WebProject
UserBean.java：Class
package com.neusoft.beans;
public class UserBean {
private String id;
private String name;
private String password;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
LoginDao.java：Class
package com.neusoft.dao;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import com.neusoft.beans.UserBean;
import com.neusoft.utils.DbCon;
public class LoginDao {
public UserBean Login(String name, String password) {
Connection con = DbCon.con();
ResultSet rs = null;
UserBean ub = null;
try {
Statement st = con.createStatement();
String sql = "select * from USERTEST where username='"
+ name + "' and password = " + password;
System.out.println(sql);
rs = st.executeQuery(sql);
while (rs.next()) {
ub = new UserBean();
ub.setId(rs.getString("id"));
ub.setName(rs.getString("username"));
ub.setPassword(rs.getString("password"));
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ub;
}
}
LoginServlet.java：Servlet
package com.neusoft.services;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.neusoft.beans.UserBean;
import com.neusoft.dao.LoginDao;
public class LoginServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public LoginServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// 可以解决post提交方式，get搞不定
// request.setCharacterEncoding("gbk");
// 单纯的写入java业务逻辑代码就可以
// this.doPost(request, response);
System.out.println("我经过了servlet跳转");
// 验证用户名和密码的合法性
UserBean ub = null;
LoginDao l = new LoginDao();
// 转码
String name = new String(request.getParameter("username").getBytes(
"iso-8859-1"), "gbk");
// String name = request.getParameter("username");
String password = request.getParameter("password");
System.out.println(name);
System.out.println(password);
ub = l.Login(name, password);
if (ub != null) {
HttpSession se = request.getSession();
se.setAttribute("ub", ub);
response.sendRedirect("../main/frame_set.jsp");
}else{
response.sendRedirect("../index.jsp");
}
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to
* post.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// 单纯的写入java业务逻辑代码就可以
this.doGet(request, response);
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException
* if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
DbCon.java：类
package com.neusoft.utils;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DbCon {
public static Connection con() {
String url = "jdbc:oracle:thin:@10.25.85.247:1521:orcl";
String user = "scott";
String password = "tiger";
Connection con = null;
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection(url, user, password);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return con;
}
public static void close(Connection con ,Statement st ,ResultSet rs){
try {
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if (st != null) {
st.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if (con != null) {
con.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void close(Connection con ,Statement st){
try {
if (st != null) {
st.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if (con != null) {
con.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Login.jsp:放在：Login文件夹下
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
<!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=GB18030">
<title>Insert title here</title>
<script type="text/javascript">
function test() {
var name_1 = document.formData.password.value;
if(name_1.length<6){
alert("密码不足六位，重新输入");
return false;
}
return true;
}
</script>
</head>
<body>
<form action="../servlet/LoginServlet" method="post" name="formData">
用户名：
<input type="text" name="username" value="neusoft" />
<br>
密码：
<input type="password" name="password" value="123456">
<br>
<input type="submit" value="提交" onclick="return test()">
<input type="reset" value="重置">
</form>
</body>
</html>
frame_a.jsp:和下frame前缀的都放在main文件夹下
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</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">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
欢迎<font color="red">${ub.name}</font>登录本系统.
</body>
</html>
frame_b.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</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"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <a href="../index.jsp" target="main">登录</a> <br /> <a href="url">增加</a> <br /> <a href="url">删除</a> <br /> <a href="url">修改</a> <br /> </body> </html>
frame_c.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</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"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> </body> </html>
frame_set.jsp:
<html> <head></head> <frameset rows="20%,80%"> <frame name="top" src="frame_a.jsp" framef="0"> <frameset cols="20%,80%"> <frame name="left" src="frame_b.jsp" scrolling=no noresize framespacing="0"> <frame name="main" src="frame_c.jsp" bordercolor="red" marginwidth="100" marginheight="50" framespacing="0"> </frameset> <body></body> </noframes> </frameset> </html>
index.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</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"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> 用户名或密码不存在.<a href="Login/Login.jsp">点我重新登录</a> <br> </body> </html>
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"> - <servlet> <servlet-name>LoginServlet</servlet-name> <servlet-class>com.neusoft.services.LoginServlet</servlet-class> </servlet> - <servlet-mapping> <servlet-name>LoginServlet</servlet-name> <url-pattern>/servlet/LoginServlet</url-pattern> </servlet-mapping> - <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
可能有个错误