前提: eclipse中有net.java.amateras插件
boolean fig = OpenStrategy.activateOnOpen();
IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
IFile file = root.getFile(new Path(fileName));// sequence 文件路径
IDE.openEditor(Activator.getDefault().getWorkbench().getActiveWorkbenchWindow()
.getActivePage(), file, fig);