How to run chat example using Maven or Gradle?

[PhilipRoman]

I was looking for an alternative to the chat server instructions (https://tootallnate.github.io/Java-WebSocket/) mentioned in #937.

Apparently, running the examples used to be as simple as this:

ant
java -cp build/examples:dist/java_websocket.jar ChatServer
java -cp build/examples:dist/java_websocket.jar ChatClient

When I tried building it now using Maven or Gradle, the classes under src/main/example/ weren't being compiled so I had to manually javac them and then download SLF4J dependency jars.

Maybe there should be a simple build task so you can do, for example gradle example or mvn example to run the examples.

[marci4]

I like the idea with mvn example! :)

[dota17]

1、 update pom.xml line 166:
src/main
After pom.xml was changed, directly mvn clean install , it would fail with follow message:
[ERROR] Failed to execute goal biz.aQute.bnd:bnd-maven-plugin:4.3.1:bnd-process (default) on project Java-WebSocket: The default package '.' is not permitted by the Import-Package syntax.

2、 add package to the java of example :
mvn clean install , it was successful. And the classes ware in the dir of example:

Ex : dota17#15
This is just an example how I use it, I hope it can help you.

3、 Add the dependency of slf4j-api-1.7.25 in the libs:
/c/code/local/Java-WebSocket/libs
abc@desktop MINGW64 /c/code/local/Java-WebSocket/libs (exampleBuild)
$ ls -lrt
total 60
-rw-r--r-- 1 abc 197121 41203 2月 11 2020 slf4j-api-1.7.25.jar
-rw-r--r-- 1 abc 197121 15257 6月 28 16:11 slf4j-simple-1.7.25.jar

4、 We can run the example with java:
cd target/classes/

$ /c/code/local/Java-WebSocket/target/classes (exampleBuild)
java -Djava.ext.dirs=/c/code/local/Java-WebSocket/libs example.ChatServer

5、The return result :
ChatServer started on port: 8887
Server started!