UserInfoServlet.class

package com.controller;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.model.bean.UserInfo;
import com.model.service.UserInfoService;

/**

• Servlet implementation class UserInfoServlet
  */
  public class UserInfoServlet extends HttpServlet {
  private static final long serialVersionUID = 1L;

  /**

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

  /**

  • @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
    */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

  }

  /**

  • @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
    */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    request.setCharacterEncoding("utf-8");
    System.out.println("进入dopost方法");
    UserInfo user=new UserInfo();
    getParam(request,user);
    String error=validate(user);
    if("".equals(error)){
    //校验通过
    try {
    //校验用户名是否重复
    boolean flag=UserInfoService.getInstance().valiadateUsername(user); //返回true即重复
    if(flag){ //用户名重复 返回该页面 即请求转发
    //请求转发的实现方式
    RequestDispatcher rd=request.getRequestDispatcher("User.html");
    rd.forward(request, response);
    }else{//用户名不重复 跳转页面 即重定向方式
    UserInfoService.getInstance().saveUser(user);
    //重定向的方式跳转到result.html页面
    response.sendRedirect("login.html");
    }
    } catch (Exception e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
    }else{
    //校验不通过
    //请求转发实现
    RequestDispatcher rd=request.getRequestDispatcher("User.html");
    rd.forward(request, response);
    }

}

private String validate(UserInfo user) {
    StringBuffer sbf=new StringBuffer("");
    //用户名不能为空
    if(user.getUsername()==null||"".equals(user.getUsername())){
        sbf.append("用户名不为空");
    }
    
    if(user.getPhone()!=null&&user.getPhone().length()!=11){
        sbf.append("电话号码必须是11位");
    }
    return sbf.toString();
}

private void getParam(HttpServletRequest request, UserInfo user) {
    String username=request.getParameter("username");
    String password=request.getParameter("password");
    String newpassword=request.getParameter("newpassword");
    String name=request.getParameter("name");
    String email=request.getParameter("email");
    String phone=request.getParameter("phone");
    String role=request.getParameter("role");
    String skin=request.getParameter("skin");
    
    user.setUsername(username);
    user.setPassword(password);
    user.setNewpassword(newpassword);
    user.setName(name);
    user.setEmail(email);
    user.setPhone(phone);
    user.setRole(role);
    user.setSkin(skin);
    
}

}