jodconverter4.1.0版本改进解析

布满荆棘的人生 2022-01-17 09:37 366阅读 0赞

[为什么80%的码农都做不了架构师？>>> ][80_] ![hot3.png][]

## 序 ##

jodconverter 4.1.0版本的话，改进了api的结构，同时新增了local以及online的模块，本文就来分析一下。

## maven ##

<dependency>
    			<groupId>org.jodconverter</groupId>
    			<artifactId>jodconverter-spring-boot-starter</artifactId>
    			<version>4.1.0</version>
    		</dependency>

## 依赖变化 ##

新版的话，对原来的jodconverter-core进行了抽离，将对libreoffice相关jar包的依赖从core模块中抽取出来，抽到jodconverter-local模块当中。 另外也新增了jodconverter-online模块，以支持libreoffice online server的远程调用。

*  Uno local方式是本地启动libreoffice，然后使用uno进行编程，操作本地的office。 ![Uno-Arc][]

相关的jar依赖如下

<dependency>
        <groupId>org.libreoffice</groupId>
        <artifactId>juh</artifactId>
        <version>5.4.2</version>
    </dependency>
    <dependency>
        <groupId>org.libreoffice</groupId>
        <artifactId>jurt</artifactId>
        <version>5.4.2</version>
    </dependency>
    <dependency>
        <groupId>org.libreoffice</groupId>
        <artifactId>ridl</artifactId>
        <version>5.4.2</version>
    </dependency>
    <dependency>
        <groupId>org.libreoffice</groupId>
        <artifactId>unoil</artifactId>
        <version>5.4.2</version>
    </dependency>

*  online

> This is LibreOffice Online, which provides basic collaborative editing of documents in a browser by re-using the LibreOffice core. Rendering fidelity should be excellent, and interoperability match that of LibreOffice. 可以部署到自己的私有云端，然后通过有ui界面可以操作，也通过http对外提供api服务。 比如

- API: HTTP POST to /lool/convert-to/<format>
            - the format is e.g. "png", "pdf" or "txt"
            - the file itself in the payload
        - example
            - curl -F "data=@test.txt" https://localhost:9980/lool/convert-to/docx > out.docx
    	- or in html:
              <form action="https://localhost:9980/lool/convert-to/docx" enctype="multipart/form-data" method="post">
                  File: <input type="file" name="data"><br/>
                  <input type="submit" value="Convert to DOCX">
              </form>

> jodconverter-online模块基于这个api使用apache http client进行了client端的封装并进行连接池的优化处理。

## api变化 ##

4.1.0版本改进了api，方便进行流式操作 旧版的如下

jodConverter.convert(inputFile, outputFile);

新版如下

File inputFile = new File("spreadsheet.xls");
    File outputFile = new File("spreadsheet.ods");
    JodConverter
             .convert(inputFile)
             .to(outputFile)
             .execute();

或者

InputStream inputStream = ...
    OutputStream outputStream = ...
    JodConverter
             .convert(inputStream)
             .as(DefaultDocumentFormatRegistry.XLS)
             .to(outputStream)
             .as(DefaultDocumentFormatRegistry.ODS)
             .execute();

## doc ##

*  [Uno][]
 *  [LibreOffice online][]
 *  [libreoffice online docker][]
 *  [liebreoffice online wsd api][]
 *  [LibreOffice online with file manager][]
 *  [jodconverter Java-Library][]

转载于:https://my.oschina.net/go4it/blog/1554300

[80_]: https://my.oschina.net/u/2663968/blog/3051541
[hot3.png]: /images/20220117/18fe2cdb73a44acdb76892587bebc959.png
[Uno-Arc]: /images/20220117/c651167738f7439bb1995150e0eabe4d.png
[Uno]: https://wiki.openoffice.org/wiki/Uno
[LibreOffice online]: https://github.com/LibreOffice/online
[libreoffice online docker]: https://hub.docker.com/r/libreoffice/online/
[liebreoffice online wsd api]: https://github.com/LibreOffice/online/blob/master/wsd/reference.txt
[LibreOffice online with file manager]: https://www.offidocs.com/index.php/libreoffice-file-manager-online
[jodconverter Java-Library]: https://github.com/sbraconnier/jodconverter/wiki/Java-Library