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我有这段代码 login.jsp 和 registration.jsp 这些jsps让我登录并注册成功，数据将保存在mysql数据库中。 现在，接下来要做的是如何更改密码。 你们能帮我修改密码吗？ 这是我的数据库
CREATE TABLE `members` (
`id` int(10) unsigned NOT NULL auto_increment,
`first_name` varchar(45) NOT NULL,
`last_name` varchar(45) NOT NULL,
`email` varchar(45) NOT NULL,
`uname` varchar(45) NOT NULL,
`pass` varchar(45) NOT NULL,
`regdate` date NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
登录.jsp
<%@ page import ="java.sql.*" %>
<%
String userid = request.getParameter("uname");
String pwd = request.getParameter("pass");
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/users",
"root", "");
Statement st = con.createStatement();
ResultSet rs;
rs = st.executeQuery("select * from members where uname='" + userid + "' and pass='" + pwd + "'");
if (rs.next()) {
session.setAttribute("userid", userid);
//out.println("welcome " + userid);
//out.println("<a href='logout.jsp'>Log out</a>");
response.sendRedirect("success.jsp");
} else {
out.println("Invalid password <a href='index.jsp'>try again</a>");
}
%>
注册.jsp
<%@ page import ="java.sql.*" %>
<%
String user = request.getParameter("uname");
String pwd = request.getParameter("pass");
String fname = request.getParameter("fname");
String lname = request.getParameter("lname");
String email = request.getParameter("email");
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/users",
"root", "");
Statement st = con.createStatement();
ResultSet rs;
int i = st.executeUpdate("insert into members(first_name, last_name, email, uname, pass, regdate) values ('" + fname + "','" + lname + "','" + email + "','" + user + "','" + pwd + "', CURDATE())");
if (i > 0) {
//session.setAttribute("userid", user);
response.sendRedirect("welcome.jsp");
// out.print("Registration Successfull!"+"<a href='index.jsp'>Go to Login</a>");
} else {
response.sendRedirect("index.jsp");
}
%>
编辑这里是我的 change.jsp 我不知道它是否正确。
改变.jsp
<%@ page import ="java.sql.*" %>
<%
String userid = request.getParameter("uname");
String pwd = request.getParameter("pass");
String chg = request.getParameter("change");
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/users",
"root", "");
Statement st = con.createStatement();
ResultSet rs;
st.executeUpdate("update members set chg='" + pwd + "' where uname='" + userid + "'");
%>
帮帮我谢谢!
