add 新增 ruoyi-demo 演示模块 用于编写一些测试及演示案例

ruoyi-example/ruoyi-demo/src/main/java/com/ruoyi/demo/RuoYiDemoApplication.java

@@ -0,0 +1,20 @@
+package com.ruoyi.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.metrics.buffering.BufferingApplicationStartup;
+
+/**
+ * 演示模块
+ *
+ * @author Lion Li
+ */
+@SpringBootApplication
+public class RuoYiDemoApplication {
+    public static void main(String[] args) {
+        SpringApplication application = new SpringApplication(RuoYiDemoApplication.class);
+        application.setApplicationStartup(new BufferingApplicationStartup(2048));
+        application.run(args);
+        System.out.println("(♥◠‿◠)ﾉﾞ  演示模块启动成功   ლ(´ڡ`ლ)ﾞ  ");
+    }
+}