根据word模板生成word、转换成pdf、打成war包
一、word模板
二、替换模板里的内容（创建一个WordUtils工具类）
import org.apache.poi.xwpf.usermodel.*;
import java.io.*;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class WordUtils {
/**
* 替换表格里面的变量
* @param doc 要替换的文档
* @param params 参数
*/
public static void replaceInTable(XWPFDocument doc, Map<String, Object> params) {
Iterator<XWPFTable> iterator = doc.getTablesIterator();
XWPFTable table;
List<XWPFTableRow> rows;
List<XWPFTableCell> cells;
List<XWPFParagraph> paragraphs = doc.getParagraphs();
for (XWPFParagraph paragraph : paragraphs) {
List<XWPFRun> runs = paragraph.getRuns();
for (XWPFRun run : runs) {
run.setText(changeValue(run.toString(), params),0);
}
}
while (iterator.hasNext()) {
table = iterator.next();
rows = table.getRows();
// 删除行
//table.removeRow(3);
for (XWPFTableRow row : rows) {
cells = row.getTableCells();
for (XWPFTableCell cell : cells) {
List<XWPFParagraph> paras = cell.getParagraphs();
for (XWPFParagraph paragraph : paras) {
List<XWPFRun> runs = paragraph.getRuns();
for (XWPFRun run : runs) {
run.setText(changeValue(run.toString(), params),0);
}
}
}
}
mergeCellsVertically(table, 0, 1,2);
mergeCellsVertically(table, 3, 1,2);
}
}
/**
* 匹配传入信息集合与模板
* @param value 模板需要替换的区域
* @param textMap 传入信息集合
* @return 模板需要替换区域信息集合对应值
*/
private static String changeValue(String value, Map<String, Object> textMap){
Set<Map.Entry<String, Object>> textSets = textMap.entrySet();
for (Map.Entry<String, Object> textSet : textSets) {
//匹配模板与替换值 格式${key}
String key = "${"+textSet.getKey()+"}";
if(value.indexOf(key)!= -1){
value = textSet.getValue().toString();
}
}
return value;
}
/**
* 关闭输入流
* @param is
*/
public static void close(InputStream is) {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 关闭输出流
* @param os
*/
public static void close(OutputStream os) {
if (os != null) {
try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
三、实现类 reportService
/** convertPath路径D:/template/convert
Map<String, Object> params 例：params.put("name", "张三")； // 与模板里设置的变量一致
**/
private ResponseEntity<byte[]> templateWrite(String filePath, Map<String, Object> params, int n) throws IOException {
String convertPath = path + File.separator + "template" + File.separator + "convert";
File dir = new File(convertPath);
if (!dir.exists()) {
dir.mkdir();
}
String docxFilePath = convertPath + File.separator + "tb" + n + ".docx";
String pdfFilePath = convertPath + File.separator + "pdf" + File.separator + "tb" + n + ".pdf";
InputStream is = new FileInputStream(filePath);
XWPFDocument doc = new XWPFDocument(is);
// 替换表格里面的变量
WordUtils.replaceInTable(doc, params);
OutputStream os = new FileOutputStream(docxFilePath);
doc.write(os);
WordUtils.close(os);
WordUtils.close(is);
os.flush();
os.close();
return this.convertToPdf(docxFilePath, pdfFilePath);
}
private ResponseEntity<byte[]> convertToPdf(String docxFilePath, String pdfFilePath) throws IOException {
// word转pdf
String targetPath = path + File.separator + "template" + File.separator + "convert" + File.separator + "pdf";
LibreofficeUtils.wordConverterToPdf(docxFilePath, targetPath, osName);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_PDF);
headers.setContentDispositionFormData("attachment", "tb.pdf");
//输入docx
//headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
//headers.setContentDispositionFormData("attachment", "tb.docx");
ResponseEntity<byte[]> returnFile = new ResponseEntity<byte[]>(FileUtils.readFileToByteArray(new File(pdfFilePath)), headers, HttpStatus.OK);
deleteFile(new File(path + File.separator + "template" + File.separator + "convert" ));
return returnFile;
}
四、controller类
@RequestMapping(value = "/download-pdf", method = RequestMethod.GET)
public ResponseEntity<byte[]> downloadPDF(HttpServletResponse response, ExamReportDTO examReport) throws Exception {
return reportService.exportPDF(response, examReport);
}
五、pom.xml （第一次word转Pdf用的是poi，4.1.2版本太高，所以转换报错，需要降低版本）
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<!--<version>4.1.2</version>-->
<version>3.12</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<!--<version>4.1.2</version>-->
<version>3.12</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<!-- <version>4.1.2</version>-->
<version>3.12</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
<!--<version>4.1.2</version>-->
<version>3.12</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.xmlbeans/xmlbeans -->
<dependency>
<groupId>org.apache.xmlbeans</groupId>
<artifactId>xmlbeans</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>fr.opensagres.xdocreport</groupId>
<artifactId>org.apache.poi.xwpf.converter.pdf</artifactId>
<version>1.0.6</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.11</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
<dependency>
<groupId>fr.opensagres.xdocreport</groupId>
<artifactId>org.odftoolkit.odfdom.converter.pdf</artifactId>
<version>1.0.6</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
六、最终实现此需求经历的过程
1、先使用的itext，根据pdf模板，填写区域值，直接生成pdf文件，无需转换。
难点：需要安装Adobe Acrobat DC，按照如下步骤，设计表单的域值。
Pdf模板准备好后，可以自行百度，查询itext如何根据pdf模板，填充内容
结果：最终没有选择这个方式，主要是因为，生成的pdf时，域值框，背景色是蓝色，没有多余时间研究如何变成白色，所以放弃了。
2、使用poi 实现word转换pdf
service类
InputStream docxInputStream = new FileInputStream(docxFilePath);
XWPFDocument document = new XWPFDocument(docxInputStream);
OutputStream out = new FileOutputStream(pdfFilePath);
PdfOptions options = PdfOptions.create();
document.createNumbering();
PdfConverter.getInstance().convert(document, out, options); // 需要注意，此类只能用低版本的Poi，所以把原来的4.1.2版本降为了3.12
docxInputStream.close();
out.close();
结果：此方式有不足，word有复选框或者和合并单元格这种复杂样式时，转换后的Pdf格式错乱，所以放弃此方法
3、使用libreoffice
需要安装liberoffice ，并配置path环境变量 
安装完后，可以从过cmd，来测试是否可行
pdf 包路径 .docx文件路径
1）创建LibreofficeUtils工具类
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
public class LibreofficeUtils {
public static boolean wordConverterToPdf(String docxPath,String targetPath, String osName) throws IOException {
File file = new File(docxPath);
try {
String command = "";
if (osName.contains("Windows")) {
command = "soffice --convert-to pdf -outdir " + targetPath + " " + docxPath;
} else {
command = "doc2pdf --output=" + targetPath + File.separator + file.getName().replaceAll(".(?i)docx", ".pdf") + " " + docxPath;
}
String result = executeCommand(command);
if (result.equals("") || result.contains("writer_pdf_Export")) {
return true;
}
} catch (Exception e) {
e.printStackTrace();
throw e;
}
return false;
}
private static String executeCommand(String command) {
StringBuffer output = new StringBuffer();
Process p;
InputStreamReader inputStreamReader = null;
BufferedReader reader = null;
try {
p = Runtime.getRuntime().exec(command);
p.waitFor();
inputStreamReader = new InputStreamReader(p.getInputStream(), "UTF-8");
reader = new BufferedReader(inputStreamReader);
String line = "";
while ((line = reader.readLine()) != null) {
output.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
try {
if (reader != null) {
reader.close();
}
if (inputStreamReader != null) {
inputStreamReader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
System.out.println(output.toString());
return output.toString();
}
}
2） service 类
// word转pdf
String targetPath = path + File.separator + "template" + File.separator + "convert" + File.separator + "pdf";
LibreofficeUtils.wordConverterToPdf(docxFilePath, targetPath, osName);
3）用到的jar包
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
结果：经过多种方法尝试，此方法可行
七、补充下，把pdf打成zip包代码实现
service实现类：
/**
* 多文件打成zip包
*
* @param path 如：D:
*/
private void pdfToZip(String path) {
// String convertPath = path + File.separator + "template" + File.separator + "convert" + File.separator + "pdf";
String convertPath = path + File.separator + "template" + File.separator + "convert";
File dir = new File(convertPath);
if (dir.isDirectory()) {
List<File> file = new ArrayList<>();
File[] files = dir.listFiles();
File zipFile = new File(convertPath + File.separator + "tianbao.zip");
for (int i = 0; i < files.length; i++) {
File f = files[i];
String fileName = f.getName();
String suffix = fileName.substring(fileName.lastIndexOf("."));
// if (suffix.equals(".pdf")) {
if (suffix.equals(".docx")) {
file.add(f);
}
}
ZipUtils.toZip(file, zipFile);
}
}
// 打包完zip后，输出
String convertPath = path + File.separator + "template" + File.separator + "convert";
// String zipPath = convertPath + File.separator + "pdf" + File.separator;
String zipPath = convertPath + File.separator;
HttpHeaders headers = new HttpHeaders();
headers.setContentDispositionFormData("attachment", "tb.zip");
ResponseEntity<byte[]> returnFile = new ResponseEntity<byte[]>(FileUtils.readFileToByteArray(new File(zipPath + "tb.zip")), headers, HttpStatus.OK);
// 删除文件
deleteFile(new File(convertPath));
retrun returnFile;
private void deleteFile(File file) {
if (file.isDirectory()) {
File[] files = file.listFiles();
for (int i = 0; i < files.length; i++) {
deleteFile(files[i]);
}
}
file.delete();
}
import org.springframework.boot.container.core.log.ZKLogger;
import org.springframework.boot.container.core.log.ZKLoggerFactory;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipUtils {
private static final ZKLogger logger = ZKLoggerFactory.getLogger(ZipUtils.class);
/**
* 把文件集合打成zip压缩包
* @param srcFiles 压缩文件集合
* @param zipFile zip文件名
* @throws RuntimeException 异常
*/
public static void toZip(List<File> srcFiles, File zipFile) throws RuntimeException {
long start = System.currentTimeMillis();
if(zipFile == null){
logger.error("压缩包文件名为空！");
return;
}
if(!zipFile.getName().endsWith(".zip")){
logger.error("压缩包文件名异常，zipFile={}", zipFile.getPath());
return;
}
ZipOutputStream zos = null;
FileOutputStream out = null;
try {
out = new FileOutputStream(zipFile);
zos = new ZipOutputStream(out);
for (File srcFile : srcFiles) {
byte[] buf = new byte[10*1024];
zos.putNextEntry(new ZipEntry(srcFile.getName()));
int len;
FileInputStream in = new FileInputStream(srcFile);
while ((len = in.read(buf)) != -1) {
zos.write(buf, 0, len);
}
//zos.setComment("我是注释");
in.close();
}
zos.closeEntry();
long end = System.currentTimeMillis();
logger.info("压缩完成，耗时：" + (end - start) + " ms");
} catch (Exception e) {
logger.error("ZipUtil toZip exception, ", e);
throw new RuntimeException("zipFile error from ZipUtils", e);
} finally {
if (zos != null) {
try {
zos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (out != null) {
try {
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
由于需求变更，WordUtils里添加合并单元格功能：
/**
* word跨行并单元格
* @param table 表格
* @param col 合并行所在列
* @param fromRow 开始行
* @param toRow 结束行
*/
public static void mergeCellsVertically(XWPFTable table, int col, int fromRow, int toRow) {
for (int rowIndex = fromRow; rowIndex <= toRow; rowIndex++) {
XWPFTableCell cell = table.getRow(rowIndex).getCell(col);
if ( rowIndex == fromRow ) {
cell.getCTTc().addNewTcPr().addNewVMerge().setVal(STMerge.RESTART);
} else {
cell.getCTTc().addNewTcPr().addNewVMerge().setVal(STMerge.CONTINUE);
}
}
}
