Druid配置的时候出现这个问题：
"C:Program FilesJavajdk1.8.0_191injava" -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:C:Program FilesJetBrainsIntelliJ IDEA 2017.2.6libidea_rt.jar=10437:C:Program FilesJetBrainsIntelliJ IDEA 2017.2.6in" -Dfile.encoding=UTF-8 -classpath "C:Program FilesJetBrainsIntelliJ IDEA 2017.2.6libidea_rt.jar;C:Program FilesJetBrainsIntelliJ IDEA 2017.2.6pluginsjunitlibjunit-rt.jar;C:Program FilesJetBrainsIntelliJ IDEA 2017.2.6pluginsjunitlibjunit5-rt.jar;C:Program FilesJavajdk1.8.0_191jrelibcharsets.jar;C:Program FilesJavajdk1.8.0_191jrelibdeploy.jar;C:Program FilesJavajdk1.8.0_191jrelibextaccess-bridge-64.jar;C:Program FilesJavajdk1.8.0_191jrelibextcldrdata.jar;C:Program FilesJavajdk1.8.0_191jrelibextdnsns.jar;C:Program FilesJavajdk1.8.0_191jrelibextjaccess.jar;C:Program FilesJavajdk1.8.0_191jrelibextjfxrt.jar;C:Program FilesJavajdk1.8.0_191jrelibextlocaledata.jar;C:Program FilesJavajdk1.8.0_191jrelibext ashorn.jar;C:Program FilesJavajdk1.8.0_191jrelibextsunec.jar;C:Program FilesJavajdk1.8.0_191jrelibextsunjce_provider.jar;C:Program FilesJavajdk1.8.0_191jrelibextsunmscapi.jar;C:Program FilesJavajdk1.8.0_191jrelibextsunpkcs11.jar;C:Program FilesJavajdk1.8.0_191jrelibextzipfs.jar;C:Program FilesJavajdk1.8.0_191jrelibjavaws.jar;C:Program FilesJavajdk1.8.0_191jrelibjce.jar;C:Program FilesJavajdk1.8.0_191jrelibjfr.jar;C:Program FilesJavajdk1.8.0_191jrelibjfxswt.jar;C:Program FilesJavajdk1.8.0_191jrelibjsse.jar;C:Program FilesJavajdk1.8.0_191jrelibmanagement-agent.jar;C:Program FilesJavajdk1.8.0_191jrelibplugin.jar;C:Program FilesJavajdk1.8.0_191jrelib esources.jar;C:Program FilesJavajdk1.8.0_191jrelib t.jar;I:IdeaProjectsssm-demo-courseNo19ssm-demo arget est-classes;I:IdeaProjectsssm-demo-courseNo19ssm-demo argetclasses;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-context-support4.2.4.RELEASEspring-context-support-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-beans4.2.4.RELEASEspring-beans-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-context4.2.4.RELEASEspring-context-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-aop4.2.4.RELEASEspring-aop-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryaopallianceaopalliance1.0aopalliance-1.0.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-core4.2.4.RELEASEspring-core-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositorycommons-loggingcommons-logging1.2commons-logging-1.2.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-jdbc4.2.4.RELEASEspring-jdbc-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-tx4.2.4.RELEASEspring-tx-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-test4.2.4.RELEASEspring-test-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryjunitjunit4.9junit-4.9.jar;C:UsersAdministrator.m2 epositoryorghamcresthamcrest-core1.1hamcrest-core-1.1.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-webmvc4.2.4.RELEASEspring-webmvc-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-expression4.2.4.RELEASEspring-expression-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgspringframeworkspring-web4.2.4.RELEASEspring-web-4.2.4.RELEASE.jar;C:UsersAdministrator.m2 epositoryorgmybatismybatis3.2.5mybatis-3.2.5.jar;C:UsersAdministrator.m2 epositoryorgmybatismybatis-spring1.2.2mybatis-spring-1.2.2.jar;C:UsersAdministrator.m2 epositorymysqlmysql-connector-java8.0.13mysql-connector-java-8.0.13.jar;C:UsersAdministrator.m2 epositorycomgoogleprotobufprotobuf-java3.6.1protobuf-java-3.6.1.jar;C:UsersAdministrator.m2 epositoryorgaspectjaspectjrt1.7.4aspectjrt-1.7.4.jar;C:UsersAdministrator.m2 epositoryorgaspectjaspectjweaver1.7.4aspectjweaver-1.7.4.jar;C:UsersAdministrator.m2 epositoryjavaxservletjavax.servlet-api3.1.0javax.servlet-api-3.1.0.jar;C:UsersAdministrator.m2 epositoryjavaxservletjspjsp-api2.2jsp-api-2.2.jar;C:UsersAdministrator.m2 epositoryjavaxservletjstl1.2jstl-1.2.jar;C:UsersAdministrator.m2 epositorycomfasterxmljacksoncorejackson-databind2.5.3jackson-databind-2.5.3.jar;C:UsersAdministrator.m2 epositorycomfasterxmljacksoncorejackson-annotations2.5.0jackson-annotations-2.5.0.jar;C:UsersAdministrator.m2 epositorycomfasterxmljacksoncorejackson-core2.5.3jackson-core-2.5.3.jar;C:UsersAdministrator.m2 epositorycommons-iocommons-io2.4commons-io-2.4.jar;C:UsersAdministrator.m2 epositorycommons-fileuploadcommons-fileupload1.3.1commons-fileupload-1.3.1.jar;C:UsersAdministrator.m2 epositoryorgapachepoipoi3.16poi-3.16.jar;C:UsersAdministrator.m2 epositorycommons-codeccommons-codec1.10commons-codec-1.10.jar;C:UsersAdministrator.m2 epositoryorgapachecommonscommons-collections44.1commons-collections4-4.1.jar;C:UsersAdministrator.m2 epositoryorgapachepoipoi-ooxml3.16poi-ooxml-3.16.jar;C:UsersAdministrator.m2 epositoryorgapachepoipoi-ooxml-schemas3.16poi-ooxml-schemas-3.16.jar;C:UsersAdministrator.m2 epositoryorgapachexmlbeansxmlbeans2.6.0xmlbeans-2.6.0.jar;C:UsersAdministrator.m2 epositorystaxstax-api1.0.1stax-api-1.0.1.jar;C:UsersAdministrator.m2 epositorycomgithubvirtualdcurvesapi1.04curvesapi-1.04.jar;C:UsersAdministrator.m2 epositoryorgslf4jslf4j-api1.7.7slf4j-api-1.7.7.jar;C:UsersAdministrator.m2 epositoryorgslf4jslf4j-log4j121.7.7slf4j-log4j12-1.7.7.jar;C:UsersAdministrator.m2 epositorylog4jlog4j1.2.16log4j-1.2.16.jar;C:UsersAdministrator.m2 epositorycomalibabadruid1.1.11druid-1.1.11.jar" com.intellij.rt.execution.junit.JUnitStarter -ideVersion5 -junit4 dbcp.DBCPTest,DBCPTest java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:228) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:230) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:249) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:292) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193) at org.junit.runner.JUnitCore.run(JUnitCore.java:157) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adminUserService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.ssm.demo.dao.AdminUserDao com.ssm.demo.service.impl.AdminUserServiceImpl.adminUserDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ssm.demo.dao.AdminUserDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adminUserDao' defined in file [I:IdeaProjectsssm-demo-courseNo19ssm-demo argetclassescomssmdemodaoAdminUserDao.class]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up. Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'articleDao' defined in file [I:IdeaProjectsssm-demo-courseNo19ssm-demo argetclassescomssmdemodaoArticleDao.class]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up. Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pictureDao' defined in file [I:IdeaProjectsssm-demo-courseNo19ssm-demo argetclassescomssmdemodaoPictureDao.class]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up. at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:125) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:109) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:261) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) ... 24 more Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.ssm.demo.dao.AdminUserDao com.ssm.demo.service.impl.AdminUserServiceImpl.adminUserDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ssm.demo.dao.AdminUserDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ... 40 more Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ssm.demo.dao.AdminUserDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545) ... 42 more Process finished with exit code -1
解决：
jdbc-druid-config.properties文件里的
# database configure
url少写了一个一个斜杠/
改为//localhost就好了
太粗心了。