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gradle学习(5)-创建eclipse项目

上一篇gradle学习文章学到构建java项目，这一篇来看看怎么讲上一次的java项目变成eclipse项目

1.标示eclipse项目

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"
		}
	}
}

执行gradle eclipse构建项目

<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

但是目录结构没发现什么改变，希望随着学习的深入能发现什么端倪。

2.多重项目构建

项目目录结构如下：

multprojec目录下含有3个项目［api,services,shared］,services项目下又含有［shared，webservice］

3.settings.gradle

为了构建多重项目，需要在多重项目的根目录定义一个文件,包含所有的子项目。该文件名必须定义为settings.gradle

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

在该文件中用include来包含所有的子项目

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

4.配置注入

使用configuration injection来管理所有的项目，主项目像一个容器，通过subprojects方法能够遍历所有的子项目,然后为每一个项目注入特殊的配置信息。这样我们就能够很容易的为依赖和压缩包定义配置内容。如下所示，我们首先根据settings.gradle里的配置信息得到所有的子项目，然后逐个位每个项目注入下面的配置。

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

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

}

这个时候在根项目下执行gradle build，你会发现它为每个项目都做了构建

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

相应的子项目目录下都生成了jar包。但是要注意上面的配置不会对root project产生作用。

5.项目之间的依赖

比如A项目依赖B项目，那么在A项目下定义一个build.gradle 。写法如下:

dependencies{
      compile project(":B")
}

那么在A项目构建前，会先构建B项目。然后将B项目的jar包作为A项目的依赖jar，构建A的jar包。

6.调配项目

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

具体的信息学习完再讲。暂时我也不清楚

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