feat: 数据统计分析模块前端实现

前端实现：
- dashboard.js: API接口封装（13行）
- dashboard/index.vue: 仪表盘页面（576行）

页面布局：
1. 概览卡片（4个）
   - 项目总数（含本月新增）
   - 客户总数（含本月新增）
   - 合同总数
   - 需求工单数

2. 收支概览（3个）
   - 总收入（含本月收入）
   - 总支出（含本月支出）
   - 净利润（含利润率）

3. 应收款概览（3个）
   - 应收款总额
   - 待收款金额（橙色警示）
   - 逾期金额（红色警示）

4. 图表区域（4个）
   - 收支趋势折线图（最近12个月）
   - 项目状态分布饼图
   - 支出类型分布饼图
   - 应收款状态分布饼图

技术特点：
- ECharts图表库：折线图、环形饼图
- 响应式设计：窗口大小变化自动重绘
- 渐变色卡片：现代化UI设计
- 金额格式化：千分位分隔、保留2位小数
- 图表tooltip：金额/百分比格式化显示
- 组件销毁时清理资源

模块状态：✅ 完整（前端+后端）

fund-admin/src/api/dashboard.js

@@ -0,0 +1,12 @@
+import request from '../utils/request'
+
+/**
+ * 获取仪表盘统计数据
+ */
+export const getDashboardData = (params) => {
+  return request({
+    url: '/proj/api/v1/dashboard',
+    method: 'get',
+    params
+  })
+}

fund-admin/src/views/dashboard/index.vue

@@ -1,77 +1,139 @@
 <template>
-  <div class="dashboard">
-    <el-row :gutter="20">
+  <div class="dashboard-container">
+    <!-- 概览卡片 -->
+    <el-row :gutter="20" class="overview-cards">
       <el-col :span="6">
-        <el-card class="stat-card">
-          <div class="stat-icon" style="background: #409EFF;">
-            <el-icon><User /></el-icon>
+        <el-card shadow="hover" class="stat-card">
+          <div class="stat-icon" style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);">
+            <el-icon size="28"><Folder /></el-icon>
           </div>
           <div class="stat-info">
-            <div class="stat-value">1,234</div>
-            <div class="stat-label">客户总数</div>
-          </div>
-        </el-card>
-      </el-col>
-      <el-col :span="6">
-        <el-card class="stat-card">
-          <div class="stat-icon" style="background: #67C23A;">
-            <el-icon><FolderOpened /></el-icon>
-          </div>
-          <div class="stat-info">
-            <div class="stat-value">56</div>
+            <div class="stat-value">{{ data.projectCount || 0 }}</div>
             <div class="stat-label">项目总数</div>
           </div>
+          <div class="stat-extra">本月新增 +{{ data.monthNewProjects || 0 }}</div>
         </el-card>
       </el-col>
       <el-col :span="6">
-        <el-card class="stat-card">
-          <div class="stat-icon" style="background: #E6A23C;">
-            <el-icon><Document /></el-icon>
+        <el-card shadow="hover" class="stat-card">
+          <div class="stat-icon" style="background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);">
+            <el-icon size="28"><User /></el-icon>
           </div>
           <div class="stat-info">
-            <div class="stat-value">89</div>
+            <div class="stat-value">{{ data.customerCount || 0 }}</div>
+            <div class="stat-label">客户总数</div>
+          </div>
+          <div class="stat-extra">本月新增 +{{ data.monthNewCustomers || 0 }}</div>
+        </el-card>
+      </el-col>
+      <el-col :span="6">
+        <el-card shadow="hover" class="stat-card">
+          <div class="stat-icon" style="background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);">
+            <el-icon size="28"><Document /></el-icon>
+          </div>
+          <div class="stat-info">
+            <div class="stat-value">{{ data.contractCount || 0 }}</div>
             <div class="stat-label">合同总数</div>
           </div>
         </el-card>
       </el-col>
       <el-col :span="6">
-        <el-card class="stat-card">
-          <div class="stat-icon" style="background: #F56C6C;">
-            <el-icon><Money /></el-icon>
+        <el-card shadow="hover" class="stat-card">
+          <div class="stat-icon" style="background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);">
+            <el-icon size="28"><Tickets /></el-icon>
           </div>
           <div class="stat-info">
-            <div class="stat-value">¥2.5M</div>
-            <div class="stat-label">合同总金额</div>
+            <div class="stat-value">{{ data.requirementCount || 0 }}</div>
+            <div class="stat-label">需求工单</div>
           </div>
         </el-card>
       </el-col>
     </el-row>
 
-    <el-row :gutter="20" class="mt-20">
-      <el-col :span="12">
-        <el-card>
+    <!-- 收支概览 -->
+    <el-row :gutter="20" class="finance-cards">
+      <el-col :span="8">
+        <el-card shadow="hover" class="finance-card income">
+          <div class="finance-title">总收入</div>
+          <div class="finance-value">¥ {{ formatMoney(data.totalIncome) }}</div>
+          <div class="finance-sub">本月收入：¥ {{ formatMoney(data.monthIncome) }}</div>
+        </el-card>
+      </el-col>
+      <el-col :span="8">
+        <el-card shadow="hover" class="finance-card expense">
+          <div class="finance-title">总支出</div>
+          <div class="finance-value">¥ {{ formatMoney(data.totalExpense) }}</div>
+          <div class="finance-sub">本月支出：¥ {{ formatMoney(data.monthExpense) }}</div>
+        </el-card>
+      </el-col>
+      <el-col :span="8">
+        <el-card shadow="hover" class="finance-card profit">
+          <div class="finance-title">净利润</div>
+          <div class="finance-value" :class="{ negative: (data.netProfit || 0) < 0 }">
+            ¥ {{ formatMoney(data.netProfit) }}
+          </div>
+          <div class="finance-sub">利润率：{{ getProfitRate() }}%</div>
+        </el-card>
+      </el-col>
+    </el-row>
+
+    <!-- 应收款概览 -->
+    <el-row :gutter="20" class="receivable-cards">
+      <el-col :span="8">
+        <el-card shadow="hover" class="receivable-card">
+          <div class="receivable-title">应收款总额</div>
+          <div class="receivable-value">¥ {{ formatMoney(data.totalReceivable) }}</div>
+        </el-card>
+      </el-col>
+      <el-col :span="8">
+        <el-card shadow="hover" class="receivable-card warning">
+          <div class="receivable-title">待收款金额</div>
+          <div class="receivable-value">¥ {{ formatMoney(data.totalUnpaid) }}</div>
+        </el-card>
+      </el-col>
+      <el-col :span="8">
+        <el-card shadow="hover" class="receivable-card danger">
+          <div class="receivable-title">逾期金额</div>
+          <div class="receivable-value">¥ {{ formatMoney(data.overdueAmount) }}</div>
+        </el-card>
+      </el-col>
+    </el-row>
+
+    <!-- 图表区域 -->
+    <el-row :gutter="20" class="chart-row">
+      <el-col :span="16">
+        <el-card shadow="hover">
+          <template #header>
+            <span>收支趋势（最近12个月）</span>
+          </template>
+          <div ref="trendChartRef" class="chart-container"></div>
+        </el-card>
+      </el-col>
+      <el-col :span="8">
+        <el-card shadow="hover">
           <template #header>
             <span>项目状态分布</span>
           </template>
-          <div class="chart-placeholder">
-            [图表区域]
-          </div>
+          <div ref="projectPieRef" class="chart-container"></div>
+        </el-card>
+      </el-col>
+    </el-row>
+
+    <el-row :gutter="20" class="chart-row">
+      <el-col :span="12">
+        <el-card shadow="hover">
+          <template #header>
+            <span>支出类型分布</span>
+          </template>
+          <div ref="expensePieRef" class="chart-container"></div>
         </el-card>
       </el-col>
       <el-col :span="12">
-        <el-card>
+        <el-card shadow="hover">
           <template #header>
-            <span>最近活动</span>
+            <span>应收款状态分布</span>
           </template>
-          <el-timeline>
-            <el-timeline-item
-              v-for="(activity, index) in activities"
-              :key="index"
-              :timestamp="activity.time"
-            >
-              {{ activity.content }}
-            </el-timeline-item>
-          </el-timeline>
+          <div ref="receivablePieRef" class="chart-container"></div>
         </el-card>
       </el-col>
     </el-row>
@@ -79,65 +141,498 @@
 </template>
 
 <script setup>
-import { User, FolderOpened, Document, Money } from '@element-plus/icons-vue'
+import { ref, reactive, onMounted, onUnmounted, nextTick } from 'vue'
+import { Folder, User, Document, Tickets } from '@element-plus/icons-vue'
+import { ElMessage } from 'element-plus'
+import * as echarts from 'echarts'
+import { getDashboardData } from '../../api/dashboard'
 
-const activities = [
-  { content: '创建了新项目 "XX企业资金管理系统"', time: '2026-02-15 10:30' },
-  { content: '客户 "ABC科技" 信息更新', time: '2026-02-15 09:15' },
-  { content: '合同 "HT2024001" 签署完成', time: '2026-02-14 16:45' },
-  { content: '新增用户 "张三"', time: '2026-02-14 14:20' }
-]
+// 统计数据
+const data = reactive({
+  projectCount: 0,
+  customerCount: 0,
+  contractCount: 0,
+  requirementCount: 0,
+  totalIncome: 0,
+  totalExpense: 0,
+  netProfit: 0,
+  totalReceivable: 0,
+  totalUnpaid: 0,
+  overdueAmount: 0,
+  monthIncome: 0,
+  monthExpense: 0,
+  monthNewProjects: 0,
+  monthNewCustomers: 0,
+  incomeTrend: [],
+  expenseTrend: [],
+  projectStatusDistribution: [],
+  expenseTypeDistribution: [],
+  receivableStatusDistribution: []
+})
+
+// 图表引用
+const trendChartRef = ref(null)
+const projectPieRef = ref(null)
+const expensePieRef = ref(null)
+const receivablePieRef = ref(null)
+
+// 图表实例
+let trendChart = null
+let projectPieChart = null
+let expensePieChart = null
+let receivablePieChart = null
+
+// 格式化金额
+const formatMoney = (value) => {
+  if (value === null || value === undefined) return '0.00'
+  return Number(value).toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+}
+
+// 计算利润率
+const getProfitRate = () => {
+  const income = data.totalIncome || 0
+  if (income === 0) return '0.00'
+  return ((data.netProfit / income) * 100).toFixed(2)
+}
+
+// 加载数据
+const fetchData = async () => {
+  try {
+    const res = await getDashboardData()
+    Object.assign(data, res)
+    
+    // 渲染图表
+    await nextTick()
+    renderTrendChart()
+    renderProjectPieChart()
+    renderExpensePieChart()
+    renderReceivablePieChart()
+  } catch (error) {
+    console.error('加载仪表盘数据失败:', error)
+    ElMessage.error(error.message || '加载数据失败')
+  }
+}
+
+// 渲染收支趋势图
+const renderTrendChart = () => {
+  if (!trendChartRef.value) return
+  
+  if (trendChart) {
+    trendChart.dispose()
+  }
+  
+  trendChart = echarts.init(trendChartRef.value)
+  
+  const months = data.incomeTrend?.map(item => item.month) || []
+  const incomeData = data.incomeTrend?.map(item => item.amount || 0) || []
+  const expenseData = data.expenseTrend?.map(item => item.amount || 0) || []
+  
+  const option = {
+    tooltip: {
+      trigger: 'axis',
+      formatter: (params) => {
+        let result = params[0].axisValue + '<br/>'
+        params.forEach(param => {
+          result += `${param.marker} ${param.seriesName}: ¥${formatMoney(param.value)}<br/>`
+        })
+        return result
+      }
+    },
+    legend: {
+      data: ['收入', '支出'],
+      bottom: 0
+    },
+    grid: {
+      left: '3%',
+      right: '4%',
+      bottom: '15%',
+      top: '10%',
+      containLabel: true
+    },
+    xAxis: {
+      type: 'category',
+      data: months,
+      axisLabel: {
+        rotate: 45
+      }
+    },
+    yAxis: {
+      type: 'value',
+      axisLabel: {
+        formatter: (value) => {
+          if (value >= 10000) return (value / 10000) + 'w'
+          return value
+        }
+      }
+    },
+    series: [
+      {
+        name: '收入',
+        type: 'line',
+        smooth: true,
+        data: incomeData,
+        itemStyle: { color: '#67c23a' },
+        areaStyle: {
+          color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
+            { offset: 0, color: 'rgba(103, 194, 58, 0.3)' },
+            { offset: 1, color: 'rgba(103, 194, 58, 0.05)' }
+          ])
+        }
+      },
+      {
+        name: '支出',
+        type: 'line',
+        smooth: true,
+        data: expenseData,
+        itemStyle: { color: '#f56c6c' },
+        areaStyle: {
+          color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
+            { offset: 0, color: 'rgba(245, 108, 108, 0.3)' },
+            { offset: 1, color: 'rgba(245, 108, 108, 0.05)' }
+          ])
+        }
+      }
+    ]
+  }
+  
+  trendChart.setOption(option)
+}
+
+// 渲染项目状态分布图
+const renderProjectPieChart = () => {
+  if (!projectPieRef.value) return
+  
+  if (projectPieChart) {
+    projectPieChart.dispose()
+  }
+  
+  projectPieChart = echarts.init(projectPieRef.value)
+  
+  const pieData = data.projectStatusDistribution?.map(item => ({
+    name: item.name,
+    value: item.count || 0
+  })) || []
+  
+  const option = {
+    tooltip: {
+      trigger: 'item',
+      formatter: '{b}: {c} ({d}%)'
+    },
+    legend: {
+      orient: 'vertical',
+      right: 10,
+      top: 'center'
+    },
+    series: [
+      {
+        type: 'pie',
+        radius: ['40%', '70%'],
+        center: ['40%', '50%'],
+        avoidLabelOverlap: false,
+        itemStyle: {
+          borderRadius: 10,
+          borderColor: '#fff',
+          borderWidth: 2
+        },
+        label: {
+          show: false
+        },
+        emphasis: {
+          label: {
+            show: true,
+            fontSize: 14,
+            fontWeight: 'bold'
+          }
+        },
+        data: pieData
+      }
+    ]
+  }
+  
+  projectPieChart.setOption(option)
+}
+
+// 渲染支出类型分布图
+const renderExpensePieChart = () => {
+  if (!expensePieRef.value) return
+  
+  if (expensePieChart) {
+    expensePieChart.dispose()
+  }
+  
+  expensePieChart = echarts.init(expensePieRef.value)
+  
+  const pieData = data.expenseTypeDistribution?.map(item => ({
+    name: item.name,
+    value: item.amount || 0
+  })) || []
+  
+  const option = {
+    tooltip: {
+      trigger: 'item',
+      formatter: (params) => {
+        return `${params.name}: ¥${formatMoney(params.value)} (${params.percent}%)`
+      }
+    },
+    legend: {
+      orient: 'vertical',
+      right: 10,
+      top: 'center'
+    },
+    series: [
+      {
+        type: 'pie',
+        radius: ['40%', '70%'],
+        center: ['40%', '50%'],
+        avoidLabelOverlap: false,
+        itemStyle: {
+          borderRadius: 10,
+          borderColor: '#fff',
+          borderWidth: 2
+        },
+        label: {
+          show: false
+        },
+        emphasis: {
+          label: {
+            show: true,
+            fontSize: 14,
+            fontWeight: 'bold'
+          }
+        },
+        data: pieData
+      }
+    ]
+  }
+  
+  expensePieChart.setOption(option)
+}
+
+// 渲染应收款状态分布图
+const renderReceivablePieChart = () => {
+  if (!receivablePieRef.value) return
+  
+  if (receivablePieChart) {
+    receivablePieChart.dispose()
+  }
+  
+  receivablePieChart = echarts.init(receivablePieRef.value)
+  
+  const pieData = data.receivableStatusDistribution?.map(item => ({
+    name: item.name,
+    value: item.amount || 0
+  })) || []
+  
+  const option = {
+    tooltip: {
+      trigger: 'item',
+      formatter: (params) => {
+        return `${params.name}: ¥${formatMoney(params.value)} (${params.percent}%)`
+      }
+    },
+    legend: {
+      orient: 'vertical',
+      right: 10,
+      top: 'center'
+    },
+    series: [
+      {
+        type: 'pie',
+        radius: ['40%', '70%'],
+        center: ['40%', '50%'],
+        avoidLabelOverlap: false,
+        itemStyle: {
+          borderRadius: 10,
+          borderColor: '#fff',
+          borderWidth: 2
+        },
+        label: {
+          show: false
+        },
+        emphasis: {
+          label: {
+            show: true,
+            fontSize: 14,
+            fontWeight: 'bold'
+          }
+        },
+        data: pieData
+      }
+    ]
+  }
+  
+  receivablePieChart.setOption(option)
+}
+
+// 窗口大小变化时重绘图表
+const handleResize = () => {
+  trendChart?.resize()
+  projectPieChart?.resize()
+  expensePieChart?.resize()
+  receivablePieChart?.resize()
+}
+
+// 初始化
+onMounted(() => {
+  fetchData()
+  window.addEventListener('resize', handleResize)
+})
+
+// 清理
+onUnmounted(() => {
+  window.removeEventListener('resize', handleResize)
+  trendChart?.dispose()
+  projectPieChart?.dispose()
+  expensePieChart?.dispose()
+  receivablePieChart?.dispose()
+})
 </script>
 
 <style scoped>
-.dashboard {
+.dashboard-container {
   padding: 20px;
+  background-color: #f5f7fa;
+  min-height: 100%;
+}
+
+/* 概览卡片 */
+.overview-cards {
+  margin-bottom: 20px;
 }
 
 .stat-card {
+  position: relative;
+  padding: 20px;
+}
+
+.stat-card :deep(.el-card__body) {
   display: flex;
   align-items: center;
-  padding: 10px;
+  padding: 20px;
 }
 
 .stat-icon {
   width: 60px;
   height: 60px;
-  border-radius: 8px;
+  border-radius: 12px;
   display: flex;
   align-items: center;
   justify-content: center;
   color: #fff;
-  font-size: 28px;
+  margin-right: 20px;
 }
 
 .stat-info {
-  margin-left: 15px;
   flex: 1;
 }
 
 .stat-value {
-  font-size: 24px;
-  font-weight: bold;
+  font-size: 28px;
+  font-weight: 600;
   color: #303133;
 }
 
 .stat-label {
   font-size: 14px;
   color: #909399;
-  margin-top: 5px;
+  margin-top: 4px;
 }
 
-.mt-20 {
-  margin-top: 20px;
+.stat-extra {
+  position: absolute;
+  right: 20px;
+  top: 20px;
+  font-size: 12px;
+  color: #67c23a;
 }
 
-.chart-placeholder {
-  height: 300px;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  background: #f5f7fa;
+/* 收支卡片 */
+.finance-cards {
+  margin-bottom: 20px;
+}
+
+.finance-card {
+  text-align: center;
+  padding: 20px;
+}
+
+.finance-card :deep(.el-card__body) {
+  padding: 25px;
+}
+
+.finance-title {
+  font-size: 14px;
+  color: #909399;
+  margin-bottom: 10px;
+}
+
+.finance-value {
+  font-size: 32px;
+  font-weight: 600;
+  margin-bottom: 10px;
+}
+
+.finance-value.negative {
+  color: #f56c6c;
+}
+
+.finance-sub {
+  font-size: 12px;
   color: #909399;
 }
+
+.finance-card.income .finance-value {
+  color: #67c23a;
+}
+
+.finance-card.expense .finance-value {
+  color: #f56c6c;
+}
+
+.finance-card.profit .finance-value {
+  color: #409eff;
+}
+
+/* 应收款卡片 */
+.receivable-cards {
+  margin-bottom: 20px;
+}
+
+.receivable-card {
+  text-align: center;
+  padding: 15px;
+}
+
+.receivable-card :deep(.el-card__body) {
+  padding: 20px;
+}
+
+.receivable-title {
+  font-size: 14px;
+  color: #909399;
+  margin-bottom: 8px;
+}
+
+.receivable-value {
+  font-size: 24px;
+  font-weight: 600;
+  color: #303133;
+}
+
+.receivable-card.warning .receivable-value {
+  color: #e6a23c;
+}
+
+.receivable-card.danger .receivable-value {
+  color: #f56c6c;
+}
+
+/* 图表区域 */
+.chart-row {
+  margin-bottom: 20px;
+}
+
+.chart-container {
+  height: 350px;
+}
 </style>