基于Jsp的QQ邮箱.rar

package com.servlet; import com.dao.UserDao; import com.dao.impl.UserDaoimpl; import com.entity.LetterBox; import com.entity.User; import com.service.LetterService; import com.service.impl.LetterServiceimpl; 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 java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; @WebServlet("/LetterAddServlet") public class LetterAddServlet extends HttpServlet { protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session = request.getSession(); UserDao userDao=new UserDaoimpl(); // 获取请求参数信息 String recipients = new String( request.getParameter("recipients").getBytes("ISO-8859-1"),"utf-8"); String theme = new String( request.getParameter("theme").getBytes("ISO-8859-1"),"utf-8"); String contect = new String(request.getParameter("contect").getBytes("ISO-8859-1"),"utf-8"); String addresser = new String(request.getParameter("addresser").getBytes("ISO-8859-1"),"utf-8"); // 参数信息为空，则发送失败 发件人与用户名不匹配 User user =(User) session.getAttribute("user"); if(recipients.equals("")||theme.equals("")||contect.equals("")||addresser.equals("")||!user.getUserName().equals(addresser)){ request.setAttribute("error",""); request.getRequestDispatcher("send_error.jsp").forward(request,response); return; } // 收件人必须为存在的用户 User user1=new User(); user1.setUserName(recipients); User selectone = userDao.selectone(user1); if(selectone==null){ request.setAttribute("transituri","write.jsp"); request.setAttribute("transitinfo","收件人不存在，请重新填写"); request.getRequestDispatcher("send_error.jsp").forward(request,response); return; } Date date=new Date();//获取当前时间 SimpleDateFormat dateFormat=new SimpleDateFormat("yyyy-MM-ddhh:mm:ss"); String time=(String)dateFormat.format(date); // 获取LetterBox对象，并赋值 LetterBox le=new LetterBox(); le.setRecipients(recipients); le.setTheme(theme); le.setContect(contect); le.setAddresser(addresser); le.setTime(time); // 调用LetterServiceImpl对象，使用相应方法 LetterService letterAddServiceimpl=new LetterServiceimpl(); int res=letterAddServiceimpl.add(le); if(res>0){ request.getRequestDispatcher("send_success.jsp").forward(request,response); }else{ request.getRequestDispatcher("send_error.jsp").forward(request,response); } } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } }