contactservlet.java

用java编的用到

package djr.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.*;
import djr.dao.ContactDAO;
import djr.db.DbFactory;
import djr.dto.*;

public class ContactServlet extends HttpServlet
{
	public void doGet(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException
	{

		doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException
	{
		String url = request.getServletPath();
		UserDTO userDTO = (UserDTO) request.getSession().getAttribute(
				"userinfo");
		String userID = userDTO.getUserid();

		if (url.toUpperCase().indexOf("LISTUSER") != -1)
		{
			// 联系人一览
			ContactDTO contactDTO = new ContactDTO();
			contactDTO.setUserID(userID);
			Connection conn = DbFactory.getConnection();
			List<ContactDTO> contactList = new ContactDAO().getContactList(
					contactDTO, conn);
			DbFactory.closeConn(conn);
			request.getSession().setAttribute("contacts", contactList);
			url = "userList.jsp";
		} else if (url.toUpperCase().indexOf("GROUPSEND") != -1)
		{
			// 邮件群发
			String groupMails[] = request.getParameterValues("chkGroup");
			StringBuffer sb = new StringBuffer();
			for (int i = 0; i < groupMails.length; i++)
			{
				if (i < groupMails.length - 1)
				{
					sb.append(groupMails[i] + ",");
				} else
				{
					sb.append(groupMails[i]);
				}

			}
			request.setAttribute("groupMails", sb.toString());
			url = "writemail.jsp";
		} else if (url.toUpperCase().indexOf("SELCONTACT") != -1)
		{
			// 进入发邮件时添加联系人的画面
			ContactDTO contactDTO = new ContactDTO();
			contactDTO.setUserID(userID);
			Connection conn = DbFactory.getConnection();
			List<ContactDTO> contactList = new ContactDAO().getContactList(
					contactDTO, conn);
			DbFactory.closeConn(conn);
			request.getSession().setAttribute("contacts", contactList);
			url = "userListSel.jsp";
		} 

		request.getRequestDispatcher(url).forward(request, response);
	}
}