CannotLoadBeanClassException [Débutant(e)] [Résolu]

[amine_en_france]

Bonjour,

Je débute en spring.

Je définis mon premier bean dans un fichier application-context.xml

Code :

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
	<bean id="user" class="pack.factory.User">
		<property name="firstName" value="Frédéric" />
		<property name="lastName" value="Chopin" />
	</bean>
</beans>

Ensuite dans une méthode main

Code :

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package pack;
 
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
 
public class Test {
 
	public static void main(String... strings) {
 
		ApplicationContext context = new FileSystemXmlApplicationContext(
				"application-context.xml");
 
	}
 
}

Et j'obtiens l'erreur qui suit :

Code :

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Exception in thread "main" org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [pack.factory.User] for bean with name 'user' defined in file [C:\Amine\DEV\WorkSpace\Spring-Design-Pattern\Spring-Factory\application-context.xml]; nested exception is java.lang.ClassNotFoundException: pack.factory.User
	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1141)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:524)
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1177)
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:758)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:422)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
	at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:140)
	at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:84)
	at pack.Test.main(Test.java:10)
Caused by: java.lang.ClassNotFoundException: pack.factory.User
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.springframework.util.ClassUtils.forName(ClassUtils.java:211)
	at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:385)
	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1138)
	... 9 more

Pour faire simple, je ne comprends pas pourquoi il cherche le bean que je lui demande de créer (Si j'ai bien compris ce que je fais :$)

[superviny]

Donc un bean c'est simplement une class qui a des "ascensceurs", on peut aussi utiliser le terme getter et setter...

Donc tu lui demandes en effet de créé un bean qui s'appellera "user" et qui sera de type classe "User" contenu dans le package "pack.factory"...

A toi de définir la class...

Style:

package pack.factory;

public Class User
{
private String firstName;
private String lastName;

public String getFirstName() {
return firstName;
}

public String getLastName() {
return lastName;
}

public void setFirstName(String firstname) {
this.firstName=firstname;
}

public void setLastName(String lastname) {
this.lastName=lastname
}
}