<%@page import="java.net.URLEncoder"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.sql.*" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<
fmt:requestencoding
value="UTF-8">
fmt:requestencoding
>
<
meta
http-equiv="Content-Type" content="text/html; charset=UTF-8">
<
title
>验证页面
title
>
<%
//获取登录时提交的用户名密码,web
String id = request.getParameter("username1");
String pwd = request.getParameter("password1");
request.setAttribute("username1",id);
/* 解决问题，先要研究问题，URL传中文参数为什么会出现乱码？
原因：Http请求传输时将url以ISO-8859-1编码，服务器收到字节流后默认会以ISO-8859-1编码来解码成字符流（造成中文乱码）
解决办法：我们需要把request.getParameter(“参数名”)获取到的字符串先用ISO-8859-1编码成字节流，然后再将其用utf-8解码成字符流 */
String driver = "com.mysql.jdbc.Driver";
//URL指向要访问的数据库名test1
String url = "jdbc:mysql://127.0.0.1:3306/javaweb?characterEncoding=utf8&useSSL=false";
//MySQL配置时的用户名
String user = "root";
//Java连接MySQL配置时的密码
String password = "root";
try {
//1 加载驱动程序
Class.forName(driver);
//2 连接数据库
Connection conn = DriverManager.getConnection(url, user, password);
//3 用来执行SQL语句
Statement statement = conn.createStatement();
//要执行的SQL语句
String sql = "select * from login";
ResultSet rs = statement.executeQuery(sql);
String u = null;
String p = null;
while(rs.next()) {
u = rs.getString("userName");
p = rs.getString("passWord");
if(u.equals(id) && p.equals(pwd)) {
String index="index.jsp?username1="+URLEncoder.encode(id,"utf-8");
out.println("登陆成功！5s后跳转跳转到<
a
href="+index+">首页
a
>");
response.addHeader ("refresh", "5;URL=index.jsp?username1="+URLEncoder.encode(id,"utf-8"));
//response.sendRedirect("index.jsp?username1="+URLEncoder.encode(id,"utf-8"));
rs.close();
conn.close();
return;
}
}
rs.close();
conn.close();
out.println("用户名或密码错误！");
} catch (ClassNotFoundException e) {
System.out.println("Sorry,can`t find the Driver!");
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
%>
<
form
>
<
input
type="hidden" name="username1" value="${param.username1}">
<
input
type="button" value="重新登陆" οnclick="this.form.action='login.jsp';this.form.submit();">
form
>
