From e51834c899ff20781295410961934eb06239385c Mon Sep 17 00:00:00 2001
From: Kamal Wickramanayake <kamal@inbox.lk>
Date: Sat, 16 May 2026 21:18:32 +0530
Subject: Added spring-boot sample applications

---
 spring-boot/02-structure/.gitignore                  |  1 +
 spring-boot/02-structure/README                      |  1 +
 spring-boot/02-structure/pom.xml                     | 15 +++++++++++++++
 .../main/java/com/example/spring/Application.java    | 20 ++++++++++++++++++++
 .../com/example/spring/hello/HelloController.java    | 19 +++++++++++++++++++
 .../src/main/resources/application.properties        | 10 ++++++++++
 .../resources/config/application-default.properties  |  1 +
 .../main/resources/config/application-dev.properties |  1 +
 .../config/application-production.properties         |  0
 9 files changed, 68 insertions(+)
 create mode 100644 spring-boot/02-structure/.gitignore
 create mode 100644 spring-boot/02-structure/README
 create mode 100644 spring-boot/02-structure/pom.xml
 create mode 100644 spring-boot/02-structure/src/main/java/com/example/spring/Application.java
 create mode 100644 spring-boot/02-structure/src/main/java/com/example/spring/hello/HelloController.java
 create mode 100644 spring-boot/02-structure/src/main/resources/application.properties
 create mode 100644 spring-boot/02-structure/src/main/resources/config/application-default.properties
 create mode 100644 spring-boot/02-structure/src/main/resources/config/application-dev.properties
 create mode 100644 spring-boot/02-structure/src/main/resources/config/application-production.properties

(limited to 'spring-boot/02-structure')

diff --git a/spring-boot/02-structure/.gitignore b/spring-boot/02-structure/.gitignore
new file mode 100644
index 0000000..eb5a316
--- /dev/null
+++ b/spring-boot/02-structure/.gitignore
@@ -0,0 +1 @@
+target
diff --git a/spring-boot/02-structure/README b/spring-boot/02-structure/README
new file mode 100644
index 0000000..bcbbb4f
--- /dev/null
+++ b/spring-boot/02-structure/README
@@ -0,0 +1 @@
+In the application.properties file, change the active profile to dev and run to see the difference.
diff --git a/spring-boot/02-structure/pom.xml b/spring-boot/02-structure/pom.xml
new file mode 100644
index 0000000..17e5390
--- /dev/null
+++ b/spring-boot/02-structure/pom.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>com.example.spring.boot</groupId>
+		<artifactId>base-config</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+		<relativePath>../00-config</relativePath>
+	</parent>
+
+	<artifactId>structure</artifactId>
+
+</project>
diff --git a/spring-boot/02-structure/src/main/java/com/example/spring/Application.java b/spring-boot/02-structure/src/main/java/com/example/spring/Application.java
new file mode 100644
index 0000000..c051033
--- /dev/null
+++ b/spring-boot/02-structure/src/main/java/com/example/spring/Application.java
@@ -0,0 +1,20 @@
+package com.example.spring;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * @SpringBootApplication - Indicates a configuration class that declares one or
+ *                        more @Bean methods and also triggers
+ *                        auto-configuration and component scanning. This is a
+ *                        convenience annotation that is equivalent to
+ *                        declaring @Configuration, @EnableAutoConfiguration
+ *                        and @ComponentScan.
+ */
+@SpringBootApplication
+public class Application {
+
+	public static void main(String[] args) throws Exception {
+		SpringApplication.run(Application.class, args);
+	}
+}
\ No newline at end of file
diff --git a/spring-boot/02-structure/src/main/java/com/example/spring/hello/HelloController.java b/spring-boot/02-structure/src/main/java/com/example/spring/hello/HelloController.java
new file mode 100644
index 0000000..ad89d9d
--- /dev/null
+++ b/spring-boot/02-structure/src/main/java/com/example/spring/hello/HelloController.java
@@ -0,0 +1,19 @@
+package com.example.spring.hello;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+public class HelloController {
+
+	@Value("${my.name}")
+	private String name;
+	
+	@RequestMapping("/")
+	@ResponseBody
+	String home() {
+		return "Hello " + name + "!";
+	}
+}
\ No newline at end of file
diff --git a/spring-boot/02-structure/src/main/resources/application.properties b/spring-boot/02-structure/src/main/resources/application.properties
new file mode 100644
index 0000000..480ea32
--- /dev/null
+++ b/spring-boot/02-structure/src/main/resources/application.properties
@@ -0,0 +1,10 @@
+# Possible locations of this file:
+# (Properties defined in locations higher in the list override those defined in lower locations)
+#
+#   A /config subdirectory of the current directory
+#   The current directory
+#   A classpath /config package
+#   The classpath root
+#
+
+#spring.profiles.active=dev
diff --git a/spring-boot/02-structure/src/main/resources/config/application-default.properties b/spring-boot/02-structure/src/main/resources/config/application-default.properties
new file mode 100644
index 0000000..372ce47
--- /dev/null
+++ b/spring-boot/02-structure/src/main/resources/config/application-default.properties
@@ -0,0 +1 @@
+my.name=ABC
diff --git a/spring-boot/02-structure/src/main/resources/config/application-dev.properties b/spring-boot/02-structure/src/main/resources/config/application-dev.properties
new file mode 100644
index 0000000..436a73c
--- /dev/null
+++ b/spring-boot/02-structure/src/main/resources/config/application-dev.properties
@@ -0,0 +1 @@
+my.name=ABC DEV!
diff --git a/spring-boot/02-structure/src/main/resources/config/application-production.properties b/spring-boot/02-structure/src/main/resources/config/application-production.properties
new file mode 100644
index 0000000..e69de29
-- 
cgit v1.2.3