BAEL-8008 - H2 running script from file (#16765)

* BAEL-8008 - H2 running script from file

* BAEL-8008 - changing script file locations

* BAEL-8008 - moving to another module

* BAEL-8008 - moving to another module

Author: abh1navv

persistence-modules/pom.xml

@@ -130,9 +130,9 @@
         <module>spring-data-cassandra-2</module>
         <module>spring-data-jpa-repo-3</module>
         <module>spring-boot-persistence-4</module>
+        <module>spring-boot-persistence-5</module>
         <module>hibernate-annotations-2</module>
         <module>hibernate-reactive</module>
-
     </modules>
 
     <properties>

persistence-modules/spring-boot-persistence-5/README.md

@@ -0,0 +1,2 @@
+## Relevant Articles
+

persistence-modules/spring-boot-persistence-5/pom.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.boot.persistence</groupId>
+    <artifactId>spring-boot-persistence-5</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-boot-persistence-5</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-3</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-3</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+
+</project>

persistence-modules/spring-boot-persistence-5/src/main/java/com/baeldung/h2/H2Application.java

@@ -0,0 +1,44 @@
+package com.baeldung.h2;
+
+import jakarta.annotation.PostConstruct;
+import org.h2.tools.RunScript;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.core.io.ClassPathResource;
+
+import java.io.FileReader;
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+@SpringBootApplication
+public class H2Application {
+    public static final Logger log = LoggerFactory.getLogger(H2Application.class);
+
+    @Value("${spring.datasource.url}")
+    private String url;
+    @Value("${spring.datasource.username}")
+    private String user;
+    @Value("${spring.datasource.password}")
+    private String password;
+
+    public static void main(String[] args) {
+        SpringApplication.run(H2Application.class, args);
+    }
+
+
+    @PostConstruct
+    public void init() throws SQLException, IOException {
+        Connection connection = DriverManager.getConnection(url, user, password);
+        ResultSet rs = RunScript.execute(connection, new FileReader(new ClassPathResource("db/script.sql").getFile()));
+        log.info("Reading Data from the employee table");
+        while (rs.next()) {
+            log.info("ID: {}, Name: {}", rs.getInt("id"), rs.getString("name"));
+        }
+    }
+}

persistence-modules/spring-boot-persistence-5/src/main/resources/application.properties

@@ -0,0 +1,8 @@
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.jpa.hibernate.ddl-auto=none
+spring.sql.init.data-locations=classpath:db/data.sql
+spring.sql.init.schema-locations=classpath:db/schema.sql

persistence-modules/spring-boot-persistence-5/src/main/resources/db/data.sql

@@ -0,0 +1,3 @@
+INSERT INTO employee (name) VALUES ('John');
+INSERT INTO employee (name) VALUES ('Jane');
+UPDATE EMPLOYEE SET NAME = 'Jane Doe' WHERE ID = 2;

persistence-modules/spring-boot-persistence-5/src/main/resources/db/schema.sql

@@ -0,0 +1,4 @@
+CREATE TABLE IF NOT EXISTS employee (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(255) NOT NULL
+);

persistence-modules/spring-boot-persistence-5/src/main/resources/db/script.sql

@@ -0,0 +1,9 @@
+CREATE TABLE IF NOT EXISTS employee (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(255) NOT NULL
+);
+INSERT INTO employee (name) VALUES ('John');
+INSERT INTO employee (name) VALUES ('Jane');
+UPDATE EMPLOYEE SET NAME = 'Jane Doe' WHERE ID = 2;
+UPDATE employee SET NAME = 'John Doe' WHERE ID = 1;
+SELECT * FROM employee;

persistence-modules/spring-boot-persistence-5/src/test/java/com/baeldung/h2/H2ApplicationIntegrationTest.java

@@ -0,0 +1,26 @@
+package com.baeldung.h2;
+
+import org.h2.tools.RunScript;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.core.io.ClassPathResource;
+
+import java.io.FileReader;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+
+@SpringBootTest
+class H2ApplicationIntegrationTest {
+
+
+    @Test
+    void givenApplication_whenBootstrapped_thenDataAvailable() throws Exception {
+        Connection connection = DriverManager.getConnection("jdbc:h2:mem:testdb", "sa", "password");
+        ResultSet rs = RunScript.execute(connection, new FileReader(new ClassPathResource("db/script.sql").getFile()));
+        Assertions.assertTrue(rs.next());
+        Assertions.assertEquals(1, rs.getInt("id"));
+        Assertions.assertEquals("John Doe", rs.getString("name"));
+    }
+}

persistence-modules/spring-boot-persistence-5/src/test/resources/application.properties

@@ -0,0 +1,8 @@
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.jpa.hibernate.ddl-auto=none
+spring.sql.init.data-locations=classpath:db/data.sql
+spring.sql.init.schema-locations=classpath:db/schema.sql