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Export "Product Sales Monthly Trend" to Excel with Java (Formula & Calculated Reports)

JQuick-ExcelFormula & Calculated Reports

Formula & Calculated ReportsScene 0065

Registers the sales quantity and unit price of a single product by month, computing Sales Amount = Quantity × Unit Price per row and the Month-over-Month Growth Rate = (Current Sales - Previous Sales) / Previous Sales month by month, with the last row summarizing quantity and sales amount. Implemented declaratively in pure XML — no Java business code required.

Download the Excel fileView raw XML configBack to all demos

Product Sales Monthly Trend — Formula & Calculated Reports
Full screenshot of the exported xlsx

About this demo

This demo exports the "Product Sales Monthly Trend" workbook: 1 data sheet(s); MAPPING over 5 columns (月份, 销售数量, 单价, 销售额, 环比增长率), 12 formula(s), 1 style rule(s). On the Java side it builds 6 data rows and calls exportProductSalesTrend() once — everything else is driven by the config.

It belongs to the "Formula & Calculated Reports" group: FORMULAS — inline expressions and aggregate functions such as Quantity × Unit Price or Balance = Receivable − Received, with SUM totals on the last row.

What you can copy from this page

  • The complete Java test class (60 lines, runnable as-is)
  • The complete XML config (32 lines: mapping, formulas, styles, charts and every other rule)
  • The exported xlsx file (real output, comparable with the preview above)

Related searches: Java export Excel formulas, Java Excel SUM formula export, Apache POI write formula example, Java computed column export, export Product Sales Monthly Trend to Excel with Java

Output specs

Scene no.
0065
Group
Formula & Calculated Reports
Config lines
32
Source lines
60

Java source · Formulas0065ProductSalesTrendDemo.java

This is the complete test class that produced the Excel file above — copy it and run as-is. Java only builds the data rows; all statistics and styling live in the XML config.

package com.github.paohaijiao.biz.formulas;

import com.github.paohaijiao.statement.JQuickRow;
import com.github.paohaijiao.xml.ex.JQuickExcelExportXmlParseFactory;
import com.github.paohaijiao.xml.factory.JQuickFactory;
import com.github.paohaijiao.xml.factory.JQuickXmlFactory;
import com.github.paohaijiao.xml.handler.JQuickParseHandler;
import org.junit.Test;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

public class Formulas0065ProductSalesTrendDemo {

    private static final String XML = "jquick/biz/formulas/0065_formulas_product-sales-trend.xml";

    /** 导出：纯 XML 完成销售额、环比增长率与合计。 */
    @Test
    public void exportProductSalesTrend() throws Exception {
        List<JQuickRow> rows = new ArrayList<>();
        // d=销售额、e=环比增长率 留空，由 FORMULAS 计算（首月无环比）
        rows.add(month("2026-01", 1200, 199.00));
        rows.add(month("2026-02", 1500, 199.00));
        rows.add(month("2026-03", 1350, 205.00));
        rows.add(month("2026-04", 1800, 205.00));
        rows.add(month("2026-05", 2000, 210.00));
        // 合计占位行：数量与销售额合计留给 FORMULAS
        JQuickRow total = new JQuickRow();
        total.put("a", "合计");
        total.put("b", null);
        total.put("c", null);
        total.put("d", null);
        total.put("e", null);
        rows.add(total);

        File out = new File("D:/test/excel/biz/formulas/0065_formulas_product-sales-trend.xlsx");
        try (OutputStream os = new FileOutputStream(out)) {
            JQuickParseHandler parser = new JQuickExcelExportXmlParseFactory("oceanBlue", rows, os);
            JQuickFactory factory = new JQuickXmlFactory(parser, XML);
            Formulas0065ProductSalesTrendService service = factory.createApi(Formulas0065ProductSalesTrendService.class);
            service.exportProductSalesTrend("field", "value");
        }

    }

    /** 构造一条月度明细（a=月份，b=数量，c=单价，d=销售额，e=环比增长率）。 */
    private static JQuickRow month(String month, int quantity, double unitPrice) {
        JQuickRow row = new JQuickRow();
        row.put("a", month);
        row.put("b", quantity);
        row.put("c", unitPrice);
        row.put("d", null);
        row.put("e", null);
        return row;
    }
}

Minimal invocation (4 lines)

The core is these four lines: hand the rows to the parser, the parser to the factory, get a typed Service and call it. Copy them straight into your project.

// rows 由业务代码构造（List<JQuickRow>），os 为输出流，见下方完整源码
JQuickParseHandler parser = new JQuickExcelExportXmlParseFactory("oceanBlue", rows, os);
JQuickFactory factory = new JQuickXmlFactory(parser, XML);
Formulas0065ProductSalesTrendService service = factory.createApi(Formulas0065ProductSalesTrendService.class);

XML config · 0065_formulas_product-sales-trend.xml

Formats (FORMAT), formulas (FORMULAS) and styles (STYLE) are all declared in this XML, fully decoupled from the Java code. The full config is below — copy it as-is.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE excels PUBLIC "-//PAOHAIJIAO//DTD API EXCEL 1.0//EN"
        "classpath:paohaijiao/dtd/Jquick-excel.dtd">
<excels namespace="com.github.paohaijiao.biz.formulas.Formulas0065ProductSalesTrendService">

    <!-- 导出：产品销售月度趋势表 -->
    <excel name="exportProductSalesTrend" returnClass="void">
        <![CDATA[
            EXPORT WITH SHEET="产品销售月度趋势表", HEADER=true,
                MAPPING={"a":"月份","b":"销售数量","c":"单价","d":"销售额","e":"环比增长率"},
                FORMAT={"b":"#,##0","c":"#,##0.00","d":"#,##0.00","e":"0.00%"},
                FORMULAS={
                    D2:'B2*C2',D3:'B3*C3',D4:'B4*C4',D5:'B5*C5',D6:'B6*C6',
                    E3:'(D3-D2)/D2',E4:'(D4-D3)/D3',E5:'(D5-D4)/D4',E6:'(D6-D5)/D5',
                    B7:'SUM(B2:B6)',D7:'SUM(D2:D6)'
                },
                STYLE={
                    ROW 7:{bold:true,fillPattern:solid_foreground,fillForegroundColor:lightYellow,alignment:right,verticalAlignment:center}
                }
        ]]>
    </excel>

    <!-- 导入解析：读取导出的月度趋势表 -->
    <excel name="importProductSalesTrend" returnClass="java.util.List">
        <![CDATA[
            IMPORT WITH SHEET="产品销售月度趋势表", HEADER=true,
                MAPPING={"月份":"month","销售数量":"quantity","单价":"unitPrice","销售额":"salesAmount","环比增长率":"growthRate"}
        ]]>
    </excel>

</excels>

More demos in this group

The Excel file, preview image, XML config and source code on this page were all produced by a real JQuick-Excel run and are free to copy into your own project.