From e93974b021d3fbae6348578fc0ea60d24c5d1d05 Mon Sep 17 00:00:00 2001
From: lyf78062919 <78062919@qq.com>
Date: Wed, 9 Jan 2019 10:40:18 +0800
Subject: [PATCH] =?UTF-8?q?=E7=94=B1=E4=BA=8E=E9=83=A8=E5=88=86IDE?=
 =?UTF-8?q?=E8=87=AA=E5=8A=A8=E7=94=9F=E6=88=90class=E6=96=87=E4=BB=B6?=
 =?UTF-8?q?=E8=BE=83=E6=85=A2=EF=BC=8C=E5=AF=BC=E8=87=B4=E5=8A=A0=E8=BD=BD?=
 =?UTF-8?q?=E5=87=BA=E7=8E=B0=E6=89=BE=E4=B8=8D=E5=88=B0=E5=BC=82=E5=B8=B8?=
 =?UTF-8?q?=EF=BC=8C=E7=AE=80=E5=8D=95=E7=9A=84=E9=87=8D=E8=AF=95=E6=9C=BA?=
 =?UTF-8?q?=E5=88=B6=E5=8F=AF=E4=BB=A5=E8=A7=A3=E5=86=B3=E6=AD=A4=E9=97=AE?=
 =?UTF-8?q?=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../undertow/hotswap/HotSwapClassLoader.java  | 26 ++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/jfinal/server/undertow/hotswap/HotSwapClassLoader.java b/src/main/java/com/jfinal/server/undertow/hotswap/HotSwapClassLoader.java
index 2cda73b..3791a10 100644
--- a/src/main/java/com/jfinal/server/undertow/hotswap/HotSwapClassLoader.java
+++ b/src/main/java/com/jfinal/server/undertow/hotswap/HotSwapClassLoader.java
@@ -90,7 +90,7 @@ public class HotSwapClassLoader extends URLClassLoader {
 				 * 使用 "本 ClassLoader" 加载类文件
 				 * 注意：super.loadClass(...) 会触发 parent 加载，绝对不能使用
 				 */
-				c = super.findClass(name);
+				c = findClass(name);
 				if (c != null) {
 					if (resolve) {
 						resolveClass(c);
@@ -106,6 +106,30 @@ public class HotSwapClassLoader extends URLClassLoader {
 			return parent.loadClass(name);
 		}
 	}
+
+    /**
+     * 由于部分IDE自动生成class文件较慢，导致加载出现找不到异常，简单的重试机制可以解决此问题
+     * @param name
+     * @return
+     */
+    protected Class<?> findClass(String name) {
+        int attempts = 10;
+        while (attempts > 0) {
+            try {
+                return super.findClass(name);
+            } catch (ClassNotFoundException e) {
+                try {
+                    Thread.sleep(100);
+                } catch (InterruptedException e1){
+                    ;
+                }finally {
+                    attempts--;
+                }
+            }
+        }
+        return null;
+    }
+
 }
 
 
-- 
Gitee