diff --git a/src/main/java/cn/hezhaohui/threadpool/ThreadPoolApplication.java b/src/main/java/cn/hezhaohui/threadpool/ThreadPoolApplication.java
index 92f6f3f..0058288 100644
--- a/src/main/java/cn/hezhaohui/threadpool/ThreadPoolApplication.java
+++ b/src/main/java/cn/hezhaohui/threadpool/ThreadPoolApplication.java
@@ -1,11 +1,34 @@
 package cn.hezhaohui.threadpool;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import lombok.extern.slf4j.Slf4j;
 
-@SpringBootApplication
+import java.util.Random;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
+@Slf4j
 public class ThreadPoolApplication {
-    public static void main(String[] args) {
-        SpringApplication.run(ThreadPoolApplication.class, args);
+    public static void main(String[] args) throws InterruptedException {
+        ExecutorService executorService = Executors.newFixedThreadPool(2);
+        for (int i = 0; i < 100000000; i++) {
+            executorService.execute(() -> {
+                StringBuilder builder = new StringBuilder();
+                int random = new Random().nextInt(1000);
+                for (int j = 1; j < random; j++) {
+                    builder.append(j);
+                }
+                try {
+                    TimeUnit.HOURS.sleep(1);
+                } catch (InterruptedException e) {
+                    log.error("[Error]");
+                }
+                log.info(builder.toString());
+
+            });
+        }
+
+        executorService.shutdown();
+        executorService.awaitTermination(1, TimeUnit.HOURS);
     }
 }