java 读取 ms project by MPXJ，projectmpxj,ProjectReade

java 读取 ms project by MPXJ，projectmpxj,ProjectReade

ProjectReader reader = new MPPReader();  ProjectFile project = reader.read(Test.class.getResource("/bss4.mpp").getPath());  t.listHierarchy(project);public void listHierarchy(ProjectFile file){    for (Task task : file.getChildTasks()){    System.out.println("WBS: " + task.getWBS());       System.out.println("任务名称: " + task.getName());       System.out.println("工期: " + task.getDuration().toString());       System.out.println("计划开始时间: " + (task.getStart() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getStart())));       System.out.println("计划完成时间: " + (task.getFinish() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getFinish())));       System.out.println("实际开始时间: " + (task.getActualStart() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getActualStart())));       System.out.println("实际完成时间: " + (task.getActualFinish() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getActualFinish())));       StringBuilder resourceName = new StringBuilder();       for (ResourceAssignment assignment : task.getResourceAssignments()){          Resource resource = assignment.getResource();          if (resource != null){           resourceName.append(resource.getName()+" - " + resource.getPeakUnits() + ",");          }       }       System.out.println("资源名称: " + resourceName.toString());       listHierarchy(task, " ");    }    System.out.println();}private void listHierarchy(Task tasks, String indent){    for (Task task : tasks.getChildTasks()){    System.out.println("WBS: " + task.getWBS());       System.out.println("任务名称: " + task.getName());       System.out.println("工期: " + task.getDuration().toString());       System.out.println("计划开始时间: " + (task.getStart() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getStart())));       System.out.println("计划完成时间: " + (task.getFinish() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getFinish())));       System.out.println("实际开始时间: " + (task.getActualStart() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getActualStart())));       System.out.println("实际完成时间: " + (task.getActualFinish() == null ? "NA" : new SimpleDateFormat("yyyy-MM-dd").format(task.getActualFinish())));       StringBuilder resourceName = new StringBuilder();       for (ResourceAssignment assignment : task.getResourceAssignments()){          Resource resource = assignment.getResource();          if (resource != null){           resourceName.append(resource.getName()+" - " + assignment.getUnits()  + ",");//assignment.getUnits()获得单位百分比          }       }       System.out.println("资源名称: " + resourceName.toString());       listHierarchy(task, indent + " ");    }}//该片段来自于http://byrx.net