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plantuml / plantuml-server

PlantUML Online Server
https://plantuml.com/
GNU General Public License v3.0
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PNG preview not working #309

Closed rednyte closed 11 months ago

rednyte commented 11 months ago

Describe the bug After installing the plantuml-jsp-server v1.2023.10 war with tomcat, running and loading the default page, the PNG preview does not load. Directly going to the png link does not work either. This also doesn't work for the PDF preview. The ascii art and svg work. This was also the case with v1.2023.8. It is running on AlmaLinux 9.2, with JDK 11.0.20, tomcat 10.1.10, and graphviz 2.44.0-25.

To Reproduce Load the default page.

Expected behavior I expect to see the default Bob and Alice example (Bob -> Alice : hello)

Desktop (please complete the following information):

HeinrichAD commented 11 months ago

I tried to reproduce your problem but I can't get it. It's always working for me :sweat_smile:

What I did:

  1. Download plantuml-jsp-v1.2023.10.war from the release page
  2. rename plantuml-jsp-v1.2023.10.war to plantuml.war
  3. copy plantuml.war to my local tomcat server (w.r.t. the context path plantuml)
  4. open my local tomcat instance with the context path /plantuml inside my browser: http://localhost:8080/plantuml
  5. see PlantUML Server working happily

I also tested the Tomcat Dockerfile image which also uses the plantuml-jsp-v1.2023.10.war file. I couldn't find any problems there either.

Could you please check your tomcat setup. If the issue still is the same please provide us with more information. A detailed guide how to reproduce the error would also be great.

rednyte commented 11 months ago

This was indeed an issue with tomcat. I guess I had deleted my temp folder where my PID was being stored and it didn't automatically recreate it. Once I created the folder all was well. Thank you!