为什么我在运行 Spring Boot 应用程序的 .jar 版本时无法检索此文件？

【问题标题】：Why I can't retrieve this file when I run the .jar version of my Spring Boot application?为什么我在运行 Spring Boot 应用程序的 .jar 版本时无法检索此文件？
【发布时间】：2021-10-24 22:04:38
【问题描述】：

我正在开发一个 Spring Batch 应用程序，当我执行包含我的应用。如果我从 STS (Eclipse) 运行它，我的应用程序可以正常工作。

我将尝试详细解释我所做的事情以及问题所在。在我的项目 /src/main/resources/static 的这个文件夹中，我已将名为 certificate.pfx 的证书文件放入：

然后在我的代码中声明此方法返回一个 RestTemplate bean，该 bean 检索并使用此证书文件以执行对外部 API 的 REST 调用：

@Bean
RestTemplate restTemplate() throws KeyManagementException, UnrecoverableKeyException, NoSuchAlgorithmException, KeyStoreException, CertificateException, IOException, URISyntaxException {
    final String password = "password";
    //final String pfxPath = "/home/andrea/Documents/workspace-spring-tool-suite-4-4.11.0.RELEASE/UpdateInfoBatch/target/classes/static/certificate.pfx";
    
    
    URL clientCertRes = getClass().getClassLoader().getResource("static/certificate.pfx");
    
    
    File clientCertFileile = Paths.get(clientCertRes.toURI()).toFile();
    
    
    String clientCertFileileAbsolutePath = clientCertFileile.getAbsolutePath();
    
    System.out.println("clientCertFileileAbsolutePath: " + clientCertFileileAbsolutePath);  
    
    HttpComponentsClientHttpRequestFactory httpComponentsClientHttpRequestFactory = getHttpComponentsClientHttpRequestFactory(clientCertFileileAbsolutePath,password);
    
    RestTemplate restTemplate = new RestTemplate(httpComponentsClientHttpRequestFactory);
    
    return restTemplate;
    
}

如果我从 STS\Eclipse 执行我的代码，它工作正常：我没有例外，并且对我的外部 API 的调用正确地使用了所需的证书。

问题在于，当我尝试执行我的应用程序时，会执行已编译的 .jar 文件版本。事实上，如果我执行：

java -jar UpdateInfoBatch-0.0.1-SNAPSHOT.jar

我在启动应用程序上下文时获得以下异常：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-08-24 19:04:37.115 ERROR 6544 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'springBatchExampleJobLauncher' defined in URL [jar:file:/home/andrea/git/notartel-api-batch/target/UpdateInfoBatch-0.0.1-SNAPSHOT.jar!/BOOT-INF/classes!/com/notariato/updateInfo/SpringBatchExampleJobLauncher.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'updateInfoBatchConfig': Unsatisfied dependency expressed through field 'notaryListServiceAdapter'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'notaryListServiceAdapter': Unsatisfied dependency expressed through field 'notaryService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'notaryService' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.notariato.service.NotaryService]: Factory method 'notaryService' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Factory method 'restTemplate' threw exception; nested exception is java.nio.file.FileSystemNotFoundException
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1354) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.9.jar!/:5.3.9]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.9.jar!/:5.3.9]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.3.jar!/:2.5.3]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-2.5.3.jar!/:2.5.3]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) ~[spring-boot-2.5.3.jar!/:2.5.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) ~[spring-boot-2.5.3.jar!/:2.5.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-2.5.3.jar!/:2.5.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332) ~[spring-boot-2.5.3.jar!/:2.5.3]
    at com.notariato.updateInfo.UpdateInfoBatchApplication.main(UpdateInfoBatchApplication.java:35) ~[classes!/:0.0.1-SNAPSHOT]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) ~[UpdateInfoBatch-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:108) ~[UpdateInfoBatch-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) ~[UpdateInfoBatch-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88) ~[UpdateInfoBatch-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'updateInfoBatchConfig': Unsatisfied dependency expressed through field 'notaryListServiceAdapter'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'notaryListServiceAdapter': Unsatisfied dependency expressed through field 'notaryService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'notaryService' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.notariato.service.NotaryService]: Factory method 'notaryService' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Factory method 'restTemplate' threw exception; nested exception is java.nio.file.FileSystemNotFoundException
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:410) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.9.jar!/:5.3.9]
    ... 27 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'notaryListServiceAdapter': Unsatisfied dependency expressed through field 'notaryService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'notaryService' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.notariato.service.NotaryService]: Factory method 'notaryService' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Factory method 'restTemplate' threw exception; nested exception is java.nio.file.FileSystemNotFoundException
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657) ~[spring-beans-5.3.9.jar!/:5.3.9]
    ... 51 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'notaryService' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.notariato.service.NotaryService]: Factory method 'notaryService' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Factory method 'restTemplate' threw exception; nested exception is java.nio.file.FileSystemNotFoundException
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:486) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657) ~[spring-beans-5.3.9.jar!/:5.3.9]
    ... 65 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.notariato.service.NotaryService]: Factory method 'notaryService' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Factory method 'restTemplate' threw exception; nested exception is java.nio.file.FileSystemNotFoundException
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.9.jar!/:5.3.9]
    ... 78 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in class path resource [com/notariato/updateInfo/config/BeanConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Factory method 'restTemplate' threw exception; nested exception is java.nio.file.FileSystemNotFoundException
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:486) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.resolveBeanReference(ConfigurationClassEnhancer.java:362) ~[spring-context-5.3.9.jar!/:5.3.9]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:334) ~[spring-context-5.3.9.jar!/:5.3.9]
    at com.notariato.updateInfo.config.BeanConfig$$EnhancerBySpringCGLIB$$e4e5b284.restTemplate(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
    at com.notariato.updateInfo.config.BeanConfig.notaryService(BeanConfig.java:34) ~[classes!/:0.0.1-SNAPSHOT]
    at com.notariato.updateInfo.config.BeanConfig$$EnhancerBySpringCGLIB$$e4e5b284.CGLIB$notaryService$1(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
    at com.notariato.updateInfo.config.BeanConfig$$EnhancerBySpringCGLIB$$e4e5b284$$FastClassBySpringCGLIB$$3144f839.invoke(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.3.9.jar!/:5.3.9]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.3.9.jar!/:5.3.9]
    at com.notariato.updateInfo.config.BeanConfig$$EnhancerBySpringCGLIB$$e4e5b284.notaryService(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.9.jar!/:5.3.9]
    ... 79 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Factory method 'restTemplate' threw exception; nested exception is java.nio.file.FileSystemNotFoundException
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.9.jar!/:5.3.9]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.9.jar!/:5.3.9]
    ... 102 common frames omitted
Caused by: java.nio.file.FileSystemNotFoundException: null
    at jdk.zipfs/jdk.nio.zipfs.ZipFileSystemProvider.getFileSystem(ZipFileSystemProvider.java:156) ~[jdk.zipfs:na]
    at jdk.zipfs/jdk.nio.zipfs.ZipFileSystemProvider.getPath(ZipFileSystemProvider.java:142) ~[jdk.zipfs:na]
    at java.base/java.nio.file.Path.of(Path.java:208) ~[na:na]
    at java.base/java.nio.file.Paths.get(Paths.java:98) ~[na:na]
    at com.notariato.updateInfo.config.BeanConfig.restTemplate(BeanConfig.java:47) ~[classes!/:0.0.1-SNAPSHOT]
    at com.notariato.updateInfo.config.BeanConfig$$EnhancerBySpringCGLIB$$e4e5b284.CGLIB$restTemplate$0(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
    at com.notariato.updateInfo.config.BeanConfig$$EnhancerBySpringCGLIB$$e4e5b284$$FastClassBySpringCGLIB$$3144f839.invoke(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.3.9.jar!/:5.3.9]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.3.9.jar!/:5.3.9]
    at com.notariato.updateInfo.config.BeanConfig$$EnhancerBySpringCGLIB$$e4e5b284.restTemplate(<generated>) ~[classes!/:0.0.1-SNAPSHOT]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.9.jar!/:5.3.9]
    ... 103 common frames omitted

正如您在前面的堆栈跟踪中看到的，这个异常的原因是这个：

Caused by: java.nio.file.FileSystemNotFoundException: null

我很确定它应该与我检索证书文件的这些代码行有关：

URL clientCertRes = getClass().getClassLoader().getResource("static/certificate.pfx");
File clientCertFileile = Paths.get(clientCertRes.toURI()).toFile();
String clientCertFileileAbsolutePath = clientCertFileile.getAbsolutePath();

我很确定，因为我试图删除所有与获取证书文件相关的行，我只是返回了一个经典的 RestTemplate 对象：

RestTemplate restTemplate = new RestTemplate();

以这种方式，我不再获得之前的异常（而是获得了预期的 SSL 异常，因为要执行我的调用，我需要此证书）。

那么……怎么了？我错过了什么？我该如何解决这个问题？

什么是好的解决方案？

  1. 要将证书直接嵌入到 .jar 文件中？ （在这种情况下，我将有一个多合一的解决方案）

  2. 指向文件系统的特定目录，我将在其中放置证书？ （也许会更好，因为如果将来证书发生变化，我可以简单地将其替换到文件系统中，避免重新编译和重新部署我的应用程序）

你怎么看？

【问题讨论】：

  • 您是否尝试将路径传递为“classpath:/static/certificate.pfx”？
  • 显示你的getHttpComponentsClientHttpRequestFactory方法
  • 这能解决你的问题stackoverflow.com/questions/44399422/… 吗？

标签： java spring spring-boot jar java-resources


【解决方案1】：

这个答案中的代码是一个猜测，因为我不知道getHttpComponentsClientHttpRequestFactory 里面是什么:)。但我认为，您可以通过以下方式解决问题：

  1. 将提供证书的方式从普通的File 更改为URL
  2. 使用ClassPathResource获取证书的URL

1。使用URL提供证书

我猜你正在使用使用 SSLContexts.custom() 返回的构建器创建的自定义 SSLContext，类似于：

SSLContexts.custom()
        .loadTrustMaterial(new File("/tmp/fred.zip"), "apples".toCharArray())
        .build();

您可以改用接受URL 的重载：

SSLContexts.custom()
        .loadTrustMaterial(new URL("...."), "apples".toCharArray())
        .build();

另见this答案

2。使用ClassPathResource获取URL

例如：

ClassPathResource resource = new ClassPathResource("/fred.pfx", SpringBootResourcesApplication.class);
URL url = resource.getURL();
  • fred.pfx 是我正在加载的文件。直接放在resources目录下
  • SpringBootResourcesApplication.class 是加载文件的类

这将在 IDE 和 jar 文件中工作

将所有东西连接在一起

public class SpringBootResourcesApplication {
    public static void main(String[] args) throws Exception {
        ClassPathResource resource = new ClassPathResource("/fred.pfx", SpringBootResourcesApplication.class);
        URL url = resource.getURL();

        System.out.println(url);

        SSLContext sslContext = SSLContexts.custom()
                .loadTrustMaterial(url, "apples".toCharArray())
                .build();
        System.out.println(sslContext);
    }
}
  • IDE 的输出： 
    file:/home/caco3/IdeaProjects/spring-boot-resources/target/classes/fred.pfx
javax.net.ssl.SSLContext@217ed35e
  • 来自罐子： 
    jar:file:/home/caco3/IdeaProjects/spring-boot-resources/target/spring-boot-resources-0.0.1-SNAPSHOT.jar!/BOOT-INF/classes!/fred.pfx
javax.net.ssl.SSLContext@3444d69d

为什么java.nio.file.FileSystemNotFoundException被抛出

Path.get 并不总是成功。 当您使用类似于以下代码的Path 获得URL 时：

URL resource = SpringBootResourcesApplication.class.getClassLoader().getResource("application.properties");

结果可能不同，例如：

  • 从 IDE 在我的情况下它是： 
    file:/home/caco3/IdeaProjects/spring-boot-resources/target/classes/application.properties
  • 来自 jar： 
    jar:file:/home/caco3/IdeaProjects/spring-boot-resources/target/spring-boot-resources-0.0.1-SNAPSHOT.jar!/BOOT-INF/classes!/application.properties

这些URIs 的处理方式不同：

  • file:/...URI可以成功转换为Path
  • 但 jar:file:/... 不能：它需要创建显式 FileSystem

这就是抛出异常的原因

【讨论】：

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