registerservlet.java

留言管理系统,用JAVA JSP + MVC + DAO完成

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.shx.note.servlet;

import com.shx.note.factory.DAOFactory;
import com.shx.note.vo.Person;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Administrator
 */
public class RegisterServlet extends HttpServlet {

    // <editor-fold defaultstate="collapsed" desc="HttpServlet 方法。单击左侧的 + 号以编辑代码。">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        this.doPost(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // 进行乱码处理
        request.setCharacterEncoding("UTF-8");
        String path = "login.jsp";
        // 声明一个集合类，用于保存错误信息
        List errors = new ArrayList();
        //1、接收传递的参数
        String p_name = request.getParameter("p_name");
        String p_password = request.getParameter("p_password");
        String confirm_password = request.getParameter("confirm_password");
        String sex = request.getParameter("sex");
        String email = request.getParameter("email");
        //2、将请求的内容赋值给VO类
        Person person = new Person();
        person.setP_name(p_name);
        person.setP_password(p_password);
        person.setConfirm_password(confirm_password);
        person.setSex(sex);
        person.setEmail(email);
        person.setErrors(errors);
        //验证数据是否合法

        if (person.reg_invalidate()) {
            try {
                //进行数据库验证
                DAOFactory.getPersonDAOInstance().register(person);
                //修改跳转路径
                path = "register_success.jsp";
            } catch (Exception ex) {
                Logger.getLogger(RegisterServlet.class.getName()).log(Level.SEVERE, null, ex);
            }
        } else {
            //保存错误信息
            request.setAttribute("errors", errors);
            request.setAttribute("person", person);
            path = "register.jsp";
        }
        // 进行跳转
        request.getRequestDispatcher(path).forward(request, response);
    }
}