【功能优化】定时任务的 Bean 不存在时，进行报错提示

yudao-module-infra/yudao-module-infra-api/src/main/java/cn/iocoder/yudao/module/infra/enums/ErrorCodeConstants.java

@@ -22,7 +22,7 @@ public interface ErrorCodeConstants {
     ErrorCode JOB_CHANGE_STATUS_EQUALS = new ErrorCode(1_001_001_003, "定时任务已经处于该状态，无需修改");
     ErrorCode JOB_UPDATE_ONLY_NORMAL_STATUS = new ErrorCode(1_001_001_004, "只有开启状态的任务，才可以修改");
     ErrorCode JOB_CRON_EXPRESSION_VALID = new ErrorCode(1_001_001_005, "CRON 表达式不正确");
-    ErrorCode JOB_HANDLER_BEAN_NOT_EXISTS = new ErrorCode(1_001_001_006, "定时任务的处理器 Bean 不存在");
+    ErrorCode JOB_HANDLER_BEAN_NOT_EXISTS = new ErrorCode(1_001_001_006, "定时任务的处理器 Bean 不存在，注意 Bean 默认首字母小写");
     ErrorCode JOB_HANDLER_BEAN_TYPE_ERROR = new ErrorCode(1_001_001_007, "定时任务的处理器 Bean 类型不正确，未实现 JobHandler 接口");
 
     // ========== API 错误日志 1-001-002-000 ==========

yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/job/JobServiceImpl.java

@@ -14,6 +14,7 @@ import cn.iocoder.yudao.module.infra.enums.job.JobStatusEnum;
 import jakarta.annotation.Resource;
 import lombok.extern.slf4j.Slf4j;
 import org.quartz.SchedulerException;
+import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
@@ -91,13 +92,15 @@ public class JobServiceImpl implements JobService {
     }
 
     private void validateJobHandlerExists(String handlerName) {
-        Object handler = SpringUtil.getBean(handlerName);
-        if (handler == null) {
+        try {
+            Object handler = SpringUtil.getBean(handlerName);
+            assert handler != null;
+            if (!(handler instanceof JobHandler)) {
+                throw exception(JOB_HANDLER_BEAN_TYPE_ERROR);
+            }
+        } catch (NoSuchBeanDefinitionException e) {
             throw exception(JOB_HANDLER_BEAN_NOT_EXISTS);
         }
-        if (!(handler instanceof JobHandler)) {
-            throw exception(JOB_HANDLER_BEAN_TYPE_ERROR);
-        }
     }
 
     @Override