are matt passmore and kiele sanchez dating - Updating database in servlet

Im trying to update my db but its just not happening. **NB: I'm just having trouble with the Update Servlet because i dont know how to get the modified datas from the JSP in order to send it to the DAO and then to update the DB.

updating database in servlet-26

Now Using my first index jsp, how can I check user Name and password against the User Info data for authenticated credentials?

Http Servlet Response; @Web Servlet("/Registration Servlet") public class Registration Servlet extends Http Servlet ) Prepared Statement update User Info = (Prepared Statement) conn .prepare Statement("insert into user Info ( User Name, user PW) values(? )"); //since first column is AI, no need to include that for updates update User String(1, n User); update User String(2, n PW); update User Info.execute Update(); now my data is being saved in the user Info Db and serial# is being auto incremented.

Servlet Exception; import javax.servlet.annotation.

Http Servlet Response; @Web Servlet(url Patterns = , init Params = ) public class user Login extends Http Servlet package Web; import

To keep it simple — but also show several different data types — I've created the following My SQL database table: create table users ( id int unsigned auto_increment not null, first_name varchar(32) not null, last_name varchar(32) not null, date_created timestamp default now(), is_admin boolean, num_points int, primary key (id) ); -- insert some sample records insert into users (first_name, last_name) values ('Fred', 'Flinstone'); insert into users (first_name, last_name) values ('Barney', 'Rubble'); A few of these fields are a little contrived, but I wanted to show several different data types in one table, so this is what I came up with.

In particular, the field "num_points" is a little unusual.

So i should find a way to show the email address in something else than a input text box.

This tutorial assumes you have understanding on how JDBC application works.

Typically in a database program like this you'll end up updating rows based on the primary key of the database table.

Specifically, in this example, you'd probably already know the "id" for the user Fred, and when you go to update Fred's data, you would normally do it like this: ---- ------------ ----------- --------------------- ---------- ------------ | id | first_name | last_name | date_created | is_admin | num_points | ---- ------------ ----------- --------------------- ---------- ------------ | 2 | Fred | Flinstone | 2010-06-23 | 0 | 6000 | ---- ------------ ----------- --------------------- ---------- ------------ 1 row in set (0.00 sec) In "real world" Java database programs I almost always use the Spring JDBC libraries to access a database, but when you're first getting started, or working on small programs, I think it's important to see examples like this so you can understand how things work under the covers.

Note that in this example my My SQL database username is "root", my password is blank, and the My SQL database is running on the same computer where this program is run, so the database host name is "localhost". * Demonstrates the use of a SQL UPDATE statement against a * My SQL database, called from a Java program.

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