修复日志打印的问题

book-server/src/main/java/com/book/server/Application.java

@@ -1,13 +1,23 @@
 package com.book.server;
 
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cache.annotation.EnableCaching;
 
 @SpringBootApplication
 @EnableCaching
-public class Application {
+@Slf4j
+public class Application implements CommandLineRunner {
     public static void main(String[] args) {
+        //日志异步
+        System.setProperty("Log4jContextSelector", "org.apache.logging.log4j.core.async.AsyncLoggerContextSelector");
         SpringApplication.run(Application.class);
     }
+
+    @Override
+    public void run(String... args) throws Exception {
+        log.info("启动成功");
+    }
 }