Java tutorial
/* MetaDB: A Distributed Metadata Collection Tool Copyright 2011, Lafayette College, Eric Luhrs, Haruki Yamaguchi, Long Ho. This file is part of MetaDB. MetaDB is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. MetaDB is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with MetaDB. If not, see <http://www.gnu.org/licenses/>. */ package edu.lafayette.metadb.web.permission; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.json.JSONArray; import edu.lafayette.metadb.model.permission.Permission; import edu.lafayette.metadb.model.permission.PermissionManDAO; import edu.lafayette.metadb.model.projects.ProjectsDAO; /** * Servlet implementation class ShowProjectPermission */ public class ShowProjectPermission extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub PrintWriter out = response.getWriter(); String userName = request.getParameter("username"); List<String> projectList = ProjectsDAO.getProjectList(); JSONArray list = new JSONArray(); // String bigList = ""; ArrayList<Permission> permissionList = PermissionManDAO.getAllProjectPermission(userName); if (permissionList != null && !permissionList.isEmpty()) for (Permission p : permissionList) projectList.remove(p.getProjectName()); for (String s : projectList) list.put(s); // bigList += "<option name='" + s + "'>" + s + "</option>"; out.print(list); out.flush(); } }