运行Java程序，其中配置文件位于其他目录中

Question

我正在运行一个Java程序，我的程序在jar文件（我创建的可执行jar）中，因此将其命名为Test.jar 我的程序需要config.properties文件中存在的一些属性，我没有将其包含在jar中，但将其保存在名为conf的目录中 现在，我需要将这些配置文件添加到classpath中，以便程序在运行时可以具有这些属性。

但是问题是，在我的程序执行期间找不到属性文件，但未找到其引发文件异常。我正在使用Spring 5，并使用注释@PropertySource（{“ classpath：config.properties”，“ classpath：application.properties”}）阅读配置 因此，理想情况下，如果我将配置放在类路径中，则应读取该内容。

n.b-在属性文件位于资源目​​录中的情况下，使用eclipse运行程序没有问题

我从命令行以- java -cp“ Test.jar; conf *” com.test.TestMain

我收到文件找不到异常

我的目录结构是TestCode目录，里面有conf dir和Test.jar文件，我从TestCode目录运行。

我的Maven构建结构如下所示，不确定是否与Maven有关

<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>**/*.properties</exclude>
<exclude>**/log4j2.xml</exclude>
</excludes>
<filtering>false</filtering>
</resource>
</resources>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>com.test.TestMain</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>copy-resources</id>
<phase>install</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/conf</outputDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins> 
</pluginManagement>
</build>

我得到的例外是

Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class 
[com.test.AppConfig]; nested exception is java.io.FileNotFoundException: class path resource [config.properties] cannot be opened because it does not exist
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:181)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:88)
at com.test.TestMain.main(TestMain.java:19)
Caused by: java.io.FileNotFoundException: class path resource [config.properties] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180)
at org.springframework.core.io.support.EncodedResource.getInputStream(EncodedResource.java:159)
at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:99)
at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:73)
at org.springframework.core.io.support.PropertiesLoaderUtils.loadProperties(PropertiesLoaderUtils.java:59)
at org.springframework.core.io.support.ResourcePropertySource.<init>(ResourcePropertySource.java:67)
at org.springframework.core.io.support.DefaultPropertySourceFactory.createPropertySource(DefaultPropertySourceFactory.java:37)
at org.springframework.context.annotation.ConfigurationClassParser.processPropertySource(ConfigurationClassParser.java:452)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:271)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:199)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167)

Answer 1

这是在Windows还是Linux上运行？因为-cp的分隔符对于Windows是分号，对于Unix是冒号。 您是否尝试过java -Dspring.config.location = / conf / -jar Test.jar？对于您所解释的需求，这可能更简单。