!369 代码生成模板缺少事务

Merge pull request !369 from lihy2021/N/A

ruoyi-generator/src/main/resources/vm/java/serviceImpl.java.vm

@@ -129,6 +129,9 @@ public class ${ClassName}ServiceImpl implements I${ClassName}Service
      * @param ${pkColumn.javaField} ${functionName}主键
      * @return 结果
      */
+#if($table.sub)
+    @Transactional
+#end
     @Override
     public int delete${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaType} ${pkColumn.javaField})
     {