一个基于wap1.0的web项目(图文)--实现登陆验证

1.create a new web project,named "wapDemo1".



2.create four packages,po,dao,service and action.

一个基于wap1.0的web项目(图文)--实现登陆验证_第1张图片

--
3.Create a new class User in packages po,define its attributes uname and passwd.
====
package po;

public class User {
 private String uname;
 private String passwd;
 
 public String getUname() {
  return uname;
 }
 public void setUname(String uname) {
  this.uname = uname;
 }
 public String getPasswd() {
  return passwd;
 }
 public void setPasswd(String passwd) {
  this.passwd = passwd;
 }

}
====
4.create a new detabase Db in packages, dao for demo.
====
package dao;

import java.util.ArrayList;
import java.util.List;
import po.User;

public class Db {
 private static List<User> listUser = new  ArrayList<User>();

 static{
  User u = new User();
  u.setUname("admin");
  u.setPasswd("123");
  listUser.add(u);
 }
 
 public static List<User> getListUser() {
  return listUser;
 }
 public static void setListUser(List<User> listUser) {
  Db.listUser = listUser;
 }
}
====

5.create a new class UserDao in packages dao .

===
package dao;

import java.util.ArrayList;
import java.util.List;
import po.User;

public class UserDao {
 public List<User> queryUserDao(User user){
  List<User> list = new ArrayList<User>();
  List<User> dblist = Db.getListUser();
 
  for(int i=0 ; i < dblist.size(); i++){
   User u = dblist.get(i);
   if(u.getUname().trim().equals(user.getUname().trim())
     && u.getPasswd().trim().equals(user.getPasswd().trim())){
    list.add(u);
   }
  }
  return list;
 }
}

====


6.create a new class UserServcie in packages service .

 

一个基于wap1.0的web项目(图文)--实现登陆验证_第2张图片一个基于wap1.0的web项目(图文)--实现登陆验证_第3张图片一个基于wap1.0的web项目(图文)--实现登陆验证_第4张图片一个基于wap1.0的web项目(图文)--实现登陆验证_第5张图片
====
package service;

import java.util.List;
import po.User;
import dao.UserDao;

public class UserService {
 public boolean loginUserServcie(User user){
  UserDao ud = new UserDao();
  List<User> list = ud.queryUserDao(user);
  if(list.size() < 1 || list == null){
   return false;
  }else{
   return true;
  }
  
 }
}

====
7.create a new class UserAction in packages action .

====
package action;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import po.User;
import service.UserService;

public class UserAction extends HttpServlet {

 @Override
 protected void doGet(HttpServletRequest req, HttpServletResponse resp)
   throws ServletException, IOException {
    this.doPost(req, resp);
 }

 @Override
 protected void doPost(HttpServletRequest req, HttpServletResponse resp)
   throws ServletException, IOException {
  User user = new User();
  String uname = req.getParameter("uname");
  String passwd = req.getParameter("passwd");
  
  user.setUname(uname);
   user.setPasswd(passwd);
   
  UserService us = new UserService();
  boolean flog = us.loginUserServcie(user);
  System.out.println("sh22222si");
  if (flog==true)
   resp.sendRedirect("success.wml");
  else
   resp.sendRedirect("error.wml"); 
 }
}
====

8.create a web login.jsp
====
<%@ page language="java" contentType="text/vnd.wap.wml; charset=UTF-8" %><?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>

<head>UserLogin</head>

<card id="login" title="userlogin">
<p align="center">
username:<input name="uname" type="text"/> <br />
password:<input name="passwd" type="password"/><br />

<anchor>
 <go href="login.action">
 <postfield name="uname" value="$(uname)" />
 <postfield name="passwd" value="$(passwd)" />
 </go>
</anchor>
</p>
</card>

</wml>
====
9.create a web success.wml
====
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<head>显示页面</head>
<card id="success" title="success">
<p align="center">
success.wml
</p>
</card>
</wml>
====
10.create a web error.wml
====
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<head>显示页面</head>
<card id="error" title="error">
<p align="center">
error
</p>
</card>
</wml>
====
11.configure the web.xml
==
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
 xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
 
  <servlet>
   <servlet-name>login</servlet-name>
   <servlet-class>com.wapDemo.action.UserAction</servlet-class>
  </servlet>
 
 <servlet-mapping>
   <servlet-name>login</servlet-name>
   <url-pattern>/login.action</url-pattern>
   </servlet-mapping>
 
</web-app>
====
12.测试

输入正确的admin;123

一个基于wap1.0的web项目(图文)--实现登陆验证_第6张图片

输入错误的123;123

一个基于wap1.0的web项目(图文)--实现登陆验证_第7张图片一个基于wap1.0的web项目(图文)--实现登陆验证_第8张图片


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