使用Libreoffice实现word转pdf

最新推荐文章于 2025-06-20 10:06:41 发布

原创最新推荐文章于 2025-06-20 10:06:41 发布 · 1.8k 阅读

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#libreoffice #word转pdf

本文介绍了一种使用LibreOffice将多种办公文档格式转换为PDF的方法。通过Java编程实现，支持doc、docx、xls、xlsx、ppt、pptx和txt等文件格式的转换。代码中详细展示了如何配置LibreOffice环境并进行文件处理。

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import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.artofsolving.jodconverter.OfficeDocumentConverter;
import org.artofsolving.jodconverter.office.DefaultOfficeManagerConfiguration;
import org.artofsolving.jodconverter.office.OfficeManager;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.regex.Pattern;

public class TextUtil {

private static String LIBREOFFIC_HOME_WINDOWS = "C:\\Program Files\\LibreOffice 5";
private static String LIBREOFFIC_HOME_LINUX = "/usr/bin";
public static void main(String[] args) throws IOException {
File input = new File("C:\\Users\\LQG\\Desktop\\test.xlsx");
File output = new File("C:\\Users\\LQG\\Desktop\\execl.pdf");
FileInputStream fileInputStream = new FileInputStream("C:\\Users\\LQG\\Desktop\\test.docx");
FileOutputStream fileOutputStream = new FileOutputStream("C:\\Users\\LQG\\Desktop\\io.pdf");
libreOffice2PDF(fileInputStream,fileOutputStream,"docx");
}
public static String getLibreOfficeHome() {
String osName = System.getProperty("os.name");
if (Pattern.matches("Linux.*", osName)) {
return LIBREOFFIC_HOME_LINUX;
} else if (Pattern.matches("Windows.*", osName)) {
return LIBREOFFIC_HOME_WINDOWS;
}
return null;
}
/**
* 转换libreoffice支持的文件为pdf
* @param inputfile 输入文件
* @param outputfile 输出的文件
*/
public static void libreOffice2PDF(File inputfile, File outputfile) {
String LibreOffice_HOME = getLibreOfficeHome();
DefaultOfficeManagerConfiguration configuration = new DefaultOfficeManagerConfiguration();
// libreOffice的安装目录
if(StringUtils.isEmpty(LibreOffice_HOME)){
throw new BaseException("libreoffice_home is not found");
}
configuration.setOfficeHome(new File(LibreOffice_HOME));
// 端口号
configuration.setPortNumber(8100);
configuration.setTaskExecutionTimeout(1000 * 60 * 25L);
//设置任务执行超时为10分钟
configuration.setTaskQueueTimeout(1000 * 60 * 60 * 24L);
//设置任务队列超时为24小时
OfficeManager officeManager = configuration.buildOfficeManager();
officeManager.start();
OfficeDocumentConverter converter = new OfficeDocumentConverter(officeManager);
converter.getFormatRegistry();
try {
converter.convert(inputfile, outputfile);
} catch (Exception e) {
e.printStackTrace();
} finally {
officeManager.stop();
}
}
private static File txtHandler(File file) {
//或GBK
String code = "gb2312";
byte[] head = new byte[3];
try {
InputStream inputStream = new FileInputStream(file);
inputStream.read(head);
if (head[0] == -1 && head[1] == -2) {
code = "UTF-16";
} else if (head[0] == -2 && head[1] == -1) {
code = "Unicode";
} else if (head[0] == -17 && head[1] == -69 && head[2] == -65) {
code = "UTF-8";
}
inputStream.close();

System.out.println(code);
if (code.equals("UTF-8")) {
return file;
}
String str = FileUtils.readFileToString(file, code);
FileUtils.writeStringToFile(file, str, "UTF-8");
System.out.println("转码结束");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return file;
}

/**
* office文件转pdf
* @param fileInputStream 输入流
* @param fileOutputStream 输出流
* @param fileExt 文件后缀 doc,docx,xls,xlsx,ppt,pptx,txt
*/

public static void libreOffice2PDF(FileInputStream fileInputStream,

FileOutputStream fileOutputStream,

String fileExt) throws IOException {

if(StringUtils.isEmpty(fileExt)){
throw new BaseException("error.fileExt" + fileExt);
}
File inputFile = null;
switch (fileExt){
case "doc":
inputFile = new File("src/main/resources/tempFile/tempDoc.doc");
break;
case "docx":
inputFile = new File("src/main/resources/tempFile/tempDocx.docx");
break;
case "xls":
inputFile = new File("src/main/resources/tempFile/tempXls.xls");
break;
case "xlsx":
inputFile = new File("src/main/resources/tempFile/tempXlss.xlsx");
break;
case "ppt":
inputFile = new File("src/main/resources/tempFile/tempPpt.ppt");
break;
case "pptx":
inputFile = new File("src/main/resources/tempFile/tempPptx.pptx");
break;
case "txt":
inputFile = new File("src/main/resources/tempFile/tempTxt.txt");
txtHandler(inputFile);
break;
default:
throw new BaseException("error.fileExt" + fileExt);
}
byte[] byteArr = IOUtils.toByteArray(fileInputStream);
FileUtils.writeByteArrayToFile(inputFile,byteArr);

File outFile = new File("/tempFile/tempPdf.pdf");
libreOffice2PDF(inputFile,outFile);
byte[] bytes = FileUtils.readFileToByteArray(outFile);
fileOutputStream.write(bytes);
}

}

上述代码为实现libreoffice转pdf的操作代码,完整的文档请看https://download.youkuaiyun.com/download/lvguoqiangm/10324036