Maven 构建SSM架构是出现的异常:class path resource [mapper/*.xml] cannot be opened because it does not exist

异常信息: 

[INFO] Root WebApplicationContext: initialization started
[WARNING] Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloService': Unsatisfied dependency expressed through field 'dao'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloDao' defined in file [D:\DevelopmentProject\IdeaProjects\Supermarketmanagementsystem\target\classes\dao\HelloDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring.cfg.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
[ERROR] Context initialization failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloService': Unsatisfied dependency expressed through field 'dao'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloDao' defined in file [D:\DevelopmentProject\IdeaProjects\Supermarketmanagementsystem\target\classes\dao\HelloDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring.cfg.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject (AutowiredAnnotationBeanPostProcessor.java:596)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject (InjectionMetadata.java:90)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties (AutowiredAnnotationBeanPostProcessor.java:374)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1378)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:846)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:863)
    at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:546)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext (ContextLoader.java:400)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext (ContextLoader.java:291)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized (ContextLoaderListener.java:103)
    at org.apache.catalina.core.StandardContext.listenerStart (StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal (StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start (LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloDao' defined in file [D:\DevelopmentProject\IdeaProjects\Supermarketmanagementsystem\target\classes\dao\HelloDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring.cfg.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType (AbstractAutowireCapableBeanFactory.java:1482)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1362)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate (DependencyDescriptor.java:273)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency (DefaultListableBeanFactory.java:1239)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency (DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject (AutowiredAnnotationBeanPostProcessor.java:593)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject (InjectionMetadata.java:90)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties (AutowiredAnnotationBeanPostProcessor.java:374)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1378)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:846)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:863)
    at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:546)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext (ContextLoader.java:400)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext (ContextLoader.java:291)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized (ContextLoaderListener.java:103)
    at org.apache.catalina.core.StandardContext.listenerStart (StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal (StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start (LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring.cfg.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:584)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate (DependencyDescriptor.java:273)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency (DefaultListableBeanFactory.java:1239)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency (DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType (AbstractAutowireCapableBeanFactory.java:1467)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1362)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate (DependencyDescriptor.java:273)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency (DefaultListableBeanFactory.java:1239)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency (DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject (AutowiredAnnotationBeanPostProcessor.java:593)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject (InjectionMetadata.java:90)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties (AutowiredAnnotationBeanPostProcessor.java:374)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1378)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:846)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:863)
    at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:546)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext (ContextLoader.java:400)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext (ContextLoader.java:291)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized (ContextLoaderListener.java:103)
    at org.apache.catalina.core.StandardContext.listenerStart (StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal (StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start (LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
Caused by: org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
    at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary (AbstractNestablePropertyAccessor.java:595)
    at org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty (AbstractNestablePropertyAccessor.java:604)
    at org.springframework.beans.BeanWrapperImpl.convertForProperty (BeanWrapperImpl.java:219)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty (AbstractAutowireCapableBeanFactory.java:1697)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues (AbstractAutowireCapableBeanFactory.java:1653)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1400)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate (DependencyDescriptor.java:273)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency (DefaultListableBeanFactory.java:1239)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency (DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType (AbstractAutowireCapableBeanFactory.java:1467)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1362)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate (DependencyDescriptor.java:273)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency (DefaultListableBeanFactory.java:1239)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency (DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject (AutowiredAnnotationBeanPostProcessor.java:593)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject (InjectionMetadata.java:90)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties (AutowiredAnnotationBeanPostProcessor.java:374)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1378)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:846)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:863)
    at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:546)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext (ContextLoader.java:400)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext (ContextLoader.java:291)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized (ContextLoaderListener.java:103)
    at org.apache.catalina.core.StandardContext.listenerStart (StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal (StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start (LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
Caused by: java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
    at org.springframework.core.io.support.ResourceArrayPropertyEditor.setAsText (ResourceArrayPropertyEditor.java:120)
    at org.springframework.beans.TypeConverterDelegate.doConvertTextValue (TypeConverterDelegate.java:466)
    at org.springframework.beans.TypeConverterDelegate.doConvertValue (TypeConverterDelegate.java:439)
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary (TypeConverterDelegate.java:192)
    at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary (AbstractNestablePropertyAccessor.java:585)
    at org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty (AbstractNestablePropertyAccessor.java:604)
    at org.springframework.beans.BeanWrapperImpl.convertForProperty (BeanWrapperImpl.java:219)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty (AbstractAutowireCapableBeanFactory.java:1697)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues (AbstractAutowireCapableBeanFactory.java:1653)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1400)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate (DependencyDescriptor.java:273)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency (DefaultListableBeanFactory.java:1239)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency (DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType (AbstractAutowireCapableBeanFactory.java:1467)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1362)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate (DependencyDescriptor.java:273)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency (DefaultListableBeanFactory.java:1239)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency (DefaultListableBeanFactory.java:1166)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject (AutowiredAnnotationBeanPostProcessor.java:593)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject (InjectionMetadata.java:90)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties (AutowiredAnnotationBeanPostProcessor.java:374)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1378)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:575)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:846)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:863)
    at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:546)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext (ContextLoader.java:400)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext (ContextLoader.java:291)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized (ContextLoaderListener.java:103)
    at org.apache.catalina.core.StandardContext.listenerStart (StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal (StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start (LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call (ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
十一月 14, 2018 12:31:53 下午 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloService': Unsatisfied dependency expressed through field 'dao'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloDao' defined in file [D:\DevelopmentProject\IdeaProjects\Supermarketmanagementsystem\target\classes\dao\HelloDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring.cfg.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1378)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:575)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:846)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
	at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:400)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:291)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'helloDao' defined in file [D:\DevelopmentProject\IdeaProjects\Supermarketmanagementsystem\target\classes\dao\HelloDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring.cfg.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1482)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1362)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:575)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:273)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1239)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1166)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
	... 24 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring.cfg.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:584)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:273)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1239)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1166)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1467)
	... 35 more
Caused by: org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
	at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:595)
	at org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty(AbstractNestablePropertyAccessor.java:604)
	at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:219)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1697)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1653)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1400)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:575)
	... 44 more
Caused by: java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:mapper/*.xml]: class path resource [mapper/] cannot be resolved to URL because it does not exist
	at org.springframework.core.io.support.ResourceArrayPropertyEditor.setAsText(ResourceArrayPropertyEditor.java:120)
	at org.springframework.beans.TypeConverterDelegate.doConvertTextValue(TypeConverterDelegate.java:466)
	at org.springframework.beans.TypeConverterDelegate.doConvertValue(TypeConverterDelegate.java:439)
	at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:192)
	at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:585)
	... 50 more

异常原因:service在调用dao层,dao层在找映射mapepr文件时报错,就是因为没有找到mapper映射文件。

Maven 构建SSM架构是出现的异常:class path resource [mapper/*.xml] cannot be opened because it does not exist_第1张图片

 在Maven项目中目录分为:

----java

----resources

----webapp


java中编写:java代码

resources中编写:各种配置文件

webapp中编写:表示层


 解决方法:只需把mapper映射文件放置在resources目录下,spring配置文件中mapperLocations的值,直接写resources下的路径就好,如下图:

Maven 构建SSM架构是出现的异常:class path resource [mapper/*.xml] cannot be opened because it does not exist_第2张图片

其他: classpath:/xxx 和 classpath:xxx是一样的 
classpath:xxx 和 classpath*:xxx是不一样的,前者表示引入一个,后者表示引入多个。

博主标语:如果有错误或者不足欢迎指正,本人也是在学习!

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