In my application I've a singleton that holds the MySQL connection so when the application starts, the MySQL connector is triggered but I got a ClassNotFoundException for the driver that I'm using: com.mysql.cj.jdbc.Driver.
You specified the JDBC driver to have a scope runtime. Most IDEs will anyways ignore the scopes and add all of your dependencies to their classpath (e.g. the classpath used when you run something outside of eclipse. By the scope runtime you are telling maven that it must not pack that dependeny into your final jar since the execution environment will "provide that dependency at runtime. E.g. you would either have to manually add it to the classpath when calling your jar or change the scope to compile which will lead to the driver-jar beeing packed inside your jar and available at runtime.
This imported mysql-connector-java-5.1.15.jar in my Libraries under Maven Dependencies but when I try to connect to database it gives me Exception in thread "main" org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver.
To start with, the jar that I need to connect to MySQL 5.5 should have been mysql-connector-java-5.1.15-bin.jar but not mysql-connector-java-5.1.15.jar. Secondly, this jar is not available in maven repository so I needed to manually add it to my local maven repository and then added it as a dependency in my pom.xml.
MariaDB Connector/J 3.0 only accepts jdbc:mariadb: as the protocol in connection strings by default. When both MariaDB Connector/J and the MySQL drivers are found in the class-path, using jdbc:mariadb: as the protocol helps to ensure that Java chooses MariaDB Connector/J.
JDBC drivers use URLs to identify remote servers - strings similar to classic web URLs.Usually, URL has form jdbc:vendor:host:port/database, for example `jdbc:postgresql:localhost:5432/postgres'.It is not very convenient to edit such a long and an unobvious string.DBeaver can construct this URL from connection parameters (like host, port, etc).
Fill Interpreter name field with whatever you want to use as the alias(e.g. mysql, mysql2, hive, redshift, and etc..). Please note that this alias will be used as %interpreter_name to call the interpreter in the paragraph. Then select jdbc as an Interpreter group.
The last step is Dependency Setting. Since Zeppelin only includes PostgreSQL driver jar by default, you need to add each driver's maven coordinates or JDBC driver's jar file path for the other databases.
The scheme of the URL is jdbc:aws-wrapper:postgresql: for the PostgreSQL JDBC driver and jdbc:aws-wrapper:mysql: for the MySQL JDBC driver. The aws-advanced-wrapper driver accepts anything that starts with jdbc:aws-wrapper and then uses the next part of the scheme to determine which underlying driver to wrap.
After you have the correct dependencies, there are a few changes required to your application to use the AWS Advanced JDBC Wrapper. The connection URL needs to be jdbc:aws-wrapper:postgresql for PostgreSQL or jdbc:aws-wrapper:mysql for MySQL. The first part of the URL loads the AWS Advanced JDBC Wrapper, and the second part tells the driver which underlying driver to load and proxy (Java proxy pattern).
DependencyGroup IDArtifact IDVersioncamel-coreorg.apache.camelcamel-core3.0.0camel-jacksonorg.apache.camelcamel-jackson3.0.0camel-jdbcorg.apache.camelcamel-jdbc3.0.0camel-jsonpathorg.apache.camelcamel-jsonpath3.0.0cdata-mysql-connectororg.cdata.connectorscdata-salesforce-connector19commons-dbcp2org.apache.commonscommons-dbcp22.7.0slf4j-log4j12org.slf4jslf4j-log4j121.7.30log4jorg.apache.logging.log4jlog4j2.12.1
Quarkus uses Agroal and Vert.x to provide high-performance, scalable data source connection pooling for JDBC and reactive drivers.The jdbc-* and reactive-* extensions provide build time optimizations and integrate configured data sources with Quarkus features like security, health checks, and metrics.
To use Dev Services, add the appropriate driver extension, such as jdbc-postgresql, for your desired database type to the pom.xml file.In dev mode, if you do not provide any explicit database connection details, Quarkus automatically handles the database setup and provides the wiring between the application and the database.
In the Libraries Tab press Add External Jar and Select your jar. As the file from the MYSQL connectivity library is not found, Java will give an exception while you build your project. In other words, to conclude is that once you add the library to the project, then Java will be able to locate the driver com.mysql.jdbc.Driver.
Most of the part is automatically generated by STS, however I have update Spring Framework version to use latest version as 4.0.2.RELEASE. Also we have added required artifacts spring-jdbc and mysql-connector-java. First one contains the Spring JDBC support classes and second one is database driver. I am using MySQL database for our testing purposes, so I have added MySQL JConnector jar dependencies. If you are using some other RDBMS then you should make the corresponding changes in the dependencies.
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