导出excel,去掉图表;

das/pom.xml

@@ -32,7 +32,6 @@
         <disruptor.version>3.4.4</disruptor.version>
         <aviator.version>5.4.3</aviator.version>
         <minio.version>8.4.3</minio.version>
-        <jfreechart.version>1.5.3</jfreechart.version>
     </properties>
 
     <dependencies>
@@ -217,11 +216,6 @@
             <artifactId>minio</artifactId>
             <version>${minio.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.jfree</groupId>
-            <artifactId>jfreechart</artifactId>
-            <version>${jfreechart.version}</version>
-        </dependency>
     </dependencies>
 
     <build>

das/src/main/java/com/das/modules/page/service/impl/StatisticalAnalysisServiceImpl.java

@@ -28,35 +28,18 @@ import org.apache.commons.collections4.CollectionUtils;
 import org.apache.poi.ss.usermodel.ClientAnchor;
 import org.apache.poi.ss.usermodel.HorizontalAlignment;
 import org.apache.poi.ss.usermodel.VerticalAlignment;
-import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.ss.util.CellRangeAddress;
 import org.apache.poi.xddf.usermodel.chart.*;
 import org.apache.poi.xssf.usermodel.XSSFChart;
-import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
 import org.apache.poi.xssf.usermodel.XSSFDrawing;
 import org.apache.poi.xssf.usermodel.XSSFSheet;
 import org.jetbrains.annotations.NotNull;
-import org.jfree.chart.ChartFactory;
-import org.jfree.chart.ChartUtils;
-import org.jfree.chart.JFreeChart;
-import org.jfree.chart.axis.CategoryAxis;
-import org.jfree.chart.axis.CategoryLabelPositions;
-import org.jfree.chart.plot.CategoryPlot;
-import org.jfree.chart.plot.PlotOrientation;
-import org.jfree.chart.renderer.category.CategoryItemRenderer;
-import org.jfree.chart.title.LegendTitle;
-import org.jfree.chart.title.TextTitle;
-import org.jfree.data.category.DefaultCategoryDataset;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-import java.awt.*;
-import java.io.File;
-import java.io.IOException;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.text.SimpleDateFormat;
-import java.util.List;
 import java.util.*;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
@@ -105,13 +88,9 @@ public class StatisticalAnalysisServiceImpl implements StatisticalAnalysisServic
         List<Map<String, Object>> dataList = new ArrayList<>();
         // 遍历数据，填充Excel数据集
         setTrendAnalyseExcelValue(mapsList, dataList);
-        //获取图表类别集
-        List<String> chartKey = getCharKey(map);
         ExcelWriter writer = ExcelUtil.getWriter(RandomUtil.randomInt(100, 1000) + "statistics" + ".xlsx");
         //设置Excel样式
         setExcelStyle(writer, map, dataList);
-        //生成折线图
-        addChartToExcel(writer,dataList,StatisticalAnalysisConstant.TREND_ANALYSE,chartKey);
         //下载Excel
         downloadExcel(response, writer,StatisticalAnalysisConstant.TREND_ANALYSE);
     }
@@ -150,18 +129,9 @@ public class StatisticalAnalysisServiceImpl implements StatisticalAnalysisServic
         setPowerCurveExcelValue(resultMap, dataList, curveItemEntitieList);
         //获取功率曲线的列
         LinkedHashMap<String, String> map = getPowerCurveColumnName(param);
-        //获取图表类别集
-        List<String> chartKey = getCharKey(map);
         ExcelWriter writer = ExcelUtil.getWriter(RandomUtil.randomInt(100, 1000) + "statistics" + ".xlsx");
         //设置Excel样式
         setExcelStyle(writer, map, dataList);
-        //生成折线图
-        if (param.getDisplayCurve()==1){
-            addChartToExcel(writer,dataList,StatisticalAnalysisConstant.POWER_CURVE,chartKey);
-        }else {
-            //生成散点图
-            addScattersChartToExcel(writer,dataList,StatisticalAnalysisConstant.POWER_CURVE,chartKey);
-        }
         //下载Excel
         downloadExcel(response, writer,StatisticalAnalysisConstant.POWER_CURVE);
     }
@@ -191,15 +161,11 @@ public class StatisticalAnalysisServiceImpl implements StatisticalAnalysisServic
         //自定义别名 别名的key和实体类中的名称要对应上！
         LinkedHashMap<String, String> map = gettrendContrastColumnName(param);
         List<Map<String, Object>> dataList = new ArrayList<>();
-        //图表类别集
-        List<String> charKey = getCharKey(map);
         // 遍历数据，将数据添加到dataList中
         setTrendContrastExcelValue(maps, dataList);
         ExcelWriter writer = ExcelUtil.getWriter(RandomUtil.randomInt(100, 1000) + "statistics" + ".xlsx");
         //设置Excel样式
         setExcelStyle(writer, map, dataList);
-        //生成折线图
-        addChartToExcel(writer,dataList,StatisticalAnalysisConstant.TREND_CONTRAST,charKey);
         //下载Excel
         downloadExcel(response, writer,StatisticalAnalysisConstant.TREND_CONTRAST);
     }
@@ -284,22 +250,7 @@ public class StatisticalAnalysisServiceImpl implements StatisticalAnalysisServic
         }
     }
 
-    /**
+
-     * 获取图表类别集
-     * @param map Excel的列
-     * @return 图表类别集
-     */
-    private  List<String> getCharKey(LinkedHashMap<String, String> map) {
-        //获取图表类别集
-        List<String> chartKey = new ArrayList<>();
-        for (Map.Entry<String, String> stringStringEntry : map.entrySet()) {
-            String value = stringStringEntry.getValue();
-            if (!value.contains("时间")){
-                chartKey.add(value);
-            }
-        }
-        return chartKey;
-    }
 
     /**
      * 趋势对比填充Excel数据集
@@ -542,75 +493,20 @@ public class StatisticalAnalysisServiceImpl implements StatisticalAnalysisServic
     }
 
     /**
-     * 使用JFreeChart生成折线图(图片),已弃用
+     * 获取图表类别集
-     * @param data     excel数据集
+     * @param map Excel的列
-     * @param writer   excel对象
+     * @return 图表类别集
-     * @param dataset  图表数据集
-     * @param titleStr 标题
      */
-    private void createChart(List<Map<String, Object>> data, ExcelWriter writer,
+    private  List<String> getCharKey(LinkedHashMap<String, String> map) {
-                             DefaultCategoryDataset dataset, String titleStr) {
+        //获取图表类别集
-        // 获取Sheet对象
+        List<String> chartKey = new ArrayList<>();
-        XSSFSheet xssfSheet = (XSSFSheet) writer.getSheet();
+        for (Map.Entry<String, String> stringStringEntry : map.entrySet()) {
-        Workbook workbook = writer.getWorkbook();
+            String value = stringStringEntry.getValue();
-        JFreeChart chart = ChartFactory.createLineChart(
+            if (!value.contains("时间")){
-                titleStr, // 图表标题
+                chartKey.add(value);
-                "", // 横轴标签
+            }
-                "", // 纵轴标签
-                dataset, // 数据集
-                PlotOrientation.VERTICAL, // 图表方向
-                true, // 是否显示图例
-                true, // 是否使用工具提示
-                false // 是否生成URL链接
-        );
-        // 设置图表标题的字体
-        TextTitle title = chart.getTitle();
-        title.setFont(new java.awt.Font("SimSun", java.awt.Font.BOLD, 16));
-        // 获取图表的绘图区域
-        CategoryPlot plot = chart.getCategoryPlot();
-        // 设置横轴标签
-        CategoryAxis domainAxis = plot.getDomainAxis();
-        domainAxis.setLabelFont(new java.awt.Font("SimSun", java.awt.Font.PLAIN, 12));
-        domainAxis.setMaximumCategoryLabelLines(1); // 可以控制标签行数
-        domainAxis.setCategoryMargin(3); // 控制类别之间的间距
-        domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45); // 旋转横轴标签为45度,90度为:UP_90
-        domainAxis.setLabelFont(new Font("SansSerif", Font.PLAIN, 7));//调整字体大小
-//        if (data.size() > 50) {
-//            domainAxis.setVisible(false); // 隐藏横坐标
-//        }
-        // 设置图例的字体
-        LegendTitle legend = chart.getLegend();
-        if (legend != null) {
-            legend.setItemFont(new java.awt.Font("SimSun", java.awt.Font.PLAIN, 12));
         }
-        // 设置绘图区域的背景颜色
+        return chartKey;
-        plot.setBackgroundPaint(Color.WHITE);
-        // 设置绘图区域的边框
-        plot.setOutlinePaint(Color.LIGHT_GRAY);
-        plot.setOutlineVisible(true);
-        // 设置网格线的颜色
-        plot.setDomainGridlinePaint(Color.LIGHT_GRAY);
-        plot.setRangeGridlinePaint(Color.LIGHT_GRAY);
-        // 设置线条的宽度
-        CategoryItemRenderer renderer1 = plot.getRenderer();
-        renderer1.setSeriesStroke(0, new BasicStroke(2.0f)); // 设置线条宽度
-        // 将图表保存为 PNG 文件
-        String chartFilePath = "lineChart.png";
-        // 调整图表尺寸
-        int width = 750;
-        int height = 400;
-        try {
-            ChartUtils.saveChartAsPNG(new File(chartFilePath), chart, width, height);
-            byte[] bytes = java.nio.file.Files.readAllBytes(java.nio.file.Paths.get(chartFilePath));
-            int pictureIdx = workbook.addPicture(bytes, Workbook.PICTURE_TYPE_PNG);
-            // 计算数据的最后一行,创建图表插入位置的锚点
-            XSSFClientAnchor anchor = new XSSFClientAnchor(0, 1, 0, 1, 0, data.size() + 2, 15, data.size() + 30);
-            XSSFDrawing drawing = xssfSheet.createDrawingPatriarch();
-            drawing.createPicture(anchor, pictureIdx);
-        } catch (IOException e) {
-            throw new ServiceException("图表保存失败==" + e);
-        }
-
     }
 
     /**