如何将HTML输入与数据库进行比较 [英] How to compare HTML input to the database
问题描述
我创建了一个html登录页面，用户在其中输入名称和密码，如果用户存在login else错误，我想将名称和密码与数据库进行比较。数据库使用mysql。
我尝试过：
#servlet page
试试
{
Class.forName（sun.jdbc.odbc.jdbcodbcdriver）;
System.out.println（loading loaded ）;
Connection.con = DriverManager（jdbc：odbc：five）;
System.out.println（数据库加载）;
PreparedStatement ps = con.preparedStatement（从表中选择名称）;
结果rs = ps.executQuery（）;
String s = JTextField.getText（）;
String s1 = rs.getString（name）;
If（s.equals（s1））{
Matched
}
else {
无效用户;
}
}
#html页
名称
I created a html login page in which user enter the name and password and I want to compare the name and password to the database for existance if user exist the login else error.for database use mysql.
What I have tried:
#servlet page
Try
{
Class.forName("sun.jdbc.odbc.jdbcodbcdriver");
System.out.println("driver loaded");
Connection.con=DriverManager("jdbc:odbc:five");
System.out.println(database loaded);
PreparedStatement ps=con.preparedStatement("select name from table");
Results rs=ps.executQuery();
String s=JTextField.getText();
String s1= rs.getString("name");
If(s.equals(s1)){
Matched
}
else{
Invalid user;
}
}
#html page
Name
推荐答案
什么不是rk是什么意思？请记住，我们无法看到您的屏幕或猜测您做了什么。你需要展示你的代码并准确解释发生了什么。
你应该首先阅读简单安全密码认证解释 [ ^ ]以确保您安全地存储密码。另请查看 bobby-tables.com：防止SQL注入的指南 [ ^ ]，以确保您保护数据库的完整性。
What does "not work" mean? Please remember, we cannot see your screen or guess what you have done. You need to show your code and explain exactly what is happening.
You should start by reading Secure Password Authentication Explained Simply[^] to ensure you are storing your passwords securely. Also check bobby-tables.com: A guide to preventing SQL injection[^] to see that you are protecting the integrity of your database.
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