OnlyOffice二次开发探索(J2EE)

偏执的太偏执、 2022-04-22 15:00 791阅读 0赞

## 一.安装OnlyOffice环境 ##

可以参考：

1.[Win7上通过DckerToolbox部署OnlyOffice][Win7_DckerToolbox_OnlyOffice]

2.[Linux通过Docker部署OnlyOffice][Linux_Docker_OnlyOffice]

## 二.基于官网Java集成示例 ##

1.下载官网示例代码

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70][]

2.官网案例运行

Jdk1.8、windows操作系统、maven、tomcat（使用idea不需要安装）、eclipse/idea开发工具

使用idea开发需在pom.xml导入tomcat插件即可，使用eclipse开发，需安装tomcat,并部署至tomcat容器中，运行项目工程。

我使用的是eclipse

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 1][]

如果是idea加上

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 2][]

修改配置文件settings.properties，配置自己的Document Server服务器地址

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 3][]

运行项目以后出现下图界面表示运行成功

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 4][]

3.案例修改

一般打开文件或者创建文件会出现

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 5][]

主要是因为url或者callbackUrl路径不正确

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 6][]

url是打开文件地址，地址保证onlyoffice服务器可以访问到即可

callbackUrl我们可以写一个回调方法，将文件保存到自己想保存的位置，我是写了一个CallBackServlet，保存到本地硬盘，具体存到哪里可根据业务需求，也可以配置专门的文件服务器

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    	       PrintWriter writer = null;
    	        System.out.println("===saveeditedfile------------") ;
    	        try {
    	            writer = response.getWriter();
    	            Scanner scanner = new Scanner(request.getInputStream()).useDelimiter("\\A");
    	            String body = scanner.hasNext() ? scanner.next() : "";
    	            JSONObject jsonObj = (JSONObject) new JSONParser().parse(body);
    	            System.out.println("===saveeditedfile:" + jsonObj.get("status")) ;
    	            /*
    	                0 - no document with the key identifier could be found,
    	                1 - document is being edited,
    	                2 - document is ready for saving,
    	                3 - document saving error has occurred,
    	                4 - document is closed with no changes,
    	                6 - document is being edited, but the current document state is saved,
    	                7 - error has occurred while force saving the document.
    	             * */
    	            if ((long) jsonObj.get("status") == 2) {
    	                /*
    	                 * 当我们关闭编辑窗口后，十秒钟左右onlyoffice会将它存储的我们的编辑后的文件，，此时status = 2，通过request发给我们，我们需要做的就是接收到文件然后回写该文件。
    	                 * */
    	                /*
    	                 * 定义要与文档存储服务保存的编辑文档的链接。当状态值仅等于2或3时，存在链路。
    	                 * */
    	                String downloadUri = (String) jsonObj.get("url");
    	                System.out.println("====文档编辑完成，现在开始保存编辑后的文档，其下载地址为:" + downloadUri);
    	                //解析得出文件名
    	                //String fileName = downloadUri.substring(downloadUri.lastIndexOf('/')+1);
    	                String fileName = request.getParameter("fileName");
    	                System.out.println("====下载的文件名:" + fileName);
    
    	                URL url = new URL(downloadUri);
    	                java.net.HttpURLConnection connection = (java.net.HttpURLConnection) url.openConnection();
    	                InputStream stream = connection.getInputStream();
    	                //更换为实际的路径
    	                File savedFile = new File("F:\\DataOfHongQuanzheng\\onlyoffice_data\\app_data\\"+fileName);
    	                try (FileOutputStream out = new FileOutputStream(savedFile)) {
    	                    int read;
    	                    final byte[] bytes = new byte[1024];
    	                    while ((read = stream.read(bytes)) != -1) {
    	                        out.write(bytes, 0, read);
    	                    }
    	                    out.flush();
    	                }
    	                connection.disconnect();
    	            }
    	        } catch (IOException e) {
    	            // TODO Auto-generated catch block
    	            e.printStackTrace();
    	        } catch (ParseException e) {
    	            // TODO Auto-generated catch block
    	            e.printStackTrace();
    	        }
    	        /*
    	         * status = 1，我们给onlyoffice的服务返回{"error":"0"}的信息，这样onlyoffice会认为回调接口是没问题的，这样就可以在线编辑文档了，否则的话会弹出窗口说明
    	         * */
    	        writer.write("{\"error\":0}");
    	}

修改后可以正常打开文件了

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 7][]

关闭后如果有做修改，会自动保存

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 8][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 9][]

## 三.我的案例源码  ##

因为官网的demo无法直接运行，也有挺多网友问我要demo,我就把我改的demo放到github希望可以帮到大家

地址：[https://github.com/hqzhen/DemoOfOnlyoffice.git][https_github.com_hqzhen_DemoOfOnlyoffice.git]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 10][]

[Win7_DckerToolbox_OnlyOffice]: https://blog.csdn.net/xm393392625/article/details/86316303
[Linux_Docker_OnlyOffice]: https://blog.csdn.net/xm393392625/article/details/86313531
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 7]: /images/20220327/c9d0ae25dee942848bfb8959f8017d91.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3htMzkzMzkyNjI1_size_16_color_FFFFFF_t_70 8]: /images/20220327/189b84c007de4aba9902e9d64b56bc46.png
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[https_github.com_hqzhen_DemoOfOnlyoffice.git]: https://github.com/hqzhen/DemoOfOnlyoffice.git
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