Spring boot fails to load DataSource using PostgreSQL driver
Where did this come from: database.driverClassName=org.postgresql.Driver? Don’t you mean spring.datasource.driverClassName?
spring-jdbc
How to set up datasource with Spring for HikariCP?
you need to write this structure on your bean configuration (this is your datasource): <bean id=”hikariConfig” class=”com.zaxxer.hikari.HikariConfig”> <property name=”poolName” value=”springHikariCP” /> <property name=”connectionTestQuery” value=”SELECT 1″ /> <property name=”dataSourceClassName” value=”${hibernate.dataSourceClassName}” /> <property name=”maximumPoolSize” value=”${hibernate.hikari.maximumPoolSize}” /> <property name=”idleTimeout” value=”${hibernate.hikari.idleTimeout}” /> <property name=”dataSourceProperties”> <props> <prop key=”url”>${dataSource.url}</prop> <prop key=”user”>${dataSource.username}</prop> <prop key=”password”>${dataSource.password}</prop> </props> </property> </bean> <!– HikariCP configuration –> <bean … Read more
HSQL database user lacks privilege or object not found error
As said by a previous response there is many possible causes. One of them is that the table isn’t created because of syntax incompatibility. If specific DB vendor syntax or specific capability is used, HSQLDB will not recognize it. Then while the creation code is executed you could see that the table is not created … Read more
How to query for a List in JdbcTemplate?
To populate a List of String, you need not use custom row mapper. Implement it using queryForList. List<String>data=jdbcTemplate.queryForList(query,String.class)
Spring Security circular bean dependency
You could replace constructor-based dependency injection with setter-based dependency injection to resolve the cycle, see Spring Framework Reference Documentation: Circular dependencies If you use predominantly constructor injection, it is possible to create an unresolvable circular dependency scenario. For example: Class A requires an instance of class B through constructor injection, and class B requires an … Read more
NamedParameterJdbcTemplate vs JdbcTemplate
When you use JdbcTemplate you give it SQL that has a ? placeholder for each parameter you want substituted into the SQL. When you assign parameters in the code you have to pass in arguments in an array and they get used in the order in which they appear in the array, like this: Object[] … Read more
Spring Boot: Jdbc javax.net.ssl.SSLException: closing inbound before receiving peer’s close_notify
The SSL connection to the database is failing, try changing your datasource URL to: spring.datasource.url=jdbc:mysql://localhost:3306/employee_database?useSSL=false
Seeing the underlying SQL in the Spring JdbcTemplate?
The Spring documentation says they’re logged at DEBUG level: All SQL issued by this class is logged at the DEBUG level under the category corresponding to the fully qualified class name of the template instance (typically JdbcTemplate, but it may be different if you are using a custom subclass of the JdbcTemplate class). In XML … Read more
Spring JDBC Template for calling Stored Procedures
There are a number of ways to call stored procedures in Spring. If you use CallableStatementCreator to declare parameters, you will be using Java’s standard interface of CallableStatement, i.e register out parameters and set them separately. Using SqlParameter abstraction will make your code cleaner. I recommend you looking at SimpleJdbcCall. It may be used like … Read more
JPA vs Spring JdbcTemplate [closed]
Use Spring JdbcTemplate if you don’t want to access your database schema via a domain model. Using JdbcTemplate you are using a lower level access, with more flexibility, but probably also more boilerplate. Spring JdbcTemplate can be more easily used with exotic database schemas and a stored procedure focus. Using JPA you need to make … Read more