Question

我有一个Spring Boot应用程序，该应用程序打包为WAR，并部署到了tomcat中。由于存在一些遗留问题，因此采用了这种方式进行部署。

我在将application.properties外部化时遇到问题
DevOps团队要求文件位于/ app / shared / conf /
下我发现了有关此主题的许多问题，但似乎没有一个解决方案...
这是我到目前为止尝试过的：

添加到tomcat的Context.xml：

<Parameter name="spring.config.location" value="/app/shared/conf/application.properties" />

添加到startup.sh：

export spring_config_location=/app/shared/conf/

添加到startup.sh：

export SPRING_CONFIG_LOCATION=/app/shared/conf/application.properties

添加到startup.sh中，并在SecurityConfig上进行设置，从而扩展了WebSecurityConfigurerAdapter

CLASSPATH=/app/shared/conf/
@PropertySource("classpath:application.properties")

已添加到应用程序主类：

 System.setProperty("spring.config.location", "/app/shared/conf/application.properties");

添加到SecurityConfig扩展了WebSecurityConfigurerAdapter

@PropertySource("file:/app/shared/conf/application.properties")

这是我不断收到的错误：

 .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::             (v2.2.0.M1)

11-Jun-2019 02:54:22.034 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/prntPrtl]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:986)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThrexeroxoolExecutor.runWorker(ThrexeroxoolExecutor.java:1142)
    at java.util.concurrent.ThrexeroxoolExecutor$Worker.run(ThrexeroxoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.xerox.printHub.app.PrinterPortal]; nested exception is java.io.FileNotFoundException: class path resource [application.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.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:785)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:407)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:322)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:157)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:137)
    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91)
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5204)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 10 more
Caused by: java.io.FileNotFoundException: class path resource [application.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.loxeroxroperties(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:191)
    at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:295)
    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)
    ... 26 more

Answer 1

documentation有几个重要说明：

spring.config.name和spring.config.location很早就用于确定必须加载哪些文件，因此必须将它们定义为环境属性（通常是OS环境变量，系统属性或命令）行参数）。

和

如果spring.config.location包含目录（而不是文件），则它们应以/结尾（并且在运行时，应在加载之前附加从spring.config.name生成的名称，包括特定于配置文件的文件）名称）。在spring.config.location中指定的文件按原样使用，不支持特定于配置文件的变体，并且会被任何特定于配置文件的属性覆盖。

和

使用spring.config.location配置自定义配置位置时，它们将替换默认位置。

最后

如果您在spring.config.location中指定了任何文件，则不考虑这些文件的特定于配置文件的变体。如果您还想使用特定于配置文件的属性，请使用spring.config.location中的目录。

所以

使用目录而不是spring.config.location中的文件
将目录添加到默认位置，除非不需要它们。
确保目录以斜杠结尾。
您还需要使用协议file:来引用类路径之外的文件。

总之，这应该可行：在Tomcat的setenv.sh脚本中导出环境变量

export SPRING_CONFIG_LOCATION=classpath:/,classpath:/config/,file:./,file:./config/,file:/app/shared/conf/

或使用系统属性（-Dspring.config.location）或命令行标志（--spring.config.location）。

Tomcat中的Spring Boot WAR-外部化application.properties

1 个答案: