java - 使用 jodconverter 将 doc 转换为 pdf 时出错

Question

我正在使用以下代码使用jodconvert库将 doc 文件转换为 pdf。它仅在一段时间内正常工作，有时会触发错误，如下所述。

代码：

 try{
   Runtime rt = Runtime.getRuntime();  
   Process pSoffice = rt.exec(OpenOfficeConnString);
   File inputFile = srcDoc;
   String destDoc = srcDoc.getAbsolutePath().substring(0,
                    srcDoc.getAbsolutePath().lastIndexOf("."))
                    + "." + outputFileExt;

   outputFile = new File(destDoc);

   //connect to an OpenOffice.org instance running on port 8100
    OpenOfficeConnection connection = new SocketOpenOfficeConnection(
                    8100);
   connection.connect();
  // convert
   DocumentConverter converter = new OpenOfficeDocumentConverter(
                    connection);
   converter.convert(inputFile, outputFile);
// close the connection
   connection.disconnect();


}catch (Exception e) {
   e.printStackTrace();
}

错误：

java.net.ConnectException: connection failed: socket,host=localhost,port=8100,tcpNoDelay=1: java.net.ConnectException: Connection refused: connect