/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.ownBlog.db;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.ResultSet;
/**
*
* @author Administrator
*/
public class LoginServerlet extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
/*
* 设置获取页面传递的值为汉字字符集，与传递的jsp页面的字符集无关
*/
request.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
String username=request.getParameter("username");
String userpwd=request.getParameter("userpwd");
String commander=null;
boolean valid=false;
try {
/* TODO output your page here
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet LoginServerlet</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet LoginServerlet at " + request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
*/
// out.println(username);
// out.println(userpwd);
/*
* 判断输入数据是否完整
*/
if(username==""||username==null){
out.print("请输入用户名"+"<br/>");
}
if(userpwd==""||userpwd==null){
out.print("请输入密码"+"<br/>");
}
/*
* 判断输入的用户名和密码是否和数据库中的匹配
*/
Conn con=new Conn();
ResultSet rs=null;
commander="select * from userInfo where userName='"+username+"'";
rs=con.executeQuery(commander);
while(rs.next()){
String swap=rs.getString("userpwd");
if(swap.equals(userpwd)){
valid=true;
}
}
if(valid==true){
out.println(""+username+"您好，您已经成功登陆本网站"+"<br/>");
}
else{
out.println("您输入的用户名或者密码出现错误，请确认后重新输入");
response.setHeader("refresh", "3;url=index.jsp");
}
//out.print(commander);
}catch(Exception e){out.println("页面出错"+e);} finally {
out.close();
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* 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 {
processRequest(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 {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
自己制作的jsp登陆注册模板
4星 · 超过85%的资源 需积分: 50 141 浏览量
2011-07-10
23:00:01
上传
评论 3
收藏 20KB RAR 举报 
登陆和注册模板.rar （7个子文件） 
登陆和注册模板 jsp+serverlet com.ownBlog.db WEB-INF 
web.xml 780B dbConn.properties 250B LoginServerlet.java 4KB Conn.java 2KB index.jsp 1KB ownBlog.accdb 400KB Login.css 817B
- 1
- 2
- 3
前往页