Menu
I am trying out a simple spring boot application it always shuts down automatically
:: Spring Boot :: (v1.4.1.RELEASE)
2016-10-23 13:05:21.681 INFO 16532 --- [ main] com.example.RestBootApplication : No active profile set, falling back to default profiles: default
2016-10-23 13:05:21.766 INFO 16532 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@6e20b53a: startup date [Sun Oct 23 13:05:21 EDT 2016]; root of context hierarchy
2016-10-23 13:05:23.682 INFO 16532 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-10-23 13:05:23.704 INFO 16532 --- [ main] com.example.RestBootApplication : Started RestBootApplication in 2.632 seconds (JVM running for 5.168)
2016-10-23 13:05:23.705 INFO 16532 --- [ Thread-2] s.c.a.AnnotationConfigApplicationContext : Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@6e20b53a: startup date [Sun Oct 23 13:05:21 EDT 2016]; root of context hierarchy
2016-10-23 13:05:23.708 INFO 16532 --- [ Thread-2] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>rest-boot</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</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-web</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>
Main Class
@SpringBootApplication
public class RestBootApplication {
public static void main(String[] args) {
SpringApplication.run(RestBootApplication.class, args);
}
}
Controller
@Controller
public class HelloController {
@RequestMapping("/hello")
String helloWorld(){
return "helloWorld";
}
}
Trying to run in spring tool suite. it always stops after starting. I even added "spring-boot-starter-web" after looking at some stackoverflow questions, but still facing the issue.
Please can you someone point out the issue.
746
Fixing the Error The simple solution to fix our error would be to annotate our MainEntryPoint class with the @SpringBootApplication annotation. By using this annotation, we tell Spring Boot to auto-configure the necessary beans and register them in the context.
Use the static exit() method in the SpringApplication class for closing your spring boot application gracefully.
Spring Boot automatically configures your application based on the dependencies you have added to the project by using @EnableAutoConfiguration annotation. For example, if MySQL database is on your classpath, but you have not configured any database connection, then Spring Boot auto-configures an in-memory database.
To shut down the Spring Boot application, we simply call a POST method like this: In this call, the port represents the actuator port. 3. Close Application Context We can also call the close () method directly using the application context. Let's start with an example of creating a context and closing it:
When Spring Boot finds a CommandLineRunner bean in the application context, it will call its run () method after the application has started up and pass in the command-line arguments with which the application has been started. We can now start the application with a command-line parameter like this: java -jar application.jar --foo=bar
Spring Boot adds them for you. These are just a few examples of the automatic configuration Spring Boot provides. At the same time, Spring Boot does not get in your way. For example, if Thymeleaf is on your path, Spring Boot automatically adds a SpringTemplateEngineto your application context.
The spring-boot-starter-web dependency is a starter for building web apps, including RESTful applications, using Spring MVC.
In my case just adding following to pom file
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
Check what exit code you are getting.
If you get "Process finished with exit code 1" means an exception is being thrown. Thus you can put a try catch block around your SpringApplication.run() statement and print out the stack trace.
public static void main(String[] args) {
try {
SpringApplication.run(MyApplication.class, args);
} catch (Exception e) {
e.printStackTrace();
}
}
Example talen from: https://stackoverflow.com/a/59017774/9531109
42
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
