MPJX2.1生成微软Project MPX文件

package mpx;

import java.util.Locale;

import net.sf.mpxj.DateRange;
import net.sf.mpxj.Day;
import net.sf.mpxj.Duration;
import net.sf.mpxj.FieldType;
import net.sf.mpxj.ProjectCalendar;
import net.sf.mpxj.ProjectCalendarHours;
import net.sf.mpxj.ProjectFile;
import net.sf.mpxj.ProjectHeader;
import net.sf.mpxj.Relation;
import net.sf.mpxj.RelationType;
import net.sf.mpxj.Resource;
import net.sf.mpxj.Task;
import net.sf.mpxj.TaskField;
import net.sf.mpxj.TimeUnit;
import net.sf.mpxj.mpx.MPXWriter;
import net.sf.mpxj.utility.NumberUtility;

public class CreateMPX
{
	public CreateMPX()
	{
	}

	public static void main(String args[])
	{
		try
		{
			create("d:\\output.MPX");
		}
		catch (Exception ex)
		{
			ex.printStackTrace(System.out);
		}
	}

	
	private static void create(String filename) throws Exception
	{
		ProjectFile file =new ProjectFile();
					
		Task task1 = file.addTask();
		task1.setName("task1");
		task1.setUniqueID(1);
		task1.setID(1);
		task1.setOutlineLevel(task0.getOutlineLevel()+1);
		
		Task task11 = task1.addTask();
		task11.setName("task1-1");
		task11.setDuration(Duration.getInstance(6, TimeUnit.DAYS));
		task11.setStart(java.sql.Date.valueOf("2008-8-21"));
		task11.setFinish(java.sql.Date.valueOf("2008-8-26"));
		task11.setPercentageComplete(NumberUtility.getDouble(90D));
		task11.setUniqueID(2);
		task11.setID(2);
		task11.setResourceNames("one");
				
		Task task12 = task1.addTask();
		task12.setName("task12");
		task12.setDuration(Duration.getInstance(5, TimeUnit.DAYS));
		task12.setStart(java.sql.Date.valueOf("2008-8-27"));
		task12.setFinish(java.sql.Date.valueOf("2008-8-31"));
		task12.setResourceNames("two");
		task12.setUniqueID(3);
		task12.setID(3);
			
                  //前置关系
		Relation r=task12.addPredecessor(task11);	

	         r.setType(RelationType.FINISH_START);
	         r.setTaskUniqueID(task11.getUniqueID());
		
		ProjectCalendar pc=file.addBaseCalendar();
		
                  //设置工作日历 这里设的周1－7全部工作，呵呵 如不设默认为5天工作制
		pc.setName("压榨民工");
		pc.setWorkingDay(Day.SUNDAY, true);
		pc.setWorkingDay(Day.MONDAY, true);
		pc.setWorkingDay(Day.TUESDAY, true);
		pc.setWorkingDay(Day.WEDNESDAY, true);
		pc.setWorkingDay(Day.THURSDAY, true);
		pc.setWorkingDay(Day.FRIDAY, true);
		pc.setWorkingDay(Day.SATURDAY, true);
		
		ProjectCalendarHours h1=pc.addCalendarHours(Day.SUNDAY);
		h1.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START1, ProjectCalendar.DEFAULT_END1));
	    h1.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START2, ProjectCalendar.DEFAULT_END2));
	    
	    ProjectCalendarHours h2=pc.addCalendarHours(Day.MONDAY);
		h2.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START1, ProjectCalendar.DEFAULT_END1));
	    h2.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START2, ProjectCalendar.DEFAULT_END2));
	    
	    ProjectCalendarHours h3=pc.addCalendarHours(Day.TUESDAY);
		h3.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START1, ProjectCalendar.DEFAULT_END1));
	    h3.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START2, ProjectCalendar.DEFAULT_END2));
	    
	    ProjectCalendarHours h4=pc.addCalendarHours(Day.WEDNESDAY);
		h4.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START1, ProjectCalendar.DEFAULT_END1));
	    h4.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START2, ProjectCalendar.DEFAULT_END2));
	    
	    ProjectCalendarHours h5=pc.addCalendarHours(Day.THURSDAY);
		h5.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START1, ProjectCalendar.DEFAULT_END1));
	    h5.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START2, ProjectCalendar.DEFAULT_END2));
	    
	    ProjectCalendarHours h6=pc.addCalendarHours(Day.FRIDAY);
		h6.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START1, ProjectCalendar.DEFAULT_END1));
	    h6.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START2, ProjectCalendar.DEFAULT_END2));
	    
	    ProjectCalendarHours h7=pc.addCalendarHours(Day.SATURDAY);
		h7.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START1, ProjectCalendar.DEFAULT_END1));
	    h7.addDateRange(new DateRange (ProjectCalendar.DEFAULT_START2, ProjectCalendar.DEFAULT_END2));
		
	    
	    ProjectHeader ph=file.getProjectHeader();
	    ph.setCalendarName(pc.getName());
	    	    
	    MPXWriter writer = new MPXWriter();
             //设置中文
	    writer.setLocale(Locale.CHINESE);
	    writer.write(file, filename);
	}
}

请问要怎么处理有拆分的任务啊？。