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目录
(1)导入依赖如上,注意只有高一点版本的poi-tl才有模板策略,即LoopRowTableRenderPolicy
3、使用easypoi按模板生成一个word(包含easypoi生成word的合并)
4、使用jxls 2.10.0 按模板生成excel(有条件还是使用新版好,生成excel合并格式也都完整,老版的合并单元格还是有问题需要自己调整)
最近项目遇到生成word,excel的问题,但由于jar包冲突,版本不符合要求等原因,小白使用了许多方法来完成目的,基本都是不断度娘,今天来汇总一下,代码注释中加了些个人的粗浅理解,望误喷。
先说一下,本文中,生成word描述了使用Apache poi,easypoi工具的方法,生成excel描述了使用Apache poi,easyexcel,jxls工具的方法,可选择观看
- <dependency>
- <groupId>org.apache.poi</groupId>
- <artifactId>poi</artifactId>
- <version>4.1.2</version>
- </dependency>
- <dependency>
- <groupId>org.apache.poi</groupId>
- <artifactId>poi-ooxml</artifactId>
- <version>4.1.2</version>
- </dependency>
- <dependency>
- <groupId>com.deepoove</groupId>
- <artifactId>poi-tl</artifactId>
- <version>1.10.0</version>
- </dependency>
- package cn.itcast.mp;
-
- import cn.itcast.mp.pojo.User;
- import org.apache.poi.xwpf.usermodel.*;
- import java.io.File;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.util.ArrayList;
- import java.util.List;
-
- public class WordUtil {
-
- public static void main(String[] args) throws IOException {//普通生成word文件及其中的word表格
- List<User> users = new ArrayList<>();//造点数据,此处创建了User对象,属性id,userName,password,name,age,mail
- users.add(new User(1L, "zhangsan", "99999", "张三", 25, "test1@itcast.cn"));
- users.add(new User(2L, "zhangsan1", "88888", "张三1", 20, "test1@itcast.cn1"));
- users.add(new User(3L, "zhangsan2", "77777", "张三2", 23, "test1@itcast.cn2"));
- users.add(new User(4L, "zhangsan3", "66666", "张三3", 24, "test1@itcast.cn3"));
- users.add(new User(5L, "zhangsan4", "55555", "张三4", 28, "test1@itcast.cn4"));
- users.add(new User(6L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- XWPFDocument doc = new XWPFDocument();//Apache poi的一个文档对象,暂理解为创建了一个虚拟的word文档
- XWPFParagraph p = doc.createParagraph();//在这个word里新建一个段落
- p.setAlignment(ParagraphAlignment.CENTER);//设置段落的对齐方式
- p.setBorderBottom(Borders.DOUBLE);//设置下边框
- p.setBorderTop(Borders.DOUBLE);//设置上边框
- p.setBorderRight(Borders.DOUBLE);//设置右边框
- p.setBorderLeft(Borders.DOUBLE);//设置左边框
- XWPFRun r = p.createRun();//创建段落文本,即段落里要放入的内容
- r.setText("创建段落文本里的内容,set相当于放值");//内容赋值
- r.setBold(true);//内容设置为粗体
- r.setColor("FF0000");//内容设置颜色;此处不带#
- p = doc.createParagraph();//再创建一个段落
- r= p.createRun();//第二个段落中的文本
- r.setText("这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!");
-
- // XWPFParagraph p1 = doc.createParagraph();//这三句与上三句效果相同
- // XWPFRun r1 = p1.createRun();
- // r1.setText("这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!这里是段落内容!");
-
- XWPFTable table = doc.createTable(users.size() + 1, 6);//创建一个表格,括号中(几行,几列)
- table.getRow(0).getCell(0).setText("id");//设置表头
- table.getRow(0).getCell(1).setText("userName");//getRow获取第几行,getCell获取第几列,setText单元格赋值
- table.getRow(0).getCell(2).setText("password");
- table.getRow(0).getCell(3).setText("name");
- table.getRow(0).getCell(4).setText("age");
- table.getRow(0).getCell(5).setText("mail");
- for (int i = 0; i < users.size(); i++) {//使用双层循环,并用以上单元格赋值方法,给单元格一个一个赋值
- for (int j = 0; j < 6; j++) {
- if (j == 0) {
- table.getRow(i+1).getCell(j).setText(users.get(i).getId().toString());
- } else if (j == 1) {
- table.getRow(i + 1).getCell(j).setText(users.get(i).getUserName());
- } else if (j == 2) {
- table.getRow(i + 1).getCell(j).setText(users.get(i).getPassword());
- } else if (j == 3) {
- table.getRow(i + 1).getCell(j).setText(users.get(i).getName());
- } else if (j == 4) {
- table.getRow(i+1).getCell(j).setText(users.get(i).getAge().toString());
- } else if (j == 5) {
- table.getRow(i + 1).getCell(j).setText(users.get(i).getMail());
- }
- }
- }
- table.setTableAlignment(TableRowAlign.CENTER);//表格居中
- String savePath = "D:\\poi";//生成word后要保存到的位置
- String fileName = "PoiWord";//生成的word的名字
- createDoc(doc, savePath, fileName);//调用下面poi生成word的方法
- }
-
- public static void createDoc(XWPFDocument document, String savePath, String fileName) throws IOException {
- File file = new File(savePath);//按照路径先生成一个文件,用于判断是否存在目录
- if (!file.exists()) {
- // 判断生成目录是否存在,不存在时创建目录。
- file.mkdirs();
- }
- // 保存
- fileName += ".docx";//后缀
- FileOutputStream out = new FileOutputStream(new File(savePath + File.separator + fileName));//生成word文件以输出流的方式,输出用于文件的写入
- document.write(out);//poi的write方法,把虚拟word中的数据写入刚创建的word文件里
- // 关闭资源
- out.flush();
- out.close();
- document.close();
- }
- }
- import cn.itcast.mp.pojo.User;
- import com.deepoove.poi.XWPFTemplate;
- import com.deepoove.poi.config.Configure;
- import com.deepoove.poi.data.TextRenderData;
- import com.deepoove.poi.data.Texts;
- import com.deepoove.poi.data.style.Style;
- import com.deepoove.poi.plugin.table.LoopRowTableRenderPolicy;
-
- import java.io.File;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
-
- public class WordTest {//模板生成word表格
- public static void main(String[] args) {
- try {
- List<User> users = new ArrayList<>();//造点数据
- users.add(new User(1L, "zhangsan", "99999", "张三", 25, "test1@itcast.cn"));
- users.add(new User(2L, "zhangsan1", "88888", "张三1", 20, "test1@itcast.cn1"));
- users.add(new User(3L, "zhangsan2", "77777", "张三2", 23, "test1@itcast.cn2"));
- users.add(new User(4L, "zhangsan3", "66666", "张三3", 24, "test1@itcast.cn3"));
- users.add(new User(5L, "zhangsan4", "55555", "张三4", 28, "test1@itcast.cn4"));
- users.add(new User(6L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- List<Map<String,Object>> empList = new ArrayList<>();//必须是List<Map>型几个的数据才可以显示出来
- for (int i = 0; i < users.size(); i++) {
- Map<String, Object> map = new HashMap<>();
- map.put("id",users.get(i).getId());
- map.put("userName",users.get(i).getUserName());
- map.put("password",users.get(i).getPassword());
- map.put("name",users.get(i).getName());
- map.put("age",users.get(i).getAge());
- map.put("mail",users.get(i).getMail());
- empList.add(map);
- }
- Map<String,Object> empList1 = new HashMap<>();
- empList1.put("empList",empList);
- empList1.put("empList1",empList);
- empList1.put("title",new TextRenderData("F04B09","POI创建的Word段落文本"));
- String content = "这是测试!这是测试!这是测试!这是测试!这是测试!这是测试!这是测试!这是测试!这是测试!";
- Style style = Style.builder().buildColor("18282B").buildUnderlineColor("F04B09").build();//设置样式
- empList1.put("content", Texts.of(content).style(style).create());//加入样式
- // 模板文件地址
- String filePath = "D:\\poi\\WordTem.docx";
- // 读取模板后保存生成word的地址
- String outPath = "D:\\poi\\wordTest.docx";
- // 为表格的显示绑定循环政策
- LoopRowTableRenderPolicy policy = new LoopRowTableRenderPolicy();
- // 将empList设置为行循环绑定的数据源的key,即key是empList的value会在模板中的{{empList}}处进行解析,可查看模板
- Configure configure = Configure.builder().bind("empList", policy).bind("empList1",policy).build();
- // 读取模板、数据并渲染,render中放入整体的模板map
- XWPFTemplate template = XWPFTemplate.compile(new File(filePath), configure).render(empList1);
- // 文件是否已存在,则删除
- File file = new File(outPath);
- if (file.exists()){
- file.delete();
- }
- // 生成word保存在指定目录(把生成好的模板word数据写入刚生成的文件中)
- template.writeToFile(outPath);
- template.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- }
{{xxx}}表示普通占位符
Configure configure = Configure.builder().bind("empList", policy).bind("empList1",policy).build();
模板表格中id项{{xxx}}相当于一个标识,起名字就为以上代码bind中“ ”中的内容,想要几个表就bind几次
表格中的各个字段用 [ ]
- <dependency>
- <groupId>cn.afterturn</groupId>
- <artifactId>easypoi-base</artifactId>
- <version>4.3.0</version>
- </dependency>
- <dependency>
- <groupId>cn.afterturn</groupId>
- <artifactId>easypoi-web</artifactId>
- <version>4.3.0</version>
- </dependency>
- <dependency>
- <groupId>cn.afterturn</groupId>
- <artifactId>easypoi-annotation</artifactId>
- <version>4.3.0</version>
- </dependency>
- <!--注意:word中要使用循环等标签必须单独导入以下依赖-->
- <dependency>
- <groupId>org.apache.poi</groupId>
- <artifactId>ooxml-schemas</artifactId>
- <version>1.4</version>
- </dependency>
{{xxx}}普通占位符
{{$fe:遍历集合的键名}} t就用t就行 此处注意循环标签括起了一整行
还有,如果出现表格与数据堆在一起的情况,不行就多空几行,如图
- import cn.afterturn.easypoi.word.WordExportUtil;
- import cn.itcast.mp.pojo.User;
- import org.apache.poi.xwpf.usermodel.Document;
- import org.apache.poi.xwpf.usermodel.XWPFDocument;
-
- import java.io.File;
- import java.io.FileOutputStream;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
-
- import org.apache.poi.xwpf.usermodel.XWPFPictureData;
- import org.apache.xmlbeans.XmlOptions;
- import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBody;
- import org.springframework.util.CollectionUtils;
-
- public class CreateWordEasy {
- public static void main(String[] args) {
- List<User> users = new ArrayList<>();//造点数据
- users.add(new User(1L, "zhangsan", "99999", "张三", 25, "test1@itcast.cn"));
- users.add(new User(2L, "zhangsan1", "88888", "张三1", 20, "test1@itcast.cn1"));
- users.add(new User(3L, "zhangsan2", "77777", "张三2", 23, "test1@itcast.cn2"));
- users.add(new User(4L, "zhangsan3", "66666", "张三3", 24, "test1@itcast.cn3"));
- users.add(new User(5L, "zhangsan4", "55555", "张三4", 28, "test1@itcast.cn4"));
- users.add(new User(7L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(8L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(7L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(10L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(11L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(12L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(13L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(14L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- users.add(new User(15L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- List<Map<String,Object>> empList = new ArrayList<>();//必须是List<Map>型几个的数据才可以显示出来
- for (int i = 0; i < users.size(); i++) {
- Map<String, Object> map = new HashMap<>();
- map.put("id",users.get(i).getId());
- map.put("userName",users.get(i).getUserName());
- map.put("password",users.get(i).getPassword());
- map.put("name",users.get(i).getName());
- map.put("age",users.get(i).getAge());
- map.put("mail",users.get(i).getMail());
- empList.add(map);
- }
- Map<String,Object> empList1 = new HashMap<>();
- empList1.put("empList",empList);//放入word表格中需要遍历的集合数据,键名“empList”
- String content = "测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!测试!!!\n ";
- empList1.put("content",content);
- // 模板文件地址
- String filePath = "D:\\poi\\wordEasyTem.docx";
- // 读取模板后保存生成word的地址
- String outPath = "D:\\poi\\easyWordTest.docx";
- try {
- XWPFDocument doc = WordExportUtil.exportWord07(filePath,empList1);//easypoi自带类与方法,(模板地址,模板所需map)
- XWPFDocument doc1 = WordExportUtil.exportWord07(filePath,empList1);//合成所需的另一个虚拟word
- List<XWPFDocument> wordList = new ArrayList<>();//需合并时创建的集合
- wordList.add(doc);//把所有虚拟word加入集合,以便调用合并方法
- wordList.add(doc1);
- XWPFDocument xwpfDocument = mergeWord(wordList);//调用word合并方法
- File file = new File(outPath);
- if (file.exists()) {
- file.delete();
- }
- FileOutputStream out = new FileOutputStream(file);
- xwpfDocument.write(out);//将生成的模板数据写入word文件,如果不用合并此处直接doc.即可
- out.flush();
- out.close();
- xwpfDocument.close();//如果不用合并此处直接doc.即可
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
word合并工具方法
- /**
- * word文件合并
- * @param wordList
- * @return
- * @throws Exception
- */
- public static XWPFDocument mergeWord(List<XWPFDocument> wordList) throws Exception{
- if (CollectionUtils.isEmpty(wordList)) {
- throw new RuntimeException("待合并的word文档list为空");
- }
- XWPFDocument doc = wordList.get(0);
- int size = wordList.size();
- if (size > 1) {
- doc.createParagraph().setPageBreak(true);
- for (int i = 1; i < size; i++) {
- // 从第二个word开始合并
- XWPFDocument nextPageDoc = wordList.get(i);
- // 最后一页不需要设置分页符
- if (i != (size-1)) {
- nextPageDoc.createParagraph().setPageBreak(true);
- }
- appendBody(doc, nextPageDoc);
- }
- }
- return doc;
- }
-
- private static void appendBody(XWPFDocument src, XWPFDocument append) throws Exception {
- CTBody src1Body = src.getDocument().getBody();
- CTBody src2Body = append.getDocument().getBody();
- List<XWPFPictureData> allPictures = append.getAllPictures();
- // 记录图片合并前及合并后的ID
- Map<String,String> map = new HashMap<>();
- for (XWPFPictureData picture : allPictures) {
- String before = append.getRelationId(picture);
- //将原文档中的图片加入到目标文档中
- String after = src.addPictureData(picture.getData(), Document.PICTURE_TYPE_PNG);
- map.put(before, after);
- }
- appendBody(src1Body, src2Body,map);
-
- }
-
- private static void appendBody(CTBody src, CTBody append,Map<String,String> map) throws Exception {
- XmlOptions optionsOuter = new XmlOptions();
- optionsOuter.setSaveOuter();
- String appendString = append.xmlText(optionsOuter);
- String srcString = src.xmlText();
- String prefix = srcString.substring(0,srcString.indexOf(">")+1);
- String mainPart = srcString.substring(srcString.indexOf(">")+1,srcString.lastIndexOf("<"));
- String sufix = srcString.substring( srcString.lastIndexOf("<") );
- String addPart = appendString.substring(appendString.indexOf(">") + 1, appendString.lastIndexOf("<"));
- if (map != null && !map.isEmpty()) {
- //对xml字符串中图片ID进行替换
- for (Map.Entry<String, String> set : map.entrySet()) {
- addPart = addPart.replace(set.getKey(), set.getValue());
- }
- }
- //将两个文档的xml内容进行拼接
- CTBody makeBody = CTBody.Factory.parse(prefix+mainPart+addPart+sufix);
- src.set(makeBody);
- }
注意:方法来源于网络,该合并方法有时会使生成的word报数据恢复,我之后多合并了几个就没有出现这种情况
- <dependency>
- <groupId>org.apache.poi</groupId>
- <artifactId>poi</artifactId>
- <version>4.1.2</version>
- </dependency>
- <dependency>
- <groupId>org.apache.poi</groupId>
- <artifactId>poi-ooxml</artifactId>
- <version>4.1.2</version>
- </dependency>
- <dependency>
- <groupId>com.deepoove</groupId>
- <artifactId>poi-tl</artifactId>
- <version>1.10.0</version>
- </dependency>
- import cn.itcast.mp.pojo.User;
- import org.apache.poi.ss.usermodel.*;
- import org.apache.poi.ss.util.CellRangeAddress;
- import org.apache.poi.xssf.usermodel.XSSFSheet;
- import org.apache.poi.xssf.usermodel.XSSFWorkbook;
-
- import java.io.File;
- import java.io.FileNotFoundException;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.text.SimpleDateFormat;
- import java.util.ArrayList;
- import java.util.Date;
- import java.util.List;
-
- public static void createExcel(){
- List<User> users = new ArrayList<>();//先造点数据
- users.add(new User(1L, "zhangsan", "99999", "张三", 25, "test1@itcast.cn"));
- users.add(new User(2L, "zhangsan1", "88888", "张三1", 20, "test1@itcast.cn1"));
- users.add(new User(3L, "zhangsan2", "77777", "张三2", 23, "test1@itcast.cn2"));
- users.add(new User(4L, "zhangsan3", "66666", "张三3", 24, "test1@itcast.cn3"));
- users.add(new User(5L, "zhangsan4", "55555", "张三4", 28, "test1@itcast.cn4"));
- users.add(new User(6L, "zhangsan5", "44444", "张三5", 30, "test1@itcast.cn5"));
- XSSFWorkbook workbook = new XSSFWorkbook();//Apache poi创建excel对象,相当于创建一个虚拟的excel
- XSSFSheet sheet = workbook.createSheet("sheet1");//创建一个sheet页,括号内为sheet页名字
- sheet.addMergedRegion(new CellRangeAddress(0,0,5,6));//合并单元格 范围:(firstRow,lastRow,firstCol,lastCol),注意行列计算均从0开始
- CellStyle cellStyle = workbook.createCellStyle();//设置单元格样式
- cellStyle.setBorderBottom(BorderStyle.THIN);//设置单元格样式为黑色实线
- cellStyle.setBorderLeft(BorderStyle.THIN);
- cellStyle.setBorderRight(BorderStyle.THIN);
- cellStyle.setBorderTop(BorderStyle.THIN);
-
- Font font = workbook.createFont();//设置字体样式
- font.setFontName("宋体");//字体样式
- font.setBold(true);//字体加粗
- font.setFontHeightInPoints((short) 12);
- cellStyle.setFont(font);
-
- Row row = sheet.createRow(0);//设置表头,获取第一行
- row.createCell(0).setCellValue("id");//createRow获取行,createCell获取列,setCellValue,放值
- row.createCell(1).setCellValue("userName");
- row.createCell(2).setCellValue("password");
- row.createCell(3).setCellValue("name");
- row.createCell(4).setCellValue("age");
- row.createCell(5).setCellValue("mail");
- for (int i = 0; i < users.size(); i++) {
- Row row1 = sheet.createRow(i+1);
- row1.createCell(0).setCellValue(users.get(i).getId());
- row1.createCell(1).setCellValue(users.get(i).getUserName());
- row1.createCell(2).setCellValue(users.get(i).getPassword());
- row1.createCell(3).setCellValue(users.get(i).getName());
- row1.createCell(4).setCellValue(users.get(i).getAge());
- row1.createCell(5).setCellValue(users.get(i).getMail());
- sheet.addMergedRegion(new CellRangeAddress(i+1,i+1,5,6));//合并数据中的单元格
- }
- String path = "D:\\poi\\excel\\";//生成文件
- //判断路径是否存在,否则生成
- File file = new File(path);
- if (!file.exists()){
- file.mkdirs();
- }
- String fileName = new SimpleDateFormat("yyyy年MM月dd日hhmmssSS").format(new Date() ) + "测试Excel"+".xlsx";
- try {
- FileOutputStream fileOutputStream = new FileOutputStream(path + fileName);
- workbook.write(fileOutputStream);//excel写进文件里
- fileOutputStream.close();
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- }
-
- }
- <dependency>
- <groupId>com.alibaba</groupId>
- <artifactId>easyexcel</artifactId>
- <version>3.0.5</version>
- </dependency>
- import com.alibaba.excel.EasyExcel;
- import com.alibaba.excel.ExcelWriter;
- import com.alibaba.excel.enums.WriteDirectionEnum;
- import com.alibaba.excel.write.metadata.WriteSheet;
- import com.alibaba.excel.write.metadata.fill.FillConfig;
- import com.alibaba.excel.write.metadata.fill.FillWrapper;
-
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
-
- public class CreateExcel01 {
- public static void main(String[] args) {
- List<Map<String,Object>> events = new ArrayList<>();
- for (int i = 0; i < 3; i++) {//造点数据
- Map<String,Object> map = new HashMap<>();
- map.put("index",i+1);
- map.put("sys","windows");
- map.put("content","测试!测试!测试!测试!测试!测试!测试!测试!");
- map.put("time","2022-9-5");
- events.add(map);
- }
- String filePath = "D:\\poi\\zhyw\\excelTest.xlsx";//生成Excel路径
- String templatePath = "D:\\poi\\zhyw\\weekTem.xlsx";//模板路径
- ExcelWriter excelWriter = EasyExcel.write(filePath).withTemplate(templatePath).build();//easyexcel创建一个虚拟的excel
- WriteSheet writeSheet = EasyExcel.writerSheet().build(); // 每次都会重新生成新的一行,而不是使用下面的空行
- FillConfig fillConfig = FillConfig.builder().direction(WriteDirectionEnum.VERTICAL).forceNewRow(Boolean.TRUE).build();//占位符替换
- Map<String, Object> map = new HashMap<>();// 填充数据
- map.put("name", "张三");
- excelWriter.fill(map, writeSheet);
- excelWriter.fill(new FillWrapper("data01", events), fillConfig, writeSheet);//要遍历的数据设置
- excelWriter.fill(new FillWrapper("data02", events), fillConfig, writeSheet);//同一个sheet页的不同表中要遍历的数据
- excelWriter.finish();// 关闭流
- }
- }
- <dependency>
- <groupId>net.sf.jxls</groupId>
- <artifactId>jxls-core</artifactId>
- <version>1.0.6</version>
- </dependency>
- <dependency>
- <groupId>org.apache.poi</groupId>
- <artifactId>poi</artifactId>
- <!-- <version>4.1.0</version>此处用4.1.0我会报冲突-->
- <version>3.16</version>
- </dependency>
- <dependency>
- <groupId>org.apache.poi</groupId>
- <artifactId>poi-ooxml</artifactId>
- <!-- <version>4.1.0</version>-->
- <version>3.16</version>
- </dependency>
本来循环显示数据表格在设置模板时需要加<foreach>标签,但是我在之前带有合并的表格中加了<foreach>会报无法合并的错误,试了一下,不使用<foreach>也可以循环生成数据
- import com.jxdinfo.mobile.report.service.IReportService;
- import net.sf.jxls.transformer.XLSTransformer;
- import org.apache.poi.ss.usermodel.Workbook;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.core.io.ClassPathResource;
- import org.springframework.core.io.Resource;
- import org.springframework.stereotype.Service;
-
- import java.io.*;
- import java.time.LocalDateTime;
- import java.time.format.DateTimeFormatter;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
-
- @Service
- public class CreateRunInfoWeekExcel {
- @Autowired
- private IReportService reportService;
-
- public void createRunInfoWeekExcel() {//我所用的数据处理
- List<Map<String, Object>> weekRunInfo = reportService.getWeekRunInfo();
- DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy年MM月dd日");
- String currentTime = LocalDateTime.now().format(dateTimeFormatter);
- Map<String,Object> map = new HashMap<>();
- for (int i = 0; i < weekRunInfo.size(); i++) {
- String sysName = (String) weekRunInfo.get(i).get("sysName");
- map = weekRunInfo.get(i);
- String fileName = currentTime + sysName + "周运行情况";
- createWeekExcelUtil(fileName,map);//调用生成excel方法
- }
- }
-
- public void createWeekExcelUtil(String fileName,Map<String,Object> map) {//生成excel主要在这里
- try {
- String filePath = "D:\\poi\\zhyw\\Test01\\"+fileName+".xlsx";// 生成Excel路径
- Resource resource = new ClassPathResource("templates/RunInfoWeek01.xlsx");//获取resource文件下的模板路径
- String templatePath = resource.getFile().getPath();
- //String templatePath = "D:\\poi\\zhyw\\Test01\\RunInfoWeek01.xlsx";//本地模板路径
- File file = new File(templatePath);
- InputStream inputStream = new FileInputStream(file);//使用输入流读取模板文件
- XLSTransformer xlsTransformer = new XLSTransformer();//创建jxls的XLSTransformer对象
- Workbook workbook = xlsTransformer.transformXLS(inputStream,map);//生成一个按模板生成的虚拟excel,(模板输入流,占位替换所需map)
- OutputStream os = new BufferedOutputStream(new FileOutputStream(filePath));//输出流输出一个备用excel
- workbook.write(os);//把之前生成好的模板文件写入流输出的备用excel
- inputStream.close();//关闭资源
- os.flush();
- os.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- }
- <dependency>
- <groupId>org.jxls</groupId>
- <artifactId>jxls</artifactId>
- <version>2.10.0</version>
- </dependency>
- <dependency>
- <groupId>org.jxls</groupId>
- <artifactId>jxls-poi</artifactId>
- <version>2.10.0</version>
- </dependency>
红色三角就是在excel里加批注,右键单元格就有
普通占位符 ${xxx}
循环标签 jx:each(items="循环数据的键" var="遍历时用的对象" lastCell="循环标签这一行 最后一列最后一行")
在最开始标题头那里添加注释 jx:area(lastCell="整个表格的范围")
对于lastCell均只考虑模板先有的行列,并不考虑循环有数据后的行列
- import org.jxls.common.Context;
- import org.jxls.transform.poi.PoiTransformer;
- import org.jxls.util.JxlsHelper;
-
- import java.io.*;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
-
- public class JxlsCreateExcel {
- public static void main(String[] args) {
- List<Map<String, Object>> events = new ArrayList<>();
- for (int i = 0; i < 3; i++) {//造点数据
- Map<String, Object> map = new HashMap<>();
- map.put("index", i + 1);
- map.put("sys", "windows");
- map.put("content", "测试!测试!测试!测试!测试!测试!测试!测试!");
- map.put("time", "2022-9-5");
- events.add(map);
- }
- String filePath = "D:\\poi\\zhyw\\jxlsExcelTest.xlsx";//生成Excel路径
- String templatePath = "D:\\poi\\zhyw\\weekTem04.xlsx";//模板路径
- File file = new File(templatePath);
- try (InputStream is = new FileInputStream(file)) {
- try (OutputStream os = new FileOutputStream(filePath)) {
- Context context = new Context();//jxls 2.10.0自带的类很像一个map
- context.putVar("name","李四");
- context.putVar("data01",events);
- context.putVar("data02",events);
- context.putVar("data03",events);
- context.putVar("data04",events);
- JxlsHelper.getInstance().processTemplate(is, os, context);//jxls 2.10.0自带的辅助类(模板流,生成文件流,占位符map)
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- }
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