caselist.java

基于java的医院门诊管理系统

package crqs.servlets.doctor;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.ArrayList;

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 crqs.dboperation.Doctor;
import crqs.exceptions.RecordsNotExistException;
import crqs.util.NavBar;
import crqs.util.Page;

public class CaseList extends HttpServlet {

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		HttpSession hs = request.getSession();
		String message = null;
		String patID = request.getParameter("patID");
		Doctor dctr = (Doctor) hs.getAttribute("validUser");
		NavBar nb=(NavBar)hs.getAttribute("navbar");
		try {
			Page col = dctr.getCaseList(patID);
			String index = request.getParameter("index");
			ArrayList results = null;
			if (index == null)
				results = col.gotoFirst();
			else
				results = col.indexof(Integer.parseInt(index));
			nb.to("<a href='CaseList?patID="+patID+"' class='left'>病历列表</a>");
			request.setAttribute("results", results);
			request.setAttribute("count", new Integer(col.getPages()));
			request.setAttribute("current", new Integer(col.getCurrentPage()));
			request.getRequestDispatcher("caselist.jsp").forward(request,
					response);
			return;
		} catch (SQLException e) {
			message = "数据库出错!";
		} catch (RecordsNotExistException e) {
			request.setAttribute("count", new Integer(0));
			nb.to("<a href='CaseList?patID="+patID+"' class='left'>病历列表</a>");
			request.getRequestDispatcher("caselist.jsp").forward(request,
					response);
			return;
		}
		hs.setAttribute("message", message);
		hs.setAttribute("url", nb.generate());
		response.sendRedirect(response.encodeRedirectURL("/CRQS/message.jsp"));
	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doGet(request, response);
	}

}