concurrency

learn-concurrency/src/test/java/com/github/landyking/learnConcurrency/CyclicBarrierTest.java

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+package com.github.landyking.learnConcurrency;
+
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Created by landy on 2019/2/28.
+ */
+public class CyclicBarrierTest {
+ public static void main(String[] args) throws InterruptedException, BrokenBarrierException {
+ final CyclicBarrier barrier = new CyclicBarrier(4, new Runnable() {
+ @Override
+ public void run() {
+ System.out.println(Thread.currentThread().getName() + " # barrier action");
+ }
+ });
+ for (int i = 0; i < 4; i++) {
+ new Thread(new Runnable() {
+ @Override
+ public void run() {
+ for (int j = 0; j < 2; j++) {
+
+ try {
+ System.out.println(Thread.currentThread().getName() + "-" + j + " ##### start");
+ int await = barrier.await();
+ System.out.println(Thread.currentThread().getName() + "-" + j + " ##### over "+await);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ } catch (BrokenBarrierException e) {
+ e.printStackTrace();
+ }
+ }
+ }
+ }).start();
+ }
+ System.out.println("############");
+ TimeUnit.SECONDS.sleep(100);
+ }
+}

learn-springel/src/test/java/depTest/ClassA.java

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+package depTest;
+
+import org.springframework.beans.factory.InitializingBean;
+
+/**
+ * Created by landy on 2018/12/15.
+ */
+public class ClassA implements InitializingBean{
+ private ClassB b;
+
+ public ClassB getB() {
+ return b;
+ }
+
+ public void setB(ClassB b) {
+ this.b = b;
+ }
+
+ @Override
+ public void afterPropertiesSet() throws Exception {
+ System.out.println("init a...");
+ }
+}

learn-springel/src/test/java/depTest/ClassB.java

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+package depTest;
+
+import org.springframework.beans.factory.InitializingBean;
+
+/**
+ * Created by landy on 2018/12/15.
+ */
+public class ClassB implements InitializingBean{
+ private ClassA a;
+
+ public ClassA getA() {
+ return a;
+ }
+
+ public void setA(ClassA a) {
+ this.a = a;
+ }
+
+ @Override
+ public void afterPropertiesSet() throws Exception {
+ System.out.println("init b");
+ }
+}

learn-springel/src/test/java/depTest/DepTest.java

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+package depTest;
+
+import org.junit.Test;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+/**
+ * Created by landy on 2018/12/15.
+ */
+public class DepTest {
+ @Test
+ public void test() throws Exception {
+ ClassPathXmlApplicationContext app = new ClassPathXmlApplicationContext("test1.xml");
+// Object a = app.getBean("a");
+ Object b = app.getBean("b");
+
+ }
+}

learn-springel/src/test/resources/test1.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http:https://www.springframework.org/schema/beans"
+ xmlns:xsi="http:https://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http:https://www.springframework.org/schema/beans http:https://www.springframework.org/schema/beans/spring-beans.xsd">
+
+ <bean id="a" class="depTest.ClassA" lazy-init="true">
+ <property name="b" ref="b"/>
+ </bean>
+ <bean id="b" class="depTest.ClassB" lazy-init="true">
+ <property name="a" ref="a"/>
+ </bean>
+</beans>