![]() }Note that the database connection information specified in the beginning of the checkLogin() method. ResultSet result = statement.executeQuery() PreparedStatement statement = connection.prepareStatement(sql) String sql = "SELECT * FROM users WHERE email = ? and password = ?" ![]() String jdbcURL = "jdbc:mysql://localhost:3306/bookshop" Ĭonnection connection = DriverManager.getConnection(jdbcURL, dbUser, dbPassword) Public User checkLogin(String email, String password) throws SQLException, So create UserDAO class with the following code: package net.codejava Code Check Login methodNext, we need to implement a method that checks the login information entered by the user against the data in the database. They are not shown in the above code or brevity.ģ. }You should generate getter and setter methods for all fields of this class. ![]() getters and setters are not shown for brevity The User model classNext, create a plain old Java object (POJO) class that represents a user: package net.codejava Of course you can add additional fields to this table if you want.Ģ. Create database table used for authenticationIn the login page, the user enters email and password – so we need to verify that login information against data in a database table, typically the users table.Make sure that the table you use for authentication has at least 3 fields: fullname, email and password.Here’s the structure of the table users I use for this tutorial: If you haven’t created any table for authentication, execute the following MySQL script to create one: CREATE TABLE `users` ( Create database table used for authenticationħ. No frameworks are used.Suppose that you have an existing Java web project and now you wish to add the login and logout features for your website.Table of content:ġ. Just plain old, core Java EE technologies. In this tutorial, I will guide you how to implement login and logout functions for a small Java web application using Servlet, JSP, JDBC and MySQL. How to implement remember password feature.How to implement forgot password feature.How to read password-protected Excel file in Java.Java File Encryption and Decryption Example.Compile and run a Java program with Sublime Text.Compile and Run a Java Program with TextPad. ![]() File Upload to Database with Spring and Hibernate.File Upload to Database with Servlet, JSP, MySQL.Java Servlet and JSP Hello World Tutorial.You can use Spring JDBC for simple cases and Spring Data JPA for more advanced usage. args) throws Exception To learn more about Spring Data JPA, I recommend you to follow this article: Understand Spring Data JPA with Simple ExampleThat’s how to connect to MySQL database server in a Spring Boot application. n(MySqlConnectionApplication.class, void run(String. Import class MySqlConnectionApplication implements CommandLineRunner JdbcTemplate jdbcTemplate The following example program illustrates how to use JdbcTemplate to execute a SQL Insert statement: package net.codejava You need to declare the following dependency: Connect to MySQL with Spring JDBCSpring JDBC provides a simple API on top of JDBC ( JdbcTemplate), which you can use in simple cases, e.g. If you connect to a remote MySQL server, you need to replace localhost by IP address or hostname of the remote host.ģ. =passwordUpdate the data source URL, username and password according to your MySQL configuration. Specify Data Source PropertiesNext, you need to specify the following properties in the Spring Boot application configuration file ( application.properties): =jdbc:mysql://localhost:3306/bookshop You don’t need to specify the version as Spring Boot uses the default version specified in the parent POM. Declare dependency for MySQL JDBC DriverTo use MySQL JDBC driver, declare the following dependency in the Maven pom.xmlfile of your Spring Boot project: In case of Spring Data JPA, you need to create an entity class, a repository interface and then use the Spring Data JPA API.īelow are the details for connecting to MySQL server in a Spring Boot application.In case of Spring JDBC, use JdbcTemplate APIs for executing SQL statements against the database.Specify data source properties for the database connection information.Declare a dependency for Spring JDBC or Spring Data JPA.Declare a dependency for MySQL JDBC driver, which enables Java application to communicate with MySQL server.A Spring Boot web application with Spring Data JPA and Hibernate frameworkīasically, in order to make a connection to a MySQL server, you need to do the following steps:.A Spring Boot console application with Spring JDBC and JdbcTemplate.In this article, I’d like to share with you how to configure a Spring Boot application to connect to MySQL database server, in these two common scenarios:
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