Ihave a jboss wildfly server connected to a mysql database via a datasource configured on the app server. It hapens some time that the mysql database is not accessible for an amount of time (netework problem etc), when the mysql is not accessible I receive in logs the message :
atru.hrs.lassd.club.spa.visual.components.blocks.impls.editors.PopupBookingEdit.doPayment(PopupBookingEdit.java:487) Imtrying to insert some simple data in my local mysql database using jpa-2.2 with hibernate in my java project. this is the pom related: javax.persistence javax.persistence-api 2.2
0 Try setting conn.setAutoCommit to true. Also you need to delete . If you are doing this inside of a function, make your function synchronized. It's even more better if you use PreparedStatement instead of Statement. All this is happening because sometimes you are trying to connect and modify your database at a same time and
Thesewarnings or exceptions indicate that the connection being accessed is no longer valid, or JDBC access is no longer valid, possibly because the transaction is no longer active. As an example, here is an actual exception from WebLogic: java.sql.SQLException: The transaction is no longer active - status: 'Committed'. Thelater sections in this chapter then cover the other ORM technologies and show brief examples. As of Spring Framework 6.0, Spring requires Hibernate ORM 5.5+ for Spring's HibernateJpaVendorAdapter as well as for a native Hibernate SessionFactory setup. We recommend Hibernate ORM 5.6 as the last feature branch in that Hibernate generation.
Run export MYSQL_PW='your_password' in your environment and use 'process.env.MYSQL_PW' as your password in the code below. var connection = mysql.createConnection({ host : 'localhost', user : 'root', //your root username database : 'your_database', //the name of your db (create this if you haven't already) password : process.env.MYSQL_PW //your root user's password });
TheJdbcTemplate class is the central class in the JDBC core package. It handles the creation and release of resources, which helps you avoid common errors such as forgetting to close the connection. It performs the basic tasks of the core JDBC workflow such as statement creation and execution, leaving application code to provide SQL and extract results.
HTTPStatus 500 - Request processing failed;nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement 2 Can a Spring MVC exception handler ONLY support return type of type View?
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