openoffice实现word文档转pdf,并实现预览功能
之前写的一篇文件转pdf,页面实现预览功能,访问项目外的静态资源解决方法很不幸的失败了,原因是本地服务器使用的是tomcat,可以很方便的通过设置虚拟路径实现页面对本地文件的访问,但是正式服务器使用的是websphere,设置虚拟路径的方式及其复杂(服务器知识不够),所以采用了代码的方式实现预览,方法如下:
pom.xml引入相关依赖
<dependency>
<groupId>org.jodconvertergroupId>
<artifactId>jodconverter-localartifactId>
<version>4.2.2version>
<exclusions>
<exclusion>
<artifactId>slf4j-apiartifactId>
<groupId>org.slf4jgroupId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>org.jodconvertergroupId>
<artifactId>jodconverter-coreartifactId>
<version>4.2.2version>
<exclusions>
<exclusion>
<artifactId>slf4j-apiartifactId>
<groupId>org.slf4jgroupId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>com.artofsolvinggroupId>
<artifactId>jodconverter-maven-pluginartifactId>
<version>2.2.1version>
<exclusions>
<exclusion>
<artifactId>slf4j-apiartifactId>
<groupId>org.slf4jgroupId>
exclusion>
<exclusion>
<artifactId>ridlartifactId>
<groupId>org.openofficegroupId>
exclusion>
<exclusion>
<artifactId>juhartifactId>
<groupId>org.openofficegroupId>
exclusion>
<exclusion>
<artifactId>unoilartifactId>
<groupId>org.openofficegroupId>
exclusion>
<exclusion>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-jdk14artifactId>
exclusion>
exclusions>
dependency>
因为项目中使用的slf4j版本是1.7.21,这里发生了jar包冲突,请根据实际情况选择是否需要排除
2.本地项目启动时通过代码启动openoffice服务,项目组有个大神自定义了DispatcherServlet,所以我选择的是在spring容器初始化时启动,代码如下:
- 相关配置prop.properties:
# 本地为0,测试及正式环境为1
serverType=0
#openoffice在本地的路径
openOfficePath = D://RICHENINFO/openoffice4
- 初始化启动openoffice,这里只在本地环境下启动openoffice服务,测试及正式环境通过命令启动
public class CustomDispatcherServlet extends HttpServlet {
private LocalOfficeManager officeManager;
private String serverType;
@Override
public void init(ServletConfig config) throws ServletException {
initOpenOffice();
}
@Override
public void destroy() {
// 本地服务销毁时,停止openOffice服务
if ("0".equals(serverType)) {
OfficeUtils.stopQuietly(officeManager);
}
}
private void initOpenOffice() {
String openOfficePath = null;
try {
// 读取配置文件
Properties properties = PropertiesLoaderUtils.loadAllProperties("prop.properties");
openOfficePath = properties.getProperty("openOfficePath");
serverType = properties.getProperty("serverType");
} catch (Exception e) {
e.printStackTrace();
return;
}
// 服务器类型为本地,通过代码启动openoffice服务
if ("0".equals(serverType)) {
// 如果openOffice服务已启动,不再执行启动代码
if (officeManager != null && officeManager.isRunning()) {
return;
}
officeManager = LocalOfficeManager.builder().officeHome(openOfficePath).install().build();
try {
officeManager.start();
} catch (OfficeException e) {
e.printStackTrace();
return;
}
}
}
}
}
3.服务器配置openoffice
-
上传openoffice安装包
/wasapp/ -
解压、安装openoffice
tar -xvzf Apache_OpenOffice_4.1.3_Linux_x86-64_install-deb_zh-CN.tar.gz cd zh-CN/RPMS/ rpm -ivh *.rpm cd desktop-integration rpm -ivh openoffice4.1.3-redhat-menus-4.1.3-9783.noarch.rpm
安装后的openoffice在opt/openoffice4目录
-
openoffice赋权
安装后的权限为root,需要为was用户赋权,执行以下命令
-
mv /opt/openoffice /wasapp/
-
chown -R was:wasgroup /wasapp/openoffice4
-
ls -lrt 查看文件夹权限,看到权限归属为was,即赋权成功
[was@cs-mz-wastest-rz-4 wasapp]$ cd openoffice4/ [was@cs-mz-wastest-rz-4 openoffice4]$ ls -lrt total 60 drwxr-xr-x 16 was wasgroup 4096 Oct 23 2018 presets drwxr-xr-x 22 was wasgroup 4096 Oct 23 2018 share -r--r--r-- 1 was wasgroup 10470 Oct 23 2018 README.html -r--r--r-- 1 was wasgroup 9925 Oct 23 2018 README drwxr-xr-x 3 was wasgroup 4096 Sep 10 20:21 help drwxr-xr-x 2 was wasgroup 4096 Sep 10 20:21 readmes drwxr-xr-x 6 was wasgroup 20480 Sep 10 20:21 programo
-
-
启动openoffice服务
以was用户启动服务,否则会因权限问题无法读取pdf文件,执行exit退出root用户-
cd /wasapp/openoffice4/program
-
./soffice --headless --accept=“socket,host=127.0.0.1,port=8100;urp;” --nofirststartwizard &
-
ps -ef | grep office 控制台输出以下内容即启动成功
[was@cs-mz-wastest-rz-4 ~]$ ps -ef | grep office was 24466 1 0 15:05 ? 00:00:00 /bin/sh ./soffice -headless -accept=socket,host=127.0.0.1,port=8100;urp; -nofirststartwizard was 24475 24466 0 15:05 ? 00:00:06 /wasapp/openoffice4/program/soffice.bin -headless -accept=socket,host=127.0.0.1,port=8100;urp; -nofirststartwizard was 27500 27474 0 15:36 pts/0 00:00:00 grep --color=auto office
-
-
停止服务
- ps -ef | grep office 获取进程pid
- kill -9 进程pid
4.调用openoffice服务转换文档
- 核心代码如下
/**
*
* @param inputPath 原始文件的路径
* @param outputPath 输出pdf的路径
*/
private static void convert(String inputPath, String outputPath) {
String openOfficePath = null;
String serverType = null;
try {
Properties properties = PropertiesLoaderUtils.loadAllProperties("prop.properties");
openOfficePath = properties.getProperty("openOfficePath");
serverType = properties.getProperty("serverType");
} catch (Exception e) {
e.printStackTrace();
return;
}
File inputFile = new File(inputPath);
File outputFile = new File(outputPath);
if (outputFile.exists()) return;
if (inputPath.endsWith(".zip") || inputPath.endsWith(".rar")) return;
// linux 使用以下代码
// 连接服务,本地启动openoffice的默认端口是2002,命令启动的默认端口是8100
int port = 8100;
if ("0".equals(serverType)) {
port = 2002;
}
OpenOfficeConnection connection = new SocketOpenOfficeConnection("127.0.0.1",port);
try {
connection.connect();
} catch (ConnectException e) {
System.err.println("文件转换出错，请检查OpenOffice服务是否启动。");
}
// convert 转换
DocumentConverter converter = new OpenOfficeDocumentConverter(connection);
converter.convert(inputFile, outputFile);
connection.disconnect();
}
5.实现pdf预览
步骤3启动服务并将服务启动权限更改为了was用户,所以这里可以通过输入流直接读取到文件,再以流的形式输出到浏览器,通过标签请求即可实现pdf预览,java代码如下
// 请求pdf文件
@RequestMapping(value = "/getPdf")
public void getKnowledgeText(@RequestParam(value = "pdfPath") String pdfPath, HttpServletRequest req, HttpServletResponse res) {
File file = new File(pdfPath);
res.setContentType("application/pdf");
InputStream is = null;
OutputStream os = null;
try {
is = new FileInputStream(file);
os = res.getOutputStream();
byte[] bytes = new byte[1024*1024];
int c = -1;
int x = 0;
while ((c = is.read(bytes)) != -1) {
x = x + c;
os.write(bytes, 0, c);
}
os.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (os != null) {
os.close();
}
if (is != null) {
is.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
到此,通过openoffice实现文档转pdf、预览pdf功能实现