JSP数据库帐号密码验证解决办法
日期：2014-05-18 浏览次数：20761 次
JSP数据库帐号密码验证
哪为老哥帮帮小弟～！！代码如下～！怎么才能实现功能啊？
<%@ page contentType= "text/html; charset=GB18030 " %>
<%@page language= "java " %>
<%@page import= "java.sql.* " %>
<%!
Connection con;
Statement stat;
ResultSet rs;
public void Conn(){
try {
Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver ");
con =DriverManager.getConnection( "jdbc:odbc:sy ", "sa ", "liming020412 ");
stat=con.createStatement();
}
catch (Exception ex) {
System.out.println( "数据库连接失败~！！！ ");
}
}
%>
<%
String sql= "select * from login where name= ' "+name+ " ' and pwd= ' "+pwd+ " ' ";
%>
<%!
public boolean login(String sql){
try {
rs=stat.executeQuery(sql);
if(rs.next()){
return true;
}
}
catch (Exception ex) {
System.out.println( "登录失败~！ ");
}
return false;
}
%>
<html>
<head>
<title>
ConnDemo
</title>
</head>
<body bgcolor= "#ffffff ">
<% %>
<form method= "post " action= "Conninfo.jsp " onsubmit= "return login() ">
<p> <input type= "Text " name= "name " value= " " size= "20 " maxlength= "18 "> </p>
<p> <input type= "password " name= "pwd " value= " " size= "20 " maxlength= "18 "> </p>
<p> <input type= "submit " name= "Submit " value= "Submit "> </p>
<input type= "reset " value= "Reset ">
</form>
</body>
</html>
------解决方案--------------------
判断用户名，密码最好放javabean里~~~~
charset=GB18030???没用过这个，一般都是charset=UTF-8
在Conninfo.jsp中加上
<%
String name = request.getParameter( "name ");
String pwd = request.getParameter( "pwd ");
%>
再看数据库是否存在此用户名，密码
哪为老哥帮帮小弟～！！代码如下～！怎么才能实现功能啊？
<%@ page contentType= "text/html; charset=GB18030 " %>
<%@page language= "java " %>
<%@page import= "java.sql.* " %>
<%!
Connection con;
Statement stat;
ResultSet rs;
public void Conn(){
try {
Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver ");
con =DriverManager.getConnection( "jdbc:odbc:sy ", "sa ", "liming020412 ");
stat=con.createStatement();
}
catch (Exception ex) {
System.out.println( "数据库连接失败~！！！ ");
}
}
%>
<%
String sql= "select * from login where name= ' "+name+ " ' and pwd= ' "+pwd+ " ' ";
%>
<%!
public boolean login(String sql){
try {
rs=stat.executeQuery(sql);
if(rs.next()){
return true;
}
}
catch (Exception ex) {
System.out.println( "登录失败~！ ");
}
return false;
}
%>
<html>
<head>
<title>
ConnDemo
</title>
</head>
<body bgcolor= "#ffffff ">
<% %>
<form method= "post " action= "Conninfo.jsp " onsubmit= "return login() ">
<p> <input type= "Text " name= "name " value= " " size= "20 " maxlength= "18 "> </p>
<p> <input type= "password " name= "pwd " value= " " size= "20 " maxlength= "18 "> </p>
<p> <input type= "submit " name= "Submit " value= "Submit "> </p>
<input type= "reset " value= "Reset ">
</form>
</body>
</html>
------解决方案--------------------
判断用户名，密码最好放javabean里~~~~
charset=GB18030???没用过这个，一般都是charset=UTF-8
在Conninfo.jsp中加上
<%
String name = request.getParameter( "name ");
String pwd = request.getParameter( "pwd ");
%>
再看数据库是否存在此用户名，密码
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