维护readme

README.md

@@ -1,8 +1,291 @@
-## 博客输出demo相关内容记录
+## 技术Demo 和 精彩文章
+
+
+
+👉**技术文章首发在这里**
+
+<p>
+<a href="https://dayarch.top">
+<img src="https://img.shields.io/badge/BLOG-%E6%97%A5%E6%8B%B1%E4%B8%80%E5%85%B5-brightgreen.svg" alt="个人博客">
+</a>
+<a href="#公众号">
+<img src="https://img.shields.io/badge/%E5%85%AC%E4%BC%97%E5%8F%B7-%E6%97%A5%E6%8B%B1%E4%B8%80%E5%85%B5-blue.svg" alt="个人公众号">
+</a>
+</p>
+
+
+🔉**Slogan** 
+
+- 你有一个思想，我有一个思想，我们交换后，一个人就有两个思想
+- If you can NOT explain it simply, you do NOT understand it well enough
+
+---
+
+
+
+![](https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgtaidu (1).png)
+
+
+
+---
+<p>
+<a href="#精选文章">
+<img src="https://img.shields.io/badge/%E5%96%84%E7%94%A8Ctrl+F-%E9%98%85%E8%AF%BB%E7%B2%BE%E9%80%89%E6%96%87%E7%AB%A0-orange.svg" alt="精选文章">
+</a>
+<a href="#技术交流群">
+<img src="https://img.shields.io/badge/Chat-%E5%8A%A0%E7%BE%A4%E4%BA%A4%E6%B5%81-brightgreen.svg" alt="技术交流群">
+</a>
+<a href="https://segmentfault.com/u/tanrigongyibing">
+<img src="https://img.shields.io/badge/Follow-%E6%80%9D%E5%90%A6-green.svg" alt="思否">
+</a>
+<a href="https://juejin.im/user/5d072f9b5188257de35fd756">
+<img src="https://img.shields.io/badge/Follow-%E6%8E%98%E9%87%91-blue.svg" alt="掘金">
+</a>
+<a href="#开车">
+<img src="https://img.shields.io/badge/Happy-%E5%BC%80%E8%BD%A6-yellow.svg" alt="开车">
+</a>
+</p>
+---
+
+
+
+>  越发觉得有必要将过往文章和demo相关内容整合在一起，这样方便查找。这里收录所有我的公众号优质文章，整体以Java技术栈为主，目前内容体量还不大，很多知识点我还在不断总结和完善，会陆续整理到这里....
+
+
+
+💗 希望这些整理可以帮到你💗
+
+
+
+
+
+### 精选文章
+
+
+
+#### Spring / Spring Boot + 周边
+
+- [HttpMessageConverter转换原理解析](https://dayarch.top/p/spring-boot-messageconverter.html)
+- [轻松高效玩转DTO(Data Transfer Object)](轻松高效玩转DTO(Data Transfer Object))
+- [Mybatis拦截器实现数据加密与解密](https://dayarch.top/p/mybatis-interceptor-encrypt-decrypt.html)
+- [Mybatis拦截器执行过程解析](https://mp.weixin.qq.com/s/YVl20QqUHTXMubr68wXR1A)
+- [不得不知的责任链设计模式](https://mp.weixin.qq.com/s/SqIkX01JwR6QXKTa6Kqp4Q)
+- [“犯罪心理”解读 Mybatis 拦截器](https://mp.weixin.qq.com/s/8ohtlnT1Z_O2q8I154Z3-g)
+- [预防XSS，这几招管用！](https://mp.weixin.qq.com/s/iK3SQjxx5dSfE0lIWyYqmA)
+- [面试还不知道BeanFactory和ApplicationContext的区别？](https://dayarch.top/p/difference-between-beanfactory-and-applicationcontext.html)
+- [Spring Bean生命周期之缘起](https://dayarch.top/p/spring-bean-lifecycle-creation.html)
+- [Spring Bean生命周期之缘尽](https://dayarch.top/p/spring-bean-lifecycle-destroy.html)
+- [Spring Aware 到底是什么？](https://dayarch.top/p/spring-aware.html)
+- [Spring Boot @ConfigurationProperties 注解最强使用详解](https://dayarch.top/p/spring-boot-configurationProperties-usage.html)
+- [@Conditional注解，Spring Boot 的灵活配置](https://dayarch.top/p/spring-boot-condition-annotation.html)
+- [Shiro—小而美的安全框架](https://dayarch.top/p/shiro-in-practice.html)
+- [Springboot返回统一JSON数据格式是怎么实现的？](https://dayarch.top/p/spring-boot-global-return.html)
+- [SpringBoot统一异常处理及剖析](https://dayarch.top/p/spring-boot-global-exception.html)
+- [EasyExcel读取Excel实际应用](https://dayarch.top/p/easyexcel-read.html)
+- [Spring Boot 自定义starter 全面教程](https://dayarch.top/p/spring-boot-starter-custom.html)
+- [Lombok 使用教程详解](https://dayarch.top/p/lombok-usage.html)
+- [Spring 数据绑定剖析](https://dayarch.top/p/spring-data-binding-mechanism.html)
+- [在Spring Boot启动时执行代码的几种方法](https://dayarch.top/p/spring-boot-execute-on-startup.html)
+- 陆续整理中......
+
+
+
+
+
+#### 并发编程
+
+- [并发编程之初探](https://dayarch.top/p/java-concurrency-metaphor.html)
+
+- [并发编程三大核心](https://dayarch.top/p/java-concurrency-core.html)
+
+- [并发编程三大问题](https://dayarch.top/p/java-concurrency-three-questions.html)
+
+- [有序性可见性，Happens-before来搞定](https://dayarch.top/p/java-concurrency-happens-before-rule.html)
+
+- [解决原子性问题？你首先需要的是宏观理解](https://dayarch.top/p/java-concurrency-atomic.html)
+
+- [面试volatile关键字时，我们应该具备哪些谈资？](https://dayarch.top/p/java-concurrency-volatile.html)
+
+- [锁保护资源，synchronized方法就够了吗](https://dayarch.top/p/java-concurrency-lock-resource.html)
+
+- [Java并发死锁解决思路](https://dayarch.top/p/java-concurrency-dead-lock.html)
+
+- 正在疯狂更新中......
+
+
+
+
+
+#### 面试常见
+
+- [Java equals 和 hashCode 面试那点事](https://dayarch.top/p/java-equals-hashcode.html)
+- [Maven 依赖传递性透彻理解](https://dayarch.top/p/maven-dependency-optional-transitive.html)
+- [双亲委派模型,大厂高频面试题，轻松搞定](https://dayarch.top/p/java-parents-delegation-model.html)
+- [红黑树，史上最强动静图详解](https://dayarch.top/p/redblack-tree.html)
+- [Java String基础面试](https://dayarch.top/p/java-string-interview.html)
+- [Java12 Collectors.teeing 的使用详解](https://dayarch.top/p/jdk12-collectors-teeing-api-usage.html)
+- [如何设计好的Restful API](https://dayarch.top/p/restful-api-design.html)
+- 陆续整理中......
+
+
+
+
+
+#### 高效工作应用/工具篇
+
+- [SDKMAN 统一灵活管理多版本Java](https://dayarch.top/p/multiple-java-management.html)
+- [IntelliJ IDEA HTTP Client高级使用详解](https://dayarch.top/p/http-client-advanced-usage.html)
+- [小小TODO也有大道理](https://dayarch.top/p/how-to-use-todo-feature.html)
+- [只会用 git pull ？有时候你可以尝试更优雅的处理方式](https://mp.weixin.qq.com/s/6dg3u2PkcTSQHu_3T_QYnA)
+
+
+
+
+
+#### 总结/感悟
+
+##
+
+- [程序猿为什么要看源码](https://mp.weixin.qq.com/s/V7h8O6pVFQ-nr_iA2SNqtw)
+- [2019归零，2020走你](https://dayarch.top/p/2019-summary.html)
+- [读《Clean Code 代码整洁之道》之感悟](https://dayarch.top/p/book-reviews-clean-code.html)
+
+
+
+
+
+#### 数据库相关
+
+- [跨表更新，看到自己写的SQL像个憨憨](https://dayarch.top/p/mysql-cross-table-update.html)
+- [MySQL group_concat 函数详解](https://dayarch.top/p/mysql-group-concat-function-usage.html)
+
+
+
+
+
+#### 其他高质量技术文章
+
+如果你阅读到了某些高质量技术文章，经原作者同意，通过点击下面微信链接加我好友备注「优秀」，提供文章信息, 我会整理在此处，**文章版权归原作者所有**
+
+<p><a href="#技术交流群">
+<img src="https://img.shields.io/badge/Chat-%E5%8A%A0%E6%88%91%E5%BE%AE%E4%BF%A1-blue.svg" alt="技术交流群">
+</a></p>
+
+
+---
+
+
+
+### 公众号
+
+- 🧮技术干货在这里
+- 🔧高效工具汇总
+- 🧱项目实战技巧
+- 📚珍藏资料，助你起飞🛫️ 
+
+
+
+![](https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgqr.png)
+
+
+
+
+
+---
+
+
+
+
+
+### 
+
+### 技术交流群
+
+你看我微信头像就知道我有多单纯🌹，我们的关系马上就要更进一步了💋，加我微信备注「进群」加入技术交流群，这里汇聚全国各地的温柔的武林高手，请回看Slogan1，希望你在这里得到成长的同时也可以帮助别人成长 
+
+
+
+**🈲️:** 营销/广告/推广/私加好友
+
+
+
+加我好友后别着急，我会尽量快速拉大家入群的，因为白天我也是要混饭吃的......
+
+
+
+![](https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgWechatIMG124.jpeg)
+
+
+
+
+
+---
+
+###
+
+### 推广
+
+🎁我在推广云服务器，如果你正好需要，这里的价格绝对让你满意，没事就是要折腾，如果你也想赞助支持，请微信联系我
+
+<p>
+  <a href="https://www.aliyun.com/minisite/goods?userCode=d4nba2y2" title="阿里云" rel="external nofollow noopener noreferrer" target="_blank">
+    <img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgaliyun300x90.jpg" width="269">
+  </a>
+</p>
+<p>
+  <a href="https://url.cn/5B5MNZY" title="阿里云" rel="external nofollow noopener noreferrer" target="_blank">
+    <img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgtengxunyun.jpg" width="269">
+  </a>
+</p>
+
+
+
+📓**点击图标访问其他平台博客（欢迎关注）**
+
+<div>
+	<span>
+		<a href="https://segmentfault.com/u/tanrigongyibing" title="思否" rel="external nofollow" target="_blank"><img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgsf1.png" width="30">
+		</a>
+	</span>
+	<span>
+  	<a href="https://juejin.im/user/5d072f9b5188257de35fd756" title="掘金" rel="external nofollow" target="_blank"><img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgjuejin.png" width="30">
+  	</a>
+  </span>
+  <span>
+  	<a href="https://www.jianshu.com/u/9f9cb4189453" title="简书" rel="external nofollow" target="_blank"><img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgjianshu.png" width="30">
+  	</a>
+  </span>
+  <span>
+  	<a href="https://blog.csdn.net/yusimiao" title="CSDN" rel="external nofollow" target="_blank"><img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgcsdn.svg" width="30">
+  	</a>
+  </span>        
+  <span>
+  	<a href="https://www.zhihu.com/people/claus-yu/activities" title="知乎" rel="external nofollow" target="_blank"><img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgzhihu.png" width="30">
+  	</a>
+  </span>
+  <span>
+  	<a href="https://www.toutiao.com/c/user/103333527519/#mid=1637550143042563" title="头条" rel="external nofollow" target="_blank"><img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgtoutiao.png" width="30">
+  	</a>
+  </span>           
+  <span>
+  	<a href="https://my.oschina.net/u/4149877" title="开源中国" rel="external nofollow" target="_blank"><img src="https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-imgosc.png" width="30">
+  	</a>
+  </span>
+</div>
+---
+
+
+
+### 开车
+
+我们关系刚开始，上来就要开车？客官你太着急了
+
+![](https://cdn.jsdelivr.net/gh/FraserYu/img-host/blog-img20200207170937.png)
+
+
+
+
 
-> 技术文章首发于我的[个人博客](https://dayarch.top)和公众号「日拱一兵」
 
-以读侦探小说思维轻松趣味学习 Java 技术栈相关知识，本着将复杂问题简单化，抽象问题具体化和图形化原则逐步分解技术问题，技术持续更新，请持续关注......
 
 
-![](https://rgyb.sunluomeng.top/%E5%85%AC%E4%BC%97%E8%B4%A6%E5%8F%B7%E6%96%87%E7%AB%A0/%E6%84%9F%E6%83%B3%E4%B8%8E%E6%80%BB%E7%BB%93/_image/2019-07-25/taidu%20%281%29.png)

concurrency/src/main/java/com/example/concurrency/accountbook/Account.java

@@ -1,5 +1,7 @@
 package com.example.concurrency.accountbook;
 
+import java.math.BigDecimal;
+
 /**
  * 账户
  *
@@ -10,26 +12,26 @@ public class Account {
 	//单例的账本管理员
 	private AccountBookManager accountBookManager;
 
+	private int balance;
+
 	public void transfer(Account target, int amt){
 		// 一次性申请转出账户和转入账户，直到成功
-		while(accountBookManager.getAllRequiredAccountBook(this, target)){
-			return;
-		}
-			try{
-				// 锁定转出账户
-				synchronized(this){
-					// 锁定转入账户
-					synchronized(target){
-						if (this.balance > amt){
-							this.balance -= amt;
-							target.balance += amt;
-						}
+		while(accountBookManager.getAllRequiredAccountBook(this, target));
+
+		try{
+			// 锁定转出账户
+			synchronized(this){
+				// 锁定转入账户
+				synchronized(target){
+					if (this.balance > amt){
+						this.balance -= amt;
+						target.balance += amt;
 					}
 				}
-			} finally {
-				accountBookManager.releaseObtainedAccountBook(this, target);
 			}
-
+		} finally {
+			accountBookManager.releaseObtainedAccountBook(this, target);
+		}
 
 	}
 }

concurrency/src/main/java/com/example/concurrency/accountbook/AccountBookManager.java

@@ -1,21 +1,31 @@
 package com.example.concurrency.accountbook;
 
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * 账户管理员
  *
  * @author fraser
  * @date 2019/10/18 11:24 AM
  */
 public class AccountBookManager {
+
+	List<Object> accounts = new ArrayList<>(2);
+
 	synchronized boolean getAllRequiredAccountBook( Object from, Object to){
-		if(拿到所有账本){
-			return true;
-		} else{
+		if(accounts.contains(from) || accounts.contains(to)){
 			return false;
+		} else{
+			accounts.add(from);
+			accounts.add(to);
+
+			return true;
 		}
 	}
 	// 归还资源
 	synchronized void releaseObtainedAccountBook(Object from, Object to){
-		归还获取到的账本
+		accounts.remove(from);
+		accounts.remove(to);
 	}
 }

concurrency/src/main/java/com/example/concurrency/happensbefore/StartExample.java

@@ -26,5 +26,8 @@ public void writer() {
 		System.out.println("x:" + x);
 		System.out.println("y:" + y);
 		System.out.println("flag:" + flag);
+		System.out.println("子线程结束");
+
+		//optimize 将 println 改为 log 形式
 	}
 }