java - 无法从 War 文件外部找到 application.properties 文件

Question

正在将 application.properties 文件外部化到 side war 之外。当我通过 jenkins 创建 war 文件时显示错误。

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2019-11-28 18:06:07.900 ERROR 22612 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :

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APPLICATION FAILED TO START

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Description:

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine a suitable driver class

Action:

Consider the following: If you want an embedded database (H2, HSQL or Derby), please put it on the classpath. If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

2019-11-28 18:06:07.909 ERROR 22612 --- [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener@233795b6] to prepare test instance [com.assessmentAggregator.api.AssessmentAggregatorApiApplicationTests@74024f3]

java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:125) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:108) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:246) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227) [spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) [spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) [spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246) [spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) [spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12] at

为了外部化属性文件，我使用了这段代码。

@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
    return builder
            .properties("spring.config.name:" + AppConstants.Config.APPLICATION_PROPERTY_NAME,
                    "spring.config.location:" + AppConstants.Config.APPLICATION_PROPERTY_SOURCE_PATH)
            .sources(AssessmentAggregatorApiApplication.class);
}

和值 AppConstants.Config.APPLICATION_PROPERTY_NAME= String APPLICATION_PROPERTY_NAME = "foxmatrixapp.properties";<br/> AppConstants.Config.APPLICATION_PROPERTY_SOURCE_PATH=String APPLICATION_PROPERTY_SOURCE_PATH = "file:////mnt/assessment_aggregator/data/pdf/"; 并在 pom.xml 中添加了此代码用于排除 application.properties 的文件我使用的war文件中的文件。

 <resources>
     <resource>
        <directory>src/main/resources</directory>
        <filtering>true</filtering>
        <excludes>
            <exclude>**/*.properties</exclude>
        </excludes>
    </resource> 
   </resources>

Answer 1

您可以使用放置在目标文件夹中的另一个属性源和点。

例如

@PropertySources({@PropertySource(value="file:somefolder/conf/bootstrap.properties", ignoreResourceNotFound=true), 
    @PropertySource(value="file:conf/bootstrap.properties", ignoreResourceNotFound=true)})

在保存在somefolder/conf中的服务器文件中，然后加载文件中定义的属性。

@Value("${datasource.url}")
private String url;

@Value("${datasource.username}")
private String username;

@Value("${datasource.password}")
private String password;

一旦加载，就可以在任何地方使用。

ignoreResourceNotFound=true放置的原因是如果找不到属性，则不会发生异常，这都是基于场景的。您可以改回 false