Java Excel实现数据可视化预警

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.xls</artifactId>
        <version>15.5.1</version>
    </dependency>
</dependencies>

import com.spire.xls.*;
import java.awt.*;
 
public class HighlightThreshold {
   public static void main(String[] args) {
 
       // 创建 Workbook 实例并加载 Excel 文件
       Workbook workbook = new Workbook();
       workbook.loadFromFile("/input/销售汇总.xlsx");
 
       // 获取第一个工作表
       Worksheet sheet = workbook.getWorksheets().get(0);
 
       // 对 E2:E15 区域添加条件格式：销售额小于 5000 时背景变红
       ConditionalFormatWrapper format = sheet.getCellRange("E2:E15")
               .getConditionalFormats().addCondition();
       format.setFormatType(ConditionalFormatType.CellValue);
       format.setOperator(ComparisonOperatorType.Less);
       format.setFirstFormula("5000"); 
       format.setBackColor(Color.red);
 
       // 保存文档
       workbook.saveToFile("/output/高亮数值.xlsx", ExcelVersion.Version2016);
   }
}

import com.spire.xls.*;
import com.spire.xls.core.IConditionalFormat;
import com.spire.xls.core.spreadsheet.collections.XlsConditionalFormats;
 
import java.awt.*;
 
public class Highlightwithtrafficlight {
   public static void main(String[] args) {
       // 新建实例
       Workbook workbook = new Workbook();
       workbook.loadFromFile("/input/销售汇总.xlsx");
 
       // 获取第一个工作表
       Worksheet sheet = workbook.getWorksheets().get(0);
 
       // 选中 B2:B15 区域
       CellRange targetRange = sheet.getCellRange("B2:B15");
 
       // 创建条件格式集合并应用到选中区域
       XlsConditionalFormats conditional = sheet.getConditionalFormats().add();
       conditional.addRange(targetRange);
 
       // 添加图标集条件格式：三色交通灯
       IConditionalFormat format = conditional.addCondition();
       format.setFormatType(ConditionalFormatType.IconSet);
       format.getIconSet().setIconSetType(IconSetType.ThreeTrafficLights1);
 
       // 保存结果文件
       workbook.saveToFile("/output/库存预警-交通灯1.xlsx", ExcelVersion.Version2013);
   }
}

import com.spire.xls.*;
import java.awt.*;
 
public class HighlightWithFormula {
   public static void main(String[] args) {
 
       // 创建实例并导入 Excel 文件
       Workbook workbook = new Workbook();
       workbook.loadFromFile("/input/销售汇总.xlsx");
 
       // 获取第一个工作表
       Worksheet sheet = workbook.getWorksheets().get(0);
 
       // 设置条件格式区域
       CellRange range = sheet.getCellRange("A2:E15");
 
       // 添加公式条件格式：当库存 < 50 且销售额 < 5000 时，格式生效
       ConditionalFormatWrapper format = range.getConditionalFormats().addCondition();
       format.setFormatType(ConditionalFormatType.Formula);
       format.setFirstFormula("=AND($B2<50,$E2<5000)");
       format.setBackColor(Color.ORANGE);
 
       // 保存结果
       workbook.saveToFile("output/高亮数值-公式.xlsx", ExcelVersion.Version2016);
   }
}