控制层代码改用为servlet实现
dologin.java
1 package doservlet;
2
3 import java.io.IOException;
4 import javax.servlet.ServletException;
5 import javax.servlet.annotation.WebServlet;
6 import javax.servlet.http.HttpServlet;
7 import javax.servlet.http.HttpServletRequest;
8 import javax.servlet.http.HttpServletResponse;
9
10 import dao.UsersDao;
11
12 /**
13 * Servlet implementation class dologin
14 */
15 @WebServlet("/dologin")
16 public class dologin extends HttpServlet {
17 private static final long serialVersionUID = 1L;
18
19 /**
20 * @see HttpServlet#HttpServlet()
21 */
22 public dologin() {
23 super();
24 // TODO Auto-generated constructor stub
25 }
26
27 /**
28 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
29 */
30 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
31 // TODO Auto-generated method stub
32 doPost(request, response);
33 }
34
35 /**
36 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
37 */
38 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
39 // TODO Auto-generated method stub
40 String uname = request.getParameter("uname");
41 String upwd = request.getParameter("upwd");
42 UsersDao ud=new UsersDao();
43 if(ud.login(uname, upwd)){
44 request.getSession().setAttribute("uname", uname);
45 request.getRequestDispatcher("main.jsp").forward(request, response);
46 }else{
47 response.getWriter().print("登陆失败，即将跳回登陆页.....");
48 response.setHeader("refresh", "5;url=login.jsp");
49 }
50 }
51
52 }
doreg.java
1 package doservlet;
2
3 import java.io.IOException;
4
5 import javax.servlet.ServletException;
6 import javax.servlet.annotation.WebServlet;
7 import javax.servlet.http.HttpServlet;
8 import javax.servlet.http.HttpServletRequest;
9 import javax.servlet.http.HttpServletResponse;
10
11 import dao.UsersDao;
12
13 /**
14 * Servlet implementation class doreg
15 */
16 @WebServlet("/doreg")
17 public class doreg extends HttpServlet {
18 private static final long serialVersionUID = 1L;
19
20 /**
21 * @see HttpServlet#HttpServlet()
22 */
23 public doreg() {
24 super();
25 // TODO Auto-generated constructor stub
26 }
27
28 /**
29 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
30 */
31 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
32 // TODO Auto-generated method stub
33 doPost(request, response);
34 }
35
36 /**
37 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
38 */
39 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
40 // TODO Auto-generated method stub
41 String uname = request.getParameter("uname");
42 String upwd = request.getParameter("upwd");
43 UsersDao ud=new UsersDao();
44 ud.reg(uname, upwd);
45 request.getRequestDispatcher("login.jsp").forward(request, response);
46 }
47
48 }
dodelete.java
1 package doservlet;
2
3 import java.io.IOException;
4
5 import javax.servlet.ServletException;
6 import javax.servlet.annotation.WebServlet;
7 import javax.servlet.http.HttpServlet;
8 import javax.servlet.http.HttpServletRequest;
9 import javax.servlet.http.HttpServletResponse;
10
11 import dao.MsgDao;
12
13 /**
14 * Servlet implementation class dodelete
15 */
16 @WebServlet("/dodelete")
17 public class dodelete extends HttpServlet {
18 private static final long serialVersionUID = 1L;
19
20 /**
21 * @see HttpServlet#HttpServlet()
22 */
23 public dodelete() {
24 super();
25 // TODO Auto-generated constructor stub
26 }
27
28 /**
29 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
30 */
31 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
32 // TODO Auto-generated method stub
33 doPost(request, response);
34 }
35
36 /**
37 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
38 */
39 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
40 // TODO Auto-generated method stub
41 int id=Integer.parseInt(request.getParameter("id"));
42 MsgDao md=new MsgDao();
43 md.delMail(id);
44 response.sendRedirect("main.jsp");
45 }
46
47 }
dowrite.java
1 package doservlet;
2
3 import java.io.IOException;
4
5 import javax.servlet.ServletException;
6 import javax.servlet.annotation.WebServlet;
7 import javax.servlet.http.HttpServlet;
8 import javax.servlet.http.HttpServletRequest;
9 import javax.servlet.http.HttpServletResponse;
10
11 import dao.MsgDao;
12 import entity.Msg;
13
14 /**
15 * Servlet implementation class dowrite
16 */
17 @WebServlet("/dowrite")
18 public class dowrite extends HttpServlet {
19 private static final long serialVersionUID = 1L;
20
21 /**
22 * @see HttpServlet#HttpServlet()
23 */
24 public dowrite() {
25 super();
26 // TODO Auto-generated constructor stub
27 }
28
29 /**
30 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
31 */
32 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
33 // TODO Auto-generated method stub
34 doPost(request, response);
35 }
36
37 /**
38 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
39 */
40 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
41 // TODO Auto-generated method stub
42 request.setCharacterEncoding("utf-8");
43 String uname=(String)request.getSession().getAttribute("uname");
44 String addressee=request.getParameter("addressee");
45 String title=request.getParameter("title");
46 String content=request.getParameter("content");
47
48 Msg m=new Msg();
49 m.setContent(content);
50 m.setSender(uname);
51 m.setAddressee(addressee);
52 m.setTitle(title);
53
54 MsgDao md=new MsgDao();
55 md.addMsg(m);
56
57 response.getWriter().print("发送成功.....");
58 response.setHeader("refresh", "5;url=main.jsp");
59 }
60
61 }
