src/org/wdl/hotelSysTest/sys/servlet/RegisterServlet.java

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package org.wdl.hotelSysTest.sys.servlet;

import java.io.IOException;
import java.io.PrintWriter;

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 org.wdl.hotelSysTest.sys.service.UserService;
import org.wdl.hotelSysTest.sys.service.UserServiceImpl;
import org.wdl.hotelTest.bean.User;

/**
 * Servlet implementation class RegisterServlet
 */
@WebServlet("/sys/register.do")
public class RegisterServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public RegisterServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#service(HttpServletRequest request, HttpServletResponse response)
     */
    protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        String method = request.getParameter("method");
        String loginname = request.getParameter("loginname");

        String phone = request.getParameter("phone");
        String email = request.getParameter("email");
        String passWord = request.getParameter("passWord");

        System.out.println("method:" + method + "   loginName:" + loginname + "  phone:" + phone
                + "   email:" + email + "   passWword:" + passWord);

        UserService userService = new UserServiceImpl();
        if (method != null && !method.equals("") && method.equals("ajaxLoginName")) {
            //校验登录名是否已经存在
            //根据用户名查询用户
            User user = userService.findByLoginName(loginname);
            System.out.println("user:" + user);

            if (user != null) {
                response.setCharacterEncoding("utf-8");
                //当前用户输入的登录名已经存在
                PrintWriter printWriter = response.getWriter();
                printWriter.print("您输入的登录名已存在，请重新输入！");

                //刷新
                printWriter.flush();