先讲基本步骤，如下：
去GitHub中下载spring framework的源码，/spring-projects/spring-framework/releases
下载3.2.X其中的一个版本;&
安装Gradle软件，官网下载，解压即可，设置GRADLE_HOME,和PATH。
命令行中运行gradle -v，检查一下是否正确安装配置；
命令行中运行spring framework根目录下的import-into-eclipse.bat
连续两次回车，就可以开始自动构建；
中间出现停止不前的情况里，按ctrl+c终止，再运行就可以进行下去；
过程需要花些时间（几个小时都有可能），视下载各种依赖jar包和dom文件的速度而定；
在Eclipse菜单File-&import选择General下面的Exsiting projects into workspace，这样就导入完成了。
如果你按上述步骤能一次成功的话，那不仅是你运气，而且RP极高。反正我没有，而且还折腾了好多次才成功能。
问题有以下几个：
问题一：spring-framework-4.0.0.M3要用jdk1.8
如果你习愦于什么都下最新版的，那么你肯定想都没想就下了spring-framework-4.0.0.M3，而且又那么不好采，正好没看README，那么问题马上就来了，直接报"-XX:MaxMetaspaceSize=1024m"及"could not create the java Virtual machine"的错误。
查看build.gradle和gradlew.bat中，可以找出原因：
build.gradle中：
Java代码&&
compileJava&{&&
&&&&&&&&sourceCompatibility=1.6&&
&&&&&&&&targetCompatibility=1.6&&
&&&&compileTestJava&{&&
&&&&&&&&sourceCompatibility=1.8&&
&&&&&&&&targetCompatibility=1.8&&
&可以看出这个版本的test代码要求用1.8。
gradlew.bat中
Java代码&&
set&GRADLE_OPTS=-XX:MaxMetaspaceSize=1024m&-Xmx1024m&-XX:MaxHeapSize=256m&%GRADLE_OPTS%&&
&其中-XX:MaxMetaspaceSize是1.8的写法。
所以如果下载的是4.0的版本，最好把jdk也升级到1.8，要不就下载一下3.2.x的版本就好了。
问题2：在build过程中，出现heap内存溢出情况
错误信息如下：
Java代码&&
FAILURE:&Build&failed&with&an&exception.&&
*&What&went&wrong:&&
Execution&failed&for&task&':referencePdf'.&&
&&GC&overhead&limit&exceeded&&
Run&with&--info&or&--debug&option&to&get&more&log&output.&&
*&Exception&is:&&
org.gradle.api.tasks.TaskExecutionException:&Execution&failed&for&task&':referen&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.ex&&
ecuteActions(ExecuteActionsTaskExecuter.java:68)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.ex&&
ecute(ExecuteActionsTaskExecuter.java:46)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExec&&
uter.execute(PostExecutionAnalysisTaskExecuter.java:34)&&
&&&&&&&&at&org.gradle.api.internal.changedetection.CacheLockHandlingTaskExecuter&&
$1.run(CacheLockHandlingTaskExecuter.java:34)&&
&&&&&&&&at&org.gradle.internal.Factories$1.create(Factories.java:22)&&
&&&&&&&&at&org.gradle.cache.internal.DefaultCacheAccess.longRunningOperation(Def&&
aultCacheAccess.java:179)&&
&&&&&&&&at&org.gradle.cache.internal.DefaultCacheAccess.longRunningOperation(Def&&
aultCacheAccess.java:232)&&
&&&&&&&&at&org.gradle.cache.internal.DefaultPersistentDirectoryStore.longRunning&&
Operation(DefaultPersistentDirectoryStore.java:138)&&
&&&&&&&&at&org.gradle.api.internal.changedetection.DefaultTaskArtifactStateCache&&
Access.longRunningOperation(DefaultTaskArtifactStateCacheAccess.java:83)&&
&&&&&&&&at&org.gradle.api.internal.changedetection.CacheLockHandlingTaskExecuter&&
.execute(CacheLockHandlingTaskExecuter.java:32)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.exec&&
ute(SkipUpToDateTaskExecuter.java:55)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execut&&
e(ValidatingTaskExecuter.java:57)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecu&&
ter.execute(SkipEmptySourceFilesTaskExecuter.java:41)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter&&
.execute(SkipTaskWithNoActionsExecuter.java:51)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execut&&
e(SkipOnlyIfTaskExecuter.java:52)&&
&&&&&&&&at&org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter&&
.execute(ExecuteAtMostOnceTaskExecuter.java:42)&&
&&&&&&&&at&org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailur&&
e(AbstractTask.java:247)&&
&&&&&&&&at&org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.executeTask(De&&
faultTaskPlanExecutor.java:52)&&
&&&&&&&&at&org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.processTask(De&&
faultTaskPlanExecutor.java:38)&&
&&&&&&&&at&org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(Defaul&&
tTaskPlanExecutor.java:30)&&
&&&&&&&&at&org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(Defau&&
ltTaskGraphExecuter.java:83)&&
&&&&&&&&at&org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTask&&
ExecutionAction.java:29)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecute&&
r.java:61)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExec&&
uter.java:23)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecu&&
ter.java:67)&&
&&&&&&&&at&org.gradle.api.internal.changedetection.TaskCacheLockHandlingBuildExe&&
cuter$1.run(TaskCacheLockHandlingBuildExecuter.java:31)&&
&&&&&&&&at&org.gradle.internal.Factories$1.create(Factories.java:22)&&
&&&&&&&&at&org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAcc&&
ess.java:124)&&
&&&&&&&&at&org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAcc&&
ess.java:112)&&
&&&&&&&&at&org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(De&&
faultPersistentDirectoryStore.java:130)&&
&&&&&&&&at&org.gradle.api.internal.changedetection.DefaultTaskArtifactStateCache&&
Access.useCache(DefaultTaskArtifactStateCacheAccess.java:79)&&
&&&&&&&&at&org.gradle.api.internal.changedetection.TaskCacheLockHandlingBuildExe&&
cuter.execute(TaskCacheLockHandlingBuildExecuter.java:29)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecute&&
r.java:61)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExec&&
uter.java:23)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecu&&
ter.java:67)&&
&&&&&&&&at&org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildEx&&
ecutionAction.java:32)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecute&&
r.java:61)&&
&&&&&&&&at&org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecute&&
r.java:54)&&
&&&&&&&&at&org.gradle.initialization.DefaultGradleLauncher.doBuildStages(Default&&
GradleLauncher.java:158)&&
&&&&&&&&at&org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradle&&
Launcher.java:113)&&
&&&&&&&&at&org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLaun&&
cher.java:81)&&
&&&&&&&&at&org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.jav&&
&&&&&&&&at&org.gradle.launcher.exec.InProcessGradleLauncherActionExecuter.execut&&
e(InProcessGradleLauncherActionExecuter.java:39)&&
&&&&&&&&at&org.gradle.launcher.exec.InProcessGradleLauncherActionExecuter.execut&&
e(InProcessGradleLauncherActionExecuter.java:25)&&
&&&&&&&&at&org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:50)&&
&&&&&&&&at&org.gradle.api.internal.Actions$RunnableActionAdapter.execute(Actions&&
.java:137)&&
&&&&&&&&at&org.gradle.mandLineActionFactory$ParseAndBuildAction.&&
execute(CommandLineActionFactory.java:201)&&
&&&&&&&&at&org.gradle.mandLineActionFactory$ParseAndBuildAction.&&
execute(CommandLineActionFactory.java:174)&&
&&&&&&&&at&org.gradle.mandLineActionFactory$WithLogging.execute(&&
CommandLineActionFactory.java:170)&&
&&&&&&&&at&org.gradle.mandLineActionFactory$WithLogging.execute(&&
CommandLineActionFactory.java:139)&&
&&&&&&&&at&org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionRep&&
ortingAction.java:33)&&
&&&&&&&&at&org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionRep&&
ortingAction.java:22)&&
&&&&&&&&at&org.gradle.launcher.Main.doAction(Main.java:48)&&
&&&&&&&&at&org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)&&
&&&&&&&&at&org.gradle.launcher.Main.main(Main.java:39)&&
&&&&&&&&at&org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBoots&&
trap.java:50)&&
&&&&&&&&at&org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.j&&
&&&&&&&&at&org.gradle.launcher.GradleMain.main(GradleMain.java:26)&&
&&&&&&&&at&org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.ja&&
&&&&&&&&at&org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:130)&&
&&&&&&&&at&org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48)&&
Caused&by:&java.lang.OutOfMemoryError:&GC&overhead&limit&exceeded&&
&&&&&&&&at&org.apache.fop.area.inline.TextArea.addWord(TextArea.java:68)&&
&&&&&&&&at&org.apache.fop.layoutmgr.inline.TextLayoutManager.createTextArea(Text&&
LayoutManager.java:483)&&
&&&&&&&&at&org.apache.fop.layoutmgr.inline.TextLayoutManager.addAreas(TextLayout&&
Manager.java:361)&&
&&&&&&&&at&org.apache.fop.layoutmgr.inline.LineLayoutManager.addInlineArea(LineL&&
ayoutManager.java:1716)&&
&&&&&&&&at&org.apache.fop.layoutmgr.inline.LineLayoutManager.addAreas(LineLayout&&
Manager.java:1568)&&
&&&&&&&&at&org.apache.fop.layoutmgr.BlockLayoutManager.addAreas(BlockLayoutManag&&
er.java:395)&&
&&&&&&&&at&org.apache.fop.layoutmgr.BlockLayoutManager.addAreas(BlockLayoutManag&&
er.java:395)&&
&&&&&&&&at&org.apache.fop.layoutmgr.BlockLayoutManager.addAreas(BlockLayoutManag&&
er.java:395)&&
&&&&&&&&at&org.apache.fop.layoutmgr.BlockLayoutManager.addAreas(BlockLayoutManag&&
er.java:395)&&
&&&&&&&&at&org.apache.fop.layoutmgr.AreaAdditionUtil.addAreas(AreaAdditionUtil.j&&
ava:121)&&
&&&&&&&&at&org.apache.fop.layoutmgr.FlowLayoutManager.addAreas(FlowLayoutManager&&
.java:305)&&
&&&&&&&&at&org.apache.fop.layoutmgr.PageBreaker.addAreas(PageBreaker.java:241)&&
&&&&&&&&at&org.apache.fop.layoutmgr.AbstractBreaker.addAreas(AbstractBreaker.jav&&
&&&&&&&&at&org.apache.fop.layoutmgr.AbstractBreaker.addAreas(AbstractBreaker.jav&&
&&&&&&&&at&org.apache.fop.layoutmgr.PageBreaker.doPhase3(PageBreaker.java:262)&&
&&&&&&&&at&org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.jav&&
&&&&&&&&at&org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.jav&&
&&&&&&&&at&org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(Pag&&
eSequenceLayoutManager.java:106)&&
&&&&&&&&at&org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.j&&
ava:234)&&
&&&&&&&&at&org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java&&
&&&&&&&&at&org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilde&&
r.java:340)&&
&&&&&&&&at&org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:169)&&
&&&&&&&&at&org.apache.xalan.transformer.TransformerIdentityImpl.endElement(Trans&&
formerIdentityImpl.java:1050)&&
&&&&&&&&at&org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown&Source&&
&&&&&&&&at&org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknow&&
n&Source)&&
&&&&&&&&at&org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContent&&
Dispatcher.dispatch(Unknown&Source)&&
&&&&&&&&at&org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Un&&
known&Source)&&
&&&&&&&&at&org.apache.xerces.parsers.XML11Configuration.parse(Unknown&Source)&&
&&&&&&&&at&org.apache.xerces.parsers.XML11Configuration.parse(Unknown&Source)&&
&&&&&&&&at&org.apache.xerces.parsers.XMLParser.parse(Unknown&Source)&&
&&&&&&&&at&org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown&Source)&&
&&&&&&&&at&org.apache.xalan.transformer.TransformerIdentityImpl.transform(Transf&&
ormerIdentityImpl.java:432)&&
BUILD&FAILED&&
那就把gradlew.bat的内存设置调大一点，我做实验时，机器的内存是8G、64位系统，直接使用
set GRADLE_OPTS=-XX:MaxPermSize=2048m -Xmx2048m -XX:MaxHeapSize=1024m %GRADLE_OPTS%
（我下载的是spring-framework-3.2.1.RELEASE版本，jdk1.7）
问题3：gradle命令的使用
在spring源码的根目录下，提供gradlew.bat和
import-into-eclipse.bat这两个命令，都可以build源码，但如果使用前者就不会生成eclipse的环境需要的一些文件，如下图所示：
另外，在使用import-into-eclipse.bat这个命令build时，可能会遇到一个问题，错误日志如下：
Java代码&&
FAILURE:&Build&failed&with&an&exception.&&
*&What&went&wrong:&&
Execution&failed&for&task&':spring-webmvc-tiles3:eclipseClasspath'.&&
&&Could&not&resolve&all&dependencies&for&configuration&'detachedConfiguration2'.&&
&&&&&Module&version&group:org.springframework,&module:spring-webmvc-tiles3,&vers&&
ion:3.2.1.RELEASE,&configuration:detachedConfiguration2&declares&a&dependency&on&&
&configuration&'runtimeMerge'&which&is&not&declared&in&the&module&descriptor&for&&
&group:org.springframework,&module:spring-web,&version:3.2.1.RELEASE&&
Run&with&--stacktrace&option&to&get&the&stack&trace.&Run&with&--info&or&--debug&&
option&to&get&more&log&output.&&
&从日志中可以看出是在build spring-webmvc-tiles3项目时，生成eclipse的.classpath文件时出错，打开其它正常导入的项目的.classpath看下这个文件包含了哪些信息，如打开spring-aop项目的：
Java代码&&
&?xml&version="1.0"&encoding="UTF-8"?&&&
&classpath&&&
&&&&&classpathentry&kind="output"&path="spring-aop/bin/eclipse"/&&&
&&&&&classpathentry&output="bin/main"&kind="src"&path="src/main/java"/&&&
&&&&&classpathentry&output="bin/main"&kind="src"&path="src/main/resources"/&&&
&&&&&classpathentry&output="bin/test"&kind="src"&path="src/test/java"/&&&
&&&&&classpathentry&output="bin/test"&kind="src"&path="src/test/resources"/&&&
&&&&&classpathentry&kind="con"&path="org.eclipse.jdt.launching.JRE_CONTAINER"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-core"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-beans"&exported="true"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/aopalliance/aopalliance/1.0/source/4a4b6d692edaac491d3c814/aopalliance-1.0-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/aopalliance/aopalliance/1.0/jar/235ba8bac13a8f9ea77a1ca5ebe3e8/aopalliance-1.0.jar"&exported="true"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/com.jamonapi/jamon/2.4/jar/e2ad6f45c2ba72d8fa798b68a5f9b73c9f047756/jamon-2.4.jar"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/commons-pool/commons-pool/1.5.3/source/7c4d461bd4fc6daabef/commons-pool-1.5.3-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/commons-pool/commons-pool/1.5.3/jar/7ad440d63c6eea5e79fc/commons-pool-1.5.3.jar"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.aspectj/aspectjweaver/1.7.1/source/5bfa1ea3b5653119dcf22a0de5a802b1/aspectjweaver-1.7.1-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.aspectj/aspectjweaver/1.7.1/jar/cf8f3caaf180a31f83433/aspectjweaver-1.7.1.jar"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/junit/junit/4.11/source/28e0ada4abf999ca0570b7cffc352c3c/junit-4.11-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/junit/junit/4.11/jar/4e031bb61df09069aeb2bffb4a4ee0/junit-4.11.jar"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.hamcrest/hamcrest-all/1.3/source/47e033b7ab18c5dbd5fe29fc1bd5a40afe028818/hamcrest-all-1.3-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.hamcrest/hamcrest-all/1.3/jar/63a21ebcad02ef3a8d5a/hamcrest-all-1.3.jar"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.mockito/mockito-core/1.9.5/source/46f703fbd48a189cb2e/mockito-core-1.9.5-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.mockito/mockito-core/1.9.5/jar/c3264abeea62c4d2f367e21484fbb40c7e256393/mockito-core-1.9.5.jar"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.hamcrest/hamcrest-core/1.3/source/1dc37250fbc78e23a65a67fbbaf71d2e9cbc3c0b/hamcrest-core-1.3-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.hamcrest/hamcrest-core/1.3/jar/42a25dce5dacb49bf010a0/hamcrest-core-1.3.jar"/&&&
&&&&&classpathentry&sourcepath="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.objenesis/objenesis/1.0/source/b10c90e57b7bb985a7b6afe5c2a732c/objenesis-1.0-sources.jar"&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.objenesis/objenesis/1.0/jar/9bc2bdfb1b5bff9805704/objenesis-1.0.jar"/&&&
&&&&&classpathentry&kind="lib"&path="D:/DevelopTools/spring-framework-3.2.1.RELEASE/spring-core/build/libs/spring-cglib-repack-3.0.jar"&exported="true"/&&&
&/classpath&&&
&而spring-webmvc-tiles3下根本就没有.classpath的影子，没得比较，虽然上面的错误日志的E文都认识，但还是看不出它在讲什么，不过大体能看得出是依赖出了问题，那只能是想办法顺藤摸瓜了。重新打开build.gradle，找到有关spring-webmvc-tiles3项目的描述，如下：
Java代码&&
project("spring-webmvc-tiles3")&{&&
&&&&description&=&"Spring&Framework&Tiles3&Integration"&&
&&&&merge.into&=&project(":spring-webmvc")&&
&&&&dependencies&{&&
&&&&&&&&provided(project(":spring-context"))&&
&&&&&&&&provided(project(":spring-web"))&&
&&&&&&&&provided("javax.el:el-api:1.0")&&
&&&&&&&&provided("javax.servlet:jstl:1.2")&&
&&&&&&&&provided("javax.servlet.jsp:jsp-api:2.1")&&
&&&&&&&&optional("org.apache.tiles:tiles-request-api:1.0.1")&&
&&&&&&&&optional("org.apache.tiles:tiles-api:3.0.1")&&
&&&&&&&&optional("org.apache.tiles:tiles-core:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-servlet:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-jsp:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-extras:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-el:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&provided("javax.servlet:javax.servlet-api:3.0.1")&&
&&&&&&&&testCompile("org.slf4j:slf4j-jcl:${slf4jVersion}")&&
&打开C:/Users/so/.gradle/caches/artifacts-15/filestore，挨个依赖进行检查，jar包倒是最下载下来了，但是"org.apache.tiles:tiles-jsp:3.0.1"、"org.apache.tiles:tiles-extras:3.0.1"、"org.apache.tiles:tiles-el:3.0.1"三个却没有下载到source，其它包都有jar、pom、source三个目录，这三个没有source目录，只有jar、pom目录，问题应该是出现在这里。
后来终于让我找到了这么一个东西：http://issues.gradle.org/browse/GRADLE-1157，正好证实我前面的猜想，所以按照issue中的解决办法，在build.gradle中加上如下部分：
Java代码&&
eclipseClasspath&{&&
&&&&&&&&&&&&downloadSources&=&false;&//&required&for&eclipseClasspath&to&work&&
&关于spring-webmvc-tiles3项目的脚本、就变成这样了：
Java代码&&
project("spring-webmvc-tiles3")&{&&
&&&&description&=&"Spring&Framework&Tiles3&Integration"&&
&&&&merge.into&=&project(":spring-webmvc")&&
&&&&dependencies&{&&
&&&&&&&&provided(project(":spring-context"))&&
&&&&&&&&provided(project(":spring-web"))&&
&&&&&&&&provided("javax.el:el-api:1.0")&&
&&&&&&&&provided("javax.servlet:jstl:1.2")&&
&&&&&&&&provided("javax.servlet.jsp:jsp-api:2.1")&&
&&&&&&&&optional("org.apache.tiles:tiles-request-api:1.0.1")&&
&&&&&&&&optional("org.apache.tiles:tiles-api:3.0.1")&&
&&&&&&&&optional("org.apache.tiles:tiles-core:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-servlet:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-jsp:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-extras:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&optional("org.apache.tiles:tiles-el:3.0.1")&{&&
&&&&&&&&&&&&exclude&group:&"org.slf4j",&module:&"jcl-over-slf4j"&&
&&&&&&&&}&&
&&&&&&&&provided("javax.servlet:javax.servlet-api:3.0.1")&&
&&&&&&&&testCompile("org.slf4j:slf4j-jcl:${slf4jVersion}")&&
&&&&eclipseClasspath&{&&
&&&&&&&&&&&&downloadSources&=&false;&//&required&for&eclipseClasspath&to&work&&
&重新运行命令，这一次终于让我看到了BUILD SUCCESSFUL的字样了……
成功build完成后，可以看到spring目录下的spring-webmvc-tiles3项目也正常生成了导入eclipse需要的文件。打开.classpath查看一下：
Java代码&&
&?xml&version="1.0"&encoding="UTF-8"?&&&
&classpath&&&
&&&&&classpathentry&kind="output"&path="spring-webmvc-tiles3/bin/eclipse"/&&&
&&&&&classpathentry&output="bin/main"&kind="src"&path="src/main/java"/&&&
&&&&&classpathentry&output="bin/test"&kind="src"&path="src/test/java"/&&&
&&&&&classpathentry&output="bin/test"&kind="src"&path="src/test/resources"/&&&
&&&&&classpathentry&kind="con"&path="org.eclipse.jdt.launching.JRE_CONTAINER"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-context"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-web"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-webmvc"&exported="true"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-request-api/1.0.1/jar/ac444f7d599a6ae28c360cd10fdf2aafa3b87106/tiles-request-api-1.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-api/3.0.1/jar/3d49cebe1adfb2074332ccb16eb9cfe/tiles-api-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-core/3.0.1/jar/359a3c7fd12d2fc437bf/tiles-core-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-servlet/3.0.1/jar/4ec5bed5f984ac1ed54bec1cbb0e51c1cb4e3dad/tiles-servlet-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-jsp/3.0.1/jar/bd84bcce601b1d1d210f/tiles-jsp-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-extras/3.0.1/jar/2b959bccf9c8b44da0eac/tiles-extras-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-el/3.0.1/jar/e3454acc31fcbcffe69b9b14a9dde46/tiles-el-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/javax.el/el-api/1.0/jar/df8c6cec5d018e5fb988be1bcf1024/el-api-1.0.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/javax.servlet/jstl/1.2/jar/74aca283cd4f4b4f3e425f5820cda58f/jstl-1.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/javax.servlet.jsp/jsp-api/2.1/jar/63fef1f3a4d5e94d145a0f961f5316/jsp-api-2.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/javax.servlet/javax.servlet-api/3.0.1/jar/6bf0ebb7efd993e222fce92a13b38dd/javax.servlet-api-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/junit/junit/4.11/jar/4e031bb61df09069aeb2bffb4a4ee0/junit-4.11.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.hamcrest/hamcrest-all/1.3/jar/63a21ebcad02ef3a8d5a/hamcrest-all-1.3.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.mockito/mockito-core/1.9.5/jar/c3264abeea62c4d2f367e21484fbb40c7e256393/mockito-core-1.9.5.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.easymock/easymock/2.5.2/jar/eade86d387afbdbbef1e/easymock-2.5.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.easymock/easymockclassextension/2.5.2/jar/59ee00208cca7b869b661d78aed67cc5bc0db804/easymockclassextension-2.5.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.slf4j/slf4j-jcl/1.6.1/jar/bec58a97b3512cc99bb/slf4j-jcl-1.6.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/commons-beanutils/commons-beanutils/1.8.0/jar/c651db20dfffceb536/commons-beanutils-1.8.0.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/commons-digester/commons-digester/2.0/jar/3dbd8a7a2c78c356ad8b8acf38bf/commons-digester-2.0.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-request-servlet/1.0.1/jar/b74ca6c9c9eedfcaf1b8e9a8889d0dcf615df33d/tiles-request-servlet-1.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-autotag-core-runtime/1.1.0/jar/1fbce0e8cf8ec06b49e/tiles-autotag-core-runtime-1.1.0.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-template/3.0.1/jar/e9ab8acfa97bc812af573b25b5aebe/tiles-template-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-request-jsp/1.0.1/jar/ad5fa55a93adbff33c08/tiles-request-jsp-1.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/commons-logging/commons-logging/1.1.1/jar/5043bfebc3db072ed80fbd362e7caf00e885d8ae/commons-logging-1.1.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/aopalliance/aopalliance/1.0/jar/235ba8bac13a8f9ea77a1ca5ebe3e8/aopalliance-1.0.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-request-servlet-wildcard/1.0.1/jar/b84cc2adee74bde4b3f/tiles-request-servlet-wildcard-1.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.codehaus.jackson/jackson-core-asl/1.5.2/jar/d31b0bc93ebc95c6aa0cdb1b429d78/jackson-core-asl-1.5.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.codehaus.jackson/jackson-mapper-asl/1.5.2/jar/5da8baa486efcf6a14b50/jackson-mapper-asl-1.5.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/com.google.guava/guava/r09/jar/9c053d300de0fff923/guava-r09.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/com.github.spullara.mustache.java/core/0.6.2/jar/88ee806dd40a1e836d3dc1ac6ba8487ccd0ac693/core-0.6.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/com.github.spullara.mustache.java/builder/0.6.2/jar/79ab81bc94fe570f8d8a3c6fe2966c/builder-0.6.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-request-mustache/1.0.1/jar/4fff86a848e8a10d0e59c2058dad1aba07c21c2e/tiles-request-mustache-1.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.freemarker/freemarker/2.3.15/jar/c8cfe522476fcec8da5c980d58bf62d6ab0cf27c/freemarker-2.3.15.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-request-freemarker/1.0.1/jar/9bc80586fdbb6ddf82/tiles-request-freemarker-1.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-freemarker/3.0.1/jar/a452de79623f48bbdfaa9e46eed2c79/tiles-freemarker-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/oro/oro/2.0.8/jar/645c4ae250f4c9fbb314c/oro-2.0.8.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/commons-lang/commons-lang/2.4/jar/e458fa4af5d879f6fb11/commons-lang-2.4.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/commons-collections/commons-collections/3.2.1/jar/761ea405b9b37ced573d2df0d1e3a4e0f9edc668/commons-collections-3.2.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.velocity/velocity/1.6.2/jar/1b470ec12a9b8aa69bdacb2cbdd6a0/velocity-1.6.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.velocity/velocity-tools/2.0/jar/a8c56aea0/velocity-tools-2.0.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-request-velocity/1.0.1/jar/5bac89158caff29f3ce/tiles-request-velocity-1.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-velocity/3.0.1/jar/3ff74e88c4a6fe4e70e89492acf0c2c235659eac/tiles-velocity-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.mvel/mvel2/2.0.11/jar/14bb21dabd899d2e60d9c0d008f267ed0d6c9ea8/mvel2-2.0.11.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-mvel/3.0.1/jar/582c704beb37b6bef92f5c1afd1814/tiles-mvel-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/jboss/javassist/3.7.ga/jar/6d271a67a1d8718bfb225ace5a25f1c/javassist-3.7.ga.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/ognl/ognl/2.7.3/jar/8c391fdc943bc4f57306ccc6442f7c/ognl-2.7.3.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-ognl/3.0.1/jar/ebba43e5cf3bcde23f0/tiles-ognl-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.apache.tiles/tiles-compat/3.0.1/jar/c740c6ab329bacaaeeadead778edc/tiles-compat-3.0.1.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.hamcrest/hamcrest-core/1.3/jar/42a25dce5dacb49bf010a0/hamcrest-core-1.3.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.objenesis/objenesis/1.2/jar/bfcbc5aac48c0667f2a/objenesis-1.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/cglib/cglib-nodep/2.2/jar/59afed7ab65e7ec556c3cbd203532b/cglib-nodep-2.2.jar"/&&&
&&&&&classpathentry&kind="lib"&path="C:/Users/so/.gradle/caches/artifacts-15/filestore/org.slf4j/slf4j-api/1.6.1/jar/6f3b8a24bf970fc94f43eb42f0e4/slf4j-api-1.6.1.jar"/&&&
&&&&&classpathentry&kind="src"&path="/spring-aop"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-core"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-beans"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-expression"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-instrument"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-oxm"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-context-support"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-jdbc"&exported="true"/&&&
&&&&&classpathentry&kind="src"&path="/spring-tx"&exported="true"/&&&
&/classpath&&&
&果然没有sourcepath的信息。
折腾了那么久，终于到了可以看一下成果的时候了。
Spring Tool Suite说简单一点就是Spring家的eclipse，去官网下一个最新版，安装上。
打开STS，菜单File-&import选择General下面的Exsiting projects into workspace，勾选要导入的子项目，确定即可。
成果如上，齐齐整整，没有错误，挺好！
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