checkpoweraction.java

公告管理系统

package nm;

import java.util.Vector;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sql.DataSource;


import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

public final class CheckPowerAction extends Action {
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {

		String functiontype = request.getParameter("functiontype");

		ServletContext context = servlet.getServletContext();
		DataSource dataSource = (DataSource) context
				.getAttribute(Constants.DATASOURCE_KEY);
		DB db = new DB(dataSource);

		HttpSession session = request.getSession();
		ActionMessages errors = new ActionMessages();
		String pageForward = "ToErrorPage";
		User loginuser = (User) session.getAttribute(Constants.LOGIN_USER_KEY);

		if (functiontype.equals("newuser")) {
			if (loginuser.getGrade().equals("admin")) {
				pageForward = "ToNewUser";
			} else {
				errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
						"error.power.newuser.notadmin"));
				if (!errors.isEmpty()) {
				//	saveErrors(request, errors);
					this.saveMessages(request, errors);
				}
			}
		} else if (functiontype.equals("useredit")) {
			if (loginuser.getGrade().equals("admin")) {
				String username = request.getParameter("username");
				User curUser = (User) User.search(db, username).get(0);
				session.setAttribute(Constants.CUR_USER_KEY, curUser);
				pageForward = "ToUserEdit";
			} else {
				errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
						"error.power.edit.notadmin"));
				if (!errors.isEmpty()) {
//					saveErrors(request, errors);
					this.saveMessages(request, errors);
				}
			}
		} else if (functiontype.equals("userdelete")) {
			if (loginuser.getGrade().equals("admin")) {
				String username = request.getParameter("username");
				if (User.delete(db, username)) {
					Vector users = new Vector();
					users = User.search(db, "");
					session.setAttribute(Constants.USER_LIST_KEY, users);
					pageForward = "ToUserList";
				} else {
					errors.add(ActionMessages.GLOBAL_MESSAGE,
							new ActionMessage("error.delete.failed"));
					if (!errors.isEmpty()) {
//						saveErrors(request, errors);
						this.saveMessages(request, errors);
					}
				}
			} else {
				errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
						"error.power.delete.notadmin"));
				if (!errors.isEmpty()) {
//					saveErrors(request, errors);
					this.saveMessages(request, errors);
				}
			}
		} else if (functiontype.equals("noticedelete")) {
			String id = request.getParameter("id");
			if (loginuser.getGrade().equals("admin")) {
				Notice bean = new Notice();
				if (id != null) {
					bean.deleteByID(id);
				}
				pageForward = "ToNoticeList";
			} else {
				errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
						"error.power.noticedelete.notadmin"));
				if (!errors.isEmpty()) {
//					saveErrors(request, errors);
					this.saveMessages(request, errors);
				}
			}
		} else if (functiontype.equals("noticeedit")) {
			if (loginuser.getGrade().equals("admin")) {
				pageForward = "ToNoticeModify";
			} else {
				errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
						"error.power.noticemodify.notadmin"));
				if (!errors.isEmpty()) {
//					saveErrors(request, errors);
					this.saveMessages(request, errors);
				}
			}
		}else if (functiontype.equals("newnotice")) {
			if (loginuser.getGrade().equals("admin")) {
				pageForward = "ToNewNotice";
			} else {
				errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
						"error.power.newnotice.notadmin"));
				if (!errors.isEmpty()) {
//					saveErrors(request, errors);
					this.saveMessages(request, errors);
				}
			}
		}

		db.close();
		return (mapping.findForward(pageForward));
	}

}