Mac阅读spring 5.0.x版本源码准备（windows差不多一样），附报错解决及准备阶段调试

The following has been tested against IntelliJ IDEA 2016.2.2
## Steps
_Within your locally cloned spring-framework working directory:_
1. Precompile `spring-oxm` with `./gradlew :spring-oxm:compileTestJava`
2. Import into IntelliJ (File -> New -> Project from Existing Sources -> Navigate to directory -> Select build.gradle)
3. When prompted exclude the `spring-aspects` module (or after the import via File-> Project Structure -> Modules)
4. Code away
## Known issues
1. `spring-core` and `spring-oxm` should be pre-compiled due to repackaged dependencies.
See `*RepackJar` tasks in the build and https://youtrack.jetbrains.com/issue/IDEA-160605).
2. `spring-aspects` does not compile due to references to aspect types unknown to
IntelliJ IDEA. See https://youtrack.jetbrains.com/issue/IDEA-64446 for details. In the meantime, the
'spring-aspects' can be excluded from the project to avoid compilation errors.
3. While JUnit tests pass from the command line with Gradle, some may fail when run from
IntelliJ IDEA. Resolving this is a work in progress. If attempting to run all JUnit tests from within
IntelliJ IDEA, you will likely need to set the following VM options to avoid out of memory errors:
    -XX:MaxPermSize=2048m -Xmx2048m -XX:MaxHeapSize=2048m
4. If you invoke "Rebuild Project" in the IDE, you'll have to generate some test
resources of the `spring-oxm` module again (`./gradlew :spring-oxm:compileTestJava`)    
## Tips
In any case, please do not check in your own generated .iml, .ipr, or .iws files.
You'll notice these files are already intentionally in .gitignore. The same policy goes for eclipse metadata.
## FAQ
Q. What about IntelliJ IDEA's own [Gradle support](https://confluence.jetbrains.net/display/IDEADEV/Gradle+integration)?
A. Keep an eye on https://youtrack.jetbrains.com/issue/IDEA-53476

vi /etc/profile 

GRADLE_HOME=/Users/dasouche/Downloads/gradle-4.4.1
export PATH=$GRADLE_HOME/bin:$PATH

source  /etc/profile 

gradle

gradle objenesisRepackJar
gradle cglibRepackJar

repositories {
   mavenCentral()
   maven { url "https://repo.spring.io/libs-spring-framework-build" }
   maven { url "http://maven.aliyun.com/nexus/content/groups/public/"}
}

plugins {
    id 'java'
}
group 'org.springframework'
version '5.0.21.BUILD-SNAPSHOT'
repositories {
    mavenCentral()
}
dependencies {
    compile(project(":spring-context"))
    compile(project(":spring-aop"))
    compile(project(":spring-aspects"))
    testCompile group:'junit', name:'junit', version:'4.12'
    testCompile group:'org.aspectj', name:'aspectjweaver', version:'1.8.14'
//    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.6.0'
//    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'
}
//test {
//    useJUnitPlatform()
//}

public class SpringTest {
  public static void main(String[] args) {
  //构造入参是包地址
    AnnotationConfigApplicationContext annotationConfigApplicationContext = new AnnotationConfigApplicationContext("test");
    UserA bean = annotationConfigApplicationContext.getBean(UserA.class);
    UserB beanB = annotationConfigApplicationContext.getBean(UserB.class);
    System.out.println(beanB.testAdvice());
  }
}

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.stereotype.Component;
@EnableAspectJAutoProxy(exposeProxy = true)
@Component
@Aspect
public class TestAdvice {
  //配置切入点
  @Pointcut("execution(* test.UserB.testAdvice())")
  public void pointcut(){};
  @Before("pointcut()")
  public void before(){
    System.out.println("前置通知");
  }
  @After("pointcut()")
  public void after(){
    System.out.println("后置通知");
  }
  @AfterReturning(value = "pointcut()",returning = "obj")
  public void afterReturning(Object obj){
    System.out.println("正在执行返回通知...");
    System.out.println("目标方法的返回值是："+obj);
  }
  @AfterThrowing(value = "pointcut()", throwing = "e")
  public void afterThrowing(JoinPoint joinPoint, Exception e){
    System.out.println("异常信息："+e.getMessage());
  }
  @Around("pointcut()")
  public Object around(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
    //前增强
    System.out.println("环绕正在执行前增强...");
    //调用目标方法
    Object object=proceedingJoinPoint.proceed();
    //后增强
    System.out.println("环绕正在执行后增强...");
    return object;
  }
}

import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
@Component
public class UserB {
  private String name;
  private UserA userA;
  @PostConstruct
  private void init(){
    System.out.println("init userB");
  }
  public String testAdvice(){
    System.out.println("UserB test Advice");
    return "test";
  }
  public UserA getUserA() {
    return userA;
  }
  public void setUserA(UserA userA) {
    this.userA = userA;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
}

import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
@Component
public class UserA {
  private String name;
  private UserB userB;
  @PostConstruct
  private void init(){
    System.out.println("init userA");
  }
  public UserB getUserB() {
    return userB;
  }
  public void setUserB(UserB userB) {
    this.userB = userB;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
}