Directory structure
pom.xml
<?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>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.1.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>SpringBootApplicationProperties</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>SpringBootApplicationProperties</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.properties
sid=2
sname=jhon
sadd=pune
TestRunner
package com.example.demo.runner;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
@Component
public class TestRunner implements CommandLineRunner {
@Value("${sid}")
private Integer sid;
@Value("${sname}")
private String sname;
@Value("${sadd}")
private String sadd;
@Override
public String toString() {
return "TestRunner [sid=" + sid + ", sname=" + sname + ", sadd=" + sadd + "]";
}
@Override
public void run(String... args) throws Exception {
System.out.println(this.toString());
}
}
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