目录
- 实现步骤
- 1.准备模板
- 2.添加依赖
- 3.代码实现
Poi-tl官网:Poi-tl Documentation
最近又碰上了导出,真的服了,还是低代码的导出,其中过程的曲折真的是一言难尽..........平台各种适配,依赖冲突,真的是崩溃.......
简单说一下为什么使用Poi-tl,最开始想用的是poi实现,但是结果就是poi不好控制图片的位置,因为图片插入之后是“浮于文字上方”,单纯的插入图片会占行数,为了方便控制格式后续就采用了poi-tl但是他同样也不支持插入图片之后将图片设置为“浮于文字上方”,也是找了一些博客参考,最终实现了想要的效果
参考博客:poi-tl导出word实现图片环绕方式为浮于在文字上方办法
老样子上效果图:
实现步骤
1.准备模板
2.添加依赖
<dependency> <groupId>com.deepoove</groupId> <artifactId>poi-tl</artifactId> <version>1.10.0-beta</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>5.2.3</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooXML</artifactId> <version>5.2.3</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml-schemas</artifactId> <version>4.1.2</version> </dependency>
3.代码实现
package com.example.demo; import cn.hutool.core.util.URLUtil; import com.deepoove.poi.XwpFTemplate; import com.deepoove.poi.config.Configure; import com.deepoove.poi.config.ConfigureBuilder; import com.deepoove.poi.data.PictureRenderData; import com.deepoove.poi.data.Pictures; import com.deepoove.poi.plugin.table.LoopRowTableRenderPolicy; import com.example.controller.MyPictureRenderPolicy; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import Java.io.*; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class StudentCardExporter001 { public static void main(String[] args) { // 创建数据映射列表 List<Map<String, Object>> sectionList = new ArrayList<>(); HashMap<String, Object> sectionMap = new HashMap<>(); sectionMap.put("zhenghao", "AS011"); sectionMap.put("chexing", "C2"); sectionMap.put("username", "杨无敌"); sectionMap.put("sex", "男"); sectionMap.put("birthday", "1983-12-06"); sectionMap.put("deptname", "北京XXXXXXX"); sectionMap.put("date", "2025-12-09"); sectionMap.put("localPicture", Pictures.ofLocal( "D:\\xiazai\\1212.jpg").size(45, 65).create()); sectionList.add(sectionMap); // 这里可以设置多条数据 /*sectionMap.put("zhenghao", "AS011"); sectionMap.put("chexing", "C2"); sectionMap.put("username", "光头强"); sectionMap.put("sex", "男"); sectionMap.put("birthday", "1983-12-06"); sectionMap.put("deptname", "北京XXXXXXX"); sectionMap.put("date", "2025-12-09"); sectionMap.put("localPicture编程", Pictures.ofLocal( "D:\\xiazai\\1212.jpg").size(45, 65).create()); sectionList.add(sectionMap);*/ HashMap<String, Object> paramMap = new HashMap<>(); paramMap.put("sectionName", sectionList); ArrayList<Object> titleList = new ArrayList<>(); // 创建最终的数据映射 for (int i = 0; i <rkacoieDvc; 2; i++) { HashMap<String, Object> titleMap = new HashMap<>(); titleMap.put("oneTitle", " 1、驾驶车辆必须携带此证,以备检查。"); titleMap.put("tweTitle", " 2、持证人必须遵守本公司车辆管理规定及《中华\n" + " 人民共和国道路交通安全法》。"); titleMap.put("threeTitle", " 3、遗失此证必须及时报告发证单位。"); titleMap.put("fourTitle", " 4、此证不得伪造、涂改,不得转借他人;一经发\n" + " 现,立即取消其本人准驾资格并收回其此证。\n"); titleList.add(titleMap); } paramMap.put("attention", titleList); // 加载模板文件 PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(); try { org.springframework.core.io.Resource[] resources = resolver.getResources("classpath:excelTemplate/model1.docx"); if (resources.length == 0) { throw new IOException("Template file not found."); } InputStream inputStream = resources[0].getInputStream(); ConfigureBuilder builder = Configure.builder(); builder.addPlugin('%', new MyPictureRenderPolicy()); // 编译并渲染模板 XWPFTemplate template = XWPFTemplate.compile(inputStream, builder.build()).render(paramMap); // XWPFTemplate compile = XWPFTemplate.compile(inputStream, builder.build()).render(paramMap); // 输出生成的文档 try (FileOutputStream out = new FileOutputStream("D:\\xiazai\\1209.docx")) { template.write(out); } } catch (IOException e) { e.printStackTrace(); } } }
自定义MyPictureRenderPolicy
package com.example.controller; import com.deepoove.poi.data.PictureRenderData; import com.deepoove.poi.data.PictureType; import com.deepoove.poi.data.Pictures; import com.deepoove.poi.data.style.PictureStyle; import com.deepoove.poi.exception.RenderException; import com.deepoove.poi.policy.AbstractRenderPolicy; import com.deepoove.poi.render.RenderContext; import com.deepoove.poi.util.BufferedImageUtils; import com.deepoove.poi.util.SVGConvertor; import cjavascriptom.deepoove.poi.util.UnitUtils; import com.deepoove.poi.xwpf.BodyContainer; import com.deepoove.poi.xwpf.BodyContainerFactory; import com.deepoove.poi.xwpf.WidthScalePattern; import com.deepoove.poi.xwpf.XWPFRunWrapper; import com.example.demo.ExportUtil; import org.apache.poi.util.Units; import org.apache.poi.xwpf.usermodel.IBodyElement; import org.apache.poi.xwpf.usermodel.ParagraphAlignment; import org.apache.poi.xwpf.usermodel.XWPFParagraph; import org.apache.poi.xwpf.usermodel.XWPFRun; import org.openxmlformats.schemas.drawingml.x2006.main.CTGraphicalObject; import org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor; import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTDrawing; import java.awt.image.BufferedImage; import java.io.ByteArrayInputStream; import java.io.InputStream; import java.util.function.Supplier; public class MyPictureRenderPolicy extends AbstractRenderPolicy<Object> { @Override protected boolean validate(Object data) { if (null == data) { return false; } else if (data instanceof PictureRenderData) { return null != ((PictureRenderData) data).getPictureSupplier(); } else { return true; } } @Override public void doRender(RenderContext<Object> context) throws Exception { MyPictureRenderPolicy.Helper.renderPicture(context.getRun(), wrapper(context.getData())); } @Override protected void afterRender(RenderContext<Object> context) { this.clearPlaceholder(context, false); } @Override protected void reThrowException(RenderContext<Object> context, Exception e) { this.logger.info("Render picture " + context.getEleTemplate() + " error: {}", e.getMessage()); String alt = ""; if (context.getData() instanceof PictureRenderData) { alt = ((PictureRenderData) context.getData()).getAltMeta(); } context.getRun().setText(alt, 0); } private static PictureRenderData wrapper(Object object) { return object instanceof PictureRenderData ? (PictureRenderData) object : Pictures.of(object.toString()).fitSize().create(); } public static class Helper { public static void renderPicture(XWPFRun run, PictureRenderData picture) throws Exception { Supplier<byte[]> supplier = picture.getPictureSupplier(); byte[] imageBytes = (byte[]) supplier.get(); if (null == imageBytes) { throw new IllegalStateException("Can't read picture byte arrays!"); } else { PictureType pictureType = picture.getPictureType(); if (null == pictureType) { pictureType = PictureType.suggestFileType(imageBytes); } if (null == pictureType) { throw new RenderException("PictureRenderData must set picture type!"); } else { PictureStyle style = picture.getPictureStyle(); if (null == style) { style = new PictureStyle(); } int width = style.getWidth(); int height = style.getHeight(); if (pictureType == PictureType.SVG) { imageBytes = SVGConvertor.toPng(imageBytes, (float) width, (float) height); pictureType = PictureType.PNG; } if (!isSetSize(style)) { BufferedImage original = BufferedImageUtils.readBufferedImage(imageBytes); width = original.getWidth(); height = original.getHeight(); if (style.getScalePattern() == WidthScalePattern.FIT) { BodyContainer bodyContainer = BodyContainerFactory.getBodyContainer(((IBodyElement) run.getParent()).getBody()); int pageWidth = UnitUtils.twips2Pixel(bodyContainer.elementPageWidth((IBodyElement) run.getParent())); if (width > pageWidth) { double ratio = (double) pageWidth / (double) width; width = pageWidth; height = (int) ((double) height * ratio); } } } InputStream stream = new ByteArrayInputStream(imageBytes); Throwable var25 = null; try { PictureStyle.PictureAlign align = style.getAlign(); if (null != align && run.getParent() instanceof XWPFParagraph) { ((XWPFParagraph) run.getParent()).setAlignment(ParagraphAlignment.valueOf(align.ordinal() + 1)); } XWPFRunWrapper wrapper = new XWPFRunWrapper(run, false); wrapper.addPicture(stream, pictureType.type(), "Generated", Units.pixelToEMU(width), Units.pixelToEMU(height)); CTDrawing drawing = run.getCTR().getDrawingArray(0); CTGraphicalObject graphicalobject = drawing.getInlineArray(0).getGraphic(); //拿到新插入的图片替换添加CTAnchor 设置浮动属性 删除inline属性 CTAnchor anchor = ExportUtil.getAnchorWithGraphic(graphicalobject, "Generated", Units.toEMU(width), Units.toEMU(height),//图片大小 Units.toEMU(180), Units.toEMU(-60), false);//相对当前段落位置 需要计算段落已有内容的左偏移 编程客栈 drawing.setAnchorArray(new CTAnchor[]{anchor});//添加浮动属性 drawing.removeInline(0);//删除行内属性 } catch (Throwable var20) { var25 = var20; throw var20; } finally { if (stream != null) { if (var25 != null) { try { javascriptstream.close(); } catch (Throwable var19) { var25.addSuppressed(var19); } } else { stream.close(); } } } } } } } private static boolean isSetSize(PictureStyle style) { return (style.getWidth() != 0 || style.getHeight() != 0) && style.getScalePattern() == WidthScalePattern.NONE; } }
图片处理
package com.example.demo; import org.apache.xmlbeans.XmlException; import org.openxmlformats.schemas.drawingml.x2006.main.CTGraphicalObject; import org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor; import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTDrawing; import java.math.BigInteger; public class ExportUtil { /** * @param ctGraphicalObject 图片数据 * @param deskFileName 图片描述 * @param width 宽 * @param height 高 * @param leftOffset 水平偏移 left * @param topOffset 垂直偏移 top * @param behind 文字上方,文字下方 * @return * @throws Exception */ public static CTAnchor getAnchorWithGraphic(CTGraphicalObject ctGraphicalObject, String deskFileName, int width, int height, int leftOffset, int topOffset, boolean behind) { String anchorXML = "<wp:anchor xmlns:wp=\"http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing\" " + "simplePos=\"0\" relativeHeight=\"0\" behindDoc=\"" + ((behind) ? 1 : 0) + "\" locked=\"0\" layoutInCell=\"1\" allowOverlap=\"1\">" + "<wp:simplePos x=\"0\" y=\"0\"/>" + "<wp:positionH relativeFrom=\"character\">" + "<wp:posOffset>" + leftOffset + "</wp:posOffset>" + "</wp:positionH>" + "<wp:positionV relativeFrom=\"paragraph\">" + "<wp:posOffset>" + topOffset + "</wp:posOffset>" + "</wp:positionV>" + "<wp:extent cx=\"" + width + "\" cy=\"" + height + "\"/>" + "<wp:effectExtent l=\"0\" t=\"0\" r=\"0\" b=\"0\"/>" + "<wp:wrapNone/>" + "<wp:docPr id=\"1\" name=\"Drawing 0\" descr=\"" + deskFileName + "\"/><wp:cNvGraphicFramePr/>" + "</wp:anchor>"; CTDrawing drawing = null; try { drawing = CTDrawing.Factory.parse(anchorXML); } catch (XmlException e) { e.printStackTrace(); } CTAnchor anchor = drawing.getAnchorArray(0); anchor.setGraphic(ctGraphicalObject); // 减少左偏移量以使图片更靠前 leftOffset = Math.max(0, leftOffset - 500); // 根据需要调整减去的值 anchor.getPositionH().setPosOffset(leftOffset); anchor.getPositionV().setPosOffset(topOffset); return anchor; } }
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