I can't realize why server stops right after trying to be up in this application in spring boot

[Zobair Imran]

package com.cs.configclient;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication[
public class SpringConfigClientApplication {

public static void main(String[] args) {
SpringApplication.run(SpringConfigClientApplication.class, args);
}

}

Controller:

package com.cs.configclient.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import com.cs.configclient.db.DbSettings;

@RestController
public class GreetingController {

@Value("${my.greating: default value}")
private String greetingMessage;

@Value("some static message")
private String staticMessage;

@Value("${my.list.values}")
private List<String> listValues;

@Autowired
private DbSettings dbSettings;

@Autowired
private Environment env;

public GreetingController() {

}

@GetMapping("/greeting")
public String greeting() {

return "my.greeting: " + greetingMessage + "db.connection: " + dbSettings.getConnection();

}

@GetMapping("/envdetails")
public String envDetails() {
return env.toString();

}

}

DBSettings:

package com.cs.configclient.db;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;

@Configuration
@ConfigurationProperties("db")
public class DbSettings {

private String connection;
private String host;
private int port;

public String getConnection() { return connection; }

public void setConnection(String connection) { this.connection = connection; }

public String getHost() { return host; }

public void setHost(String host) { this.host = host; }

public int getPort() { return port; }

public void setPort(int port) { this.port = port; }

}

application.yml:

app:
 name: My app
 description: Welcome to ${app.name}  

my:
 greeting: Hello World
 list:
   values: One, Two, Three
   
management.endpoints.web.exposure.include: "*"
     
spring.cloud.config.uri: http://localhost:8888

And 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>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.cs.config-client</groupId>
<artifactId>jetbrains-spring-config-client</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>jetbrains-spring-config-client</name>
<description>Spring-cloud-Config</description>

<properties>
<java.version>14</java.version>
<spring-cloud.version>Hoxton.SR4</spring-cloud.version>
</properties>

<dependencies>
<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
     </dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>

<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

</project>

AND IT SAYS In the Output console -

Fetching config from server at : http://localhost:8888
Connect Timeout Exception on Url - http://localhost:8888. Will be trying the next url if available
Connection refused; nested exception is java.net.ConnectException: Connection refused
No active profile set, falling back to default profiles: default
BeanFactory id=df05c0da-c19c-37a2-80fc-f40bd3bded3e
Started JetbrainsSpringConfigClientApplication in 1.993 seconds (JVM running for 2.913

[Stephan van Hulst]

Looks to me like you aren't running a Config Server. See the documentations here: https://cloud.spring.io/spring-cloud-config/reference/html/#_spring_cloud_config_server

[Zobair Imran]

Well! Thanks Hulst! I'll check it !