更新后端，采用Springboot+mybatis

src/test/java/Test.java

@@ -0,0 +1,12 @@
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class Test {
+
+    public static void main(String args[]){
+        Date date = new Date();
+        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        String dateString = formatter.format(date);
+        System.out.println(dateString);
+    }
+}

src/test/java/com/jsh/test/MyRunnable.java

@@ -1,9 +0,0 @@
-package com.jsh.test;
-
-public class MyRunnable implements Runnable {//实现Runnable接口
-    public void run(){
-        for(int i=0; i<30; i++){
-            System.out.println(Thread.currentThread().getName()+"运行,  "+i);  //获取当前线程的名称
-        }
-    }
-}

src/test/java/com/jsh/test/MyThread.java

@@ -1,10 +0,0 @@
-package com.jsh.test;
-
-public class MyThread {
-	public static void main(String[] args) {
-		for (int i = 0; i < 3; i++) {
-			MyRunnable  mt = new MyRunnable();    //定义Runnable子类对象
-			new Thread(mt, "第" + i + "个线程").start();
-		}
-	}
-}

src/test/java/com/jsh/test/Test.java

@@ -1,8 +0,0 @@
-package com.jsh.test;
-
-public class Test {
-	public static void main(String[] args) {
-		//This is test	
-		
-	}
-}