userservlet.java

jiava中简单的基础的jsp增删改查适合处学者

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

import db.DBConnetion;
import java.io.*;
import java.net.*;

import javax.servlet.*;
import javax.servlet.http.*;

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

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        request.setCharacterEncoding("utf-8");
        try {
            String name = request.getParameter("name");
            String pwd = request.getParameter("pwd");
            String userName = request.getParameter("userName");
            String [] brand = request.getParameterValues("brand");
            String email = request.getParameter("email");
            String like = request.getParameter("like");
            String address = request.getParameter("address");

            if (name.equals("") || pwd.equals("") || userName.equals("")){

                out.println("请输入用户名。。密码。。真是姓名");
                out.println("<a href='UserInfo.jsp'>返回</a>");
            } else {

                
                
                
                
                db.DBConnetion conn = new DBConnetion();
                String sql = "insert into UserInfo values('" + name + "','" + pwd + "','" + userName + "','" + email + "','" + like + "','" + address + "')";
                conn.updateQeary(sql);
                out.println("注册成功～～～～～～～～～～～～"+"<br>");
                 out.println("<a href='index.jsp'>登录</a>");
            }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet 方法。单击左侧的 + 号以编缉代码。">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}