11/1/2022 0 Comments H2 database![]() ![]() ![]() Spring.h2.-admin-password - password to access preferences and tools of H2 console Spring.h2. - whether to enable trace output (default is false) Spring.h2.console.path - path at which the console is available (default is /h2-console) Spring.h2.console.enabled - whether to enable the H2 console (default is true) Spring H2 Configuration PropertiesFor your reference, Spring Boot lets you configure H2 with the following properties: Spring.h2.console.enabled=falseYou can also specify a different path for H2 Console. Database available at 'jdbc:h2:mem:…'That means you can access the H2 console by opening the address like as shown below: Very convenient, right? As you don’t have to manually download H2 and type a command in the command line.If you don’t want H2 console start with your application, you can disable it in the application.properties file using this property: When you start a Spring application with H2 in classpath, you will see the following message in console: H2 console available at '/h2-console'. Use H2 Console in Spring Boot applicationNote that you can use H2 Console right within your Spring Boot application. Import class DatabaseInitializer JdbcTemplate loadDatabase() To make it works, you need to remove the runtime scope of H2 dependency.Ħ. #H2 DATABASE CODE#The following code example is a database initializer that uses Spring JDBC’s JdbcTemplateto connect to a H2 database, and execute some SQL statements for creating a new table and inserting some rows into the table: package net.codejava =jdbc:h2:mem:or: # multiple connections in one process You can also specify the JDBC URL or H2 in-memory database in the application.properties file as follows: #unamed private one connection The database is removed when all connections are closed (default).By default, with Spring Boot, you don’t have to specify any JDBC URL to use H2 in in-memory mode. Spring Boot Connect to H2 in In-memory Mode with Spring JDBCWith in-memory mode, the application accesses a H2 database that lives in memory, in the same JVM process that runs the application. Visit this page to know the latest version of H2 database.Ģ. If you want to use a specific version, you can explicitly declare it: The H2 version is specified by Spring Boot by default. Add H2 DependencyTo use H2 database in your Spring Boot project, add the following dependency in the project’s pom.xml file: #H2 DATABASE HOW TO#You’ll also learn how to connect to H2 database with Spring JDBC and Spring Data JPA. ![]() And Spring Boot provides seamless integration with H2 if it finds H2 dependency in the classpath.In this tutorial, I’ll show you some code examples that connect Spring Boot applications to H2 database in different modes: in-memory, embedded and client/server. You know, H2 is pure Java SQL database which is open source, lightweight, fast and can be embedded into Java applications. ![]()
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