From 18a237275a89e3e7f2284f2e0eaaa4dc1ba4f1d4 Mon Sep 17 00:00:00 2001
From: anyifei <904783866@qq.com>
Date: Mon, 19 Jan 2026 00:47:25 +0800
Subject: [PATCH 1/2] =?UTF-8?q?feat(classloader):=20=E5=AE=9E=E7=8E=B0?=
 =?UTF-8?q?=E8=87=AA=E5=AE=9A=E4=B9=89=E7=B1=BB=E5=8A=A0=E8=BD=BD=E5=99=A8?=
 =?UTF-8?q?=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 重写loadClass方法实现类加载逻辑
- 添加对特定包名的类加载支持
- 实现findClass方法从文件系统读取类字节码
- 添加字节码解密处理功能
- 集成同步锁确保类加载线程安全
- 配置外部类文件路径加载机制
---
 .../java/club/shengsheng/MyClassLoader.java   | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/src/main/java/club/shengsheng/MyClassLoader.java b/src/main/java/club/shengsheng/MyClassLoader.java
index 21026cf..7c39820 100644
--- a/src/main/java/club/shengsheng/MyClassLoader.java
+++ b/src/main/java/club/shengsheng/MyClassLoader.java
@@ -1,9 +1,52 @@
 package club.shengsheng;
 
 
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
 /**
  * @author gongxuanzhangmelt@gmail.com
  **/
 public class MyClassLoader extends ClassLoader {
 
+
+    @Override
+    protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
+        synchronized (getClassLoadingLock(name)) {
+            Class<?> c = findLoadedClass(name);
+            if (c == null) {
+                if (name.startsWith("tech.insight.ShengSheng")){
+                    c = this.findClass(name);
+                }
+                else {
+                    c = getParent().loadClass(name);
+                }
+            }
+            return c;
+        }
+    }
+
+    @Override
+    protected Class<?> findClass(String name) throws ClassNotFoundException {
+
+
+        File classFile = new File("/Users/anyifei/projects/custom-classloader/加密.class");
+
+        try {
+            byte[] bytes = Files.readAllBytes(classFile.toPath());
+            byte[] newBytes = new byte[bytes.length];
+            for (int i = 0; i < bytes.length; i++) {
+                byte aByte = bytes[i];
+                aByte = (byte) (aByte - 1);
+                newBytes[i] = aByte;
+            }
+            return defineClass(name, newBytes, 0, bytes.length);
+        }catch (Exception e) {
+            throw new ClassNotFoundException(name);
+        }
+    }
 }

From 982df35715ed707008650a90f8cd01485ffcf0af Mon Sep 17 00:00:00 2001
From: anyifei <904783866@qq.com>
Date: Mon, 19 Jan 2026 09:33:27 +0800
Subject: [PATCH 2/2] =?UTF-8?q?fix(classloader):=20=E4=BF=AE=E6=94=B9?=
 =?UTF-8?q?=E5=8A=A0=E5=AF=86=E7=B1=BB=E6=96=87=E4=BB=B6=E8=B7=AF=E5=BE=84?=
 =?UTF-8?q?=E9=85=8D=E7=BD=AE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 将硬编码的绝对路径改为相对路径
- 提高了类加载器的可移植性
- 避免了环境依赖问题
---
 src/main/java/club/shengsheng/MyClassLoader.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/club/shengsheng/MyClassLoader.java b/src/main/java/club/shengsheng/MyClassLoader.java
index 7c39820..da9961a 100644
--- a/src/main/java/club/shengsheng/MyClassLoader.java
+++ b/src/main/java/club/shengsheng/MyClassLoader.java
@@ -34,7 +34,7 @@ protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundE
     protected Class<?> findClass(String name) throws ClassNotFoundException {
 
 
-        File classFile = new File("/Users/anyifei/projects/custom-classloader/加密.class");
+        File classFile = new File("./加密.class");
 
         try {
             byte[] bytes = Files.readAllBytes(classFile.toPath());