SpringBoot报错: Error creating bean with name freeMarkerConfigurer defined in class path resource

今天写代码没有看黄历，加了点代码，项目运行不起来，项目报错如下所示：

2020-05-25 10:00:03.913 - [ERROR] - [org.springframework.boot.SpringApplication:reportFailure:858] - Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'freeMarkerConfigurer' defined in class path resource [org/springframework/boot/autoconfigure/freemarker/FreeMarkerServletWebConfiguration.class]: Invocation of init method failed; nested exception is java.lang.ExceptionInInitializerError
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1778)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
        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:849)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
        at com.yueniu.yngp.YngpServer.main(YngpServer.java:34)
        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.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:240)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ExceptionInInitializerError: null
        at org.springframework.ui.freemarker.FreeMarkerConfigurationFactory.newConfiguration(FreeMarkerConfigurationFactory.java:327)
        at org.springframework.ui.freemarker.FreeMarkerConfigurationFactory.createConfiguration(FreeMarkerConfigurationFactory.java:257)
                                                                     

度娘发现都是说jar包版本过低，需要升级freemaker的版本。可是我已经是比较高的版本。看来问题不是出在这里。然后使用谷歌搜索，发现：

解决方案有两个：

1：在配置文件中，设置：spring.freemarker.check-template-location=false

可是我并不是使用freemaker做页面处理的。所以这种解决方案pass掉。

2：在自动注解中过滤到freemakerConfiguration这个类就可以。

具体解决：在你的spring boot启动类中添加：

@EnableAutoConfiguration(exclude = { FreeMarkerAutoConfiguration.class })

即可。这样就过滤掉了。

重启启动项目，正常访问了。

总结：

这个问题主要是因为spring boot的@EnableAutoConfiguration注解引起的。

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