tipsy / spark-websocket

Chat application tutorial using Spark and WebSockets

spark-websocket

The source code for the WebSocket chat application at sparktutorials.github.io: https://sparktutorials.github.io/2015/11/08/spark-websocket-chat.html

spark-websocket's Issues

session.getRemote().sendString(String.valueOf( new JSONObject()

I get an error of new JSONObject()
Error:
Constructor JSONObject in class JSONObject can not be applied to given type: Required Map<String,Object>

How to solve this error

compile fails

Maven targets Java 1.5 by default, so this example that uses features of Java 1.8 is not going to compile. Did you have some settings in your ~/.m2/settings.xml file that were not captured in this repo?

$ mvn compile 
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building sparksocket 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ sparksocket ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 3 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ sparksocket ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 2 source files to /Users/cswarth/Development/spark-websocket/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /Users/cswarth/Development/spark-websocket/src/main/java/Chat.java:[10,63] diamond operator is not supported in -source 1.5
  (use -source 7 or higher to enable diamond operator)
[ERROR] /Users/cswarth/Development/spark-websocket/src/main/java/Chat.java:[21,59] method references are not supported in -source 1.5
  (use -source 8 or higher to enable method references)
[ERROR] /Users/cswarth/Development/spark-websocket/src/main/java/Chat.java:[21,83] lambda expressions are not supported in -source 1.5
  (use -source 8 or higher to enable lambda expressions)
[INFO] 3 errors