Question

I am messing around and trying out some sample spring code. In this instance i am trying to create a string and use it inside another bean. the other bean sets the string in a class and then when i call that class hopefully it should print out the message. however, i get an error message. Please could someone suggest what might be wrong here?

public static void main(String[] args) {
    ApplicationContext applicationContext = new ClassPathXmlApplicationContext("MyConfig.xml");

SetterMessage message = (SetterMessage) applicationContext.getBean("setStringFromBean");
System.out.println(message.getMessage()); 
}

public class SetterMessage {

    private String message = null;
    /**
     * Gets message.
     */
    public String getMessage() {
        return message;
    }

    /**
     * Sets message.
     */
    public void setMessage(String message) {
        this.message = message;
    }
}

<bean id="createString" class="java.lang.String">
<constructor-arg value="Hello from a bean"</constructor-arg>
</bean>

<bean id="setStringFromBean" class="SetterMessage">
    <property name="message" ref="createString" />
</bean>

the error is

Oct 23, 2012 8:36:58 PM
org.springframework.context.support.AbstractApplicationContext
prepareRefresh INFO: Refreshing
org.springframework.context.support.ClassPathXmlApplicationContext@4447393f:
startup date [Tue Oct 23 20:36:58 BST 2012]; root of context hierarchy
Oct 23, 2012 8:36:58 PM
org.springframework.beans.factory.xml.XmlBeanDefinitionReader
loadBeanDefinitions INFO: Loading XML bean definitions from class path
resource [MyConfig.xml] Oct 23, 2012 8:36:58 PM
org.springframework.beans.factory.support.DefaultListableBeanFactory
preInstantiateSingletons INFO: Pre-instantiating singletons in
org.springframework.beans.factory.support.DefaultListableBeanFactory@643ae941:
defining beans [defaultMessage,constructorBean,setterMessage]; root of
factory hierarchy Exception in thread “main”
org.springframework.beans.factory.NoSuchBeanDefinitionException: No
bean named ‘setStringFromBean’ is defined at
org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:549)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1095)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:277)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1106)
at Main.main(Main.java:13)

Answer 1

I had an erroneous comment tag in the xml file and therfore it was not being parsed properly