Problem solving: officeexception: failed to start and connect (I)

problem ：OfficeException: failed to start and connect（ One ）

scene ： restart tomcat After service , The preview system cannot be started

Output log ： start-up office Component failed , Please check office Is the component available

Report errors ：org.artofsolving.jodconverter.office.OfficeException: failed to start and connect

Identification reason I ：

1、 The unsuccessful killing of the process and the starting of the software process conflict with each other

boolean killOffice = killProcess();
if (killOffice) {
    
    logger.warn(" A running... Has been detected office process , The process has ended automatically ");
}
try {
    
    DefaultOfficeManagerConfiguration configuration = new DefaultOfficeManagerConfiguration();
    configuration.setOfficeHome(officeHome);
    configuration.setPortNumber(8100);
    //  Set the task execution timeout to 25 minute 
    configuration.setTaskExecutionTimeout(1000 * 60 * 25L);
    //  Set task queue timeout to 24 Hours 
    configuration.setTaskQueueTimeout(1000 * 60 * 60 * 24L);
    configuration.setMaxTasksPerProcess(1000);
    officeManager = configuration.buildOfficeManager();
    officeManager.start();
} catch (Exception e) {
    
    logger.error(" start-up office Component failed , Please check office Is the component available ");
    throw e;
}

// Kill the process core code 
String[] cmd ={
    "cmd","/c","taskkill /im soffice.bin /f"};
Process process= Runtime.getRuntime().exec(cmd);
// Output is 1, It can be seen that killing the process failed 
logger.warn("killProcess:process"+process.waitFor());

Solution one ：

I will kill soffice Code comments for the service process , Let it start directly ！

//boolean killOffice = killProcess();
//if (killOffice) {
//    logger.warn(" A running... Has been detected office process , The process has ended automatically ");
//}
try {
    DefaultOfficeManagerConfiguration configuration = new DefaultOfficeManagerConfiguration();
    configuration.setOfficeHome(officeHome);
    configuration.setPortNumber(8100);
    //  Set the task execution timeout to 25 minute 
    configuration.setTaskExecutionTimeout(1000 * 60 * 25L);
    //  Set task queue timeout to 24 Hours 
    configuration.setTaskQueueTimeout(1000 * 60 * 60 * 24L);
    configuration.setMaxTasksPerProcess(1000);
    officeManager = configuration.buildOfficeManager();
    officeManager.start();
} catch (Exception e) {
    logger.error(" start-up office Component failed , Please check office Is the component available ");
    throw e;
}

Found that it can start successfully ！ Try adding a delay after killing again ！

Thread.sleep(5000);

As a result, it can be started ！

Conclusion 1 ：

So the final problem is that after the kill process command is executed , You cannot immediately execute the startup command , It will lead to an error .