java.lang.IllegalStateException:[classpath:/application.yml]snakeyaml was not found on the classpath

朴灿烈づ我的快乐病毒、 2023-07-18 05:50 48阅读 0赞

## java.lang.IllegalStateException: Attempted to load applicationConfig: \[classpath:/application.yml\] but snakeyaml was not found on the classpath ##

启动SpringBoot项目时，控制台报错，日志如下

Caused by: java.lang.IllegalStateException: Failed to load property source from location 'classpath:/application.yml'
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:554)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:500)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:467)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$null$6(ConfigFileApplicationListener.java:448)
    	at java.lang.Iterable.forEach(Iterable.java:75)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$7(ConfigFileApplicationListener.java:447)
    	at java.lang.Iterable.forEach(Iterable.java:75)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:444)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:332)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:207)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:190)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:177)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:163)
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
    	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:75)
    	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
    	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:347)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:306)
    	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:157)
    	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:137)
    	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91)
    	at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171)
    	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135)
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    	... 38 more
    Caused by: java.lang.IllegalStateException: Attempted to load applicationConfig: [classpath:/application.yml] but snakeyaml was not found on the classpath
    	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:47)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadDocuments(ConfigFileApplicationListener.java:572)
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:526)
    	... 64 more

百度一下，说缺少snakeyaml jar包，需要在pom里加：

<dependency>
        <groupId>org.yaml</groupId>
        <artifactId>snakeyaml</artifactId>
    </dependency>

但是spring-boot-starter明明就已经依赖了snakeyaml，为什么还要再次依赖，我突然明白肯定是jar包的问题， 刚构建项目的时候，maven的配置不对，jar包有一部分没导入，是后来切换了maven的配置才能把剩余jar包导入。

重新检查**maven配置**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1NjA2MDEw_size_16_color_FFFFFF_t_70]  
**重新导入jar包**  
选中pom.xml文件右键，选中maven->Reimport  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1NjA2MDEw_size_16_color_FFFFFF_t_70 1]

重新打包成功部署，问题解决。

--------------------

> 天下英雄出我辈，一入江湖岁月催  
> 我是爱生活的「无间行者」，努力把实践过的解决方案分享给大家  
> 一个赞、一个评论、一个关注，真的好开心，努力没有白费。

--------------------

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1NjA2MDEw_size_16_color_FFFFFF_t_70]: /images/20230528/5aceb52e17c648ca913f6a2b07eed8de.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1NjA2MDEw_size_16_color_FFFFFF_t_70 1]: /images/20230528/58904194b28f4341b65fab289f1e0d10.png