背景说明

Dolphinscheduler 是企业级分布式工作流调度平台，适配 MySQL 作为元数据存储时， 必须确保各模块都正确引入 MySQL JDBC 驱动。 否则打包或部署上线后，极易出现“找不到 mysql-connector-java” 或 “No suitable driver found” 等数据库连接类报错。 MySQL依赖适配

适配思路

在多模块工程下，需针对实际涉及数据库访问的每个子模块，手动补全 mysql-connector-java 依赖，否则任何一环缺失都可能导致整体不可用。

提示

• 需关注 dolphinscheduler-worker、dolphinscheduler-master、dolphinscheduler-api、dolphinscheduler-alert-server 等模块
• 每个模块的 pom.xml 单独补齐 MySQL 驱动依赖，不能只在父工程声明

实操步骤

1. 补丁文件准备

请先将如下补丁文件，放入对应 patch 目录，确保自动应用。

2. 关键 diff 内容

+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.24</version>
+            <scope>compile</scope>
+        </dependency>

修改位置汇总

模块目录	文件路径
dolphinscheduler-worker	dolphinscheduler-worker/pom.xml
dolphinscheduler-master	dolphinscheduler-master/pom.xml
dolphinscheduler-api	dolphinscheduler-api/pom.xml
dolphinscheduler-alert-server	dolphinscheduler-alert/dolphinscheduler-alert-server/pom.xml

笔记

建议在所有涉及数据库的模块补齐驱动，避免遗漏引发编译或运行异常。每次升级 MySQL 版本也同步调整驱动版本号，保持兼容。

完整 diff 文件参考

Subject: [PATCH] optimized: 增加mysql 驱动
---
Index: dolphinscheduler-worker/pom.xml
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/dolphinscheduler-worker/pom.xml b/dolphinscheduler-worker/pom.xml
--- a/dolphinscheduler-worker/pom.xml	(revision 2ec95b5c2c50d2882d40e07fb13cf38b5f0469b4)
+++ b/dolphinscheduler-worker/pom.xml	(date 1728530771659)
@@ -118,6 +118,13 @@
             <artifactId>zt-zip</artifactId>
         </dependency>

+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.24</version>
+            <scope>compile</scope>
+        </dependency>
+
     </dependencies>

     <build>
Index: dolphinscheduler-alert/dolphinscheduler-alert-server/pom.xml
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/dolphinscheduler-alert/dolphinscheduler-alert-server/pom.xml b/dolphinscheduler-alert/dolphinscheduler-alert-server/pom.xml
--- a/dolphinscheduler-alert/dolphinscheduler-alert-server/pom.xml	(revision 2ec95b5c2c50d2882d40e07fb13cf38b5f0469b4)
+++ b/dolphinscheduler-alert/dolphinscheduler-alert-server/pom.xml	(date 1728530601997)
@@ -71,6 +71,13 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.24</version>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>

     <build>
Index: dolphinscheduler-api/pom.xml
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/dolphinscheduler-api/pom.xml b/dolphinscheduler-api/pom.xml
--- a/dolphinscheduler-api/pom.xml	(revision 2ec95b5c2c50d2882d40e07fb13cf38b5f0469b4)
+++ b/dolphinscheduler-api/pom.xml	(date 1728530716579)
@@ -236,6 +236,12 @@
             <groupId>org.apache.dolphinscheduler</groupId>
             <artifactId>dolphinscheduler-extract-alert</artifactId>
         </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.24</version>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>
     <build>
         <testResources>
Index: dolphinscheduler-master/pom.xml
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/dolphinscheduler-master/pom.xml b/dolphinscheduler-master/pom.xml
--- a/dolphinscheduler-master/pom.xml	(revision 2ec95b5c2c50d2882d40e07fb13cf38b5f0469b4)
+++ b/dolphinscheduler-master/pom.xml	(date 1728530744894)
@@ -289,6 +289,13 @@
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-kubernetes-client-config</artifactId>
         </dependency>
+
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.24</version>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>

     <build>