diff --git a/backend/src/main/java/io/dataease/controller/sys/SystemParameterController.java b/backend/src/main/java/io/dataease/controller/sys/SystemParameterController.java
index 589f1fd453..f00673a3ce 100644
--- a/backend/src/main/java/io/dataease/controller/sys/SystemParameterController.java
+++ b/backend/src/main/java/io/dataease/controller/sys/SystemParameterController.java
@@ -70,7 +70,7 @@ public class SystemParameterController {
         int timeout = Integer.parseInt(systemParameter.stream().filter(
                 parameter -> parameter.getParamKey().equals("basic.frontTimeOut")
         ).findFirst().get().getParamValue());
-        if (timeout < 0 || timeout > 300) {
+        if (timeout < 0 || timeout > 300) { //增加了合法性检验
             throw new NumberFormatException("Timeout Range Error!");
         }
         systemParameterService.editBasic(systemParameter);
diff --git a/backend/src/main/java/io/dataease/provider/engine/mysql/MysqlQueryProvider.java b/backend/src/main/java/io/dataease/provider/engine/mysql/MysqlQueryProvider.java
index 0d12494d6c..ef589b72a8 100644
--- a/backend/src/main/java/io/dataease/provider/engine/mysql/MysqlQueryProvider.java
+++ b/backend/src/main/java/io/dataease/provider/engine/mysql/MysqlQueryProvider.java
@@ -62,7 +62,7 @@ public class MysqlQueryProvider extends QueryProvider {
             case "MEDIUMINT":
             case "INTEGER":
             case "BIGINT":
-            case "LONG":
+            case "LONG": //增加了LONG类型
                 return 2;// 整型
             case "FLOAT":
             case "DOUBLE":
diff --git a/backend/src/main/java/io/dataease/provider/query/mysql/MysqlQueryProvider.java b/backend/src/main/java/io/dataease/provider/query/mysql/MysqlQueryProvider.java
index 4d00409706..cf6bd3b53c 100644
--- a/backend/src/main/java/io/dataease/provider/query/mysql/MysqlQueryProvider.java
+++ b/backend/src/main/java/io/dataease/provider/query/mysql/MysqlQueryProvider.java
@@ -63,7 +63,7 @@ public class MysqlQueryProvider extends QueryProvider {
             case "MEDIUMINT":
             case "INTEGER":
             case "BIGINT":
-            case "LONG":
+            case "LONG": //增加了LONG类型
                 return 2;// 整型
             case "FLOAT":
             case "DOUBLE":
diff --git a/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java b/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java
index fdc9280797..91a817b14e 100644
--- a/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java
+++ b/backend/src/main/java/io/dataease/service/dataset/DataSetTableService.java
@@ -1614,7 +1614,7 @@ public class DataSetTableService {
                                 TableUtils.fieldName(field.getTableId() + "_" + field.getDataeaseName()),
                                 tableField.getFieldName())) {
                             tableField.setRemarks(field.getName());
-                            tableField.setFieldType(field.getType());
+                            tableField.setFieldType(field.getType()); //将原有的type赋值给新创建的数据列
                             break;
                         }
                     }
diff --git a/frontend/src/lang/en.js b/frontend/src/lang/en.js
index d6bd11fad5..f22b513270 100644
--- a/frontend/src/lang/en.js
+++ b/frontend/src/lang/en.js
@@ -640,7 +640,7 @@ export default {
     login_type: 'Default login type',
     empty_front: 'If empty then default value is 10s',
     empty_msg: 'If empty then default value is 30 days',
-    front_error: 'Valid ranger [0 - 300]',
+    front_error: 'Valid ranger [0 - 300]', //修改了提示信息
     msg_error: 'Valid ranger [1 - 365]',
     SMTP_port: 'SMTP Port',
     SMTP_account: 'SMTP Account',
diff --git a/frontend/src/lang/tw.js b/frontend/src/lang/tw.js
index f84284fc55..eeb69f7b51 100644
--- a/frontend/src/lang/tw.js
+++ b/frontend/src/lang/tw.js
@@ -642,7 +642,7 @@ export default {
     login_type: '默認登錄方式',
     empty_front: '為空則默認取值10秒',
     empty_msg: '為空則默認取值30天',
-    front_error: '請填寫0-300正整數',
+    front_error: '請填寫0-300正整數', //修改了提示信息
     msg_error: '請填寫1-365正整數',
     SMTP_port: 'SMTP端口',
     SMTP_account: 'SMTP賬戶',
diff --git a/frontend/src/lang/zh.js b/frontend/src/lang/zh.js
index 214dd8e45d..3a6527bc69 100644
--- a/frontend/src/lang/zh.js
+++ b/frontend/src/lang/zh.js
@@ -643,7 +643,7 @@ export default {
     login_type: '默认登录方式',
     empty_front: '为空则默认取10秒',
     empty_msg: '为空则默认取30天',
-    front_error: '请填写0-300正整数',
+    front_error: '请填写0-300正整数', //修改了提示信息
     msg_error: '请填写1-365正整数',
     SMTP_port: 'SMTP端口',
     SMTP_account: 'SMTP账户',
diff --git a/frontend/src/views/system/SysParam/BasicSetting.vue b/frontend/src/views/system/SysParam/BasicSetting.vue
index 0da6667bb4..6e3657abe1 100644
--- a/frontend/src/views/system/SysParam/BasicSetting.vue
+++ b/frontend/src/views/system/SysParam/BasicSetting.vue
@@ -86,7 +86,7 @@ export default {
       rules: {
         frontTimeOut: [
           {
-            pattern: '^([0-9]|\\b[1-9]\\d\\b|\\b[1-2]\\d\\d\\b|\\b300\\b)$',
+            pattern: '^([0-9]|\\b[1-9]\\d\\b|\\b[1-2]\\d\\d\\b|\\b300\\b)$', //修改了正则表达式，让其正确匹配0-300的数值
             message: this.$t('system_parameter_setting.front_error'),
             trigger: 'blur'
           }