springboot启动报错： java.lang.ClassNotFoundException: org.springframework.beans.factory.ObjectProvider

使用springboot时遇到报错，报错信息如下

java.lang.IllegalStateException: Cannot load configuration class: org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:410) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:263) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:130) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:678) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:520) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE]
	at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE]
	at org.lujx.App.main(App.java:26) [classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.3.3.RELEASE.jar:1.3.3.RELEASE]
Caused by: java.lang.NoClassDefFoundError: org/springframework/beans/factory/ObjectProvider
	at java.lang.Class.getDeclaredConstructors0(Native Method) ~[na:1.8.0_121]
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) ~[na:1.8.0_121]
	at java.lang.Class.getDeclaredConstructors(Class.java:2020) ~[na:1.8.0_121]
	at org.springframework.cglib.proxy.Enhancer.generateClass(Enhancer.java:458) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.cglib.transform.TransformingClassGenerator.generateClass(TransformingClassGenerator.java:33) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanFactoryAwareGeneratorStrategy.generate(ConfigurationClassEnhancer.java:249) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:231) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:378) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:318) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer.createClass(ConfigurationClassEnhancer.java:135) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:107) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:400) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
	... 17 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.beans.factory.ObjectProvider
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_121]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_121]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_121]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_121]
	... 30 common frames omitted

简单来说就是在项目所依赖的spring-beans中找不到ObjectProvider类，这个问题是由于版本太低造成的，从Spring 4.3版本以后才有这个类。

此项目遇到这个问题的解决方案，升级spring-boot-starter-parent的版本，从1.3.x升级到1.4.x即可

请看下面截图

项目中使用的spring-boot-starter-parent的版本是1.3.3.RELEASE,该版本所依赖的spring-beans版本是4.2.5.REALESE，再看spring-beans的源码，如下图

 

可以看到，4.3以上版本中可以找到ObjectProvider,再看源码中的注释如下 

 

 所以，解决此问题只需要更改spring-boot-starter-parent的版本号即可，将版本从1.3.x升级到1.4.x即可