请注意，本文编写于 125 天前，最后修改于 121 天前，其中某些信息可能已经过时。
目录
简介
poi-tl（poi template language）是Word模板引擎，使用模板和数据创建很棒的Word文档。
简单使用
word模板编辑
新增一个word，填入下面的内容
word文字 {{name}} {{author}} {{link}} {{anchor}} 图片 {{@img}} 表格 {{#table1}} {{#table2}} {{#table3}} 列表 {{*list}} 区块对(隐藏) {{?sections1}} Test {{/sections1}} 区块对(对象) {{?person}} Hi {{name}}! {{/person}} 区块对(列表循环文字) {{?songs}} {{name}} {{/songs}} 区块对(列表循环图片) {{?coll1}} {{@collImg}} {{/coll1}} 区块对(列表循环表格) {{?coll2}} {{#collTable}} {{/coll2}} 区块对(列表循环2) {{?coll3}} {{#collTable1}} {{/coll3}} 拼接word {{+nested}}
后端代码
javaimport cn.hutool.core.collection.ListUtil;
import cn.hutool.core.map.MapUtil;
import com.deepoove.poi.XWPFTemplate;
import com.deepoove.poi.config.Configure;
import com.deepoove.poi.data.*;
import com.deepoove.poi.data.style.BorderStyle;
import com.deepoove.poi.policy.ListRenderPolicy;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class testExport {
public static void main(String[] args) throws IOException {
Configure config = Configure.builder().bind("coll1", new ListRenderPolicy()).build();
XWPFTemplate template = XWPFTemplate.compile("C:/Users/li823/Desktop/template.docx",config).render(
new HashMap<String, Object>(){{
put("name", "Sayi");
put("author", Texts.of("Sayi").color("000000").create());
put("link", Texts.of("website").link("http://deepoove.com").create());
put("anchor", Texts.of("anchortxt").anchor("appendix1").create());
put("img", Pictures.ofUrl("https://img-blog.csdnimg.cn/2021051521244130.jpg").size(300, 300).altMeta("获取图片失败").create());
put("table1", Tables.of(new String[][] {
new String[] { "序列号","检查项目", "故障数量" },
new String[] { "1","各部位", "100" },
new String[] { "2","车轮", "66" }
}).border(BorderStyle.DEFAULT).create());
RowRenderData row0 = Rows.of("姓名", "学历").textColor("FFFFFF")
.bgColor("4472C4").center().create();
RowRenderData row1 = Rows.create("李四", "博士");
put("table2", Tables.create(row0, row1));
// 合并第1行所有单元格的表格
RowRenderData row2 = Rows.of("列0", "列1", "列2").center().bgColor("4472C4").create();
RowRenderData row3 = Rows.create("没有数据", null, null);
MergeCellRule rule = MergeCellRule.builder().map(MergeCellRule.Grid.of(1, 0), MergeCellRule.Grid.of(1, 2)).build();
put("table3", Tables.of(row2, row3).mergeRule(rule).create());
put("list", Numberings.ofDecimal("Plug-in grammar",
"Supports word text, pictures, table...",
"Not just templates").create());
put("sections1",false);
Map<String,String> personMap=MapUtil.of("name","张三");
put("person",personMap);
List<Map<String,String>> songs=ListUtil.of(
MapUtil.of("name","断点"),
MapUtil.of("name","后来"));
put("songs",songs);
List<Map<String, Object>> coll1 = ListUtil.of(
MapUtil.of("collImg", Pictures.ofUrl("https://img-blog.csdnimg.cn/2021051521244130.jpg").size(300, 300).altMeta("获取图片失败").create())
, MapUtil.of("collImg", Pictures.ofUrl("https://img-blog.csdnimg.cn/2021051521244130.jpg").size(300, 300).altMeta("获取图片失败").create())
);
put("coll1", coll1);
List<Map<String, Object>> coll2 = ListUtil.of(
MapUtil.of("collTable", Tables.of(new String[][] {
new String[] { "序列号","检查项目", "故障数量" },
new String[] { "1","各部位", "100" },
new String[] { "2","车轮", "66" }
}).border(BorderStyle.DEFAULT).create()),
MapUtil.of("collTable", Tables.of(new String[][] {
new String[] { "序列号","检查项目", "故障数量" },
new String[] { "3","各部位", "77" },
new String[] { "4","车轮", "88" }
}).border(BorderStyle.DEFAULT).create())
);
put("coll2", coll2);
List<Map<String, Object>> coll3 = ListUtil.of(
MapUtil.of("collTable1", Tables.of(new String[][] {
new String[] { " "}
}).border(BorderStyle.DEFAULT).create()),
MapUtil.of("collTable1", Tables.of(new String[][] {
new String[] { "序列号","检查项目", "故障数量" },
new String[] { "3","各部位", "77" },
new String[] { "4","车轮", "88" }
}).border(BorderStyle.DEFAULT).create())
);
put("coll3", coll3);
// put("nested", Includes.ofLocal("C:/Users/li823/Desktop/output1.docx").create());
put("quoteImg", Pictures.ofUrl("https://seopic.699pic.com/photo/50059/8720.jpg_wh1200.jpg").create());
}});
template.writeAndClose(new FileOutputStream("C:/Users/li823/Desktop/output.docx"));
}
}
结合业务使用
模板样例
代码
java public void generateFileByPoitl2(Task task, String exportId) {
try {
List<AlgoFault> allAlgoFaults = iAlgoFaultService.lambdaQuery()
.eq(AlgoFault::getTaskSn, task.getId())
.eq(AlgoFault::getFaultStatus, 1)
.eq(AlgoFault::getCheckMode, 0)
.list();
LoopRowTableRenderPolicy policy = new LoopRowTableRenderPolicy();
Configure config = Configure.builder()
.bind("checks", policy).bind("errs", policy).build();
List<Table> tableColl = new ArrayList<>();
QueryWrapper<AlgoFault> queryWrapper = new QueryWrapper();
queryWrapper.select("part_name as partName", "COUNT(*) AS faultNum")
.eq("task_sn", task.getId())
.eq("check_mode",0)
.groupBy("part_name");
List<Map<String, Object>> checks = iAlgoFaultService.listMaps(queryWrapper);
Map<String, byte[]> imageCache = new ConcurrentHashMap<>();
if (CollUtil.isNotEmpty(allAlgoFaults)) {
ExecutorService executor = Executors.newFixedThreadPool(10);
CompletionService<Void> completionService = new ExecutorCompletionService<>(executor);
//检查项目列表Stream流
for (AlgoFault abn : allAlgoFaults) {
Callable<Void> callTask = () -> {
if (!imageCache.containsKey(abn.getFaultPosImg())) {
imageCache.put(abn.getFaultPosImg(), ImageUtil.getUrlImageBytes(abn.getFaultPosImg(), 500, 400));
}
if (!imageCache.containsKey(abn.getFaultRelImg())) {
imageCache.put(abn.getFaultRelImg(), ImageUtil.getUrlImageBytes(abn.getFaultRelImg(), 280, 230));
}
if (!imageCache.containsKey(abn.getFaultImg())) {
imageCache.put(abn.getFaultImg(), ImageUtil.getUrlImageBytes(abn.getFaultImg(), 280, 230));
}
return null;
};
completionService.submit(callTask);
}
// 等待所有任务完成
for (int i = 0; i < allAlgoFaults.size(); i++) {
try {
completionService.take().get();
} catch (Exception e) {
log.error(e.getMessage());
}
}
executor.shutdown();
Map<String, List<AlgoFault>> groupMap = allAlgoFaults.stream().collect(Collectors.groupingBy(AlgoFault::getFaultPosName));
groupMap.forEach((k, v) -> {
//构建外层循环
Table table = new Table();
table.setBigImg(Pictures.ofBytes(imageCache.get(v.get(0).getFaultPosImg())).center().size(500, 400).altMeta("获取图片失败，图片不存在！").create());
table.setBigImgName(v.get(0).getFaultPosName());
List<Child> childColl = new ArrayList<>();
//内层循环
for (AlgoFault f : v) {
Child c = new Child();
com.ditt.tiisCz.product.entity.common.poitl.Err err = new com.ditt.tiisCz.product.entity.common.poitl.Err();
err.setId(f.getFaultSn());
err.setCheckTime(DateUtil.format(f.getCheckTime(), "yyyy年MM月dd日 hh时mm分ss秒"));
err.setVehicleNo(f.getVehicleNo());
err.setTrainNo(f.getTrainNo());
err.setPartName(f.getPartName());
err.setPointName(f.getPointName());
err.setFaultTypeText(f.getFaultTypeText());
c.setErrs(ListUtil.of(err));
c.setRelImg(Pictures.ofBytes(imageCache.get(f.getFaultRelImg())).center().size(280, 230).altMeta("获取图片失败，图片不存在！").create());
c.setSmallImg(Pictures.ofBytes(imageCache.get(f.getFaultImg())).center().size(280, 230).altMeta("获取图片失败，图片不存在！").create());
childColl.add(c);
}
table.setChildColl(childColl);
tableColl.add(table);
});
}
XWPFTemplate template = XWPFTemplate.compile(this.getClass().getResourceAsStream("/word/template2.docx"), config).render(
new HashMap<String, Object>() {{
put("startTime", DateUtil.format(task.getStartTime(), "yyy-MM-dd HH:mm:ss"));
put("endTime", DateUtil.format(task.getEndTime(), "yyy-MM-dd HH:mm:ss"));
put("trainNo", task.getTrainNo());
put("taskId", task.getId());
if (CollUtil.isNotEmpty(checks)) {
put("checks", checks);
}
if (CollUtil.isNotEmpty(tableColl)) {
put("tableColl", tableColl);
}
}});
File tempFile = File.createTempFile(task.getId()+"_", ".docx");
try (OutputStream ops = new FileOutputStream(tempFile)) {
template.writeAndClose(ops);
singleExportMap.put(exportId, tempFile.getAbsolutePath());
} catch (IOException e) {
e.printStackTrace();
throw new SystemException(500, "导出文件出错," + e.getMessage());
} finally {
tempFile.deleteOnExit();
}
tableColl.clear();
template = null;
if (MapUtil.isNotEmpty(imageCache)) {
imageCache.clear();
}
} catch (Exception e) {
singleExportMap.put(exportId, "错误:" + e.getMessage());
}
}
ImageUtil.getUrlImageBytes
java public static byte[] getUrlImageBytes(String url, int width, int height) {
try {
// 直接从网络读取图片并调整大小
BufferedImage image = Thumbnails.of(new URL(url)).size(width, height).asBufferedImage();
try(ByteArrayOutputStream baos = new ByteArrayOutputStream()){
ImageIO.write(image, "jpg", baos);
return baos.toByteArray();
}
} catch (Exception e) {
log.error("获取图片失败: " + e.getMessage());
}
return new byte[0];
}
本文作者:Weee
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