00:00

Thanks for asking question! Could you confirm if you have Config and deploy the app to Azure Spring Cloud and to Azure App Service. Suggest you to follow the steps outlined in below documents.

Quickstart: Create a Java app on Azure App Service

Quickstart: Deploy your first Azure Spring Cloud application

Also check this article might be helpful.

You can use Maven Plugin for Azure App Service to deploy both .jar and .war files. Additionally, you can deploy your WAR, JAR, or EAR package to App Service to run their Java web app using the Azure CLI, PowerShell, or the Kudu publish API.
More information can be found at Deploy WAR/JAR/EAR packages

Also its recommended not to deploy your .war or .jar using FTP. The FTP tool is designed to upload startup scripts, dependencies, or other runtime files. It is not the optimal choice for deploying web apps.
Check this link : https://learn.microsoft.com/en-us/azure/app-service/deploy-continuous-deployment?tabs=github

let us know.
Mike Dodaro 1 Reputation point

2021-09-27T20:31:37.227+00:00

Your example runs on Azure. I matched my pom.xml file to yours, but my app fails to run:

PS C:\webProjects\time-demo\time-demo> ./mvnw com.microsoft.azure:azure-webapp-maven-plugin:1.14.0:config

[INFO] Scanning for projects...
[INFO]
[INFO] -----------------------< com.example:time-demo >------------------------
[INFO] Building time-demo 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- azure-webapp-maven-plugin:1.14.0:config (default-cli) @ time-demo ---
[WARNING] The POM for com.microsoft.azure.applicationinsights.v2015_05_01:azure-mgmt-insights:jar:1.0.0-beta is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.525 s
[INFO] Finished at: 2021-09-27T13:25:44-07:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.microsoft.azure:azure-webapp-maven-plugin:1.14.0:config (default-cli) on project time-demo:
Mike Dodaro 1 Reputation point

2021-09-28T00:55:00.717+00:00

I got my app to run by modifying the example code here: https://spring.io/guides/gs/spring-boot-for-azure/

But, I'd like to understand what is wrong with my original app. It builds without errors, and it runs on my system, but it doesn't successfully deploy to Azure. The portal shows it as running, but it throws an exception when I navigate to the listed URL.

The problem with apps that I've created with springinitizr (https://start.spring.io/) is that this command doesn't work. I've tried two versions:
mvn com.microsoft.azure:azure-webapp-maven-plugin:1.14.0:config
mvn com.microsoft.azure:azure-webapp-maven-plugin:1.12.0:config