Jenkins执行Maven项目的离线构建，引用本地lib资源方案记录

背景

这段时间手头上有个多模态结构的Maven项目需要给到客户进行验证部署，且不能直接打包镜像，而是在客户本地进行编译构建，但由于客户方的 Maven 私库有网络隔离不能连通外网，我们无法将项目的其他依赖推送到客户方，所以就需要将项目适配成引用本地lib目录下的jar包。

期间参考了网上通用的引用本地lib资源，但在本地执行mvn package 指令打包出来的运行jar包是可以正常运行，但最终提交到 Jenkins 构建计划的时候，则一直无法将 lib 下的 jar 包资源拷贝到服务jar中。

反复挣扎了许久之后，最终还是请教了架构大佬获得了解救方案。

普通引用方案

项目改造过程期间，参考了网上的博客或相关案例（eg：https://blog.csdn.net/qq_49139682/article/details/127216805），基本上步骤可以总结如下：

1. 执行 mvn 指令将项目的所有依赖导出来

mvn dependency:copy-dependencies -DoutputDirectory=lib

2. 项目引用的依赖调整，设置为引用lib目录下的jar：

   <dependencies>
        <dependency>
          <groupId>org.projectlombok</groupId>
          <artifactId>lombok</artifactId>
          <version>1.18.26</version>
            <scope>system</scope>
            <systemPath>${project.basedir}/../lib/lombok-1.18.26.jar</systemPath>
        </dependency>
    </dependencies>

3. 增加 spring-boot-maven-plugin ，并配置includeSystemScope属性为 true

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                <!--设置为true，以便把本地的system的jar也包括进来-->
                    <includeSystemScope>true</includeSystemScope>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

4. 增加 maven-compiler-plugin ，并配置编译时，引用项目的lib目录

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                    <compilerArguments>
                        <extdirs>${project.basedir}/lib</extdirs>
                    </compilerArguments>
                </configuration>
            </plugin>

5. 增加 maven-source-plugin 插件

                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-source-plugin</artifactId>
                    <version>2.2.1</version>
                    <!-- 绑定source插件到Maven的生命周期,并在生命周期后执行绑定的source的goal -->
                    <executions>
                        <execution>
                            <!-- 绑定source插件到Maven的生命周期 -->
                            <phase>deploy</phase>
                            <!--在生命周期后执行绑定的source插件的goals -->
                            <goals>
                                <goal>jar-no-fork</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>

最终在本地验证的时候，执行package指令是可以打包成功的，当时便一度以为问题已解决，但结果上流水线构建的时候，就发现了新的问题：

流水线里面执行了copy lib资源到服务jar中，但实际去查看最终的结果jar里的/BOOT-INF/lib 目录下，却没有找到任何需要拷贝进去的lib资源。

这个问题排查了很久，奈何自己水平实在是过于辣鸡，一直都没有定位出来。最终还是将问题升级到大佬协助定位。

最终方案

1. 复制依赖包到lib目录

• 在项目的parent#pom.xml下增加maven-dependency-plugin配置

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <configuration>
                    <outputDirectory>${pom.basedir}/../lib</outputDirectory>
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

• 然后执行maven命令clean package，执行完成后会在生成lib目录，这些为此项目所需的依赖jar包

2. 修改项目配置为离线依赖

• 修改项目的各module#pom.xml的build配置，如 [lib-package-sample-api-dto/pom.xml]、 [lib-package-sample-service/pom.xml]、 [lib-package-sample-web/pom.xml]

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <goals/>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                    <compilerArguments>
                        <extdirs>${pom.basedir}/../lib</extdirs>
                    </compilerArguments>
                </configuration>
            </plugin>

• 修改项目的各module#pom.xml的dependencies配置，如 [lib-package-sample-api-dto/pom.xml]、 [lib-package-sample-service/pom.xml]、 [lib-package-sample-web/pom.xml]

    <dependencies>
        <dependency>
          <groupId>org.projectlombok</groupId>
          <artifactId>lombok</artifactId>
          <version>1.18.26</version>
            <scope>system</scope>
            <systemPath>${project.basedir}/../lib/lombok-1.18.26.jar</systemPath>
        </dependency>
    </dependencies>

• 移除项目中父级pom.xml中关于其他pom依赖的引入，如项目中还要依赖一个自定义的框架pom，因为本地引用无法导出非jar包形式的文件。

• 修改项目的web服务#pom.xml的spring-boot-maven-plugin插件配置，增加 <layout>ZIP</layout>，如 [lib-sample-single-web/pom.xml]

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <layout>ZIP</layout>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

3. 离线打包及启动

3.1. 使用maven命令 clean install -DskipTests 打包，生成的jar，此时的jar内不含依赖包，故启动时需要指定依赖包。

java -jar -Dloader.path=lib  lib-package-sample-web.jar

jar包及lib包的位置如下：

4. 原项目其他问题及解决方案

4.1. Could not find resource [application.properties]

• 如果项目中使用了logback打印框架，启动时，logback-spring.xml 读取application.properties配置失败，原因是加载顺序先后导致，可将配置项移除。

LOGBACK: No context given for org.apache.skywalking.apm.toolkit.log.logback.v1.x.log.GRPCLogClientAppender[null]
2023-03-02T11:42:46.049+08:00 [ERROR][lib-sample-single-web][107292][][main][] --- org.springframework.boot.SpringApplication-845 : Application run failed 
java.lang.IllegalStateException: Logback configuration error detected: 
ERROR in ch.qos.logback.core.joran.action.PropertyAction - Could not find resource [application.properties].
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:169)
    at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:82)
    at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:117)
    at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:264)
    at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:237)
    at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:200)
    at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:173)
    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:74)
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:361)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1258)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246)
    at com.lls.lib.sample.single.web.LibSampleSingleWebApp.main(LibSampleSingleWebApp.java:29)
exception:Logback configuration error detected: 
ERROR in ch.qos.logback.core.joran.action.PropertyAction - Could not find resource [application.properties].
end2023-03-02T11:42:46.056
java.lang.IllegalStateException: Logback configuration error detected: 
ERROR in ch.qos.logback.core.joran.action.PropertyAction - Could not find resource [application.properties].
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:169)
    at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:82)
    at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:117)
    at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:264)
    at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:237)
    at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:200)
    at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:173)
    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:74)
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:361)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1258)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246)
    at com.lls.lib.sample.single.web.LibSampleSingleWebApp.main(LibSampleSingleWebApp.java:29)
Disconnected from the target VM, address: '127.0.0.1:63167', transport: 'socket'

Process finished with exit code 0

4.2. com.alibaba.druid.pool.DruidDataSource-974 : {dataSource-1} init error

• 启动时，数据库密码解密失败，暂时不明原因，可先将数据库密码（spring.datasource.password配置项）改为明文。

2023-03-02T18:47:58.790+08:00 [INFO ][lib-sample-single-web][116936][][localhost-startStop-1][] --- com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure-56 : Init DruidDataSource
2023-03-02T18:47:59.033+08:00 [ERROR][lib-sample-single-web][116936][][localhost-startStop-1][] --- com.alibaba.druid.pool.DruidDataSource-974 : {dataSource-1} init error
java.lang.IllegalArgumentException: Failed to decrypt.
        at com.alibaba.druid.filter.config.ConfigFilter.decrypt(ConfigFilter.java:205)
        at com.alibaba.druid.filter.config.ConfigFilter.init(ConfigFilter.java:123)
        at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:839)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1824)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1767)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1322)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1288)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1215)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1093)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory$DependencyObjectProvider.getIfAvailable(DefaultListableBeanFactory.java:1706)
        at org.springframework.boot.actuate.autoconfigure.jdbc.DataSourceHealthIndicatorAutoConfiguration.<init>(DataSourceHealthIndicatorAutoConfiguration.java:77)
        at org.springframework.boot.actuate.autoconfigure.jdbc.DataSourceHealthIndicatorAutoConfiguration$$EnhancerBySpringCGLIB$$b8a1394b.<init>(<generated>)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:170)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:117)
        at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:275)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1267)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1124)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:514)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:502)
        at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1198)
        at org.springframework.boot.actuate.autoconfigure.health.HealthIndicatorBeansComposite.get(HealthIndicatorBeansComposite.java:46)
        at org.springframework.boot.actuate.autoconfigure.health.HealthEndpointConfiguration.healthEndpoint(HealthEndpointConfiguration.java:38)
        at org.springframework.boot.actuate.autoconfigure.health.HealthEndpointConfiguration$$EnhancerBySpringCGLIB$$665d9da8.CGLIB$healthEndpoint$0(<generated>)
        at org.springframework.boot.actuate.autoconfigure.health.HealthEndpointConfiguration$$EnhancerBySpringCGLIB$$665d9da8$$FastClassBySpringCGLIB$$d822f5cc.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361)
        at org.springframework.boot.actuate.autoconfigure.health.HealthEndpointConfiguration$$EnhancerBySpringCGLIB$$665d9da8.healthEndpoint(<generated>)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1089)
        at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.createEndpointBean(EndpointDiscoverer.java:143)
        at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.createEndpointBeans(EndpointDiscoverer.java:132)
        at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.discoverEndpoints(EndpointDiscoverer.java:122)
        at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.getEndpoints(EndpointDiscoverer.java:116)
        at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.servletEndpointRegistrar(ServletEndpointManagementContextConfiguration.java:75)
        at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$fff13fa0.CGLIB$servletEndpointRegistrar$0(<generated>)
        at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$fff13fa0$$FastClassBySpringCGLIB$$225f74d0.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361)
        at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$fff13fa0.servletEndpointRegistrar(<generated>)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:226)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:214)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:91)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:80)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:250)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:237)
        at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:54)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5245)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1421)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1411)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.security.NoSuchAlgorithmException: Cannot find any provider supporting RSA/ECB/PKCS1Padding
        at javax.crypto.Cipher.getInstance(Cipher.java:543)
        at com.alibaba.druid.filter.config.ConfigTools.decrypt(ConfigTools.java:133)
        at com.alibaba.druid.filter.config.ConfigFilter.decrypt(ConfigFilter.java:197)
        ... 111 common frames omitted

4.3. 密文加解密失败

• 解决方案：Java指令-Djava.ext.dirs的陷阱_cyony的博客-CSDN博客

这两天由于现场需求，需要把ES索引写入插件改造成带安全认证的方式，加密算法是由java.security相关类实现的。在DEMO中测试了若干次都没问题，但是放到生成环境中就是报NoSuchAlgorithmException的错误，相关错误如下：

这个问题困扰了好久，经过多方面的排查，其中细节不一一描述，最终发现是生产环境下的启动指令属性-Djava.ext.dirs出现了问题。
-Djava.ext.dirs会覆盖Java本身的ext设置，java.ext.dirs指定的目录由ExtClassLoader加载器加载，
如果您的程序没有指定该系统属性，那么该加载器默认加载$JAVA_HOME/jre/lib/ext目录下的所有jar文件。
但如果你手动指定系统属性且忘了把$JAVA_HOME/jre/lib/ext路径给加上，那么ExtClassLoader不会去加载$JAVA_HOME/lib/ext下面的jar文件，
这意味着你将失去一些功能，例如java自带的加解密算法实现。

OK问题分析到这儿，什么原因已经很明朗，解决方案也很简单，只需在改路径后面补上ext的路径即可！比如：
-Djava.ext.dirs=./plugin:$JAVA_HOME/jre/lib/ext。windows环境下运行程序，应该用分号替代冒号来分隔。

4.4. springboot 引用外部jar启动

• java - Spring Boot Executable Jar with Classpath - Stack Overflow文章来源地址https://www.toymoban.com/news/detail-762774.html