From 91115243e45fdd85736244144ed3bc7faf249df9 Mon Sep 17 00:00:00 2001
From: chenchenxinhai <2793915820@qq.com>
Date: Sat, 28 Oct 2023 18:32:26 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=9D=E5=A7=8B=E5=8C=96?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitignore                        | 38 ++++++++++++++++++++++++++++
 .idea/.gitignore                  |  8 ++++++
 .idea/encodings.xml               |  8 ++++++
 .idea/misc.xml                    | 14 +++++++++++
 .idea/vcs.xml                     |  6 +++++
 pom.xml                           | 17 +++++++++++++
 src/main/java/SpringLockDemo.java | 41 +++++++++++++++++++++++++++++++
 7 files changed, 132 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/encodings.xml
 create mode 100644 .idea/misc.xml
 create mode 100644 .idea/vcs.xml
 create mode 100644 pom.xml
 create mode 100644 src/main/java/SpringLockDemo.java

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5ff6309
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,38 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..35410ca
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..63574ec
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" defaultCharsetForPropertiesFiles="UTF-8">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+    <file url="PROJECT" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..e2044d1
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17 (2)" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..fd57f30
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>zuoye1</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
diff --git a/src/main/java/SpringLockDemo.java b/src/main/java/SpringLockDemo.java
new file mode 100644
index 0000000..918228c
--- /dev/null
+++ b/src/main/java/SpringLockDemo.java
@@ -0,0 +1,41 @@
+import java.sql.Time;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
+
+public class SpringLockDemo {
+     AtomicReference<Thread> atomicReference=new AtomicReference<>();
+     public void lock(){
+         Thread thread = Thread.currentThread();
+         System.out.println(Thread.currentThread().getName()+"\t"+"----come in");
+         while (!atomicReference.compareAndSet(null,thread)){
+
+         }
+     }
+     public void unLock(){
+         Thread thread = Thread.currentThread();
+         atomicReference.compareAndSet(thread,null);
+         System.out.println(Thread.currentThread().getName()+"\t"+"----task over,unLock....");
+     }
+    public static void main(String[] args) {
+        SpringLockDemo springLockDemo = new SpringLockDemo();
+        new Thread(() -> {
+            springLockDemo.lock();
+            try{
+                TimeUnit.SECONDS.sleep(5);
+            } catch (InterruptedException e) {
+               e.printStackTrace();
+            }
+            springLockDemo.unLock();
+        },"A").start();
+
+        try{
+            TimeUnit.MILLISECONDS.sleep(500);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        new Thread(() ->{
+         springLockDemo.lock();;
+    },"B").start();
+
+    }
+}