swagger-api/swagger-codegen

Spring MVC - mvn package leads to "no main manifest attribute"

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#2,345 opened on Mar 9, 2016

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Issue: BugServer: Springhelp wanted

Description

Hi,

I have a Spring MVC server generated using Swagger.. And normally, to start it we use mvn jetty:run.. But I'd like to create a JAR file that I can launch afterwards.. So, to do that, I use the command mvn package and it creates correctly the JAR file in the target folder.

But when I try to start it using the command java -jar swagger-spring-mvc-server-1.0.0.jar, I get this error: no main manifest attribute, in swagger-spring-mvc-server-1.0.0.jar.

If I'm right, this problem happens because the Main.class is missing.. But I didn't find any main classes in the generated code.

Does anyone knows if I'm doing something wrong?? Or if there's another way to get the JAR file? Thanks

Contributor guide

Tech stack
javaspringrest api
Domain
backend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
JavaMavenSpring MVC
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Investigate how to configure the Maven JAR plugin to include a main class in the generated code. Consider using Spring Boot's `spring boot maven plugin` to create an executable JAR. Look at the `pom.xml` generated by Swagger codegen to see if there is a main class or if one needs to be added manually.