From 2db548ee6ed2d4f68c9f75650e0374687d7f2543 Mon Sep 17 00:00:00 2001
From: xiaocp2009 <39615122+xiaocp2009@users.noreply.github.com>
Date: Mon, 3 Nov 2025 14:40:58 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96Mybatis=E7=B3=BB=E7=BB=9F?=
 =?UTF-8?q?=E5=BC=82=E5=B8=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../handler/MybatisExceptionHandler.java      | 50 +++++++++++++++++--
 1 file changed, 46 insertions(+), 4 deletions(-)

diff --git a/cds-platform-2025.V1/cds-common/cds-common-mybatis/src/main/java/org/dromara/common/mybatis/handler/MybatisExceptionHandler.java b/cds-platform-2025.V1/cds-common/cds-common-mybatis/src/main/java/org/dromara/common/mybatis/handler/MybatisExceptionHandler.java
index 9a572b5..094785b 100644
--- a/cds-platform-2025.V1/cds-common/cds-common-mybatis/src/main/java/org/dromara/common/mybatis/handler/MybatisExceptionHandler.java
+++ b/cds-platform-2025.V1/cds-common/cds-common-mybatis/src/main/java/org/dromara/common/mybatis/handler/MybatisExceptionHandler.java
@@ -1,10 +1,11 @@
 package org.dromara.common.mybatis.handler;
 
+import cn.dev33.satoken.exception.NotLoginException;
 import cn.hutool.http.HttpStatus;
+import com.baomidou.dynamic.datasource.exception.CannotFindDataSourceException;
 import jakarta.servlet.http.HttpServletRequest;
 import lombok.extern.slf4j.Slf4j;
 import org.dromara.common.core.domain.R;
-import org.dromara.common.core.utils.StringUtils;
 import org.mybatis.spring.MyBatisSystemException;
 import org.springframework.dao.DuplicateKeyException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
@@ -35,13 +36,54 @@ public class MybatisExceptionHandler {
     @ExceptionHandler(MyBatisSystemException.class)
     public R<Void> handleCannotFindDataSourceException(MyBatisSystemException e, HttpServletRequest request) {
         String requestURI = request.getRequestURI();
-        String message = e.getMessage();
-        if (StringUtils.contains(message, "CannotFindDataSourceException")) {
+        Throwable root = getRootCause(e);
+        if (root instanceof NotLoginException) {
+            log.error("请求地址'{}',认证失败'{}',无法访问系统资源", requestURI, root.getMessage());
+            return R.fail(HttpStatus.HTTP_UNAUTHORIZED, "认证失败，无法访问系统资源");
+        }
+        if (root instanceof CannotFindDataSourceException) {
             log.error("请求地址'{}', 未找到数据源", requestURI);
             return R.fail(HttpStatus.HTTP_INTERNAL_ERROR, "未找到数据源，请联系管理员确认");
         }
         log.error("请求地址'{}', Mybatis系统异常", requestURI, e);
-        return R.fail(HttpStatus.HTTP_INTERNAL_ERROR, message);
+        return R.fail(HttpStatus.HTTP_INTERNAL_ERROR, e.getMessage());
+    }
+
+    /**
+     * 获取异常的根因（递归查找）
+     *
+     * @param e 当前异常
+     * @return 根因异常（最底层的 cause）
+     * <p>
+     * 逻辑说明：
+     * 1. 如果 e 没有 cause，说明 e 本身就是根因，直接返回
+     * 2. 如果 e 的 cause 和自身相同（防止循环引用），也返回 e
+     * 3. 否则递归调用，继续向下寻找最底层的 cause
+     */
+    public static Throwable getRootCause(Throwable e) {
+        Throwable cause = e.getCause();
+        if (cause == null || cause == e) {
+            return e;
+        }
+        return getRootCause(cause);
+    }
+
+    /**
+     * 在异常链中查找指定类型的异常
+     *
+     * @param e     当前异常
+     * @param clazz 目标异常类
+     * @return 找到的指定类型异常，如果没有找到返回 null
+     */
+    public static Throwable findCause(Throwable e, Class<? extends Throwable> clazz) {
+        Throwable t = e;
+        while (t != null && t != t.getCause()) {
+            if (clazz.isInstance(t)) {
+                return t;
+            }
+            t = t.getCause();
+        }
+        return null;
     }
 
 }