Name: Failed to configure a DataSource url attribute is not specified and no embedded datasource could be configured - JavaTute
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Failed to configure a DataSource url attribute is not specified and no embedded datasource could be configured - JavaTute

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Sign inLog into your accountyour usernameyour passwordForgot your password?Privacy PolicyPassword recoveryRecover your passwordyour emailIn this post, we will see how to fix Failed to configure a DataSource url attribute is not specified and no embedded datasource could be configured.We might get the below exception while running the spring boot application.Failed to configure a DataSource: ‘url’ attribute is not specified and no embedded datasource could be configured.Reason: Failed to determine a suitable driver classAction:Consider the following:If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).The error message “Failed to configure a DataSource: ‘url’ attribute is not specified, and no embedded datasource could be configured” typically occurs in Java applications when you’re using a framework like Spring Boot and trying to set up a database connection, but the application doesn’t know how to configure the data source properly. This error suggests that you haven’t provided the necessary configuration for your data source.Let’s see the code that is responsible for this exception.The DataSourceProperties.java class from org.springframework.boot.autoconfigure.jdbc package has initializeDataSourceBuilder() method that is used to determine driver class, URL, and password.public DataSourceBuilder initializeDataSourceBuilder() {return DataSourceBuilder.create(getClassLoader()).type(getType()).driverClassName(determineDriverClassName()).url(determineUrl()).username(determineUsername()).password(determinePassword());}1. Using @SpringBootApplication(exclude = {DataSourceAutoConfiguration.class })If we are not using any database for our spring boot application, we might consider excluding auto datasource configuration using exclude = {DataSourceAutoConfiguration.class} in our @SpringBootApplication annotation, we are telling Spring Boot not to automatically configure a data source. In other words, we are disabling the default behavior of setting up a database connection based on the data source properties@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class })public class SpringMain {public static void main(String[] args) {SpringApplication.run(SpringMain.class, args);}}2. If we are using database for Spring Boot application, we need to provide proper database details in appliation.properties fileapplication.properties file for Spring Boot Mysql configuration.spring.datasource.url=jdbc:mysql://localhost:3306/springbootcrudexamplespring.datasource.username=rootspring.datasource.password=rootspring.jpa.hibernate.ddl-auto=createspring.jpa.show-sql=truespring.jpa.properties.hibernate.format_sql=trueserver.port = 9091Note – if you are using spring.datasource.driverClassName=com.mysql.jdbc.Driver then change it to spring.datasource.driver-class-name=com.mysql.jdbc.Driverapplication.properties file for Spring Boot Oracle configuration# Connection url for the databasespring.datasource.url=jdbc:oracle:thin:@localhost:1521:XEspring.datasource.username=SYSTEMspring.datasource.password=oraclespring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver# Show or not log for each sql queryspring.jpa.show-sql = truespring.jpa.properties.hibernate.format_sql=truespring.jpa.hibernate.ddl-auto =createspring.jpa.properties.hibernate.dialect = org.hibernate.dialect.Oracle10gDialectserver.port = 9091#show sql values#logging.level.org.hibernate.type.descriptor.sql=tracehibernate.show_sql = true#spring.jpa.hibernate.logging.level.sql =FINE#show sql statement#logging.level.org.hibernate.SQL=debugapplication.properties file for Spring Boot PostgreSQL configuration.spring.datasource.url=jdbc:postgresql://localhost:5432/postgresspring.datasource.username=postgresspring.datasource.password=postgresspring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialectspring.jpa.hibernate.ddl-auto=createspring.jpa.show-sql=trueserver.port = 9091spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=trueapplication.properties file for h2 database# H2 Database Configurationspring.datasource.url=jdbc:h2:mem:testdbspring.datasource.driverClassName=org.h2.Driverspring.datasource.username=saspring.datasource.password=password# H2 Console Configuration (optional)spring.h2.console.enabled=truespring.h2.console.path=/h2-console3. Define spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration in application.properties file.4. Make sure we have the appropriate database driver dependency in our project. If we are using Maven, we can include it in our pom.xml.mysqlmysql-connector-java8.0.27 5. Verify that our application is loading the correct configuration file. Spring Boot typically looks for application.properties or application.yml in the classpath by default. Make sure you haven’t misspelled the filename or placed it in the wrong location.6. Make sure that our database server is up and running, and the provided URL is correct.That’s all about Failed to configure a DataSource url attribute is not specified and no embedded datasource could be configuredOther posts.© 2022 JavaTute

Sign inLog into your accountyour usernameyour passwordForgot your password?Privacy PolicyPassword recoveryRecover your passwordyour emailIn this post, we will see how to fix Failed to configure a DataSource url attribute is not specified and no embedded datasource could be configured.We might get the below exception while running the spring boot application.Failed to configure a DataSource: ‘url’ attribute is not specified and no embedded datasource could be configured.Reason: Failed to determine a suitable driver classAction:Consider the following:If you want an embedded database (H2, HSQL...

Failed to configure a DataSource url attribute is not specified and no embedded datasource could be configured - JavaTute

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