Java tutorial
package report; import java.io.IOException; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.ArrayList; import java.util.List; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class SOSearch extends HttpServlet { private final Log log = LogFactory.getLog(getClass()); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); HttpSession session = request.getSession(false); if (session != null && session.getAttribute("reseller") != null) { String reseller = (String) session.getAttribute("reseller"); log.info("Sales Order Search " + request.getParameter("sonumber") + " for reseller " + session.getAttribute("reseller")); List<LicenseData> searchResult = new ArrayList<LicenseData>(); Statement pst = null; Connection con = getConnectiontoDB(); session.setAttribute("sonumber", request.getParameter("sonumber")); StringBuffer sql = new StringBuffer(); sql.append( "select distinct o.orderkey,ib.salesordernumber,ib.item,so_header.end_user,ib.serialnumber,"); sql.append("so_header.po_check_number "); sql.append( " from ns.so_header so_header inner join ns.ib ib on ib.salesordernumber =so_header.so_number"); sql.append(" inner join orderkey_information o on so_header.entitlement_key=o.orderkey "); sql.append("where (ib.producttype='AP' or ib.producttype='License - AP') and so_header.so_number='" + request.getParameter("sonumber") + "' "); if (reseller != null && !reseller.equalsIgnoreCase("admin")) sql.append(" and so_header.reseller ILIKE '%" + session.getAttribute("reseller") + "%'"); try { pst = con.createStatement(); log.info("Sales Order Search " + sql); session.setAttribute("sovalue", request.getParameter("sonumber")); ResultSet rs = pst.executeQuery(sql.toString()); while (rs.next()) { LicenseData data = new LicenseData(); data.setEntitlementKey(rs.getString(1)); data.setSoNumbber(rs.getString(2)); data.setSku(rs.getString(3)); data.setEndUser(rs.getString(4)); data.setSerialNumber(rs.getString(5)); data.setPoNumber(rs.getString(6)); searchResult.add(data); } con.close(); session.setAttribute("solist", searchResult); String nextJSP = "/viewSOSearchResult.jsp"; RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP); dispatcher.forward(request, response); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } else { log.info("Sales Order Search : Reseller Blank "); String nextJSP = "/login.jsp"; RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(nextJSP); dispatcher.forward(request, response); } } private Connection getConnectiontoDB() { Connection con = null; /*String url = "jdbc:postgresql://10.16.194.69:5432/ls"; String user = "test"; String password = "aerohive123!";*/ String url = "jdbc:postgresql://localhost:5432/ls"; String user = "root"; String password = "test"; try { Class.forName("org.postgresql.Driver"); con = DriverManager.getConnection(url, user, password); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return con; } }