throws IOException {
String projectOwner = req.getParameter("ownerId");
String projectName = req.getParameter("projectName");
String pageName = req.getParameter("pageName");
DavinciProject project = new DavinciProject();
project.setOwnerId(projectOwner);
//project.setProjectName(projectName);
// FIXME Currently, there is not project concept, use the default value.
// project.setProjectName(projectName);
List<Comment> commList = ReviewCacheManager.$.getCommentsByPageName(project, pageName);
responseString = commList.toString();