feat: update monitor, terminal, and SFTP interaction flow

.opencode/plans/2026-03-30-sftp-tab-cache-fix-plan.md

@@ -0,0 +1,63 @@
+# SFTP标签页状态保持修复实施计划
+
+> **For agentic workers:** REQUIRED: Use superpowers:subagent-driven-development (if subagents available) or superpowers:executing-plans to implement this plan. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** 修复SFTP标签页离开后再返回会刷新页面、丢失浏览状态的问题
+
+**Architecture:** 为SftpView组件添加keep-alive缓存，仅缓存SFTP相关页面，最大缓存10个实例避免内存占用过高，每个路由实例通过fullPath作为唯一key区分
+
+**Tech Stack:** Vue 3、Vue Router 4、Pinia
+
+---
+
+### Task 1: 为SftpView组件添加名称标识
+**Files:**
+- Modify: `frontend/src/views/SftpView.vue`
+
+- [ ] **Step 1: 添加组件名称**
+在script setup开头添加：
+```typescript
+defineOptions({ name: 'SftpView' })
+```
+
+---
+
+### Task 2: 修改MainLayout添加keep-alive缓存
+**Files:**
+- Modify: `frontend/src/layouts/MainLayout.vue:193-195`
+
+- [ ] **Step 1: 替换原RouterView代码**
+原代码：
+```vue
+<RouterView v-slot="{ Component }">
+  <component :is="Component" v-if="!showTerminalWorkspace" />
+</RouterView>
+```
+替换为：
+```vue
+<RouterView v-slot="{ Component }">
+  <keep-alive :include="['SftpView']" :max="10">
+    <component :is="Component" v-if="!showTerminalWorkspace" :key="$route.fullPath" />
+  </keep-alive>
+</RouterView>
+```
+
+---
+
+### Task 3: 验证修复效果
+**Files:**
+- Test: 手动验证 + 构建验证
+
+- [ ] **Step 1: 运行类型检查**
+Run: `cd frontend && npm run build`
+Expected: 构建成功，无类型错误
+
+- [ ] **Step 2: 手动测试功能**
+1. 启动开发服务，登录系统
+2. 打开任意连接的SFTP标签
+3. 浏览到任意子目录
+4. 切换到其他页面（如连接列表、终端）
+5. 切回SFTP标签，确认仍停留在之前浏览的子目录，状态未丢失
+6. 打开多个不同连接的SFTP标签，切换时确认各自状态独立保存
+
+---

backend/src/main/java/com/sshmanager/controller/MonitorController.java

@@ -0,0 +1,180 @@
+package com.sshmanager.controller;
+
+import com.sshmanager.entity.Connection;
+import com.sshmanager.entity.User;
+import com.sshmanager.repository.UserRepository;
+import com.sshmanager.service.ConnectionService;
+import com.sshmanager.service.SshService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.Authentication;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/monitor")
+public class MonitorController {
+
+    private final ConnectionService connectionService;
+    private final SshService sshService;
+    private final UserRepository userRepository;
+
+    public MonitorController(ConnectionService connectionService, SshService sshService, UserRepository userRepository) {
+        this.connectionService = connectionService;
+        this.sshService = sshService;
+        this.userRepository = userRepository;
+    }
+
+    private Long getCurrentUserId(Authentication auth) {
+        User user = userRepository.findByUsername(auth.getName()).orElseThrow(() -> new IllegalStateException("User not found"));
+        return user.getId();
+    }
+
+    @GetMapping("/{connectionId}")
+    public ResponseEntity<Map<String, Object>> getServerMetrics(@PathVariable Long connectionId, Authentication authentication) {
+        try {
+            Long userId = getCurrentUserId(authentication);
+            Connection conn = connectionService.getConnectionForSsh(connectionId, userId);
+            if (conn == null) {
+                return ResponseEntity.notFound().build();
+            }
+
+            String password = connectionService.getDecryptedPassword(conn);
+            String privateKey = connectionService.getDecryptedPrivateKey(conn);
+            String passphrase = connectionService.getDecryptedPassphrase(conn);
+
+            Map<String, Object> metrics = new HashMap<>();
+
+            // 获取CPU使用率（兼容多种系统）
+            try {
+                double cpuUsage = 0;
+                try {
+                    // 优先使用top
+                    String cpuOutput = sshService.executeCommand(conn, password, privateKey, passphrase, 
+                        "top -bn1 2>/dev/null | grep 'Cpu(s)' | sed 's/.*, *\\([0-9.]*\\)%* id.*/\\1/' | awk '{print 100 - $1}'");
+                    if (!cpuOutput.trim().isEmpty()) {
+                        cpuUsage = Double.parseDouble(cpuOutput.trim());
+                    } else {
+                        throw new Exception("top command failed");
+                    }
+                } catch (Exception e) {
+                    // 备用方案：使用/proc/stat计算（需要两次采样，这里简化处理用vmstat）
+                    try {
+                        String vmstatOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                            "vmstat 1 2 | tail -1 | awk '{print 100 - $15}'");
+                        cpuUsage = Double.parseDouble(vmstatOutput.trim());
+                    } catch (Exception e2) {
+                        throw new Exception("Both top and vmstat failed");
+                    }
+                }
+                metrics.put("cpuUsage", Math.round(cpuUsage * 10.0) / 10.0);
+            } catch (Exception e) {
+                metrics.put("cpuUsage", null);
+            }
+
+            // 获取内存信息（兼容多种系统）
+            try {
+                long totalMem = 0;
+                long usedMem = 0;
+                try {
+                    // 优先使用free -b
+                    String memOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                        "free -b 2>/dev/null | grep Mem");
+                    if (!memOutput.trim().isEmpty()) {
+                        String[] memParts = memOutput.trim().split("\\s+");
+                        if (memParts.length >= 3) {
+                            totalMem = Long.parseLong(memParts[1]);
+                            usedMem = Long.parseLong(memParts[2]);
+                        }
+                    }
+                } catch (Exception e) {
+                    // 备用方案：从/proc/meminfo读取
+                    String meminfoOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                        "cat /proc/meminfo | grep -E 'MemTotal|MemAvailable'");
+                    String[] lines = meminfoOutput.trim().split("\n");
+                    if (lines.length >= 2) {
+                        totalMem = Long.parseLong(lines[0].replaceAll("\\D+", "")) * 1024;
+                        long availableMem = Long.parseLong(lines[1].replaceAll("\\D+", "")) * 1024;
+                        usedMem = totalMem - availableMem;
+                    }
+                }
+                
+                if (totalMem > 0 && usedMem >= 0) {
+                    double memUsage = (double) usedMem / totalMem * 100;
+                    metrics.put("memTotal", totalMem);
+                    metrics.put("memUsed", usedMem);
+                    metrics.put("memUsage", Math.round(memUsage * 10.0) / 10.0);
+                } else {
+                    throw new Exception("Failed to parse memory info");
+                }
+            } catch (Exception e) {
+                metrics.put("memTotal", null);
+                metrics.put("memUsed", null);
+                metrics.put("memUsage", null);
+            }
+
+            // 获取磁盘使用率
+            try {
+                String diskOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                    "df -P / | tail -1");
+                String[] diskParts = diskOutput.trim().split("\\s+");
+                int diskUsage = Integer.parseInt(diskParts[4].replace("%", ""));
+                metrics.put("diskUsage", diskUsage);
+            } catch (Exception e) {
+                metrics.put("diskUsage", null);
+            }
+
+            // 获取系统负载
+            try {
+                String loadOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                    "cat /proc/loadavg");
+                String[] loadParts = loadOutput.trim().split("\\s+");
+                double load1 = Double.parseDouble(loadParts[0]);
+                metrics.put("load1", load1);
+            } catch (Exception e) {
+                metrics.put("load1", null);
+            }
+
+            // 获取CPU核数
+            try {
+                String cpuCountOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                    "grep -c ^processor /proc/cpuinfo");
+                int cpuCores = Integer.parseInt(cpuCountOutput.trim());
+                metrics.put("cpuCores", cpuCores);
+            } catch (Exception e) {
+                metrics.put("cpuCores", null);
+            }
+
+            // 获取系统运行时间
+            try {
+                String uptimeOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                    "uptime -p");
+                metrics.put("uptime", uptimeOutput.trim().replace("up ", ""));
+            } catch (Exception e) {
+                // 尝试另一种uptime格式
+                try {
+                    String uptimeOutput = sshService.executeCommand(conn, password, privateKey, passphrase,
+                        "cat /proc/uptime | awk '{print $1}'");
+                    double uptimeSeconds = Double.parseDouble(uptimeOutput.trim());
+                    long days = (long) (uptimeSeconds / 86400);
+                    long hours = (long) ((uptimeSeconds % 86400) / 3600);
+                    long minutes = (long) ((uptimeSeconds % 3600) / 60);
+                    StringBuilder uptimeStr = new StringBuilder();
+                    if (days > 0) uptimeStr.append(days).append("d ");
+                    if (hours > 0) uptimeStr.append(hours).append("h ");
+                    uptimeStr.append(minutes).append("m");
+                    metrics.put("uptime", uptimeStr.toString().trim());
+                } catch (Exception e2) {
+                    metrics.put("uptime", null);
+                }
+            }
+
+            return ResponseEntity.ok(metrics);
+        } catch (Exception e) {
+            Map<String, Object> error = new HashMap<>();
+            error.put("error", e.getMessage());
+            return ResponseEntity.badRequest().body(error);
+        }
+    }
+}

backend/src/main/java/com/sshmanager/service/SshService.java

@@ -1,11 +1,14 @@
 package com.sshmanager.service;
 
+import com.jcraft.jsch.ChannelExec;
 import com.jcraft.jsch.ChannelShell;
 import com.jcraft.jsch.JSch;
 import com.jcraft.jsch.Session;
 import com.sshmanager.entity.Connection;
 import org.springframework.stereotype.Service;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -68,6 +71,48 @@ public class SshService {
         return new SshSession(session, channel, channelOut, pipeToChannel);
     }
 
+    // 执行单次命令并返回输出
+    public String executeCommand(Connection conn, String password, String privateKey, String passphrase, String command) throws Exception {
+        JSch jsch = new JSch();
+
+        if (conn.getAuthType() == Connection.AuthType.PRIVATE_KEY && privateKey != null && !privateKey.isEmpty()) {
+            byte[] keyBytes = privateKey.getBytes(StandardCharsets.UTF_8);
+            byte[] passphraseBytes = (passphrase != null && !passphrase.isEmpty())
+                ? passphrase.getBytes(StandardCharsets.UTF_8) : null;
+            jsch.addIdentity("key", keyBytes, null, passphraseBytes);
+        }
+
+        Session session = jsch.getSession(conn.getUsername(), conn.getHost(), conn.getPort());
+        session.setConfig("StrictHostKeyChecking", "no");
+        session.setConfig("kex", "diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1");
+        session.setConfig("PreferredAuthentications", conn.getAuthType() == Connection.AuthType.PASSWORD ? "password" : "publickey");
+
+        if (conn.getAuthType() == Connection.AuthType.PASSWORD) {
+            session.setPassword(password);
+        }
+
+        session.connect(8000);
+
+        ChannelExec channel = (ChannelExec) session.openChannel("exec");
+        channel.setCommand(command);
+        channel.setErrStream(System.err);
+
+        InputStream in = channel.getInputStream();
+        channel.connect(3000);
+
+        BufferedReader reader = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));
+        StringBuilder result = new StringBuilder();
+        String line;
+        while ((line = reader.readLine()) != null) {
+            result.append(line).append("\n");
+        }
+
+        channel.disconnect();
+        session.disconnect();
+
+        return result.toString().trim();
+    }
+
     public static class SshSession {
         private final Session session;
         private final ChannelShell channel;

frontend/src/components/TerminalWidget.vue

@@ -3,6 +3,8 @@ import { nextTick, ref, onMounted, onUnmounted, watch } from 'vue'
 import { Terminal } from 'xterm'
 import { FitAddon } from '@xterm/addon-fit'
 import { useAuthStore } from '../stores/auth'
+import client from '../api/client'
+import { Activity, Cpu, HardDrive, MemoryStick, Clock, ChevronUp, ChevronDown } from 'lucide-vue-next'
 import 'xterm/css/xterm.css'
 
 const CONTROL_PREFIX = '__SSHMANAGER__:'
@@ -15,6 +17,19 @@ const props = defineProps<{
 const containerRef = ref<HTMLElement | null>(null)
 const status = ref<'connecting' | 'connected' | 'error'>('connecting')
 const errorMessage = ref('')
+const showMonitor = ref(true)
+const monitorLoading = ref(false)
+const monitorData = ref<{
+  cpuUsage?: number
+  memTotal?: number
+  memUsed?: number
+  memUsage?: number
+  diskUsage?: number
+  load1?: number
+  cpuCores?: number
+  uptime?: string
+}>({})
+let monitorPollTimer: number | null = null
 
 let term: Terminal | null = null
 let fitAddon: FitAddon | null = null
@@ -41,6 +56,46 @@ function refreshTerminalLayout() {
   })
 }
 
+function formatBytes(bytes: number): string {
+  if (bytes < 1024) return bytes + ' B'
+  if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB'
+  if (bytes < 1024 * 1024 * 1024) return (bytes / (1024 * 1024)).toFixed(1) + ' MB'
+  return (bytes / (1024 * 1024 * 1024)).toFixed(1) + ' GB'
+}
+
+function getUsageColor(usage: number | undefined, threshold: number = 70, critical: number = 90): string {
+  if (usage === undefined) return 'text-slate-400'
+  if (usage >= critical) return 'text-red-400'
+  if (usage >= threshold) return 'text-amber-400'
+  return 'text-green-400'
+}
+
+async function fetchMonitorData() {
+  if (!props.active || status.value !== 'connected') return
+  monitorLoading.value = true
+  try {
+    const res = await client.get(`/monitor/${props.connectionId}`)
+    monitorData.value = res.data
+  } catch {
+    // 静默失败，不影响终端使用
+  } finally {
+    monitorLoading.value = false
+  }
+}
+
+function startMonitorPoll() {
+  stopMonitorPoll()
+  fetchMonitorData()
+  monitorPollTimer = window.setInterval(fetchMonitorData, 5000)
+}
+
+function stopMonitorPoll() {
+  if (monitorPollTimer) {
+    clearInterval(monitorPollTimer)
+    monitorPollTimer = null
+  }
+}
+
 function getWsUrl(): string {
   const authStore = useAuthStore()
   const token = authStore.token
@@ -53,6 +108,8 @@ function getWsUrl(): string {
 }
 
 function cleanup() {
+  stopMonitorPoll()
+  
   if (resizeObserver && containerRef.value) {
     resizeObserver.unobserve(containerRef.value)
   }
@@ -158,6 +215,9 @@ onMounted(() => {
     status.value = 'connected'
     refreshTerminalLayout()
     scheduleResize(term!.cols, term!.rows)
+    if (props.active !== false) {
+      startMonitorPoll()
+    }
   }
 
   onDataDisposable = term.onData((data) => {
@@ -198,6 +258,11 @@ onMounted(() => {
 watch(() => props.active, (active) => {
   if (active) {
     refreshTerminalLayout()
+    if (status.value === 'connected') {
+      startMonitorPoll()
+    }
+  } else {
+    stopMonitorPoll()
   }
 })
 
@@ -208,6 +273,70 @@ onUnmounted(() => {
 
 <template>
   <div class="h-full flex flex-col bg-slate-950 rounded-lg border border-slate-700 overflow-hidden">
+    <!-- 监控状态栏 -->
+    <div v-if="status === 'connected'" class="border-b border-slate-700 bg-slate-900/80">
+      <div class="flex items-center justify-between px-3 py-1.5 text-xs">
+        <div class="flex items-center gap-4">
+          <!-- CPU -->
+          <div class="flex items-center gap-1">
+            <Cpu class="w-3.5 h-3.5 text-slate-400" />
+            <span class="text-slate-400">CPU:</span>
+            <span :class="getUsageColor(monitorData.cpuUsage)">
+              {{ monitorData.cpuUsage !== undefined ? monitorData.cpuUsage + '%' : '--' }}
+            </span>
+          </div>
+          
+          <!-- 内存 -->
+          <div class="flex items-center gap-1">
+            <MemoryStick class="w-3.5 h-3.5 text-slate-400" />
+            <span class="text-slate-400">MEM:</span>
+            <span :class="getUsageColor(monitorData.memUsage)">
+              {{ monitorData.memUsage !== undefined ? monitorData.memUsage + '%' : '--' }}
+            </span>
+            <span v-if="monitorData.memUsed && monitorData.memTotal" class="text-slate-500 ml-1">
+              ({{ formatBytes(monitorData.memUsed) }}/{{ formatBytes(monitorData.memTotal) }})
+            </span>
+          </div>
+          
+          <!-- 磁盘 -->
+          <div class="flex items-center gap-1">
+            <HardDrive class="w-3.5 h-3.5 text-slate-400" />
+            <span class="text-slate-400">DISK:</span>
+            <span :class="getUsageColor(monitorData.diskUsage, 80, 95)">
+              {{ monitorData.diskUsage !== undefined ? monitorData.diskUsage + '%' : '--' }}
+            </span>
+          </div>
+          
+          <!-- 负载 -->
+          <div class="flex items-center gap-1">
+            <Activity class="w-3.5 h-3.5 text-slate-400" />
+            <span class="text-slate-400">LOAD:</span>
+            <span :class="getUsageColor(monitorData.load1, monitorData.cpuCores || 4, (monitorData.cpuCores || 4) * 1.5)">
+              {{ monitorData.load1 !== undefined ? monitorData.load1.toFixed(2) : '--' }}
+            </span>
+          </div>
+          
+          <!-- 运行时间 -->
+          <div class="flex items-center gap-1">
+            <Clock class="w-3.5 h-3.5 text-slate-400" />
+            <span class="text-slate-400">UP:</span>
+            <span class="text-slate-300">
+              {{ monitorData.uptime || '--' }}
+            </span>
+          </div>
+        </div>
+        
+        <!-- 折叠按钮 -->
+        <button 
+          @click="showMonitor = !showMonitor"
+          class="p-1 rounded hover:bg-slate-700 text-slate-400 hover:text-slate-200 transition-colors"
+          :title="showMonitor ? '隐藏监控栏' : '显示监控栏'"
+        >
+          <component :is="showMonitor ? ChevronUp : ChevronDown" class="w-3.5 h-3.5" />
+        </button>
+      </div>
+    </div>
+    
     <div
       ref="containerRef"
       class="flex-1 min-h-0 p-4 xterm-container"

frontend/src/layouts/MainLayout.vue

@@ -190,8 +190,13 @@ function handleSftpTabClose(tabId: string, connectionId: number, event: Event) {
       <div v-if="keepTerminalWorkspaceMounted" v-show="showTerminalWorkspace" class="h-full">
         <TerminalWorkspaceView :visible="showTerminalWorkspace" />
       </div>
-      <RouterView v-slot="{ Component }">
-        <component :is="Component" v-if="!showTerminalWorkspace" />
+      <RouterView v-slot="{ Component, route }">
+        <template v-if="!showTerminalWorkspace">
+          <keep-alive :max="10" v-if="route.meta.keepAlive">
+            <component :is="Component" :key="route.params.id" />
+          </keep-alive>
+          <component :is="Component" :key="route.fullPath" v-else />
+        </template>
       </RouterView>
     </main>
   </div>

frontend/src/router/index.ts

@@ -43,6 +43,7 @@ const routes: RouteRecordRaw[] = [
         path: 'sftp/:id',
         name: 'Sftp',
         component: () => import('../views/SftpView.vue'),
+        meta: { keepAlive: true },
       },
     ],
   },

frontend/src/stores/sftpTabs.ts

@@ -12,6 +12,7 @@ export interface SftpTab {
 export const useSftpTabsStore = defineStore('sftpTabs', () => {
   const tabs = ref<SftpTab[]>([])
   const activeTabId = ref<string | null>(null)
+  const connectionLoadState = ref<Map<number, number>>(new Map())
 
   const activeTab = computed(() => tabs.value.find(t => t.id === activeTabId.value) || null)
 
@@ -60,7 +61,14 @@ export const useSftpTabsStore = defineStore('sftpTabs', () => {
     const index = tabs.value.findIndex(t => t.id === tabId)
     if (index === -1) return
 
+    const tab = tabs.value[index]
+    if (!tab) return
+
     const wasActive = activeTabId.value === tabId
+
+    // Clean up connection state
+    connectionLoadState.value.delete(tab.connectionId)
+
     tabs.value.splice(index, 1)
 
     if (wasActive && tabs.value.length > 0) {
@@ -73,6 +81,18 @@ export const useSftpTabsStore = defineStore('sftpTabs', () => {
     syncActiveState()
   }
 
+  function setConnectionLoaded(connectionId: number) {
+    connectionLoadState.value.set(connectionId, connectionId)
+  }
+
+  function getLastLoadedConnectionId(connectionId: number): number | null {
+    return connectionLoadState.value.get(connectionId) ?? null
+  }
+
+  function clearConnectionState(connectionId: number) {
+    connectionLoadState.value.delete(connectionId)
+  }
+
   return {
     tabs,
     activeTabId,
@@ -80,5 +100,8 @@ export const useSftpTabsStore = defineStore('sftpTabs', () => {
     openOrFocus,
     activate,
     close,
+    setConnectionLoaded,
+    getLastLoadedConnectionId,
+    clearConnectionState,
   }
 })

frontend/src/views/ConnectionsView.vue

@@ -28,10 +28,11 @@ const sftpTabsStore = useSftpTabsStore()
 const showForm = ref(false)
 const editingConn = ref<Connection | null>(null)
 const searchQuery = ref('')
+let searchDebounceTimer = 0
 
 const keyword = computed(() => route.query.q as string || '')
 const filteredConnections = computed(() => {
-  const q = keyword.value.trim().toLowerCase()
+  const q = searchQuery.value.trim().toLowerCase()
 
   if (!q) {
     return store.connections
@@ -59,7 +60,10 @@ onMounted(() => {
 })
 
 watch(searchQuery, (val) => {
-  updateSearchParam(val)
+  clearTimeout(searchDebounceTimer)
+  searchDebounceTimer = window.setTimeout(() => {
+    updateSearchParam(val)
+  }, 300)
 })
 
 function openCreate() {
@@ -107,7 +111,7 @@ function clearSearch() {
 }
 
 function highlightMatch(text: string): string {
-  const q = keyword.value.trim()
+  const q = searchQuery.value.trim()
   if (!q) return text
 
   const escaped = q.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')

frontend/src/views/SftpView.vue

@@ -1,4 +1,5 @@
 <script setup lang="ts">
+defineOptions({ name: 'SftpView' })
 import { ref, computed, watch, onBeforeUnmount } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { useToast } from 'vue-toast-notification'
@@ -211,7 +212,7 @@ function resetVolatileSftpState() {
 
 watch(
   () => route.params.id,
-  async (routeId, _, onCleanup) => {
+  async (routeId, _oldRouteId, onCleanup) => {
     const requestId = ++routeInitRequestId
     let cleanedUp = false
     onCleanup(() => {
@@ -219,11 +220,18 @@ watch(
     })
 
     const isRouteInitCancelled = () => cleanedUp
-    resetVolatileSftpState()
 
     const rawId = Array.isArray(routeId) ? routeId[0] : routeId
     const parsedId = Number(rawId)
 
+    // 只在切换到不同连接时重置状态
+    // 使用 store 中的状态跟踪，确保在组件重建后仍能正确判断
+    const lastLoaded = sftpTabsStore.getLastLoadedConnectionId(parsedId)
+    const isConnectionChanged = lastLoaded !== parsedId
+    if (isConnectionChanged) {
+      resetVolatileSftpState()
+    }
+
     if (!rawId || !Number.isInteger(parsedId) || parsedId <= 0) {
       if (isStaleRouteInit(requestId, isRouteInitCancelled)) return
       conn.value = undefined
@@ -254,7 +262,12 @@ watch(
     if (isStaleRouteInit(requestId, isRouteInitCancelled)) return
     conn.value = targetConnection
     sftpTabsStore.openOrFocus(targetConnection)
-    await initPath(parsedId, requestId, isRouteInitCancelled)
+
+    // 只在切换到不同连接时初始化路径
+    if (isConnectionChanged) {
+      sftpTabsStore.setConnectionLoaded(parsedId)
+      await initPath(parsedId, requestId, isRouteInitCancelled)
+    }
   },
   { immediate: true }
 )