一個基於wap1.0的web項目(圖文)

一個基於wap1.0的web項目(圖文)–實現登陸驗證

最後更新：2018-12-05 來源：互聯網

上載者：User

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

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

--
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 .

====
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 />

</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>顯示頁面</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>顯示頁面</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.測試

輸入正確的admin；123

輸入錯誤的123；123

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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一個基於wap1.0的web項目(圖文)–實現登陸驗證

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