deluserverlet.java

用ssh实现的简单通讯录+需要数据库

package serverlets;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class deluserverlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * Constructor of the object.
	 */
	public deluserverlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * 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 {
        
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
       String name=request.getParameter("yhm");
       String pass=request.getParameter("mm");
		po.Userinfo user=new po.Userinfo();
		user.setUname(name);
		user.setUpass(pass);
		Dao.userDao ud=new Dao.userDao();
		List list=ud.getserch(user);
		if(list.isEmpty()){
			HttpSession session=request.getSession();
			session.setAttribute("msg", "用户名密码错误");
			 response.sendRedirect("index.jsp");
		}else{
			//out.print(list.get(0));
			HttpSession session=request.getSession();
			session.setAttribute("user", name);
			session.removeAttribute("msg");
			 session.setAttribute("uid", list.get(0));
		     response.sendRedirect("index1.jsp");
		}
		out.flush();
		out.close();
	}

	/**
	 * 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);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}