java.lang.NoClassDefFoundError: org/springframework/boot/Bootstrapper 异常解决「建议收藏」

大家好，又见面了，我是你们的朋友全栈君。

异常描述

"C:\Program Files\Java\jdk1.8.0_131\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:D:\softDev\IntelliJ IDEA 2019.3.2\lib\idea_rt.jar=61202:D:\softDev\IntelliJ IDEA 2019.3.2\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_131\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\rt.jar;E:\project-demo\Java-demo\project-management\project-parent\project-system\target\classes;D:\apache\maven\repository\org\springframework\boot\spring-boot-starter-web\2.6.6\spring-boot-starter-web-2.6.6.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-starter\2.6.6\spring-boot-starter-2.6.6.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot\2.6.6\spring-boot-2.6.6.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-autoconfigure\2.6.6\spring-boot-autoconfigure-2.6.6.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-starter-logging\2.6.6\spring-boot-starter-logging-2.6.6.jar;D:\apache\maven\repository\ch\qos\logback\logback-classic\1.2.11\logback-classic-1.2.11.jar;D:\apache\maven\repository\ch\qos\logback\logback-core\1.2.11\logback-core-1.2.11.jar;D:\apache\maven\repository\org\apache\logging\log4j\log4j-to-slf4j\2.17.2\log4j-to-slf4j-2.17.2.jar;D:\apache\maven\repository\org\apache\logging\log4j\log4j-api\2.17.2\log4j-api-2.17.2.jar;D:\apache\maven\repository\org\slf4j\jul-to-slf4j\1.7.36\jul-to-slf4j-1.7.36.jar;D:\apache\maven\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;D:\apache\maven\repository\org\yaml\snakeyaml\1.29\snakeyaml-1.29.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-starter-json\2.6.6\spring-boot-starter-json-2.6.6.jar;D:\apache\maven\repository\com\fasterxml\jackson\core\jackson-databind\2.13.2.2\jackson-databind-2.13.2.2.jar;D:\apache\maven\repository\com\fasterxml\jackson\core\jackson-annotations\2.13.2\jackson-annotations-2.13.2.jar;D:\apache\maven\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.13.2\jackson-datatype-jdk8-2.13.2.jar;D:\apache\maven\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.13.2\jackson-datatype-jsr310-2.13.2.jar;D:\apache\maven\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.13.2\jackson-module-parameter-names-2.13.2.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-starter-tomcat\2.6.6\spring-boot-starter-tomcat-2.6.6.jar;D:\apache\maven\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.60\tomcat-embed-core-9.0.60.jar;D:\apache\maven\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.60\tomcat-embed-el-9.0.60.jar;D:\apache\maven\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.60\tomcat-embed-websocket-9.0.60.jar;D:\apache\maven\repository\org\springframework\spring-web\5.3.18\spring-web-5.3.18.jar;D:\apache\maven\repository\org\springframework\spring-beans\5.3.18\spring-beans-5.3.18.jar;D:\apache\maven\repository\org\springframework\spring-webmvc\5.3.18\spring-webmvc-5.3.18.jar;D:\apache\maven\repository\org\springframework\spring-context\5.3.18\spring-context-5.3.18.jar;D:\apache\maven\repository\org\springframework\spring-expression\5.3.18\spring-expression-5.3.18.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-starter-test\2.6.6\spring-boot-starter-test-2.6.6.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-test\2.6.6\spring-boot-test-2.6.6.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-test-autoconfigure\2.6.6\spring-boot-test-autoconfigure-2.6.6.jar;D:\apache\maven\repository\com\jayway\jsonpath\json-path\2.6.0\json-path-2.6.0.jar;D:\apache\maven\repository\net\minidev\json-smart\2.4.8\json-smart-2.4.8.jar;D:\apache\maven\repository\net\minidev\accessors-smart\2.4.8\accessors-smart-2.4.8.jar;D:\apache\maven\repository\org\ow2\asm\asm\9.1\asm-9.1.jar;D:\apache\maven\repository\org\slf4j\slf4j-api\1.7.36\slf4j-api-1.7.36.jar;D:\apache\maven\repository\jakarta\xml\bind\jakarta.xml.bind-api\2.3.3\jakarta.xml.bind-api-2.3.3.jar;D:\apache\maven\repository\jakarta\activation\jakarta.activation-api\1.2.2\jakarta.activation-api-1.2.2.jar;D:\apache\maven\repository\org\assertj\assertj-core\3.21.0\assertj-core-3.21.0.jar;D:\apache\maven\repository\org\hamcrest\hamcrest\2.2\hamcrest-2.2.jar;D:\apache\maven\repository\org\junit\jupiter\junit-jupiter\5.8.2\junit-jupiter-5.8.2.jar;D:\apache\maven\repository\org\junit\jupiter\junit-jupiter-api\5.8.2\junit-jupiter-api-5.8.2.jar;D:\apache\maven\repository\org\opentest4j\opentest4j\1.2.0\opentest4j-1.2.0.jar;D:\apache\maven\repository\org\junit\platform\junit-platform-commons\1.8.2\junit-platform-commons-1.8.2.jar;D:\apache\maven\repository\org\apiguardian\apiguardian-api\1.1.2\apiguardian-api-1.1.2.jar;D:\apache\maven\repository\org\junit\jupiter\junit-jupiter-params\5.8.2\junit-jupiter-params-5.8.2.jar;D:\apache\maven\repository\org\junit\jupiter\junit-jupiter-engine\5.8.2\junit-jupiter-engine-5.8.2.jar;D:\apache\maven\repository\org\junit\platform\junit-platform-engine\1.8.2\junit-platform-engine-1.8.2.jar;D:\apache\maven\repository\org\mockito\mockito-core\4.0.0\mockito-core-4.0.0.jar;D:\apache\maven\repository\net\bytebuddy\byte-buddy\1.11.22\byte-buddy-1.11.22.jar;D:\apache\maven\repository\net\bytebuddy\byte-buddy-agent\1.11.22\byte-buddy-agent-1.11.22.jar;D:\apache\maven\repository\org\objenesis\objenesis\3.2\objenesis-3.2.jar;D:\apache\maven\repository\org\mockito\mockito-junit-jupiter\4.0.0\mockito-junit-jupiter-4.0.0.jar;D:\apache\maven\repository\org\skyscreamer\jsonassert\1.5.0\jsonassert-1.5.0.jar;D:\apache\maven\repository\com\vaadin\external\google\android-json\0.0.20131108.vaadin1\android-json-0.0.20131108.vaadin1.jar;D:\apache\maven\repository\org\springframework\spring-core\5.3.18\spring-core-5.3.18.jar;D:\apache\maven\repository\org\springframework\spring-jcl\5.3.18\spring-jcl-5.3.18.jar;D:\apache\maven\repository\org\springframework\spring-test\5.3.18\spring-test-5.3.18.jar;D:\apache\maven\repository\org\xmlunit\xmlunit-core\2.8.4\xmlunit-core-2.8.4.jar;D:\apache\maven\repository\org\springframework\boot\spring-boot-starter-aop\2.6.6\spring-boot-starter-aop-2.6.6.jar;D:\apache\maven\repository\org\springframework\spring-aop\5.3.18\spring-aop-5.3.18.jar;D:\apache\maven\repository\org\aspectj\aspectjweaver\1.9.7\aspectjweaver-1.9.7.jar;D:\apache\maven\repository\com\alibaba\cloud\spring-cloud-starter-alibaba-nacos-discovery\2021.1\spring-cloud-starter-alibaba-nacos-discovery-2021.1.jar;D:\apache\maven\repository\com\alibaba\cloud\spring-cloud-alibaba-commons\2021.1\spring-cloud-alibaba-commons-2021.1.jar;D:\apache\maven\repository\com\alibaba\nacos\nacos-client\1.4.1\nacos-client-1.4.1.jar;D:\apache\maven\repository\com\alibaba\nacos\nacos-common\1.4.1\nacos-common-1.4.1.jar;D:\apache\maven\repository\commons-io\commons-io\2.2\commons-io-2.2.jar;D:\apache\maven\repository\org\apache\httpcomponents\httpasyncclient\4.1.5\httpasyncclient-4.1.5.jar;D:\apache\maven\repository\org\apache\httpcomponents\httpcore\4.4.15\httpcore-4.4.15.jar;D:\apache\maven\repository\org\apache\httpcomponents\httpcore-nio\4.4.15\httpcore-nio-4.4.15.jar;D:\apache\maven\repository\org\apache\httpcomponents\httpclient\4.5.13\httpclient-4.5.13.jar;D:\apache\maven\repository\com\alibaba\nacos\nacos-api\1.4.1\nacos-api-1.4.1.jar;D:\apache\maven\repository\com\google\guava\guava\24.1.1-jre\guava-24.1.1-jre.jar;D:\apache\maven\repository\com\google\code\findbugs\jsr305\1.3.9\jsr305-1.3.9.jar;D:\apache\maven\repository\org\checkerframework\checker-compat-qual\2.0.0\checker-compat-qual-2.0.0.jar;D:\apache\maven\repository\com\google\errorprone\error_prone_annotations\2.1.3\error_prone_annotations-2.1.3.jar;D:\apache\maven\repository\com\google\j2objc\j2objc-annotations\1.1\j2objc-annotations-1.1.jar;D:\apache\maven\repository\org\codehaus\mojo\animal-sniffer-annotations\1.14\animal-sniffer-annotations-1.14.jar;D:\apache\maven\repository\commons-codec\commons-codec\1.15\commons-codec-1.15.jar;D:\apache\maven\repository\com\fasterxml\jackson\core\jackson-core\2.13.2\jackson-core-2.13.2.jar;D:\apache\maven\repository\io\prometheus\simpleclient\0.12.0\simpleclient-0.12.0.jar;D:\apache\maven\repository\io\prometheus\simpleclient_tracer_otel\0.12.0\simpleclient_tracer_otel-0.12.0.jar;D:\apache\maven\repository\io\prometheus\simpleclient_tracer_common\0.12.0\simpleclient_tracer_common-0.12.0.jar;D:\apache\maven\repository\io\prometheus\simpleclient_tracer_otel_agent\0.12.0\simpleclient_tracer_otel_agent-0.12.0.jar;D:\apache\maven\repository\com\alibaba\spring\spring-context-support\1.0.10\spring-context-support-1.0.10.jar;D:\apache\maven\repository\org\springframework\cloud\spring-cloud-commons\3.0.1\spring-cloud-commons-3.0.1.jar;D:\apache\maven\repository\org\springframework\security\spring-security-crypto\5.6.2\spring-security-crypto-5.6.2.jar;D:\apache\maven\repository\org\springframework\cloud\spring-cloud-context\3.0.1\spring-cloud-context-3.0.1.jar" com.xhs.SystemApp
15:33:56.068 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.NoClassDefFoundError: org/springframework/boot/Bootstrapper
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.springframework.cloud.bootstrap.encrypt.DecryptEnvironmentPostProcessor.getTextEncryptor(DecryptEnvironmentPostProcessor.java:82)
	at org.springframework.cloud.bootstrap.encrypt.DecryptEnvironmentPostProcessor.postProcessEnvironment(DecryptEnvironmentPostProcessor.java:68)
	at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEnvironmentPreparedEvent(EnvironmentPostProcessorApplicationListener.java:102)
	at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:87)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:85)
	at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:66)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:120)
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:114)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:65)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:339)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:297)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301)
	at com.xhs.SystemApp.main(SystemApp.java:16)
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.Bootstrapper
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 31 common frames omitted

Process finished with exit code 1

异常分析：

Spring Boot 依赖版本和Spring Cloud Alibaba依赖版本不一致，导致报错。

异常解决：

将Spring Boot 依赖版本和Spring Cloud Alibaba依赖版本一一对应

Spring Cloud Alibaba对应的Spring Boot 及Spring Cloud版本

https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E