diff --git a/backend/Cargo.toml b/backend/Cargo.toml
index 340aed5..acfa5e5 100644
--- a/backend/Cargo.toml
+++ b/backend/Cargo.toml
@@ -24,4 +24,5 @@ env_logger = "0.10.0"
 local-ip-address = "0.5.1"
 actix-cors = "0.6.4"
 tokio = { version = "1.24.1", features = ["macros", "process"]}
-urlencoding = "2.1.3"
\ No newline at end of file
+urlencoding = "2.1.3"
+content_disposition = "0.4.0"
diff --git a/backend/src/external_web.rs b/backend/src/external_web.rs
index ce737cd..69069b0 100644
--- a/backend/src/external_web.rs
+++ b/backend/src/external_web.rs
@@ -2,12 +2,8 @@ use actix_web::{body::BoxBody, web, HttpResponse, Result};
 use local_ip_address::local_ip;
 use rand::{distributions::Alphanumeric, Rng};
 use serde::{Deserialize, Serialize};
-use std::time::Duration;
 use std::{collections::HashMap, fs, path::PathBuf, sync::Mutex};
-use tokio::net::TcpStream;
-use tokio::process::Command;
-use tokio::sync::mpsc;
-use tokio::time::sleep;
+use content_disposition;
 
 use crate::{
     control::{ClashError, ClashErrorKind, EnhancedMode},
@@ -693,7 +689,7 @@ pub async fn download_sub(
             .with_header(
                 "User-Agent",
                 format!(
-                    "ToMoon/{} mihomo/1.18.3 Clash/v1.18.0",
+                    "ToMoon/{} mihomo/1.19.4 clash-verge/2.2.3 Clash/v1.18.0",
                     env!("CARGO_PKG_VERSION")
                 ),
             )
@@ -710,44 +706,49 @@ pub async fn download_sub(
                         ErrorKind: ClashErrorKind::ConfigFormatError,
                     }));
                 }
-                let filename = x.headers.get("content-disposition");
-                let filename = match filename {
-                    Some(x) => {
-                        let filename = x.split("filename=").collect::<Vec<&str>>()[1]
-                            .split(";")
-                            .collect::<Vec<&str>>()[0]
-                            .replace("\"", "");
-                        filename.to_string()
+                let filename = x.headers.get("content-disposition")
+                    .and_then(|header| {
+                        // 尝试从 content-disposition 头部获取文件名
+                        // header.split("filename=").nth(1)
+                        //     .and_then(|s| s.split(';').next())
+                        //     .map(|s| s.trim_matches('"'))
+                        content_disposition::parse_content_disposition(header).filename_full()
+                    })
+                    .filter(|s| !s.is_empty())
+                    .or_else(|| {
+                        // 如果 content-disposition 头部中没有文件名，则尝试从 URL 中获取
+                        log::info!("Failed to get content-disposition, using url instead.");
+                        url.rsplit('/').next()
+                            .and_then(|last_part| last_part.split('?').next()).map(|s| s.to_string())
+                    })
+                    .unwrap_or_else(|| {
+                        // 如果 URL 中没有文件名，则生成一个随机文件名
+                        log::warn!("The downloaded subscription does not have a file name.");
+                        gen_random_name()
+                    });
+                let filename = match filename.to_ascii_lowercase() {
+                    ref lower if lower.ends_with(".yaml") || lower.ends_with(".yml") => filename,
+                    _ => filename + ".yaml",
+                };
+                let mut filepath = path.join(filename.clone());
+                if filepath.exists() {
+                    for i in 1..=128 {
+                        let new_filename = format!("{}_{}.yaml", filename.trim_end_matches(".yaml"), i);
+                        filepath = path.join(new_filename);
+                        if !filepath.exists() {
+                            break;
+                        }
                     }
-                    None => {
-                        let slash_split = *url.split("/").collect::<Vec<&str>>().last().unwrap();
-                        slash_split
-                            .split("?")
-                            .collect::<Vec<&str>>()
-                            .first()
-                            .unwrap()
-                            .to_string()
+                    if filepath.exists() {
+                        log::error!("Failed while saving sub, cannot find a new name.");
+                        return Err(actix_web::Error::from(ClashError {
+                            Message: "The file already exists.".to_string(),
+                            ErrorKind: ClashErrorKind::InnerError,
+                        }));
                     }
-                };
-                let filename = if filename.is_empty() {
-                    log::warn!("The downloaded subscription does not have a file name.");
-                    gen_random_name()
-                } else {
-                    filename
-                };
-                let filename = if filename.to_lowercase().ends_with(".yaml")
-                    || filename.to_lowercase().ends_with(".yml")
-                {
-                    filename
-                } else {
-                    filename + ".yaml"
-                };
-                let mut path = path.join(filename);
-                if fs::metadata(&path).is_ok() {
-                    path = path.parent().unwrap().join(gen_random_name() + ".yaml");
                 }
                 //保存订阅
-                if let Some(parent) = path.parent() {
+                if let Some(parent) = filepath.parent() {
                     if let Err(e) = std::fs::create_dir_all(parent) {
                         log::error!("Failed while creating sub dir.");
                         log::error!("Error Message:{}", e);
@@ -757,7 +758,7 @@ pub async fn download_sub(
                         }));
                     }
                 }
-                let path = path.to_str().unwrap();
+                let path = filepath.to_str().unwrap();
                 log::info!("Writing to path: {}", path);
                 if let Err(e) = fs::write(path, response) {
                     log::error!("Failed while saving sub.");
diff --git a/src/pages/Subscriptions.tsx b/src/pages/Subscriptions.tsx
index debf656..aeb6655 100644
--- a/src/pages/Subscriptions.tsx
+++ b/src/pages/Subscriptions.tsx
@@ -127,6 +127,7 @@ export const Subscriptions: FC<SubProp> = ({ Subscriptions }) => {
         <div id="subscription-qrcode">
           <QRCodeCanvas value={QRPageUrl} size={128} />
         </div>
+        <p style={{ textAlign: "center" }}>{QRPageUrl}</p>
         <div id="subscription-download-textfiled" style={cleanPadding}>
           <TextField
             label={localizationManager.getString(L.SUBSCRIPTIONS_LINK)}
diff --git a/tomoon-web/src/App.jsx b/tomoon-web/src/App.jsx
index 764339b..db5e919 100644
--- a/tomoon-web/src/App.jsx
+++ b/tomoon-web/src/App.jsx
@@ -6,7 +6,7 @@ import axios from 'axios'
 
 function App() {
   const [url, setUrl] = useState("");
-  const [isSubscribed, setIsSubscribed] = useState(true);
+  const [isSubscribed, setIsSubscribed] = useState(false);
 
   const handleUrlChange = (event) => {
     setUrl(event.target.value);
@@ -75,18 +75,25 @@ const on_download_btn_click = (url, isSubscribed) => {
         confirmButtonColor: '#5A6242',
         background: '#DEE7BF'
       });
-    }
-  }).catch(error => {
-    if (error.response) {
+    } else {
       Swal.fire({
         icon: 'error',
         iconColor: '#5E5F55',
-        title: '失败',
-        text: error.response.data?.error?.message,
+        title: '后端失败',
+        html: `错误状态: ${response.status}<br>错误信息: ${response.data?.error?.message}`,
         confirmButtonColor: '#5A6242',
         background: '#DEE7BF'
       });
     }
+  }).catch(error => {
+    Swal.fire({
+      icon: 'error',
+      iconColor: '#5E5F55',
+      title: '请求失败',
+      html: `错误类型: ${error.name}<br>错误信息: ${error?.message}`,
+      confirmButtonColor: '#5A6242',
+      background: '#DEE7BF'
+    });
   });
 
 }