📄 registerservlet.java
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package Servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Map;
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 RegisterServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public RegisterServlet() {
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();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the GET method");
out.println(" </BODY>");
out.println("</HTML>");
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 {
HttpSession session = request.getSession();
boolean flag = false;
String errormsg = null;
Bean.UserBean user = new Bean.UserBean();
// Map usermap = request.getParameterMap();
// BeanUtils.populate(user,usermap);
user.setUsername(request.getParameter("username"));
user.setPassword(request.getParameter("password"));
user.setEmail(request.getParameter("email"));
user.setGender(request.getParameter("gender"));
user.setTelphone(request.getParameter("telphone"));
if(request.getParameter("password").equals(request.getParameter("confirmpw"))&&user.getUsername().length()!= 0)
{System.out.println("have enter if1");
Bean.LogInQuary quary = new Bean.LogInQuary();
if(!quary.Query(user.getUsername()))
{
//*********************把信息插入数据库****************
new Bean.Insert().Insert(user);
flag = true;
errormsg = null;
// response.sendRedirect("/BookShop/RegisterSucceed.jsp");
// request.getRequestDispatcher("/RegisterSucceed.jsp").forward(request, response);
}
else
{
errormsg = "Sorry! The name you want to registed has been registed!!! <br> Please choose anthor name!";
}
}
else
{
errormsg = "Sorry! The Infromation is not compelate!!!";
}
if(flag == true)
{
session.setAttribute("user",request.getParameter("username"));
request.getRequestDispatcher("/LogInSucceed.jsp").forward(request, response);
}
else
{
request.setAttribute("errormsg", errormsg);//System.out.println(errormsg);
request.getRequestDispatcher("/Register.jsp").forward(request, response);
}
// request.getRequestDispatcher("/RegisterError.jsp").forward(request, response);
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
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