密码 帐号的修改
<table width="80%" border="1" cellspacing="0" cellpadding="2" align="center">
<form action="yangzheng.jsp">
<tr bgcolor="#ffffff">
<td><center><font color="black">修改用户密码</font></center></td>
</tr>
<form name="theform" action="" method=post onsubmit="returncheck_input()">
<tr>
<td> <font size="2"> 请输入原密码<input type="password"
name="old_password" size="100"></font></td>
</tr>
<tr>
<td> <font size="2"> 请输入新密码<input type="password"
name="new_password_1" size="100"></font></td>
</tr>
<tr>
<td> <font size="2">请确认新密码<input type="password"
name="new_password_2" size="100"></font></td>
</tr>
<tr>
<td>
<center>
<input id="submit" type="submit" name="confirm" onclick="rec()" value=" 确认">
<input id="reset" type="reset" name="reinput" value="重填">
</form>
</center>
</td>
</tr>
</table>
我想不用数据库实现密码和账号的修改 yangzheng.jsp该咋写呢? 有啥好方法呢》? 望 高手指点!!
[解决办法]
修改的账号密码肯定是要存到数据库的,不对数据库进行操作,相当于没改密码,除非你愿意把账号密码写到文件中,没人会这么做吧,操作数据库的效率要比流高得多,而且安全
[解决办法]
File f = new File("c:/info.txt");FileOutputStream out = new FileOutputStream(f);out.write("userpasword".getBytes());out.flush();out.close();
[解决办法]
更新就是更新文件了呗,以后和数据库也就没啥关系了,要验证用户名密码的话就读这个文件,读写文件的指定行效率太低了
[解决办法]
package com.ycom;import java.io.Serializable;public class UserInfo implements Serializable { private static final long serialVersionUID = 7545258646123665837L; private String userName; private String password; public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; }}
[解决办法]
测试类:UserTest (在main方法中切换方法调用,先调用addTest添加用户,要先创建文件,这个自己弄,我就不多说了)
package com.ycom;public class UserTest { private UserDao dao = new UserDao(); public void addTest(){ UserInfo user = new UserInfo(); user.setUserName("zhangsan"); user.setPassword("wwww"); dao.addUser(user); printUsersInfo(); } public void delTest() { dao.delUser("zhangsan"); printUsersInfo(); } public void modifyTest() { dao.modifyUser("zhangsan", "00000"); printUsersInfo(); } private void printUsersInfo(){ for(UserInfo user : dao.getAllUsers()){ System.out.println(user.getUserName()+" "+user.getPassword()); } } public static void main(String[] args) { UserTest ut = new UserTest(); ut.addTest(); }}