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我有一个在 AKS 上运行的 tomcat 应用程序。我创建了一堆环境变量，所以当 tomcat 启动时，它可以替换该值。当我printenv在容器中使用时，它会显示通过 deployment.yaml 设置的所有环境变量。

但是，当tomcat启动时，它仍然无法识别环境变量，并说这样的话：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'PACSDemoController': Invocation of init method failed; nested exception is java.net.URISyntaxException: Illegal character in path at index 1: ${widgetsRestBaseUrl}

这是我的课：

public class BaseDemoController {  
    protected URI restUri;

    @Resource(name = "widgetsRestBaseUrl")
    protected String widgetsRestBaseUrl;

    @Resource(name = "widgetsServerUploaderUrl")
    protected String widgetsServerUploaderUrl;

    @Resource(name = "widgetsServerViewerUrl")
    protected String widgetsServerViewerUrl;

    @Resource(name = "widgetsServerStudySelectionUrl")
    protected String widgetsServerStudySelectionUrl;
    
    @Resource(name = "widgetsServerHieStudySelectionUrl")
    protected String widgetsServerHieStudySelectionUrl;

    @Resource(name = "widgetsServerPatientHistoryUrl")
    protected String widgetsServerPatientHistoryUrl;
    
    @Resource(name = "widgetsServerShareImageUrl")
    protected String widgetsServerShareImageUrl;

    @Resource(name = "widgetServerPacsConfigUrl")
    protected String widgetServerPacsConfigUrl;
    @Resource(name = "apiNominate")
    protected String apiNominate;

    @Resource(name = "apiPacsConfig")
    protected String apiPacsConfig;
    @Resource(name = "widgetsServerNominatePacsUrl")
    protected String widgetsServerNominatePacsUrl;
    

    @Resource(name = "apiBaseUrl")
    protected String apiBaseUrl;    

    @Resource(name = "widgetsBasicPacsConfigUrl")
    protected String widgetsBasicPacsConfigUrl;
    
    @Resource(name = "auth0Domain")
    protected String auth0Domain;    
    
    @Resource(name = "widgetAuth0Audience")
    protected String widgetAuth0Audience;    
    
    @Resource(name = "apiAuth0Audience")
    protected String apiAuth0Audience;    
   
    @Autowired
    protected EpicTokenService epicTokenService;

    @PostConstruct
    public void initialize() throws URISyntaxException {
        restUri = new URI(widgetsRestBaseUrl);
    }

所有这些资源都来自jndi.xml：

?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd">

    <bean id="apiBaseUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${apiBaseUrl}"/>
    </bean>

    <bean id="widgetsRestBaseUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsRestBaseUrl}"/>
    </bean>

    <bean id="widgetsServerUploaderUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsServerUploaderUrl}"/>
    </bean>

    <bean id="widgetsServerViewerUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsServerViewerUrl}"/>
    </bean>

    <bean id="widgetsServerStudySelectionUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsServerStudySelectionUrl}"/>
    </bean>

    <bean id="widgetsServerPatientHistoryUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsServerPatientHistoryUrl}"/>
    </bean>

    <bean id="widgetsServerShareImageUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsServerShareImageUrl}"/>
    </bean>

    <bean id="widgetServerPacsConfigUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetServerPacsConfigUrl}"/>
    </bean>

    <bean id="apiPacsConfig" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${apiPacsConfig}"/>
    </bean>

    <bean id="apiNominate" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${apiNominate}"/>
    </bean>

    <bean id="widgetsServerNominatePacsUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsServerNominatePacsUrl}"/>
    </bean>

    <bean id="widgetsBasicPacsConfigUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsBasicPacsConfigUrl}"/>
    </bean>

    <bean id="widgetsServerHieStudySelectionUrl" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetsServerHieStudySelectionUrl}"/>
    </bean>

    <bean id="apiAuth0Audience" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${apiAuth0Audience}"/>
    </bean>

    <bean id="widgetAuth0Audience" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${widgetAuth0Audience}"/>
    </bean>

    <bean id="auth0Domain" class="java.lang.String" factory-method="valueOf">
        <constructor-arg value="${auth0Domain}"/>
    </bean>

</beans>

我不确定为什么这不起作用。我有两个项目几乎完全相同，一个项目没有问题。有什么建议吗？

更新：PACDemoController 从 BaseDemoController 扩展：

@Controller
public class PACSDemoController extends BaseDemoController {

并且错误来自 BaseDemoController 中的 @PostConstruct。这是日志：

Caused by: java.net.URISyntaxException: Illegal character in path at index 1: ${widgetsRestBaseUrl}
    at java.net.URI$Parser.fail(URI.java:2848)
    at java.net.URI$Parser.checkChars(URI.java:3021)
    at java.net.URI$Parser.parseHierarchical(URI.java:3105)
    at java.net.URI$Parser.parse(URI.java:3063)
    at java.net.URI.<init>(URI.java:588)
    at com.accelarad.smr.widgets.demo.BaseDemoController.initialize(BaseDemoController.java:90)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:307)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136)
    ... 27 more
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1 回答 1

2

Tomcat doesn't have anything to do with the replacement of ${...} with the value of the corresponding system environment variable. It only replaces those values in its own configuration files (server.xml, various context.xml descriptors, etc.).

If you want Spring to replace those property placeholders ${...}, you need to add a PropertySourcesPlaceholderConfigurer to your application context. This can be done through:

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:property-placeholder />
    ...
</beans>

However it is much easier to inject the property values directly from the Spring Environment using the @Value annotation instead of creating hundreds of beans of type java.lang.String.

于 2021-05-18T22:21:26.660 回答