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#7 提交代码 #655

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#7 提交代码 #655

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58ec4e2
#7 提交实验代码
yoxiang Dec 19, 2016
3b212cf
#7 提交实验代码
yoxiang Dec 23, 2016
147ba4b
no message
yoxiang Dec 23, 2016
96f4935
Delete servlet.java
yoxiang Dec 23, 2016
aa743fd
Delete database.java
yoxiang Dec 23, 2016
ba093f0
#7 提交代码
yoxiang Dec 23, 2016
f72901e
#7 提交实验代码
yoxiang Dec 23, 2016
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45 changes: 45 additions & 0 deletions jweb/src/edu/hzu/javaweb/labs/se1414080902121/Datab.java
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package javabean;
import java.sql.*;
public class Datab {
boolean bInited = false;
public void initJDBC() throws ClassNotFoundException {
Class.forName("com.mysql.jdbc.Driver");
bInited = true;
System.out.println("Operation succeeded!");
}
public Connection getConnection() throws ClassNotFoundException,
SQLException{
if(!bInited){
initJDBC();
}
Connection conn = DriverManager.getConnection(
"jdbc:mysql://localhost:3306/user","root","");
return conn;
}
public boolean loginSuccess(String userName,String password){
boolean returnValue = false;
String sql = "SELECT * FROM user";
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try{
conn = getConnection();
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
while(rs.next()){
String userNameInDB = rs.getString("name");
String passwordInDB = rs.getString("pwd");
if(userNameInDB.equals(userName) &&
passwordInDB.equals(password)){
returnValue = true;
break;
}
}
}catch (ClassNotFoundException e) {
e.printStackTrace();
}catch (SQLException e) {
e.printStackTrace();
}
return returnValue;
}
}
39 changes: 39 additions & 0 deletions jweb/src/edu/hzu/javaweb/labs/se1414080902121/UseServlet.java
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package edu.hzu.javaweb.labs.se1414080902121;
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javabean.Datab;
public class UseServlet implements javax.servlet.Servlet{
public void destroy() {
}
public ServletConfig getServletConfig() {
return null;
}
public String getServletInfo() {
return null;
}
public void init(ServletConfig arg0) throws ServletException {
}
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException{
String userName = request.getParameter("username");
String password = request.getParameter("password");
Datab db = new Datab();
boolean canLogin = db.loginSuccess(userName, password);
if(canLogin){
response.sendRedirect("display.jsp");
}else{
response.sendRedirect("failure.jsp");
}
}
public void service(ServletRequest request, ServletResponse response)
throws ServletException, IOException {
HttpServletRequest rq = (HttpServletRequest)request;
HttpServletResponse rs = (HttpServletResponse) response;
doPost(rq,rs);
}
}
42 changes: 42 additions & 0 deletions jweb/web/1414080902121/login.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登陆</title>
<style>
form{width:350px;height:200px;}
form fieldset{border:0;align:center;}
form label{display:inline-block;width:60px;text-align:right}
input{width:300px;height:35px;}
#submit{width:200px;height:35px;position:relative;left:60px;}
#submit:hover{
cursor: pointer;
background: #FDF5E6;
}
body{
width:100%;
height:100%;
background: #CCDDFF;
}
#box{position:fixed;left:0px;right:0px;width:606px;margin-left:auto;margin-right:auto;top:100px;}
a{position:relative;bottom:-10px;}
</style>
</head>
<body>
<div id="box">
<form action="login" style="background:#cccccc" method="post">
<fieldset>
<p>
<label for="user">用户：</label>
<input type="text" class="" id="user" name="username" placeholder="user">
<br>
<label for="password">密码：</label>
<input type="password" class="" id="password" name="password" placeholder="password">
<button type="submit" id="submit">登录</button>
</fieldset>
</form>
</div>
</body>
</html>