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记一次命令行启动springboot项目的问题 java -jar的问题

news 来源：原创 2025/5/20 5:01:33

错误的写法

java -jar ruoyi-admin.jar -Dloader.path=.\lib

正确的写法

java -Dloader.path=./lib -jar ruoyi-admin.jar

或者

java -jar -Dloader.path=./lib ruoyi-admin.jar

-Dloader.path必须卸载 -jar ruoyi-admin.jar之前，其实我试过了-Dloader.path命令只要在ruoyi-admin.jar之前即可

E:\workspace\aliyun_codeup\LogisticsManageSys\ruoyi-admin\target>java -jar ruoyi-admin.jar -Dloader.path=.\lib
Exception in thread "main" java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:108)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:467)
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplication
at com.ruoyi.RuoYiApplication.main(RuoYiApplication.java:18)
... 8 more
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:587)
at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:151)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)