调整趋势图功能,加入了查询数据库,分析群聊聊天数量的功能
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@@ -464,9 +464,6 @@
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return;
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}
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// 清空容器
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container.innerHTML = '';
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// 准备数据
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const labels = data.dates || [];
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const messageData = (data.counts || []).map(count => parseInt(count) || 0);
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@@ -476,16 +473,77 @@
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return;
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}
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// 创建表格显示数据
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// 销毁之前的图表实例(如果存在)
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if (this.charts.trendChart) {
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this.charts.trendChart.destroy();
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}
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// 创建canvas元素
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container.innerHTML = '<canvas id="messageChart" width="100%" height="300"></canvas>';
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const ctx = document.getElementById('messageChart').getContext('2d');
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// 使用Chart.js创建图表
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this.charts.trendChart = new Chart(ctx, {
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type: 'bar',
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data: {
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labels: labels,
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datasets: [{
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label: '消息数量',
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data: messageData,
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backgroundColor: 'rgba(75, 192, 192, 0.5)',
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borderColor: 'rgba(75, 192, 192, 1)',
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borderWidth: 1
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}]
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},
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options: {
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responsive: true,
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maintainAspectRatio: false,
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scales: {
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y: {
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beginAtZero: true,
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title: {
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display: true,
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text: '消息数量'
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}
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},
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x: {
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title: {
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display: true,
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text: '日期'
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}
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}
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},
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plugins: {
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title: {
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display: true,
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text: '群组消息数量趋势',
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font: {
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size: 16
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}
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},
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tooltip: {
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callbacks: {
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label: function(context) {
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return `消息数量: ${context.raw}`;
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}
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}
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}
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}
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}
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});
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// 添加表格显示详细数据
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let tableHtml = `
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<table class="el-table" style="width: 100%;">
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<thead>
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<tr>
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<th style="padding: 12px 0; text-align: center; background-color: #f5f7fa; color: #606266; font-weight: bold; border-bottom: 1px solid #ebeef5;">日期</th>
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<th style="padding: 12px 0; text-align: center; background-color: #f5f7fa; color: #606266; font-weight: bold; border-bottom: 1px solid #ebeef5;">消息数量</th>
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</tr>
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</thead>
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<tbody>
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<div style="margin-top: 20px;">
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<h4 style="margin: 10px 0;">详细数据</h4>
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<table class="el-table" style="width: 100%;">
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<thead>
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<tr>
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<th style="padding: 12px 0; text-align: center; background-color: #f5f7fa; color: #606266; font-weight: bold; border-bottom: 1px solid #ebeef5;">日期</th>
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<th style="padding: 12px 0; text-align: center; background-color: #f5f7fa; color: #606266; font-weight: bold; border-bottom: 1px solid #ebeef5;">消息数量</th>
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</tr>
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</thead>
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<tbody>
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`;
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for (let i = 0; i < labels.length; i++) {
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@@ -498,39 +556,15 @@
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}
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tableHtml += `
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</tbody>
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</table>
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`;
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container.innerHTML = tableHtml;
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// 添加简单的可视化条形图
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const maxValue = Math.max(...messageData);
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let chartHtml = `
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<div style="margin-top: 20px;">
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<h4 style="margin: 10px 0;">消息数量可视化</h4>
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<div style="display: flex; flex-direction: column; gap: 5px;">
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`;
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for (let i = 0; i < labels.length; i++) {
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const percentage = (messageData[i] / maxValue) * 100;
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chartHtml += `
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<div style="display: flex; align-items: center; margin-bottom: 5px;">
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<span style="width: 80px; text-align: right; margin-right: 10px;">${labels[i]}</span>
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<div style="flex-grow: 1; display: flex; align-items: center;">
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<div style="background-color: rgba(75, 192, 192, 0.7); height: 20px; width: ${percentage}%; min-width: 2px; border-radius: 2px;"></div>
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<span style="margin-left: 10px;">${messageData[i]}</span>
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</div>
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</div>
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`;
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}
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chartHtml += `
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</div>
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</tbody>
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</table>
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</div>
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`;
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container.innerHTML += chartHtml;
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// 在图表下方添加表格
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const tableContainer = document.createElement('div');
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tableContainer.innerHTML = tableHtml;
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container.parentNode.insertBefore(tableContainer, container.nextSibling);
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} catch (error) {
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console.error('渲染趋势数据出错:', error);
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