【open office+jodconverter】文件预览

一、环境/工具

　　1、Windows10 64

　　2、Apache OpenOffice 3.3.0 for Windows（ OOo_3.3.0_Win_x86_install-wJRE_zh-CN.exe）

　　3、jdk8

　　4、springboot项目工程

二、依赖

        <!--jodconverter-core-->
        <dependency>
            <groupId>org.jodconverter</groupId>
            <artifactId>jodconverter-core</artifactId>
            <version>4.3.0</version>
        </dependency>
        <!--jodconverter-local-->
        <dependency>
            <groupId>org.jodconverter</groupId>
            <artifactId>jodconverter-local</artifactId>
            <version>4.3.0</version>
        </dependency>
        <!--jodconverter-springboot-->
        <dependency>
            <groupId>org.jodconverter</groupId>
            <artifactId>jodconverter-spring-boot-starter</artifactId>
            <version>4.3.0</version>
        </dependency>

三、配置属性文件

# jodconverter
jodconverter.local.enabled=true
# 开启openoffice进程对应的端口
jodconverter.local.port-numbers=8200

四、编写测试用接口

package com.example.controller;

import org.jodconverter.core.DocumentConverter;
import org.jodconverter.core.office.OfficeException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.*;

/**
 * Description:文件转pdf预览
 * Package:com.example.controller
 *
 * @author lightbc
 * @version 1.0
 */
@RestController
@RequestMapping("/preview")
public class PreviewController {
    @Autowired
    private DocumentConverter converter;
    private String filePath="用于转化的文件全路径(例：d:/xxx/1.docx)";
    private String newFilePath="新生成的文件的存放目录（例：d:/temp）";
    private String newFileName="test.pdf";

    @RequestMapping(value = "/convert/file/2/pdf")
    public void convertFileToPDF(HttpServletResponse response){
        File file=new File(filePath);
        InputStream in;
        OutputStream out;
        File tempFile=new File(newFilePath);
        if(!tempFile.exists()){
            tempFile.mkdirs();
        }
        File newFile=new File(tempFile.getAbsolutePath()+File.separator+newFileName);
        // 清除首部空白行
        response.reset();
        try {
            converter.convert(file).to(newFile).execute();
            in=new BufferedInputStream(new FileInputStream(newFile));
            byte[] b=new byte[in.available()];
            in.read(b);
            out=response.getOutputStream();
            out.write(b);
            in.close();
            out.flush();
            out.close();
        } catch (OfficeException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}