Java Spring app - HTTP Status 404 – Not Found

Question

Hi!

I have created this hello world app using Java 17 with Spring web.

https://github.com/KozinLatif/demo-1
https://demo-3.azurewebsites.net/

Tried to deploy it with App Service using GitHub:
Repository: demo-1
Branch: master
provider: GitHub Actions
Runtime stack: Java
Version: Java 17

Can you please help me understand why I keep getting "HTTP Status 404 – Not Found"? The app works fine when I run it at local.

Kind regards
Kozin Latif

Answer 1

KozinLatifAref-7783, Thanks for posting this question.

--To begin with, you may leverage App Service diagnostics from Azure Portal> Navigate to your App Service app in the Azure Portal. (Screenshot below)
-- In the left navigation, click on Diagnose and solve problems - Review - “Configuration and Management and “Availability and Performance” ||“Web App down” and “Web App Restarted” options.
(screenshot below)

--Review your POM.xml file. Validate/change the packaging type is “war” and spring-boot-starter-tomcat is set to “provided” and then test.

Just as a sample:

[<packaging>war</packaging>  
..  
<dependency>  
    <groupId>org.springframework.boot</groupId>  
    <artifactId>spring-boot-starter-tomcat</artifactId>  
    <scope>provided</scope><!-- this line must be present-->  
</dependency>][1]  

( screenshot )

I see the following from backend logs- Please verify correctness of the URL.

Please let us know how it goes, I'll follow-up further. Thanks for your patience and collaboration!