上一篇gradle學習文章學到構建java專案，這一篇來看看怎麼講上一次的java專案變成eclipse專案

1.標示eclipse專案

apply plugin: 'eclipse'

build.gradle如下

apply plugin: 'java'
apply plugin:'eclipse'
repositories{
	mavenCentral()
}

dependencies {
	compile group:'commons-collections',name:'commons-collections',version:'3.2'
	testCompile group:'junit',name:'junit',version:'4.0+'
}

sourceCompatibility = 1.5
version = '2.0'
jar {
	manifest {
		attributes 'Implementation-Title':'Gradle Quickstart',
			'Implementation-Version':version
	}
}

test {
	systemProperties 'property':'value'
}

uploadArchives {
	repositories {
		flatDir {
			dirs 'repos'
		}
	}
}
 

執行gradle eclipse構建專案

<pre name="code" class="html">qianhuis-Mac-mini:1228_1 qianhui$ gradle eclipse
:eclipseClasspath
Download https://repo1.maven.org/maven2/commons-collections/commons-collections/3.2/commons-collections-3.2.pom
Download https://repo1.maven.org/maven2/junit/junit/4.0/junit-4.0.pom
Download https://repo1.maven.org/maven2/commons-collections/commons-collections/3.2/commons-collections-3.2.jar
Download https://repo1.maven.org/maven2/junit/junit/4.0/junit-4.0.jar
Download https://repo1.maven.org/maven2/commons-collections/commons-collections/3.2/commons-collections-3.2-sources.jar
Download https://repo1.maven.org/maven2/junit/junit/4.0/junit-4.0-sources.jar
:eclipseJdt
:eclipseProject
:eclipse

BUILD SUCCESSFUL

Total time: 2 mins 33.783 secs
 

但是目錄結構沒發現什麼改變，希望隨著學習的深入能發現什麼端倪。

2.多重專案構建

專案目錄結構如下：

multprojec目錄下含有3個專案［api,services,shared］,services專案下又含有［shared，webservice］

3.settings.gradle

為了構建多重專案，需要在多重專案的根目錄定義一個檔案,包含所有的子專案。該檔名必須定義為settings.gradle

qianhuis-Mac-mini:multproject qianhui$ touch settings.gradle
qianhuis-Mac-mini:multproject qianhui$ 
 

include "shared","api","services:webservice","services:shared"

4.配置注入

使用configuration injection來管理所有的專案，主專案像一個容器，通過subprojects方法能夠遍歷所有的子專案,然後為每一個專案注入特殊的配置資訊。這樣我們就能夠很容易的為依賴和壓縮包定義配置內容。如下所示，我們首先根據settings.gradle裡的配置資訊得到所有的子專案，然後逐個位每個專案注入下面的配置。

subprojects{
        apply plugin:'java'
        apply plugin:'eclipse-wtp'

        repositories{
                mavenCentral()
        }
        dependencies{
                testCompile 'junit:junit:4.11'
        }
        jar{
                manifest.attributes provider:'gradle'
        }

}

qianhuis-Mac-mini:multproject qianhui$ gradle build
:api:compileJava UP-TO-DATE
:api:processResources UP-TO-DATE
:api:classes UP-TO-DATE
:api:jar
:api:assemble
:api:compileTestJava UP-TO-DATE
:api:processTestResources UP-TO-DATE
:api:testClasses UP-TO-DATE
:api:test UP-TO-DATE
:api:check UP-TO-DATE
:api:build
:services:compileJava UP-TO-DATE
:services:processResources UP-TO-DATE
:services:classes UP-TO-DATE
:services:jar
:services:assemble
:services:compileTestJava UP-TO-DATE
:services:processTestResources UP-TO-DATE
:services:testClasses UP-TO-DATE
:services:test UP-TO-DATE
:services:check UP-TO-DATE
:services:build
:shared:compileJava UP-TO-DATE
:shared:processResources UP-TO-DATE
:shared:classes UP-TO-DATE
:shared:jar
:shared:assemble
:shared:compileTestJava UP-TO-DATE
:shared:processTestResources UP-TO-DATE
:shared:testClasses UP-TO-DATE
:shared:test UP-TO-DATE
:shared:check UP-TO-DATE
:shared:build
:services:shared:compileJava UP-TO-DATE
:services:shared:processResources UP-TO-DATE
:services:shared:classes UP-TO-DATE
:services:shared:jar
:services:shared:assemble
:services:shared:compileTestJava UP-TO-DATE
:services:shared:processTestResources UP-TO-DATE
:services:shared:testClasses UP-TO-DATE
:services:shared:test UP-TO-DATE
:services:shared:check UP-TO-DATE
:services:shared:build
:services:webservice:compileJava UP-TO-DATE
:services:webservice:processResources UP-TO-DATE
:services:webservice:classes UP-TO-DATE
:services:webservice:jar
:services:webservice:assemble
:services:webservice:compileTestJava UP-TO-DATE
:services:webservice:processTestResources UP-TO-DATE
:services:webservice:testClasses UP-TO-DATE
:services:webservice:test UP-TO-DATE
:services:webservice:check UP-TO-DATE
:services:webservice:build

BUILD SUCCESSFUL

Total time: 6.571 secs

相應的子專案目錄下都生成了jar包。但是要注意上面的配置不會對root project產生作用。

5.專案之間的依賴

比如A專案依賴B專案，那麼在A專案下定義一個build.gradle 。寫法如下:

dependencies{
      compile project(':B')
}

6.調配專案

task dist(type: Zip) {
    dependsOn spiJar
    from 'src/dist'
    into('libs') {
        from spiJar.archivePath
        from configurations.runtime
    }
}
artifacts {
   archives dist
}