添加依赖：

notify-rust = "4.11.7"

添加一个command给前端调用：

use notify_rust::Notification;#[derive(serde::Deserialize)]
pub struct NotificationParams {title: String,body: String,icon: String,
}#[tauri::command]
pub fn notification(app: AppHandle, params: NotificationParams) -> Result<(), String> {let mut notifi_app = Notification::new();#[cfg(target_os = "macos")]{let _ = notify_rust::set_application(if tauri::is_dev() {"com.apple.Terminal"} else {&app.config().identifier});}#[cfg(windows)]{use std::path::MAIN_SEPARATOR as SEP;let curr_dir = get_exe_dir(true);// set the notification's System.AppUserModel.ID only when running the installed appif !(curr_dir.ends_with(format!("{SEP}target{SEP}debug").as_str())|| curr_dir.ends_with(format!("{SEP}target{SEP}release").as_str())){notifi_app.app_id(&app.config().identifier);}}if !params.icon.is_empty() {notifi_app.icon(&params.icon);} else {notifi_app.auto_icon();}tauri::async_runtime::spawn(async move {let _ = notifi_app.summary(&params.title).body(&params.body).show().expect("show notification failed");});Ok(())
}

前端调用：

    invoke('notification', {params: {title: t('notificationTitle'),body: textarea.value,icon: 'face-smile',},})

然后就可以发送通知了：