./blade/src
./blade/src/main
./blade/src/main/java
./blade/src/main/java/hello
./blade/src/main/java/hello/Application.java
./blade/src/main/java/hello/DbConfig.java
./blade/src/main/java/hello/model
./blade/src/main/java/hello/model/Message.java
./blade/src/main/java/hello/model/World.java
./blade/src/main/resources
./blade/src/main/resources/app.properties