Ear 外掛程式新增了組裝 Web 應用程式 EAR 檔案的支援。它新增了一個預設的 EAR 歸檔任務。它不需要 Java 外掛程式,但對於也使用 Java 外掛程式的專案,它會停用預設的 JAR 歸檔產生。
用法
若要使用 Ear 外掛程式,請在您的建置腳本中包含以下內容
plugins {
ear
}
plugins {
id 'ear'
}
專案版面配置
. └── src └── main └── application (1)
1 | Ear 資源,例如 META-INF 目錄 |
相依性管理
Ear 外掛程式新增了兩個相依性配置:deploy
和 earlib
。deploy
配置中的所有相依性都放置在 EAR 歸檔的根目錄中,並且是非遞移性的。earlib
配置中的所有相依性都放置在 EAR 歸檔的 'lib' 目錄中,並且是遞移性的。
慣例屬性 (ear)
appDirName
—String
-
應用程式來源目錄的名稱,相對於專案目錄。預設值:`src/main/application`。
libDirName
—String
-
在產生的 EAR 內部的 lib 目錄名稱。預設值:`lib`。
deploymentDescriptor
— DeploymentDescriptor-
產生部署描述符檔案 (例如
application.xml
) 的中繼資料。預設值:名為application.xml`
且具有合理預設值的部署描述符。如果此檔案已存在於 `appDirName/META-INF 中,則將使用現有的檔案內容,並且會忽略ear.deploymentDescriptor
中的明確配置。 generateDeploymentDescriptor
—Boolean
-
指定是否應產生 deploymentDescriptor。預設值:`true`。
這些屬性由 EarPluginConvention 慣例物件提供。
透過外掛程式的慣例屬性配置 ear 任務已棄用。如果您需要從預設值變更,請直接配置適當的任務。如果您想要配置專案中的所有 Ear
任務,請使用 tasks.withType(Ear.class).configureEach(…)。
Ear
Ear 任務的預設行為是將 src/main/application
的內容複製到歸檔的根目錄。如果您的 application
目錄不包含 META-INF/application.xml
部署描述符,則會為您產生一個。
API 文件中的 Ear 類別具有其他實用資訊。
自訂
以下範例包含最重要的自訂選項
plugins {
ear
java
}
repositories { mavenCentral() }
dependencies {
// The following dependencies will be the ear modules and
// will be placed in the ear root
deploy(project(path = ":war", configuration = "war"))
// The following dependencies will become ear libs and will
// be placed in a dir configured via the libDirName property
earlib(group = "log4j", name = "log4j", version = "1.2.15", ext = "jar")
}
tasks.ear {
appDirectory = file("src/main/app") // use application metadata found in this folder
libDirName = "APP-INF/lib" // put dependent libraries into APP-INF/lib inside the generated EAR
deploymentDescriptor { // custom entries for application.xml:
// fileName = "application.xml" // same as the default value
// version = "6" // same as the default value
applicationName = "customear"
initializeInOrder = true
displayName = "Custom Ear" // defaults to project.name
// defaults to project.description if not set
description = "My customized EAR for the Gradle documentation"
// libraryDirectory = "APP-INF/lib" // not needed, above libDirName setting does this
// module("my.jar", "java") // won't deploy as my.jar isn't deploy dependency
// webModule("my.war", "/") // won't deploy as my.war isn't deploy dependency
securityRole("admin")
securityRole("superadmin")
withXml { // add a custom node to the XML
asElement().apply {
appendChild(ownerDocument.createElement("data-source").apply { textContent = "my/data/source" })
}
}
}
}
plugins {
id 'ear'
id 'java'
}
repositories { mavenCentral() }
dependencies {
// The following dependencies will be the ear modules and
// will be placed in the ear root
deploy project(path: ':war', configuration: 'war')
// The following dependencies will become ear libs and will
// be placed in a dir configured via the libDirName property
earlib group: 'log4j', name: 'log4j', version: '1.2.15', ext: 'jar'
}
tasks.named('ear') {
appDirectory = file('src/main/app') // use application metadata found in this folder
libDirName = 'APP-INF/lib' // put dependent libraries into APP-INF/lib inside the generated EAR
deploymentDescriptor { // custom entries for application.xml:
// fileName = "application.xml" // same as the default value
// version = "6" // same as the default value
applicationName = "customear"
initializeInOrder = true
displayName = "Custom Ear" // defaults to project.name
// defaults to project.description if not set
description = "My customized EAR for the Gradle documentation"
// libraryDirectory = "APP-INF/lib" // not needed, above libDirName setting does this
// module("my.jar", "java") // won't deploy as my.jar isn't deploy dependency
// webModule("my.war", "/") // won't deploy as my.war isn't deploy dependency
securityRole("admin")
securityRole("superadmin")
withXml { provider -> // add a custom node to the XML
provider.asNode().appendNode("data-source", "my/data/source")
}
}
}
您也可以使用 Ear 任務提供的自訂選項,例如 from
和 metaInf
。
使用自訂描述符檔案
您可能已經在 application.xml
檔案中具有適當的設定,並且想要使用該檔案而不是配置建置腳本的 ear.deploymentDescriptor
區段。為了滿足該目標,請將 META-INF/application.xml
放置在來源資料夾內的正確位置(請參閱 appDirName
屬性)。將使用檔案內容,並且會忽略 ear.deploymentDescriptor
中的明確配置。