JSP第十三周作业
package com.fj.servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.lwk.dao.MsgDao; @WebServlet("/del") public class DelServlet extends HttpServlet { @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { // TODO Auto-generated method stub req.setCharacterEncoding("UTF-8"); resp.setCharacterEncoding("UTF-8"); doGet(req, resp); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int mid = Integer.parseInt(request.getParameter("mid")); MsgDao md = new MsgDao(); md.delMsg(mid); request.getRequestDispatcher("main.jsp").forward(request, response); } }
package com.fj.servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import com.lwk.dao.UsersDao; @WebServlet("/login") public class LoginServlet extends HttpServlet { @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { // TODO Auto-generated method stub req.setCharacterEncoding("UTF-8"); resp.setCharacterEncoding("UTF-8"); doGet(req, resp); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String uname=request.getParameter("uname"); String upwd=request.getParameter("upwd"); HttpSession session = request.getSession(); UsersDao ud=new UsersDao(); if(ud.login(uname, upwd)){ session.setAttribute("uname", uname); request.getRequestDispatcher("main.jsp").forward(request, response); }else{ response.sendRedirect("no.jsp"); } } }
package com.fj.servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.lwk.dao.UsersDao; import com.lwk.entity.Users; @WebServlet("/register") public class RegisterServlet extends HttpServlet { @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { // TODO Auto-generated method stub req.setCharacterEncoding("UTF-8"); resp.setCharacterEncoding("UTF-8"); doGet(req, resp); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String uname=request.getParameter("username"); String upwd=request.getParameter("password"); String email=request.getParameter("email"); UsersDao ud=new UsersDao(); Users u=new Users(uname,upwd,email); ud.register(u); response.sendRedirect("login.jsp"); } }
package com.fj.servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import com.lwk.dao.MsgDao; import com.lwk.entity.Msg; @WebServlet("/write") public class WriteServlet extends HttpServlet { @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { // TODO Auto-generated method stub req.setCharacterEncoding("UTF-8"); resp.setCharacterEncoding("UTF-8"); doGet(req, resp); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session = request.getSession(); String title = request.getParameter("title"); String content = request.getParameter("content"); String receiver = request.getParameter("sendto"); String sender = (String) session.getAttribute("uname"); Msg m = new Msg(); m.setSendto(receiver); m.setUname(sender); m.setTitle(title); m.setMsgcontent(content); MsgDao md = new MsgDao(); md.writeMsg(m); request.getRequestDispatcher("main.jsp").forward(request, response); } }