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老師 同學們這個錯誤時什么情況錒

java.lang.IllegalStateException:?Failed?to?load?ApplicationContext

	at?org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:125)
	at?org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:107)
	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.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:44)
	at?org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:242)
	at?org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227)
	at?org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
	at?org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at?org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
	at?org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246)
	at?org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
	at?org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at?org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at?org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at?org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at?org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at?org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
	at?org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
	at?org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at?org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
	at?org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at?com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at?com.intellij.rt.execution.junit.IdeaTestRunner$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?'dataSource'?defined?in?class?path?resource?[org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]:?Bean?instantiation?via?factory?method?failed;?nested?exception?is?org.springframework.beans.BeanInstantiationException:?Failed?to?instantiate?[com.zaxxer.hikari.HikariDataSource]:?Factory?method?'dataSource'?threw?exception;?nested?exception?is?org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException:?Failed?to?determine?a?suitable?driver?class
	at?org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:587)
	at?org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250)
	at?org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099)
	at?org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
	at?org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
	at?org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
	at?org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
	at?org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
	at?org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
	at?org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760)
	at?org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)
	at?org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
	at?org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752)
	at?org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388)
	at?org.springframework.boot.SpringApplication.run(SpringApplication.java:327)
	at?org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:138)
	at?org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)
	at?org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117)
	...?25?more
Caused?by:?org.springframework.beans.BeanInstantiationException:?Failed?to?instantiate?[com.zaxxer.hikari.HikariDataSource]:?Factory?method?'dataSource'?threw?exception;?nested?exception?is?org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException:?Failed?to?determine?a?suitable?driver?class
	at?org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
	at?org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579)
	...?42?more
Caused?by:?org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException:?Failed?to?determine?a?suitable?driver?class
	at?org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:236)
	at?org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.initializeDataSourceBuilder(DataSourceProperties.java:176)
	at?org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:43)
	at?org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari.dataSource(DataSourceConfiguration.java:81)
	at?sun.reflect.NativeMethodAccessorImpl.invoke0(Native?Method)
	at?sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at?sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at?java.lang.reflect.Method.invoke(Method.java:498)
	at?org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
	...?43?more


正在回答

5 回答

對， 和自帶的沖突了， ?加個@Qualifier(value = "dataSource")可避免， 就是用自己創(chuàng)建的這個bean

1 回復 有任何疑惑可以回復我~
#1

qq_逆時針_1 提問者

我加了 但還是報錯，只有吧自帶的配置好才行，但是就有2個數(shù)據(jù)源了，不知道自帶的怎么取消
2018-03-05 回復 有任何疑惑可以回復我~
#2

qq_逆時針_1 提問者

非常感謝！
2018-03-06 回復 有任何疑惑可以回復我~
#3

yangleduo 回復 qq_逆時針_1 提問者

你好,請問你最后怎么解決的呀,我也遇到同樣的問題
2018-11-08 回復 有任何疑惑可以回復我~ 
spring.datasource.url=jdbc:mysql://localhost:3306/jason-fast-layout?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8&useSSL=false
spring.datasource.hikari.username=root
spring.datasource.hikari.password=root
spring.datasource.hikari.connection-timeout=30000
spring.datasource.hikari.idle-timeout=60000
spring.datasource.hikari.max-lifetime=1800000
spring.datasource.hikari.maximum-pool-size=15
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.type=com.zaxxer.hikari.HikariDataSource


你的配置錯了? 按照我的來

0 回復 有任何疑惑可以回復我~
#1

qq_陪你度過漫長的歲月_0

springboot版本2.0.6
2018-12-06 回復 有任何疑惑可以回復我~


Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Cannot load driver class: com.mysql.jdbc.Driver

我用的是Springboot2.0老師是1.5 ?不知道為啥我的一直說沒連接驅(qū)動?？墒莏ar里有mysql的驅(qū)動


0 回復 有任何疑惑可以回復我~

39行后邊兒說的很清楚了， create ‘dataSource’這個bean error， 看一下是不是哪兒寫錯了。

0 回復 有任何疑惑可以回復我~

解決了?? 原來springboot有自帶的datasource

0 回復 有任何疑惑可以回復我~

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老師 同學們這個錯誤時什么情況錒

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