完成下载，但是回调的触发有些问题

byhieg · byhieg · commit 4aa73fc5ba62 · 2017-03-15T16:19:52.000+08:00
diff --git a/src/main/java/cn/byhieg/designpatterntutorial/singleton/DCLSingleton.java b/src/main/java/cn/byhieg/designpatterntutorial/singleton/DCLSingleton.java
@@ -23,4 +23,6 @@ public  static DCLSingleton getSingleton(){
         return singleton;
     }
 
+
+
 }
diff --git a/src/main/java/cn/byhieg/designpatterntutorial/singleton/EnumSingleton.java b/src/main/java/cn/byhieg/designpatterntutorial/singleton/EnumSingleton.java
@@ -0,0 +1,14 @@
+package cn.byhieg.designpatterntutorial.singleton;
+
+/**
+ * Created by shiqifeng on 2017/3/14.
+ * Mail byhieg@gmail.com
+ */
+public enum EnumSingleton {
+    SINGLETON;
+
+
+    public void doSometings(){
+
+    }
+}
diff --git a/src/main/java/cn/byhieg/designpatterntutorial/singleton/HungrySingleton.java b/src/main/java/cn/byhieg/designpatterntutorial/singleton/HungrySingleton.java
@@ -0,0 +1,17 @@
+package cn.byhieg.designpatterntutorial.singleton;
+
+/**
+ * Created by shiqifeng on 2017/3/14.
+ * Mail byhieg@gmail.com
+ */
+public class HungrySingleton {
+    private static final HungrySingleton singleton = new HungrySingleton();
+
+    private HungrySingleton(){
+
+    }
+
+//    public static HungrySingleton getSingleton(){
+//        return singleton;
+//    }
+}
diff --git a/src/main/java/cn/byhieg/designpatterntutorial/singleton/SimpleSingleton.java b/src/main/java/cn/byhieg/designpatterntutorial/singleton/SimpleSingleton.java
@@ -1,11 +1,13 @@
 package cn.byhieg.designpatterntutorial.singleton;
 
+import java.io.Serializable;
+
 /**
  * 该类线程不安全，是延迟加载的懒汉模式
  * Created by shiqifeng on 2017/3/14.
  * Mail byhieg@gmail.com
  */
-public class SimpleSingleton {
+public class SimpleSingleton implements Serializable {
 
     private static SimpleSingleton simpleSingleton;
 
@@ -19,4 +21,6 @@ public static SimpleSingleton getInstance(){
         }
         return simpleSingleton;
     }
+
+
 }
diff --git a/src/main/java/cn/byhieg/designpatterntutorial/singleton/StaticSingleton.java b/src/main/java/cn/byhieg/designpatterntutorial/singleton/StaticSingleton.java
@@ -0,0 +1,20 @@
+package cn.byhieg.designpatterntutorial.singleton;
+
+/**
+ * Created by shiqifeng on 2017/3/14.
+ * Mail byhieg@gmail.com
+ */
+public class StaticSingleton {
+
+    private StaticSingleton(){
+    }
+
+
+    public static final StaticSingleton getInstance(){
+        return Holder.singleton;
+    }
+
+    private static class Holder{
+        private static final StaticSingleton singleton = new StaticSingleton();
+    }
+}

Original file line number	Diff line number	Diff line change
`@@ -23,4 +23,6 @@ public static DCLSingleton getSingleton(){`
`23`	`23`	`return singleton;`
`24`	`24`	`}`
`25`	`25`
	`26`	`+`
	`27`	`+`
`26`	`28`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1,11 +1,13 @@`
`1`	`1`	`package cn.byhieg.designpatterntutorial.singleton;`
`2`	`2`
	`3`	`+import java.io.Serializable;`
	`4`	`+`
`3`	`5`	`/**`
`4`	`6`	`* 该类线程不安全，是延迟加载的懒汉模式`
`5`	`7`	`* Created by shiqifeng on 2017/3/14.`
`6`	`8`	`* Mail byhieg@gmail.com`
`7`	`9`	`*/`
`8`		`-public class SimpleSingleton {`
	`10`	`+public class SimpleSingleton implements Serializable {`
`9`	`11`
`10`	`12`	`private static SimpleSingleton simpleSingleton;`
`11`	`13`
`@@ -19,4 +21,6 @@ public static SimpleSingleton getInstance(){`
`19`	`21`	`}`
`20`	`22`	`return simpleSingleton;`
`21`	`23`	`}`
	`24`	`+`
	`25`	`+`
`22`	`26`	`}`