线程间通讯完毕

zhu · zhu · commit e55d8b488274 · 2018-05-16T01:11:37.000+08:00
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/joinLong/MyThread.java b/src/main/java/com/chen/api/util/thread/study/chapter3/joinLong/MyThread.java
@@ -0,0 +1,25 @@
+package com.chen.api.util.thread.study.chapter3.joinLong;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-15 23:53
+ */
+public class MyThread extends Thread {
+
+
+    @Override
+    public void run() {
+
+        try {
+            System.out.println("begin time:" + System.currentTimeMillis());
+            Thread.sleep(5000);
+
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+
+    }
+
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/joinLong/Test.java b/src/main/java/com/chen/api/util/thread/study/chapter3/joinLong/Test.java
@@ -0,0 +1,26 @@
+package com.chen.api.util.thread.study.chapter3.joinLong;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-15 23:59
+ */
+public class Test {
+
+    public static void main(String[] args) {
+
+        try {
+            MyThread myThread = new MyThread();
+            myThread.start();
+            myThread.join(2000);
+//            Thread.sleep(2000);
+            System.out.println("end   time:" + System.currentTimeMillis());
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+
+    }
+
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocal11/Run.java b/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocal11/Run.java
@@ -0,0 +1,23 @@
+package com.chen.api.util.thread.study.chapter3.threadLocal11;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-16 00:35
+ */
+public class Run {
+
+
+    public static final ThreadLocal threadLocal = new ThreadLocal();
+
+    public static void main(String[] args) {
+
+        if (threadLocal.get() == null) {
+            System.out.println("从未放过值。。");
+            threadLocal.set("我的值");
+        }
+        System.out.println(threadLocal.get());
+        System.out.println(threadLocal.get());
+
+    }
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalExt/Run.java b/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalExt/Run.java
@@ -0,0 +1,24 @@
+package com.chen.api.util.thread.study.chapter3.threadLocalExt;
+
+/**
+ * 解决初始值为null的问题。
+ *
+ * @author :  chen weijie
+ * @Date: 2018-05-16 01:06
+ */
+public class Run {
+
+    public static ThreadLocalExt threadLocalExt = new ThreadLocalExt();
+
+    public static void main(String[] args) {
+
+        if (threadLocalExt.get() == null) {
+            threadLocalExt.set("我的值");
+        }
+        System.out.println(threadLocalExt.get());
+        System.out.println(threadLocalExt.get());
+
+    }
+
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalExt/ThreadLocalExt.java b/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalExt/ThreadLocalExt.java
@@ -0,0 +1,18 @@
+package com.chen.api.util.thread.study.chapter3.threadLocalExt;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-16 01:04
+ */
+public class ThreadLocalExt extends ThreadLocal {
+
+
+
+    @Override
+    public Object initialValue(){
+
+        return "我是init value";
+
+    }
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/Run.java b/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/Run.java
@@ -0,0 +1,26 @@
+package com.chen.api.util.thread.study.chapter3.threadLocalTest;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-16 00:50
+ */
+public class Run {
+
+    public static void main(String[] args) {
+
+        ThreadA threadA = new ThreadA();
+        ThreadB threadB = new ThreadB();
+        threadA.start();
+        threadB.start();
+
+        for (int i = 0; i < 200; i++) {
+
+            Tools.t1.set("main thread :" + (i + 1));
+            System.out.println("main thread get:" + Tools.t1.get());
+
+        }
+
+
+    }
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/ThreadA.java b/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/ThreadA.java
@@ -0,0 +1,27 @@
+package com.chen.api.util.thread.study.chapter3.threadLocalTest;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-16 00:47
+ */
+public class ThreadA extends Thread {
+
+
+
+    @Override
+    public void run(){
+        try {
+            for (int i = 0; i < 100; i++) {
+                Tools.t1.set("ThradA :" + (i + 1));
+                System.out.println("ThreadA get value:" + Tools.t1.get());
+                Thread.sleep(200);
+            }
+
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+
+    }
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/ThreadB.java b/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/ThreadB.java
@@ -0,0 +1,27 @@
+package com.chen.api.util.thread.study.chapter3.threadLocalTest;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-16 00:47
+ */
+public class ThreadB extends Thread {
+
+
+
+    @Override
+    public void run(){
+        try {
+            for (int i = 0; i < 100; i++) {
+                Tools.t1.set("ThradB :" + (i + 1));
+                System.out.println("ThradB get value:" + Tools.t1.get());
+                Thread.sleep(200);
+            }
+
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+
+    }
+
+}
diff --git a/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/Tools.java b/src/main/java/com/chen/api/util/thread/study/chapter3/threadLocalTest/Tools.java
@@ -0,0 +1,11 @@
+package com.chen.api.util.thread.study.chapter3.threadLocalTest;
+
+/**
+ * @author :  chen weijie
+ * @Date: 2018-05-16 00:45
+ */
+public class Tools {
+
+    public static ThreadLocal t1 =new ThreadLocal();
+
+}
