diff --git a/.gitignore b/.gitignore
index 4c078d24..924960c7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+/.git
 /.idea
 /vendor
 /config/config.php
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76e883b4..4130dd6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,8 @@
-### [v1.5.0](https://gitee.com/koogua/course-tencent-cloud/releases/v1.5.0)(2022-01-13)
+### [v1.5.0](https://gitee.com/koogua/course-tencent-cloud/releases/v1.5.0)(2022-02-17)
 
 - 调整对内部人员通知任务类型的前缀
 - 调整微信和短信通知发送判断逻辑
+- 清理后台实用工具的无用文件内容
 - 支付后解除秒杀商品锁定
 - 加强支付流程数据验证
 - 加强退款流程数据验证
diff --git a/app/Http/Admin/Views/util/index_cache.volt b/app/Http/Admin/Views/util/index_cache.volt
index 75278348..078e8073 100644
--- a/app/Http/Admin/Views/util/index_cache.volt
+++ b/app/Http/Admin/Views/util/index_cache.volt
@@ -50,40 +50,4 @@
         </div>
     </form>
 
-{% endblock %}
-
-{% block inline_js %}
-
-    <script>
-
-        layui.use(['jquery', 'form', 'layer'], function () {
-
-            var $ = layui.jquery;
-            var form = layui.form;
-            var layer = layui.layer;
-
-            form.on('submit(back_verify)', function (data) {
-                $.ajax({
-                    type: 'POST',
-                    url: data.form.action,
-                    data: data.field,
-                    success: function (res) {
-                        if (res.code === 0) {
-                            $('#back-verify-btn').remove();
-                            $('#back-verify-tips').removeClass('layui-hide');
-                        }
-                        layer.msg(res.msg, {icon: 1});
-                    },
-                    error: function (xhr) {
-                        var json = JSON.parse(xhr.responseText);
-                        layer.msg(json.msg, {icon: 2});
-                    }
-                });
-                return false;
-            });
-
-        });
-
-    </script>
-
 {% endblock %}
\ No newline at end of file
diff --git a/app/Providers/Annotation.php b/app/Providers/Annotation.php
index 292416db..f4d4ec68 100644
--- a/app/Providers/Annotation.php
+++ b/app/Providers/Annotation.php
@@ -33,6 +33,7 @@ class Annotation extends Provider
                     'host' => $config->path('redis.host'),
                     'port' => $config->path('redis.port'),
                     'auth' => $config->path('redis.auth'),
+                    'index' => $config->path('redis.index') ?: 0,
                     'lifetime' => $config->path('annotation.lifetime') ?: 30 * 86400,
                     'prefix' => $statsKey . ':',
                     'statsKey' => $statsKey,
diff --git a/app/Providers/Cache.php b/app/Providers/Cache.php
index eb8de514..283dfcd7 100644
--- a/app/Providers/Cache.php
+++ b/app/Providers/Cache.php
@@ -33,6 +33,7 @@ class Cache extends Provider
                 'host' => $config->path('redis.host'),
                 'port' => $config->path('redis.port'),
                 'auth' => $config->path('redis.auth'),
+                'index' => $config->path('redis.index') ?: 0,
             ]);
         });
     }
diff --git a/app/Providers/MetaData.php b/app/Providers/MetaData.php
index 6c7a2c9b..7c6b4426 100644
--- a/app/Providers/MetaData.php
+++ b/app/Providers/MetaData.php
@@ -33,6 +33,7 @@ class MetaData extends Provider
                     'host' => $config->path('redis.host'),
                     'port' => $config->path('redis.port'),
                     'auth' => $config->path('redis.auth'),
+                    'index' => $config->path('redis.index') ?: 0,
                     'lifetime' => $config->path('metadata.lifetime') ?: 30 * 86400,
                     'prefix' => $statsKey . ':',
                     'statsKey' => $statsKey,
diff --git a/app/Providers/Session.php b/app/Providers/Session.php
index 7aaf654a..17226821 100644
--- a/app/Providers/Session.php
+++ b/app/Providers/Session.php
@@ -28,6 +28,7 @@ class Session extends Provider
                 'host' => $config->path('redis.host'),
                 'port' => $config->path('redis.port'),
                 'auth' => $config->path('redis.auth'),
+                'index' => $config->path('redis.index') ?: 0,
                 'lifetime' => $config->path('session.lifetime') ?: 24 * 3600,
                 'prefix' => '_SESSION_:',
             ]);
diff --git a/config/config.default.php b/config/config.default.php
index 2a1e5a53..924f027d 100644
--- a/config/config.default.php
+++ b/config/config.default.php
@@ -82,6 +82,11 @@ $config['redis']['host'] = 'redis';
  */
 $config['redis']['port'] = 6379;
 
+/**
+ * redis库编号
+ */
+$config['redis']['index'] = 0;
+
 /**
  * redis密码
  */