思路：其他文档转成配pdf然后通过流发送到前台，前台支持pdf
1.jodconverter-spring-boot-starter方法
1.pom文件
<!--jodconverter 核心包 -->
<dependency>
<groupId>org.jodconverter</groupId>
<artifactId>jodconverter-core</artifactId>
<version>4.2.2</version>
</dependency>
<!--springboot支持包，里面包括了自动配置类 -->
<dependency>
<groupId>org.jodconverter</groupId>
<artifactId>jodconverter-spring-boot-starter</artifactId>
<version>4.2.2</version>
</dependency>
<!--jodconverter 本地支持包 -->
<dependency>
<groupId>org.jodconverter</groupId>
<artifactId>jodconverter-local</artifactId>
<version>4.2.2</version>
</dependency>
2.application.xml
jodconverter:
local:
enabled: true
max-tasks-per-process: 10
port-numbers: 8100
3.调用
@RestController
public class OnlinePreviewController {
// 第一步：转换器直接注入
@Autowired
DocumentConverter documentConverter;
@GetMapping("/toPdfFile")
public String toPdfFile(FileMessage fileMessage) {
// 获取HttpServletResponse
HttpServletResponse response =
((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getResponse();
// 需要转换的文件
File file = new File(fileMessage.getFileDownloadUri());
try {
// 转换之后文件生成的地址
File newFile = new File("D:/common_files/pdf");
if (!newFile.exists()) {
newFile.mkdirs();
}
String converterPdf = "D:/common_files/pdf" + "/" + fileMessage.getFileName() + "-pdf.pdf";
// 文件转化
documentConverter.convert(file).to(new File(converterPdf)).execute();
// 使用response,将pdf文件以流的方式发送的前段
ServletOutputStream outputStream = response.getOutputStream();
// 读取文件
InputStream in = new FileInputStream(new File(converterPdf));
// copy文件
int i = IOUtils.copy(in, outputStream);
System.out.println(i);
in.close();
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
return "This is to pdf";
}
}
但是这种会发生excle过长穿行的情况;
2.使用com.artofsolving
1.pom文件
<dependency>
<groupId>com.artofsolving</groupId>
<artifactId>jodconverter</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>org.openoffice</groupId>
<artifactId>jurt</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.openoffice</groupId>
<artifactId>ridl</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.openoffice</groupId>
<artifactId>juh</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.openoffice</groupId>
<artifactId>unoil</artifactId>
<version>3.0.1</version>
</dependency>
注意2.2.2是在maven服务器上没有 所以需要单独下载处理 直接上网盘地址
提取码：57nm
2.Controller
import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
@RestController
public class OnlinePreviewController {
@GetMapping("/toPdfFile")
public void toPdfFile(FileMessage fileMessage) throws IOException {
// 获取HttpServletResponse
HttpServletResponse response =
((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getResponse();
// 源文件目录
File inputFile = new File(fileMessage.getFileDownloadUri());
if (!inputFile.exists()) {
System.out.println("源文件不存在！");
return;
}
// 转换之后文件生成的地址
File newFile = new File("D:/common_files/pdf");
if (!newFile.exists()) {
newFile.mkdirs();
}
String converterPdf = "D:/common_files/pdf" + "/" + fileMessage.getFileName() + "-pdf.pdf";
// 输出文件目录
File outputFile = new File(converterPdf);
if (!outputFile.getParentFile().exists()) {
outputFile.getParentFile().exists();
}
// 调用openoffice服务线程
String command =
"C:/Program Files (x86)/OpenOffice 4/program/soffice.exe -headless -accept=\"socket,host=127.0.0.1,port=8100;urp;\"";
Process p = Runtime.getRuntime().exec(command);
// 连接openoffice服务
OpenOfficeConnection connection = new SocketOpenOfficeConnection("127.0.0.1", 8100);
connection.connect();
// 转换
DocumentConverter converter = new ConverterDocument(connection);
converter.convert(inputFile, outputFile);
ServletOutputStream outputStream = response.getOutputStream();
// 读取文件
InputStream in = new FileInputStream(new File(converterPdf));
// copy文件
int i = IOUtils.copy(in, outputStream);
in.close();
outputStream.close();
// 关闭连接
connection.disconnect();
// 关闭进程
p.destroy();
System.out.println("转换完成！");
}
}
转换方法为
DocumentConverter converter = new ConverterDocument(connection);
converter.convert(inputFile, outputFile);
因为excel折行问题 所以我们把纸张改变 重写了ConverterDocument
3.ConverterDocument
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.converter.StreamOpenOfficeDocumentConverter;
import com.sun.star.awt.Size;
import com.sun.star.beans.PropertyValue;
import com.sun.star.lang.XComponent;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.view.PaperFormat;
import com.sun.star.view.XPrintable;
/**
* 应用模块名称:
* 代码描述:
* Copyright: Copyright (C) 2020, Inc. All rights reserved.
* Company: 万朋测绘科技有限公司
*
* @author baocl
* @since 2020/5/27 14:49
*/
public class ConverterDocument extends StreamOpenOfficeDocumentConverter {
public ConverterDocument(OpenOfficeConnection connection) {
super(connection);
}
public final static Size A5, A4, A3;
public final static Size B4, B5, B6;
public final static Size paperSize;
static {
A5 = new Size(14800, 21000);
A4 = new Size(21000, 29700);
A3 = new Size(29700, 42000);
B4 = new Size(25000, 35300);
B5 = new Size(17600, 25000);
B6 = new Size(12500, 17600);
// 最大限度 宽 1600000
paperSize = new Size(29700, 27940);
}
@Override
protected void refreshDocument(XComponent document) {
super.refreshDocument(document);
XPrintable xPrintable = (XPrintable)UnoRuntime.queryInterface(XPrintable.class, document);
PropertyValue[] printerDesc = new PropertyValue[2];
// 转换
printerDesc[0] = new PropertyValue();
printerDesc[0].Name = "PaperFormat";
printerDesc[0].Value = PaperFormat.USER;
// 纸张大小
printerDesc[1] = new PropertyValue();
printerDesc[1].Name = "PaperSize";
printerDesc[1].Value = paperSize;
try {
xPrintable.setPrinter(printerDesc);
} catch (Exception e) {
e.printStackTrace();
}
}
}
但是这里有一个问题 多sheet页 只有第一页改变了 所以解决办法想了两个
1：将多个sheet合成一个
2：将多sheet也分开打印
