java.io.FileNotFoundException: class path resource cannot be resolved to URL ...

[zhyr]

Hi,

I've got project Web1 with -config.xml file:

<bean id="statisticResource"  class="org.springframework.core.io.FileSystemResource">
         <constructor-arg value="file-in-myjar.xml"/>
    </bean>

file-in-myjar.xml - another -config.xml file whithin jar whithin Web1's lib directory:

Web1

|-WEB-INF
|-config.xml

|-lib

|-myjar.jar

|-file-in-myjar.xml

But - I've got error:
java.io.FileNotFoundException: class path resource [file-in-myjar.xml]
cannot be resolved to URL because it does not exist

Thank you.

[pgrimard]

Try specifying the value as classpath:file-in-myjar.xml if it's in the root of the jar. If it's in a package, then try classpath:some/resource/path/file-in-myjar.xml where some/resource/path would be the package some.resource.path. You'll also want to set the class of the bean to "org.springframework.core.io.ClassPathResource " instead.

[zhyr]

I've corrected structure in first post.
And done as you advised - file-in-myjar.xml is directly in myjar.jar:

<bean id="statisticResource"  class="org.springframework.core.io.FileSystemResource">
         <constructor-arg value="classpath:file-in-myjar.xml"/>
    </bean>

New error:
file:/C:/Servers/glassfish/domains/domain1/config/classpath:file-in-myjar.xml

[pgrimard]

You need to change the bean class to "org.springframework.core.io.ClassPathResource "

[zhyr]

<bean id="statisticResource"  class="org.springframework.core.io.ClassPathResource">
         <constructor-arg value="classpath:file-in-myjar.xml"/>
    </bean>

:-(
java.io.FileNotFoundException: class path resource [classpath:file-in-myjar.xml] cannot be resolved to URL because it does not exist

[pgrimard]

I just read the documentation again and ClassPathResource won't work for a resource that's in a jar file. It does say though that you can use org.springframework.core.io.UrlResource as the bean type. Leave the constructor-arg value as classpath:file-in-myjar.xml too.

[zhyr]

Thank you very much! It helped.

[pgrimard]

You might actually need to specify the value as classpath*:file-in-myjar.xml.

[rj.spring]

Hi I have a similar problem here is my spring configuration :

<bean id="statisticResource" class="org.springframework.core.io.UrlResource">
<constructor-arg value="classpath:/hip/HipDataLoad.xsd"/>
</bean>

But I get this error message :

Exception in thread "main" org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'rsloader' defined in class path resource [spring-app-resource.xml]: Cannot resolve reference to bean 'statisticResource' while setting bean property 'urlResource'; nested exception is org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'statisticResource' defined in class path resource [spring-app-resource.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationExcepti on: Could not instantiate bean class [org.springframework.core.io.UrlResource]: Constructor threw exception; nested exception is java.net.MalformedURLException: unknown protocol: classpath
Caused by: org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'statisticResource' defined in class path resource [spring-app-resource.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationExcepti on: Could not instantiate bean class [org.springframework.core.io.UrlResource]: Constructor threw exception; nested exception is java.net.MalformedURLException: unknown protocol: classpath
Caused by: org.springframework.beans.BeanInstantiationExcepti on: Could not instantiate bean class [org.springframework.core.io.UrlResource]: Constructor threw exception; nested exception is java.net.MalformedURLException: unknown protocol: classpath
Caused by: java.net.MalformedURLException: unknown protocol: classpath
at java.net.URL.<init>(URL.java:574)
at java.net.URL.<init>(URL.java:464)
at java.net.URL.<init>(URL.java:413)
at org.springframework.core.io.UrlResource.<init>(Url Resource.java:69)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Construc tor.java:513)
at org.springframework.beans.BeanUtils.instantiateCla ss(BeanUtils.java:85)
at org.springframework.beans.factory.support.SimpleIn stantiationStrategy.instantiate(SimpleInstantiatio nStrategy.java:87)
at org.springframework.beans.factory.support.Construc torResolver.autowireConstructor(ConstructorResolve r.java:170)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.autowireConstructor(Abs tractAutowireCapableBeanFactory.java:773)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBeanInstance(Abst ractAutowireCapableBeanFactory.java:716)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:386)
at org.springframework.beans.factory.support.Abstract BeanFactory$1.getObject(AbstractBeanFactory.java:2 51)
at org.springframework.beans.factory.support.DefaultS ingletonBeanRegistry.getSingleton(DefaultSingleton BeanRegistry.java:144)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:248)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:160)
at org.springframework.beans.factory.support.BeanDefi nitionValueResolver.resolveReference(BeanDefinitio nValueResolver.java:261)
at org.springframework.beans.factory.support.BeanDefi nitionValueResolver.resolveValueIfNecessary(BeanDe finitionValueResolver.java:109)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.applyPropertyValues(Abs tractAutowireCapableBeanFactory.java:1073)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.populateBean(AbstractAu towireCapableBeanFactory.java:835)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:423)
at org.springframework.beans.factory.support.Abstract BeanFactory$1.getObject(AbstractBeanFactory.java:2 51)
at org.springframework.beans.factory.support.DefaultS ingletonBeanRegistry.getSingleton(DefaultSingleton BeanRegistry.java:144)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:248)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:160)
at org.springframework.beans.factory.support.DefaultL istableBeanFactory.preInstantiateSingletons(Defaul tListableBeanFactory.java:279)
at org.springframework.context.support.AbstractApplic ationContext.refresh(AbstractApplicationContext.ja va:360)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:91)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:75)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:65)
at com.beans.ResourceLoaderTest.main(ResourceLoaderTe st.java:47)

Appreciate your help. Thanks

[dumindae]

You need to use a url for org.springframework.core.io.UrlResource.Check the javadoc of the org.springframework.core.io.UrlResource

Resource implementation for java.net.URL locators. Obviously supports resolution as URL, and also as File in case of the "file:" protocol.

You need to use the org.springframework.core.io.ClassPathResource

Resource implementation for class path resources. Uses either a given ClassLoader or a given Class for loading resources.

Supports resolution as java.io.File if the class path resource resides in the file system, but not for resources in a JAR. Always supports resolution as URL.