Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException-CodePudding

Can anyone tell me what is the error in this program and how to correct the error? I have given proper annotation and still getting errors. I need help fixing this error I get when trying to deploy . Why isn't the Car bean being defined? Am I missing something in my web.xml or do I have to map the customerService somehow? I am using annotations for mapping. any help would be much appreciated. Here is the error log entry from the localhost log:

App.java

package om.venkatesh.omshakthi;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App 
{
    public static void main( String[] args )
    {
        ApplicationContext context=new ClassPathXmlApplicationContext("Spring.xml");
        
        Car obj=(Car)context.getBean("car");
        obj.drive();
    }
}

Car.java

package om.venkatesh.omshakthi;

import org.springframework.stereotype.Component;
@Component
public class Car implements Vehicle{
    
    public void drive()
    {
        System.out.println("Car");
        
    }

}

Vehicle.java

package om.venkatesh.omshakthi;

public interface Vehicle {
     void drive();

}

Spring.xml file

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context = "http://www.springframework.org/schema/context"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context-4.0.xsd">
   <bean id="tyre" class="om.venkatesh.omshakthi.Tyre">
   
   </bean>
</beans>

CodePudding user response：

Spring.xml has no bean with id "car" (although there is one for "tyre")

CodePudding user response：

You need to define your bean in XML

<bean id="car" class="om.venkatesh.omshakthi.Car">

CodePudding user response：

You don`t need @Component annotation when you use ClassPathXmlApplicationContext. Just define a Car bean in your xml:

<bean id="car" class="om.venkatesh.omshakthi.Car">

CodePudding user response：

Without xml you can do it like this:

Create config class:

@Configuration
public class AppConfig {

    @Bean
    public Car car() {
        return new Car();
    }
}

Main class:

public class App {
public static void main(String[] args) {
    AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
    ctx.register(AppConfig.class);
    ctx.refresh();

    Car car = (Car) ctx.getBean("car");
    car.drive();
    }
}