标签：userName web java String request nbsp 文章 import public
这个是基于Java的登陆进行的优化和增加的代码的页面。并且还加入了Java web 的servlet用法
- longin登陆页面的代码：
点击查看代码
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page language="java" import="java.util.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>员工登录入口</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<style type="text/css">
h1{
text-align:center;
padding-top:40px;
}
body{
width:1100px;
text-align:center;
margin-left:auto;
margin-right:auto;
}
.div_01{
background-color:pink;
border:2px soild #aaaaaa;
width:1100px;
height:100px;
font-size:20pt;
line-height:100%;
}
</style>
</head>
<body>
<div class="div_01">
<h1>员工登录入口</h1>
</div>
<div class="div_02">
<form action="${pageContext.request.contextPath}/LoginServlet" method="post">
<br><br><br>
用户名:<input type="text" name="userName" style="background-color:Aquamarine;"><br><br>
密 码: <input type="password" name="userPwd" style="background-color:Aquamarine;"><br><br>
<input type="submit" value="登录" >
<input type="reset" value="重置"><br>
</form>
</div>
</body>
</html>
点击查看代码
package cn.cszyedu.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import cn.cszyedu.po.User;
/**
* Servlet implementation class LoginServlet
*/
@WebServlet(description="/LoginServlet",urlPatterns={"/LoginServlet"})
@SuppressWarnings("unused")
public class LoginServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
doPost(request,response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
String userName=request.getParameter("userName");
String userPwd=request.getParameter("userPwd");
HttpSession session=request.getSession();
if(userName==null||userPwd==null){
request.setAttribute("message","用户名或密码为空");
response.sendRedirect(request.getContextPath()+"login.jsp");
}else if(userName.equals("lmy" )&& userPwd.equals("123")){
session.setAttribute("userName", userName);
session.setAttribute("userPwd",userPwd);
request.getRequestDispatcher("user2.jsp").forward(request, response);
}else{
//request.setAttribute("message","用户名或密码错误");
response.sendRedirect(request.getContextPath()+"login.jsp");
}
}
}
点击查看代码
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page language="java" import="java.util.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="pagema" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<title>员工之窗</title>
<style>
h1{
text-align:center;
padding-top:40px;
}
.div_01{
background-color:pink;
border:2px soild #aaaaaa;
width:1100px;
height:100px;
font-size:20pt;
line-height:100%;
}
.div_02{
text-align:left;
line-height:20pt;
padding-top:10px;
padding-borrom:10px;
font-weight:bold;
border-bottom:soild #777777 2px;;
}
.div_03{
padding-top:10px;
}
.span_01{
color:red;
}
#span_02{
width:300px;
height:40px;
background-color:red;
}
#th_01{
background-color:#22ccff;
width:140px;
height:60px;
}
a{
font-family:宋体;
text-align:left;
text-frcoration:underline;
TEXT-DECORATION:none;
}
#H{
margin-left:500px;
}
</style>
</head>
<body>
<div class="div_01">
<h1>员工之窗</h1>
</div>
<jsp:useBean id="user" class="cn.cszyedu.po.User" scope="session"></jsp:useBean>
<jsp:useBean id="date" class="java.util.Date"/>
<jsp:setProperty name="user" property="*"/>
<div class="div_02">
<span class="span_01"><jsp:getProperty name="user" property="userName"/></span>欢迎来到员工之窗
<br/>
当前时间:<div id="span_02"><%= date %></div>
<hr>
</div>
<div class="div_03">
<table border="1" cellspacing="0" align="center">
<tr>
<th id="th_01">文章编号</th>
<th id="th_01">文章类型</th>
<th id="th_01">标题</th>
<th id="th_01">作者</th>
<th id="th_01">发表日期</th>
</tr>
</table><br>
<div id="H">
<a href="${pagrContext.request.contextPath}/lmy-sy4/publish.jsp">【发表文章】</a>
<a href="${pageContext.request.contextPath}/out.jsp">【退出登录】</a>
<a href="${pageContext.request.contextPath}/login.jsp">【返回首页】</a></div>
</div>
</div>
</body>
</html>
点击查看代码
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style>
table{
border-color:Aquamarine;
}
.td_01{
width:500px;
height:50px;
text-align:center;
font-weight:bold;
font-size:20pt;
background-color:pink;
color:#222222;
}
.td_02{
width:180px;
text-align:center;
}
td_03{
height:100px;
text-align:center;
}
</style>
</head>
<body>
<form action="/serlvet/PublishServlet" method="post">
<table border="1" cellspacing="0" align="center">
<tr>
<td colspan="2" class="td_01">发表文章</td>
</tr>
<tr>
<td class="td_02">文章类型:</td>
<td>
<select name="articType">
<option value="程序设计">程序设计</option>
<option value="军事">军事</option>
<option value="艺术设计">艺术设计</option>
<option value="传统文化">传统文化</option>
<option value="篮球体育">篮球体育</option>
<option value="世界地图">世界地图</option>
</select>
</td>
</tr>
<tr>
<td class="td_02">文章标题:</td>
<td>
<input type="text" name="articTitle"/>
</td>
</tr>
<tr>
<td class="td_03">文章内容</td>
<td>
<textarea rows="10" cols="41" name="articContent"></textarea>
</td>
</tr>
<tr>
<td class="td_02">您已发表的文章数:</td>
<td>${sessionScope.count}篇</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" value="确定发表">
<input type="button" onclick="out()" value="返回首页">
<input type="button" onclick="back()" value="返回用户界面">
</td>
</tr>
</table>
</form>
<script type="text/javascript">
function out(){
window.location.href="../experiment/login.jsp";
}
//var path=${pageContext.request.contextPath};
function back(){
window.location.href="./user2.jsp";
}
</script>
</body>
</html>
点击查看代码
package cn.cszyedu.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.util.Date;
import cn.cszyedu.po.Articles;
/**
* Servlet implementation class PublishServlet
*/
@WebServlet(description="/PublishServlet",urlPatterns={"/PublishServlet"})
public class PublishServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doPost(request,response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
request.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=UTF-8");
//获取参数
String articType=request.getParameter("articType");
String articTitle=request.getParameter("atricTitle");
String articContent=request.getParameter("articContent");
//User user=(User) request.getSession().getAttribute("user");
//String articAuthor= user.getUserName();
if(articTitle==null||articTitle==""||articContent==null||articContent==""){
request.setAttribute("message","文章标题和文章内容不能为空");
request.getRequestDispatcher("new_experiment/publish.jsp").forward(request,response);
}else{
Articles article=new Articles(null,articType,articTitle,articContent,
request.getSession().getAttribute("userName").toString(),new Date());
request.setAttribute("article",article);
request.getRequestDispatcher("new_experiment/user2.jsp").forward(request,response);
//response.sendRedirect(request.getContextPath()+"jsp/user.jsp");
}
//System.out.println(atricType);
}
}
点击查看代码
package cn.cszyedu.po;
public class User {
private String userName;
private String userPwd;
private String eMail;
private String telephone;
private Integer loginTimes;
public User(){
super();
}
public User(String userName,String userPwd,String eMail,
String telephone,Integer loginTimes){
super();
this.userName=userName;
this.userPwd=userPwd;
this.eMail=eMail;
this.telephone=telephone;
this.loginTimes=loginTimes;
}
public String getUserName(){
return userName;
}
public void setUserName(String userName){
this.userName=userName;
}
public String geteMail(){
return eMail;
}
public void seteMail(String eMail){
this.eMail=eMail;
}
public String getTelephone(){
return telephone;
}
public void setTelephone(String telephone){
this.telephone=telephone;
}
public Integer getLoginTimes(){
return loginTimes;
}
public void setLoginTimes(Integer loginTimes){
this.loginTimes=loginTimes;
}
@Override
public String toString(){
return "User[userName="+userName+",userPwd="+userPwd+",eMail="+eMail+","
+ "telephone="+telephone+",loginTimes="+loginTimes+"]";
}
}
7.效果展示：
标签：userName,web,java,String,request,nbsp,文章,import,public 来源： https://www.cnblogs.com/fzlgxy085/p/16486844.html
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