openoffice java word 或 pdf 转图片（linux安装）

港控/mmm° 2021-10-16 01:30 510阅读 0赞

##### 在项目开发过程中遇到word、pdf转图片 方便预览的问题，经过多次选择 最后用openoffice #####

*Apache\_OpenOffice\_4.1.4\_Linux\_x86-64\_install-rpm\_zh-CN.tar.gz*

> 官网下载太慢 下面是百度云盘链接

**链接：[https://pan.baidu.com/s/1mOLh4NEnmTX7AEciRLVVpQ][https_pan.baidu.com_s_1mOLh4NEnmTX7AEciRLVVpQ]  
提取码：t8ba  
复制这段内容后打开百度网盘手机App，操作更方便哦**

#### 1、下载完成之后 上传到linux服务器进行安装 ####

编译安装：

本人资源包放在 /opt/moudles 中, 解压后放在 /opt/softwares 中

解压 openoffice 包

[root@localhost moudles]# tar -zxvf Apache_OpenOffice_4.1.4_Linux_x86-64_install-rpm_zh-CN.tar.gz  -C ../softwares/

解压之后会在 /opt/softwares 中生成 文件夹，进入中文件夹。

[root@localhost moudles]# cd /opt/softwares/zh-CN/RPMS

运行 yum localinstall \*.rpm

[root@localhost RPMS]# yum localinstall *.rpm

成功之后会在当前目录生成 文件夹，运行 yum localinstall 。

[root@localhost desktop-integration]# yum localinstall openoffice4.1.4-redhat-menus-4.1.4-9788.noarch.rpm

安装成功会在 /opt 目录下生成 文件夹。

启动：

临时启动： 临时启动之后画面就不会动了, 不要认为是死机。只要不报错就是好现象。

[root@localhost desktop-integration]# /opt/openoffice4/program/soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard

永久启动：

[root@localhost desktop-integration]# nohup /opt/openoffice4/program/soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard &

查看是否启动成功：

[root@localhost opt]# ps -ef|grep openoffice

查看端口：

[root@localhost opt]# netstat -lnp |grep 8100

说明启动成功, 大功告成！

#### 2、java代码部分 ####

如果文件类型为word 则先转为pdf再转图片，如果是pdf则直接转为图片。

public String uploadWord2Pdf(HttpServletRequest request) throws Exception { 
    		StringBuilder sb = new StringBuilder();
    		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest)request;
    		Map<String,MultipartFile> fileMap = multipartRequest.getFileMap();
    		if (fileMap != null) { 
    			for (Map.Entry<String, MultipartFile> entity:fileMap.entrySet()) { 
    				MultipartFile f = entity.getValue();
    				String fileName = f.getOriginalFilename();
    				String b = fileName.substring(fileName.indexOf(".")+1, fileName.length());
    				if(b.equals("doc")||b.equals("docx")) { 
    					ObjectId id = gridFsTemplate.store(f.getInputStream(), f.getOriginalFilename(),f.getContentType());
    					File file = new File(id.toString()+"."+b);
    					FileTransType.inputstreamtofile(f.getInputStream(), file);
    					//pdf
    					File file1 = new File(id.toString()+".pdf");
    					FileTransType.word2Pdf(file,file1);
    					InputStream insImage = FileTransType.pdf2Image(file1, 300);
    					ObjectId id1 = gridFsTemplate.store(insImage, id+".png","image/png");
    					sb.append(id1.toString());
    					//ins.close();
    					insImage.close();
    					file.delete();
    					file1.delete();
    				}else { 
    					ObjectId id = gridFsTemplate.store(f.getInputStream(), f.getOriginalFilename(),f.getContentType());
    					File file = new File(id.toString()+"."+b);
    					FileTransType.inputstreamtofile(f.getInputStream(), file);
    					InputStream insImage = FileTransType.pdf2Image(file, 300);
    					ObjectId id1 = gridFsTemplate.store(insImage, id+".png","image/png");
    					sb.append(id1.toString());
    					//ins.close();
    					insImage.close();
    					file.delete();
    				}
    				
    			}
    			
    		}
    		return sb.toString();
        }

工具类

import java.awt.image.BufferedImage;
    import java.io.ByteArrayInputStream;
    import java.io.ByteArrayOutputStream;
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.net.ConnectException;
    import java.net.URL;
    import java.net.URLConnection;
    
    import javax.imageio.ImageIO;
    import javax.imageio.stream.ImageOutputStream;
    
    import org.apache.pdfbox.pdmodel.PDDocument;
    import org.apache.pdfbox.rendering.PDFRenderer;
    import com.artofsolving.jodconverter.DocumentConverter;
    import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
    import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
    import com.artofsolving.jodconverter.openoffice.converter.StreamOpenOfficeDocumentConverter;
    
    /** * * @author Streaker * */
    
    public class FileTransType { 
    	
    	//pdf文件转图片
    	public static InputStream pdf2Image(File file,  int dpi) throws Exception { 
    		InputStream is = null;
    		ByteArrayOutputStream bs = new ByteArrayOutputStream();
            ImageOutputStream imOut;
            PDDocument pdDocument = PDDocument.load(file);
            PDFRenderer renderer = new PDFRenderer(pdDocument);
            BufferedImage image = renderer.renderImageWithDPI(0, dpi);
            imOut = ImageIO.createImageOutputStream(bs);
            ImageIO.write(image, "png", imOut);
            image.flush();
            is= new ByteArrayInputStream(bs.toByteArray());
            is.close();
            return is;
        }
        
        
    	 // word文件转pdf
        public  static void word2Pdf(File sourceFile,File pdfFile) throws Exception{ 
                    OpenOfficeConnection connection = new SocketOpenOfficeConnection("47.92.73.98",8100);
                    try { 
                        connection.connect();
                        DocumentConverter converter = new StreamOpenOfficeDocumentConverter(connection);
                        converter.convert(sourceFile, pdfFile);
                        pdfFile.createNewFile();
                        connection.disconnect();
                        System.out.println("第二步：转换为PDF格式 路径" + pdfFile.getPath());
                    } catch (java.net.ConnectException e) { 
                        //} catch (Exception e) { 
                        e.printStackTrace();
                        System.out.println("OpenOffice服务未启动");
                        try { 
                            throw e;
                        } catch (ConnectException e1) { 
                            e1.printStackTrace();
                        }
                    } catch (com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException e) { 
                        e.printStackTrace();
                        System.out.println("读取文件失败");
                        throw e;
                    } catch (Exception e){ 
                        e.printStackTrace();
                        try { 
                            throw e;
                        } catch (Exception e1) { 
                            e1.printStackTrace();
                        }
                    }
        }
        
        public static InputStream download(String urlString) throws Exception {   
            // 构造URL 
            URL url = new URL(urlString);  
           // 打开连接 
    	    URLConnection con = url.openConnection();  
    	  //设置请求超时为5s 
    	    con.setConnectTimeout(5*1000);  
    	     // 输入流 
    	     InputStream is = con.getInputStream();  
    
    	     return is;
    
        }
        public static void inputstreamtofile(InputStream ins,File file) throws Exception{ 
        	   
        	   OutputStream os = new FileOutputStream(file);
        	   int bytesRead = 0;
        	   byte[] buffer = new byte[8192];
        	   while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) { 
        	      os.write(buffer, 0, bytesRead);
        	   }
        	   os.close();
        	   ins.close();
        	}
        public static File asFile(InputStream inputStream) throws IOException{ 
         	File tmp = File.createTempFile("lzq", ".tmp", new File("H:\\"));
         	OutputStream os = new FileOutputStream(tmp);
            int bytesRead = 0;
            byte[] buffer = new byte[8192];
            while ((bytesRead = inputStream.read(buffer, 0, 8192)) != -1) { 
              os.write(buffer, 0, bytesRead);
            }
            inputStream.close();
            return tmp;
         }
    
    }

[https_pan.baidu.com_s_1mOLh4NEnmTX7AEciRLVVpQ]: https://pan.baidu.com/s/1mOLh4NEnmTX7AEciRLVVpQ