refactor

@@ -55,21 +55,8 @@ public class HttpClient {
     private CloseableHttpClient httpClient;
 
     @PostConstruct
-    public void init() {
-        new Thread(() -> {
-            while (Objects.isNull(httpClient)) {
-                try {
-                    httpClient = this.buildHttpClient();
-                } catch (Exception e) {
-                    log.warn("build http client fail, {}", e.getMessage());
-                }
-                try {
-                    Thread.sleep(3 * 1000);
-                } catch (InterruptedException e) {
-
-                }
-            }
-        }, "http-client-builder-" + this.getClass().getSimpleName()).start();
+    public void init() throws Exception {
+        httpClient = this.buildHttpClient();
     }
 
     public CloseableHttpClient buildHttpClient() throws Exception {