异常消息不打印堆栈信息, 该信息不应该向用户展示

src/main.rs

@@ -269,17 +269,28 @@ impl MainWindow {
         let label = self.label.clone();
         let download_type: DownloadType = self.selection.unwrap();
         let online = self.is_online.clone();
+        if label == ""{
+            add_log("请输入Label".to_string());
+            return;
+        }
         std::thread::spawn(move || {
             let mut download_wrapper = download_wrapper::DownloadWrapper::new();
             let mut mes_service: MesService;
             if online {
                 add_log("当前为在线模式, 正在连接数据库".to_string());
-                mes_service = MesService::new(mes_config.ip.clone(), mes_config.port.clone(), mes_config.username.clone(), mes_config.password.clone(), mes_config.database.clone());
+                match MesService::new(mes_config.ip.clone(), mes_config.port.clone(), mes_config.username.clone(), mes_config.password.clone(), mes_config.database.clone()){
+                    Ok(service) => mes_service = service,
+                    Err(e) =>{
+                        add_log(format!("连接数据库失败: {:?}", e.to_string()));
+                        sender.send(Message::DownloadEnd(false)).unwrap();
+                        return;
+                    }
+                }
                 add_log("连接成功".to_string());
                 add_log("正在过站检测".to_string());
                 let check_result = mes_service.check_station(mes_config.work_order.clone(), label.clone(), download_type);
                 if let Err(res) = check_result {
-                    add_log(format!("过站检测失败: {:?}", res));
+                    add_log(format!("过站检测失败: {:?}", res.to_string()));
                     sender.send(Message::DownloadEnd(false)).unwrap();
                     return;
                 } else if let Ok(res) = check_result {
@@ -343,11 +354,17 @@ impl MainWindow {
             }
 
             return if online {
-                mes_service = MesService::new(mes_config.ip, mes_config.port, mes_config.username, mes_config.password, mes_config.database);
+                match MesService::new(mes_config.ip.clone(), mes_config.port.clone(), mes_config.username.clone(), mes_config.password.clone(), mes_config.database.clone()){
-                add_log("正在上传数据".to_string());
+                    Ok(service) => mes_service = service,
+                    Err(e) =>{
+                        add_log(format!("连接数据库失败: {:?}", e.to_string()));
+                        sender.send(Message::DownloadEnd(false)).unwrap();
+                        return;
+                    }
+                }                add_log("正在上传数据".to_string());
                 let update_result = mes_service.update_station(mes_config.work_order, label, download_type);
                 if let Err(e) = update_result {
-                    add_log(format!("上传失败: {:?}", e));
+                    add_log(format!("上传失败: {:?}", e.to_string()));
                     sender.send(Message::DownloadEnd(false)).unwrap();
                     return;
 

src/mes_service.rs

@@ -7,13 +7,13 @@ pub(crate) struct MesService {
 }
 
 impl MesService {
-    pub fn new(ip: String, port: String, username: String, password: String, database: String) -> Self {
+    pub fn new(ip: String, port: String, username: String, password: String, database: String) -> Result<Self, Error> {
         let url = format!(
             "mysql://{}:{}@{}:{}/{}",
             username, password, ip, port, database
         );
-        let pool = mysql::Pool::new(url.as_str()).unwrap();
+        let pool = mysql::Pool::new(url.as_str())?;
-        Self { pool }
+        Ok(Self { pool })
     }
 
     pub fn get_work_orders(&self) -> Result<Vec<String>, Error> {