Idea 如何搭建Spring源码环境

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

dependencies {
 testCompile group: 'junit', name: 'junit', version: '4.12'

 compile(project(":spring-beans"))
 compile(project(":spring-context"))
 compile(project(":spring-core"))
 compile(project(":spring-expression"))
}

package com.johnny.bean;

/**
 * @author johnny
 * @create 2020-09-07 下午11:22
 **/
public class Person {

 private String name;

 private int age;

 @Override
 public String toString() {
 return "Person{" +
  "name='" + name + '\'' +
  ", age=" + age +
  '}';
 }

 public String getName() {
 return name;
 }

 public void setName(String name) {
 this.name = name;
 }

 public int getAge() {
 return age;
 }

 public void setAge(int age) {
 this.age = age;
 }
}

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">


 <bean class="com.johnny.bean.Person" id="person">
 <property name="name" value="johnny"/>
 <property name="age" value="10"/>
 </bean>
</beans>

package com.johnny.bean;

import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * @author johnny
 * @create 2020-09-07 下午11:24
 **/
public class DemoMain {

 public static void main(String[] args) {
 ClassPathXmlApplicationContext classPathXmlApplicationContext = new ClassPathXmlApplicationContext("demo.xml");
 Person person = classPathXmlApplicationContext.getBean(Person.class);
 System.out.println(person);
 }
}