(以下所有内容都是根据官方文档学习。如果你对gradle有兴趣，希望你能直接学习官方文档，官方文档是最权威的。而且这样才能产生2份有意义的学习资料)
1.列举当前目录下的所有项目，包括子项目
qianhuis-Mac-mini:multproject qianhui$ gradle -q projects
------------------------------------------------------------
Root project
------------------------------------------------------------
Root project "multproject"
+--- Project ":api"
+--- Project ":services"
| +--- Project ":services:shared"
| --- Project ":services:webservice"
--- Project ":shared"
To see a list of the tasks of a project, run gradle <project-path>:tasks
For example, try running gradle :api:tasks
在gradle后加projects，就可以列举出所有的项目，从上面的结果可以看出来。该目录的根目录为multproject。下面包括了api／services／shared三个子项目。其中services下面又包含了2个子项目shared／webservice。
2.列举任务
qianhuis-Mac-mini:multproject qianhui$ gradle -q tasks
------------------------------------------------------------
All tasks runnable from root project - The shared API for the application
------------------------------------------------------------
Build tasks
-----------
assemble - Assembles the outputs of this project.
build - Assembles and tests this project.
buildDependents - Assembles and tests this project and all projects that depend on it.
buildNeeded - Assembles and tests this project and all projects it depends on.
classes - Assembles classes "main".
clean - Deletes the build directory.
jar - Assembles a jar archive containing the main classes.
testClasses - Assembles classes "test".
Build Setup tasks
-----------------
init - Initializes a new Gradle build. [incubating]
wrapper - Generates Gradle wrapper files. [incubating]
Documentation tasks
-------------------
javadoc - Generates Javadoc API documentation for the main source code.
Help tasks
----------
components - Displays the components produced by root project "multproject". [incubating]
dependencies - Displays all dependencies declared in root project "multproject".
dependencyInsight - Displays the insight into a specific dependency in root project "multproject".
help - Displays a help message.
projects - Displays the sub-projects of root project "multproject".
properties - Displays the properties of root project "multproject".
tasks - Displays the tasks runnable from root project "multproject" (some of the displayed tasks may belong to subprojects).
IDE tasks
---------
cleanEclipse - Cleans all Eclipse files.
cleanEclipseWtp - Cleans Eclipse wtp configuration files.
eclipse - Generates all Eclipse files.
eclipseWtp - Generates Eclipse wtp configuration files.
Verification tasks
------------------
check - Runs all checks.
test - Runs the unit tests.
To see all tasks and more detail, run with --all.
如果想再多的信息可以在后面加上--all，不过还是不要加的好，因为实在太多了。
3.搜索任务
qianhuis-Mac-mini:multproject qianhui$ gradle -q help --task test
Detailed task information for test
Paths
:api:test
:services:test
:shared:test
:services:shared:test
:services:webservice:test
Type
Test (org.gradle.api.tasks.testing.Test)
Options
--debug-jvm Enable debugging for the test process. The process is started suspended and listening on port 5005. [INCUBATING]
--tests Sets test class or method name to be included, "*" is supported.
Description
Runs the unit tests.
上面是以test为关键字搜索匹配项。
4.列举依赖
qianhuis-Mac-mini:multproject qianhui$ gradle -q dependencies api:dependencies
------------------------------------------------------------
Root project - The shared API for the application
------------------------------------------------------------
No configurations
------------------------------------------------------------
Project :api
------------------------------------------------------------
archives - Configuration for archive artifacts.
No dependencies
compile - Compile classpath for source set "main".
--- project :shared
default - Configuration for default artifacts.
--- project :shared
runtime - Runtime classpath for source set "main".
--- project :shared
testCompile - Compile classpath for source set "test".
+--- project :shared
--- junit:junit:4.11
--- org.hamcrest:hamcrest-core:1.3
testRuntime - Runtime classpath for source set "test".
+--- project :shared
--- junit:junit:4.11
--- org.hamcrest:hamcrest-core:1.3
例举出了api项目的依赖信息。
5.根据特定配置列举依赖
qianhuis-Mac-mini:multproject qianhui$ gradle -q dependencies api:dependencies --configuration testCompile
------------------------------------------------------------
Root project - The shared API for the application
------------------------------------------------------------
No configurations
------------------------------------------------------------
Project :api
------------------------------------------------------------
testCompile - Compile classpath for source set "test".
+--- project :shared
--- junit:junit:4.11
--- org.hamcrest:hamcrest-core:1.3
6.获取插入依赖
获取项目中哪个任务依赖groovy的jar包
qianhuis-Mac-mini:multproject qianhui$ gradle -q api:dependencyInsight --dependency groovy --configuration testCompile
No dependencies matching given input were found in configuration ":api:testCompile"
7.列举项目属性
qianhuis-Mac-mini:multproject qianhui$ gradle -q api:properties
------------------------------------------------------------
Project :api
------------------------------------------------------------
allprojects: [project ":api"]
ant: org.gradle.api.internal.project.DefaultAntBuilder@51cbc6c2
antBuilderFactory: org.gradle.api.internal.project.DefaultAntBuilderFactory@19661482
archivesBaseName: api
artifacts: org.gradle.api.internal.artifacts.dsl.DefaultArtifactHandler_Decorated@7ccc6fd4
asDynamicObject: org.gradle.api.internal.ExtensibleDynamicObject@51c2074e
assemble: task ":api:assemble"
baseClassLoaderScope: org.gradle.api.internal.initialization.DefaultClassLoaderScope@196dbbd1
binaries: [classes "main", classes "test"]
build: task ":api:build"
buildDependents: task ":api:buildDependents"
buildDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build
buildFile: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build.gradle
buildNeeded: task ":api:buildNeeded"
buildScriptSource: org.gradle.groovy.scripts.UriScriptSource@7dd26a3e
buildTasks: [build]
buildscript: org.gradle.api.internal.initialization.DefaultScriptHandler@13d4cfb
check: task ":api:check"
childProjects: {}
class: class org.gradle.api.internal.project.DefaultProject_Decorated
classLoaderScope: org.gradle.api.internal.initialization.DefaultClassLoaderScope@5f88f35f
classes: task ":api:classes"
clean: task ":api:clean"
cleanEclipse: task ":api:cleanEclipse"
cleanEclipseClasspath: task ":api:cleanEclipseClasspath"
cleanEclipseJdt: task ":api:cleanEclipseJdt"
cleanEclipseProject: task ":api:cleanEclipseProject"
cleanEclipseWtp: task ":api:cleanEclipseWtp"
compileJava: task ":api:compileJava"
compileTestJava: task ":api:compileTestJava"
components: [org.gradle.api.internal.java.JavaLibrary@182212f9]
configurationActions: org.gradle.configuration.project.DefaultProjectConfigurationActionContainer@650ba5cf
configurations: [configuration ":api:archives", configuration ":api:compile", configuration ":api:default",
configuration ":api:runtime", configuration ":api:testCompile", configuration ":api:testRuntime"]
convention: org.gradle.api.internal.plugins.DefaultConvention@5fb2ecdc
defaultArtifacts: org.gradle.api.internal.plugins.DefaultArtifactPublicationSet_Decorated@5bdc9099
defaultTasks: []
dependencies: org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler_Decorated@1446745
dependencyCacheDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build/dependency-cache
dependencyCacheDirName: dependency-cache
depth: 1
description: null
displayName: root project "multproject"
distsDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build/distributions
distsDirName: distributions
docsDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build/docs
docsDirName: docs
eclipse: org.gradle.plugins.ide.eclipse.model.EclipseModel_Decorated@6d995bec
eclipseClasspath: task ":api:eclipseClasspath"
eclipseJdt: task ":api:eclipseJdt"
eclipseProject: task ":api:eclipseProject"
eclipseWtp: task ":api:eclipseWtp"
ext: org.gradle.api.internal.plugins.DefaultExtraPropertiesExtension@6f621b2a
extensions: org.gradle.api.internal.plugins.DefaultConvention@5fb2ecdc
fileOperations: org.gradle.api.internal.file.DefaultFileOperations@11e59b87
fileResolver: org.gradle.api.internal.file.BaseDirFileResolver@7945c53e
gradle: build "multproject"
group: multproject
inheritedScope: org.gradle.api.internal.ExtensibleDynamicObject$InheritedDynamicObject@5398a7a5
jar: task ":api:jar"
javadoc: task ":api:javadoc"
libsDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build/libs
libsDirName: libs
logger: org.gradle.api.logging.Logging$LoggerImpl@4b266c83
logging: org.gradle.logging.internal.DefaultLoggingManager@479e3300
mayImplementMissingMethods: false
mayImplementMissingProperties: false
modelRegistry: org.gradle.model.internal.registry.DefaultModelRegistry@632669bb
module: org.gradle.api.internal.artifacts.ProjectBackedModule@79bc5432
name: api
parent: root project "multproject"
parentIdentifier: root project "multproject"
path: :api
plugins: [org.gradle.language.base.plugins.LifecycleBasePlugin@73258ce6, org.gradle.api.plugins.BasePlugin@385ec662,
org.gradle.api.plugins.ReportingBasePlugin@754348e8, org.gradle.language.base.plugins.LanguageBasePlugin@35677c16,
org.gradle.api.plugins.LegacyJavaComponentPlugin@2c8c4d3f, org.gradle.api.plugins.JavaBasePlugin@7ccd7637,
org.gradle.api.plugins.JavaPlugin@5b39746e, org.gradle.plugins.ide.eclipse.EclipsePlugin@211c9201,
org.gradle.plugins.ide.eclipse.EclipseWtpPlugin@6783c490, org.gradle.api.plugins.HelpTasksPlugin@690f268]
processOperations: org.gradle.api.internal.file.DefaultFileOperations@11e59b87
processResources: task ":api:processResources"
processTestResources: task ":api:processTestResources"
project: project ":api"
projectDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api
projectEvaluationBroadcaster: ProjectEvaluationListener broadcast
projectEvaluator: org.gradle.configuration.project.LifecycleProjectEvaluator@6ee7a6d7
projectRegistry: org.gradle.api.internal.project.DefaultProjectRegistry@2a7aa623
properties: {...}
rebuildTasks: [clean, build]
reporting: org.gradle.api.reporting.ReportingExtension_Decorated@5a31599e
reportsDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build/reports
repositories: [org.gradle.api.internal.artifacts.repositories.DefaultMavenArtifactRepository_Decorated@5df2c254]
resources: org.gradle.api.internal.resources.DefaultResourceHandler@6cb448fb
rootDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject
rootProject: root project "multproject"
runtimeClasspath: file collection
scriptHandlerFactory: org.gradle.api.internal.initialization.DefaultScriptHandlerFactory@30238e7e
scriptPluginFactory: org.gradle.configuration.DefaultScriptPluginFactory@6e600ae2
serviceRegistryFactory: org.gradle.internal.service.scopes.ProjectScopeServices$5@636ab40a
services: ProjectScopeServices
sourceCompatibility: 1.7
sourceSets: [source set "main", source set "test"]
sources: [source set "main", source set "test"]
standardOutputCapture: org.gradle.logging.internal.DefaultLoggingManager@479e3300
state: project state "EXECUTED"
status: integration
subprojects: []
targetCompatibility: 1.7
tasks: [task ":api:assemble", task ":api:build", task ":api:buildDependents", task ":api:buildNeeded",
task ":api:check", task ":api:classes", task ":api:clean", task ":api:cleanEclipse", task ":api:cleanEclipseClasspath",
task ":api:cleanEclipseJdt", task ":api:cleanEclipseProject", task ":api:cleanEclipseWtp", task ":api:compileJava",
task ":api:compileTestJava", task ":api:eclipse", task ":api:eclipseClasspath", task ":api:eclipseJdt",
task ":api:eclipseProject", task ":api:eclipseWtp", task ":api:jar", task ":api:javadoc", task ":api:processResources",
task ":api:processTestResources", task ":api:properties", task ":api:test", task ":api:testClasses"]
test: task ":api:test"
testClasses: task ":api:testClasses"
testReportDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build/reports/tests
testReportDirName: tests
testResultsDir: /Users/qianhui/Documents/Developer/gradle_project/0104/multproject/api/build/test-results
testResultsDirName: test-results
version: unspecified
8.获取构建过程中的时间信息--profile
ianhuis-Mac-mini:multproject qianhui$ gradle build --profile
:shared:compileJava UP-TO-DATE
:shared:processResources UP-TO-DATE
:shared:classes UP-TO-DATE
:shared:jar UP-TO-DATE
:api:compileJava UP-TO-DATE
:api:processResources UP-TO-DATE
:api:classes UP-TO-DATE
:api:jar UP-TO-DATE
:api:assemble UP-TO-DATE
: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 UP-TO-DATE
:services:compileJava UP-TO-DATE
:services:processResources UP-TO-DATE
:services:classes UP-TO-DATE
:services:jar UP-TO-DATE
:services:assemble UP-TO-DATE
: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 UP-TO-DATE
:shared:assemble UP-TO-DATE
: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 UP-TO-DATE
:services:shared:compileJava UP-TO-DATE
:services:shared:processResources UP-TO-DATE
:services:shared:classes UP-TO-DATE
:services:shared:jar UP-TO-DATE
:services:shared:assemble UP-TO-DATE
: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 UP-TO-DATE
:services:webservice:compileJava UP-TO-DATE
:services:webservice:processResources UP-TO-DATE
:services:webservice:classes UP-TO-DATE
:services:webservice:jar UP-TO-DATE
:services:webservice:assemble UP-TO-DATE
: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 UP-TO-DATE
BUILD SUCCESSFUL
Total time: 5.677 secs
在项目的build/reports/profile下会生成一个html文件，打开
可以看到一个报告。
9.dry run
就是模拟执行过程，但是并没有执行
qianhuis-Mac-mini:multproject qianhui$ gradle -m clean
:api:clean SKIPPED
:services:clean SKIPPED
:shared:clean SKIPPED
:services:shared:clean SKIPPED
:services:webservice:clean SKIPPED
BUILD SUCCESSFUL
会发现项目目录中里的build目录并没有被删除。而且上面的输出信息也可以看出SKIPPED。