POI-tl 知识整理：整理4 自定义渲染策略生成动态表格

1 首先新建渲染策略DetailTablePolicy，继承于抽象表格策略

模板

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package com.example.service.Impl;

import com.deepoove.poi.data.RowRenderData;
import com.deepoove.poi.policy.DynamicTableRenderPolicy;
import com.deepoove.poi.policy.TableRenderPolicy;
import com.deepoove.poi.util.TableTools;
import com.example.entity.DetailData;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;

import java.util.List;

public class DetailTablePolicy extends DynamicTableRenderPolicy {

    // 货品填充数据所在行数
    int goodsStartRow = 2;
    // 人工费填充数据所在行数
    int laborsStartRow = 5;

    @Override
    public void render(XWPFTable table, Object data) throws Exception {
        if (null == data) return;

        DetailData detailData = (DetailData) data;

        System.out.println(data);
        // 人工费循环渲染
        List labors = detailData.getLabors();
        if (null != labors) {
            table.removeRow(laborsStartRow);

            // 循环插入行
            for (int i = 0; i < labors.size(); i++) {
                XWPFTableRow insertNewTableRow = table.insertNewTableRow(laborsStartRow);
                for (int j = 0; j < 7; j++) insertNewTableRow.createCell();
                // 合并单元格
                TableTools.mergeCellsHorizonal(table, laborsStartRow, 0, 3);

                // 渲染单行人工数据
                TableRenderPolicy.Helper.renderRow(table.getRow(laborsStartRow), labors.get(i));
            }
        }

        // 货品循环渲染
        List goods = detailData.getGoods();
        if (null != goods) {
            table.removeRow(goodsStartRow);

            // 循环插入行
            for (int i = 0; i < goods.size(); i++) {
                XWPFTableRow insertNewTableRow = table.insertNewTableRow(goodsStartRow);
                for (int j = 0; j < 7; j++) {
                    insertNewTableRow.createCell();
                }

                TableRenderPolicy.Helper.renderRow(table.getRow(goodsStartRow), goods.get(i));
            }
        }
    }
}

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2 测试

    @Test
    public void testDynamicGenerateTable() throws Exception{

        DetailData detailTable = new DetailData();

        // 初始化数据
        RowRenderData good = Rows.of("4", "墙纸", "书房+卧室", "1500", "/", "400", "1600").center().create();
        List goods = Arrays.asList(good, good, good, good);

        RowRenderData labor = Rows.of("油漆工", "2", "200", "400").center().create();
        List labors = Arrays.asList(labor, labor, labor, labor);
        detailTable.setGoods(goods);
        detailTable.setLabors(labors);

        Configure config = Configure.builder().bind("detail_table", new DetailTablePolicy()).build();

        XWPFTemplate template = XWPFTemplate.compile("D:\\Idea-projects\\POI_word\\templates_payment.docx",config);

        Map map = new HashMap<>();

        map.put("detail_table", detailTable);

        template.render(map);

        FileOutputStream fileOutputStream = new FileOutputStream("D:\\Idea-projects\\POI_word\\output_payment.docx");
        template.writeAndClose(fileOutputStream);

        template.close();
    }

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结果