IDEA导入spring5源码
版本工具：spring5.0.x，gradle4,6，jdk1.8，IntelliJ IDEA 2017-2
1，下载gradle,可以去官网下载，gradle4.6版本。*（gradle4.6-bin.zip，解压即可）
gradle下载地址：https://services.gradle.org/distributions/
2，配置gradle，解压再本地磁盘后配置环境变量即可
新建GRADLE_HOME，path中增加%GRADLE_HOME%/bin;即可
配置完成以后win+r，输入cmd进入dos界面，键入命令gradle -v，若如下图正确输出版本信息即可
3，进入github官网(https://github.com)，搜索 spring-framework
或者访问链接 https://github.com/spring-projects/spring-framework/tree/5.0.x
4，源码导入idea进行构建
1）源码导入idea，file-open选到对应项目（源码解压到workspace）
2）配置gradle
3）刷新gradle
4）出现No such property:values for calss 错误，点击open file，将该行注释即可
5）然后漫长的等待，自动从gradle仓库下载依赖的jar包。
6）源码缺失spring-cglib-repack-3.2.6.jar和spring-objenesis-repack-2.6.jar
如果依赖报错：如下执行命令，即可下载相应jar包
如果报错如下：（这是kotlin版本的问题，在idea 工具中File->Settings->Plugins->Kotlin,点击Update就可以了。）
Error:Kotlin: [Internal Error] java.lang.AbstractMethodError: org.jetbrains.kotlin.scripting.compiler.plugin.ScriptingCompilerConfigurationComponentRegistrar.registerProjectComponents(Lcom/intellij/mock/MockProject;Lorg/jetbrains/kotlin/config/CompilerConfiguration;)V
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.(KotlinCoreEnvironment.kt:172)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.(KotlinCoreEnvironment.kt:114)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironmentCompanion.createForProduction(KotlinCoreEnvironment.kt:382)atorg.jetbrains.kotlin.cli.jvm.K2JVMCompiler.createCoreEnvironment(K2JVMCompiler.kt:281)atorg.jetbrains.kotlin.cli.jvm.K2JVMCompiler.createEnvironmentWithScriptingSupport(K2JVMCompiler.kt:271)atorg.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:163)atorg.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:58)atorg.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:93)atorg.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:46)atorg.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:92)atorg.jetbrains.kotlin.daemon.CompileServiceImplcompileKaTeX parse error: Can't use function '$' in math mode at position 8: inlined$̲ifAlive$lambda$…inlinedifAlivelambda1.invoke(CompileServiceImpl.kt:98)atorg.jetbrains.kotlin.daemon.CompileServiceImpldoCompileKaTeX parse error: Can't use function '$' in math mode at position 8: inlined$̲ifAlive$lambda$…inlinedifAlivelambda$2.invoke(CompileServiceImpl.kt:98)
at org.jetbrains.kotlin.daemon.common.DummyProfiler.withMeasure(PerfUtils.kt:137)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.checkedCompile(CompileServiceImpl.kt:859)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.doCompile(CompileServiceImpl.kt:831)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:379)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport1.run(Transport.java:197)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.Transport.serviceCall(Transport.java:196)atsun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransportConnectionHandler.lambdarun256(TCPTransport.java:683)atjava.security.AccessController.doPrivileged(NativeMethod)atsun.rmi.transport.tcp.TCPTransportConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
5、在spring工程目录下，新建moudle，选择gradle 并勾选java，引入对应的依赖
