Map Injection - Annotation

[SpringingSpringles]

I am trying to autowire java.util.Map<String, String> with no success. I might be doing something silly, please help.

JDK: 1.5
Spring: 2.5.5
Server: Tomcat 5.5

	<util:map id="mymap" value-type="java.lang.String">
		<entry value="Upload" key="${UPLOADPATH}" />
		<entry value="Preview Path" key="${RPTPREVIEWUPLOADPATH}" />
	</util:map>

@Controller
public class ExplorerController {

	@Autowired
	@Qualifier (value="mymap")
	private Map<String, String> myMap;
}

[2009-03-19 16:51:13,561 ERROR org.springframework.web.servlet.DispatcherServlet:290] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'explorerController': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private java.util.Map com.citi.cate.gmrs.web.ExplorerController.dirMap; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [java.lang.String] found for dependency [map with value type java.lang.String]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=explorerDirs)}
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:402)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:316)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:282)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:126)
	at javax.servlet.GenericServlet.init(GenericServlet.java:212)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)

[mirror303]

Try @Resource instead of @Autowired, it behaves slightly different and will allow the injection

[SpringingSpringles]

Try @Resource instead of @Autowired, it behaves slightly different and will allow the injection

Infact @Resource didn't work first. I had to change the instance name to something else and it worked. @Autowired didn't work either way.

Original

@Controller
public class ExplorerController {

       @Resource
	private Map<String, String> dirMap;
}

Modified

@Controller
public class ExplorerController {

       @Resource
	private Map<String, String> explorerDirs;
}

<util:map id="explorerDirs" key-type="java.lang.String"
value-type="java.lang.String">
<entry value="Upload" key="C:\logs" />
</util:map>

Is this how it is supposed to be or a bug?

[wims.tijd]

@Resource(name="my.resource.as.in.ctx")

[Rober2D2]

The map in the configuration is not qualified as "mymap". Try the following:

	<util:map id="mymap" value-type="java.lang.String">
		<qualifier value="mymap"/>
		<entry value="Upload" key="${UPLOADPATH}" />
		<entry value="Preview Path" key="${RPTPREVIEWUPLOADPATH}" />
	</util:map>