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Export "Project Work-Hour Summary" to Excel with Java (Merge & Grouped Reports)

JQuick-ExcelMerge & Grouped Reports

Merge & Grouped ReportsScene 0037

Groups members' work hours by project, computing Labor Cost = Hours × Rate per row, with a labor-cost subtotal row after each project and a grand total for all projects in the last row; the project-name column is vertically merged into one block. Java only groups and pre-processes the rows; all statistics and layout are declared in XML.

Download the Excel fileView raw XML configBack to all demos

Project Work-Hour Summary — Merge & Grouped Reports
Full screenshot of the exported xlsx

About this demo

This demo exports the "Project Work-Hour Summary" workbook: 1 data sheet(s); MAPPING over 6 columns (项目, 成员, 角色, 工时(h), 费率, 工时费), 8 formula(s), 5 style rule(s). On the Java side it only builds the data and calls exportProjectTimesheet() once — everything else is driven by the config.

It belongs to the "Merge & Grouped Reports" group: MERGE group blocks with SUBTOTAL/TOTAL rows: each group column merges into one vertical block, every group closes with a subtotal and the report ends with a grand total.

What you can copy from this page

  • The complete Java test class (94 lines, runnable as-is)
  • The complete XML config (38 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 merged cells, Java Excel group subtotal and total rows, Apache POI merged cells export, Java grouped report export, export Project Work-Hour Summary to Excel with Java

Output specs

Scene no.
0037
Group
Merge & Grouped Reports
Config lines
38
Source lines
94

Java source · Merge0037ProjectTimesheetDemo.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.merge;

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 Merge0037ProjectTimesheetDemo {

    private static final String XML = "jquick/biz/merge/0037_merge_project-timesheet.xml";

    /** 导出：Java 分组 + 插小计行，项目列纵向合并，工时费由 XML FORMULAS 完成。 */
    @Test
    public void exportProjectTimesheet() throws Exception {
        // 1. 构造扁平工时明细（Java 不做任何金额计算）
        List<JQuickRow> flat = new ArrayList<>();
        flat.add(line("ERP 系统升级", "张伟", "架构师", 120, 180));
        flat.add(line("ERP 系统升级", "李娜", "开发工程师", 160, 120));
        flat.add(line("ERP 系统升级", "王强", "测试工程师", 80, 100));
        flat.add(line("移动端改版", "赵敏", "开发工程师", 140, 120));
        flat.add(line("移动端改版", "陈刚", "UI 设计", 60, 130));

        // 2. Java 分组并插入小计 / 合计占位行（工时费留给 FORMULAS）
        List<JQuickRow> rows = groupWithSubtotal(flat);

        File out = new File("D:/test/excel/biz/merge/0037_merge_project-timesheet.xlsx");
        try (OutputStream os = new FileOutputStream(out)) {
            JQuickParseHandler parser = new JQuickExcelExportXmlParseFactory("mahogany", rows, os);
            JQuickFactory factory = new JQuickXmlFactory(parser, XML);
            Merge0037ProjectTimesheetService service = factory.createApi(Merge0037ProjectTimesheetService.class);
            service.exportProjectTimesheet("field", "value");
        }

    }

    /** 按项目分组，项目切换处插入小计行，末尾追加合计行（不做金额计算）。 */
    private static List<JQuickRow> groupWithSubtotal(List<JQuickRow> flat) {
        List<JQuickRow> out = new ArrayList<>();
        String current = null;
        for (JQuickRow r : flat) {
            String project = String.valueOf(r.get("a"));
            if (current != null && !current.equals(project)) {
                out.add(subtotalRow(current));
            }
            out.add(r);
            current = project;
        }
        if (current != null) {
            out.add(subtotalRow(current));
        }
        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);
        total.put("f", null);
        out.add(total);
        return out;
    }

    /** 小计占位行：只写项目与小计文字，工时费留空由 FORMULAS 计算。 */
    private static JQuickRow subtotalRow(String project) {
        JQuickRow row = new JQuickRow();
        row.put("a", project);
        row.put("b", "小计");
        row.put("c", null);
        row.put("d", null);
        row.put("e", null);
        row.put("f", null);
        return row;
    }

    /** 构造一条工时明细（a=项目，b=成员，c=角色，d=工时，e=费率，f=工时费留空）。 */
    private static JQuickRow line(String project, String member, String role, double hours, double rate) {
        JQuickRow row = new JQuickRow();
        row.put("a", project);
        row.put("b", member);
        row.put("c", role);
        row.put("d", hours);
        row.put("e", rate);
        row.put("f", 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("mahogany", rows, os);
JQuickFactory factory = new JQuickXmlFactory(parser, XML);
Merge0037ProjectTimesheetService service = factory.createApi(Merge0037ProjectTimesheetService.class);

XML config · 0037_merge_project-timesheet.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.merge.Merge0037ProjectTimesheetService">

    <!-- 导出：项目工时统计表 -->
    <excel name="exportProjectTimesheet" returnClass="void">
        <![CDATA[
            EXPORT WITH SHEET="项目工时统计表", HEADER=true,
                MAPPING={"a":"项目","b":"成员","c":"角色","d":"工时(h)","e":"费率","f":"工时费"},
                FORMAT={"d":"#,##0.0","e":"#,##0.00","f":"#,##0.00"},
                FORMULAS={
                    F2:'D2*E2',F3:'D3*E3',F4:'D4*E4',F5:'SUM(F2:F4)',
                    F6:'D6*E6',F7:'D7*E7',F8:'SUM(F6:F7)',
                    F9:'F5+F8'
                },
                STYLE={
                    ROW 5:{bold:true,fillPattern:solid_foreground,fillForegroundColor:lightYellow,alignment:right,verticalAlignment:center},
                    ROW 8:{bold:true,fillPattern:solid_foreground,fillForegroundColor:lightYellow,alignment:right,verticalAlignment:center},
                    ROW 9:{bold:true,fillPattern:solid_foreground,fillForegroundColor:lightYellow,alignment:right,verticalAlignment:center}
                },
                MERGE:{
                    RANGE A2:A4 WITH MERGE_WITH_FIRST,
                    RANGE A6:A7 WITH MERGE_WITH_FIRST
                }
        ]]>
    </excel>

    <!-- 导入解析：读取导出的项目工时统计表 -->
    <excel name="importProjectTimesheet" returnClass="java.util.List">
        <![CDATA[
            IMPORT WITH SHEET="项目工时统计表", HEADER=true,
                MAPPING={"项目":"project","成员":"member","角色":"role","工时(h)":"hours","费率":"rate","工时费":"laborCost"}
        ]]>
    </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.