替换我的 Spring Boot 中的属性 application.yml
我已经添加:
processResources {
filesMatching("**/application.yml") {
expand(project.properties)
}
}
替换失败但给出
MissingPropertyException
:Caused by: groovy.lang.MissingPropertyException: No such property: OPENSHIFT_MYSQL_DB_HOST for class: SimpleTemplateScript1
at SimpleTemplateScript1.run(SimpleTemplateScript1.groovy:49)
at org.gradle.api.internal.file.copy.FilterChain$3.transform(FilterChain.java:95)
at org.gradle.api.internal.file.copy.FilterChain$3.transform(FilterChain.java:84)
at org.gradle.api.internal.ChainingTransformer.transform(ChainingTransformer.java:37)
at org.gradle.api.internal.file.copy.FilterChain.transform(FilterChain.java:39)
at org.gradle.api.internal.file.copy.FilterChain.transform(FilterChain.java:46)
at org.gradle.api.internal.file.copy.DefaultFileCopyDetails.open(DefaultFileCopyDetails.java:86)
at org.gradle.api.internal.file.AbstractFileTreeElement.copyTo(AbstractFileTreeElement.java:56)
at org.gradle.api.internal.file.copy.DefaultFileCopyDetails.copyTo(DefaultFileCopyDetails.java:94)
at org.gradle.api.internal.file.AbstractFileTreeElement.copyFile(AbstractFileTreeElement.java:93)
at org.gradle.api.internal.file.AbstractFileTreeElement.copyTo(AbstractFileTreeElement.java:74)
... 81 more
原来我的
application.yml
包含:url: jdbc:mysql://${OPENSHIFT_MYSQL_DB_HOST}:${OPENSHIFT_MYSQL_DB_PORT}/${OPENSHIFT_APP_NAME}
请注意,这些 Openshift 变量仅在 Openshift 生产环境中知道,但在本地以开发模式运行时不知道。
如 http://www.gradle.org/docs/current/dsl/org.gradle.api.tasks.Copy.html 中所述:
You can also include arbitrary Groovy code in the file, such as ${version ?: 'unknown'}
所以我改变了我的application.yml
到:url: jdbc:mysql://${OPENSHIFT_MYSQL_DB_HOST ?: ''}:${OPENSHIFT_MYSQL_DB_PORT ?: ''}/${OPENSHIFT_APP_NAME ?: ''}
但这给出了相同的
MissingPropertyException
.我在这里错过了什么吗?
最佳答案
Gradle expand
${..}
样式与相同的 Spring 属性占位符样式冲突,因此需要转义,如 \${..}
.
这已添加到 Spring Boot 文档中:https://github.com/spring-projects/spring-boot/commit/c0c67f2593dbfd17aa304b43f4da3a3678fa58eb
关于gradle - 在 Gradle processResources 期间扩展 application.yml 会产生 MissingPropertyException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29153830/