增强DashboardView中的图表渲染逻辑，添加数据完整性验证和错误处理，确保组件卸载时正确清理图表实例。

src/views/DashboardView.vue

@@ -81,7 +81,7 @@
 </template>
 
 <script setup>
-import { ref, onMounted, computed, inject, watch } from 'vue'
+import { ref, onMounted, onUnmounted, computed, inject, watch } from 'vue'
 import { useUserStore } from '@/stores/user'
 import { useTeamStore } from '@/stores/team'
 import { getAllTeamStatistics, getIncomeStatistics } from '@/services/api'
@@ -221,16 +221,22 @@ const renderChart = () => {
   // 如果已有图表实例，先销毁
   if (chartInstance.value) {
     chartInstance.value.destroy()
+    chartInstance.value = null
   }
 
   const ctx = chartElement.getContext('2d')
 
-  // 准备数据
-  const labels = incomeStats.value.dates
-  // 直接使用 API 返回的数据（已根据选择的团队过滤）
-  const data = incomeStats.value.total
-  const tipData = incomeStats.value.totalTip
-  const commissionData = incomeStats.value.totalCommission
+  // 准备数据并验证
+  const labels = incomeStats.value.dates || []
+  const data = incomeStats.value.total || []
+  const tipData = incomeStats.value.totalTip || []
+  const commissionData = incomeStats.value.totalCommission || []
+
+  // 验证数据完整性
+  if (!labels.length || !data.length) {
+    console.warn('图表数据不完整，跳过渲染')
+    return
+  }
 
   const datasets = [
     {
@@ -260,28 +266,33 @@ const renderChart = () => {
   ]
 
   // 创建图表
-  chartInstance.value = new Chart(ctx, {
-    type: 'line',
-    data: { labels, datasets },
-    options: {
-      responsive: true,
-      maintainAspectRatio: false,
-      plugins: {
-        legend: {
-          position: 'top'
+  try {
+    chartInstance.value = new Chart(ctx, {
+      type: 'line',
+      data: { labels, datasets },
+      options: {
+        responsive: true,
+        maintainAspectRatio: false,
+        plugins: {
+          legend: {
+            position: 'top'
+          },
+          tooltip: {
+            mode: 'index',
+            intersect: false
+          }
         },
-        tooltip: {
-          mode: 'index',
-          intersect: false
-        }
-      },
-      scales: {
-        y: {
-          beginAtZero: true
+        scales: {
+          y: {
+            beginAtZero: true
+          }
         }
       }
-    }
-  })
+    })
+  } catch (error) {
+    console.error('图表渲染失败:', error)
+    chartInstance.value = null
+  }
 }
 
 // 监听团队选择变化
@@ -297,6 +308,14 @@ onMounted(async () => {
   await loadTeamStats()
   await loadIncomeStats()
 })
+
+// 组件卸载时清理图表实例
+onUnmounted(() => {
+  if (chartInstance.value) {
+    chartInstance.value.destroy()
+    chartInstance.value = null
+  }
+})
 </script>
 
 <style scoped>