java - 错误: Cannot create PoolableConnectionFactory (isValid() returned false)

Question

有什么问题吗？我使用H2数据库

有人可以解决我的问题吗？ 我使用 H2 数据库，Hibernate 5

这就是 HibernateConfig.java

package com.train.shoponlinebackend.config;
@Configuration
@ComponentScan(basePackages = {"com.train.shoponlinebackend.dto"})
@EnableTransactionManagement
public class HibernateConfig {

private static String DATABASE_URL = "jdbc:h2:tcp://localhost/~/onlineshopping";
private static String DATABASE_DRIVER = "org.h2.Driver";
private static String DATABASE_DIALECT = "org.hibernate.dialect.H2Dialect";
private static String DATABASE_USERNAME = "sa";
private static String DATABASE_PASSWORD = "";
@Bean
public DataSource getDataSource() {

    BasicDataSource dataSource = new BasicDataSource();
    dataSource.setDriverClassName(DATABASE_DRIVER);
    dataSource.setUrl(DATABASE_URL);
    dataSource.setUsername(DATABASE_USERNAME);
    dataSource.setPassword(DATABASE_PASSWORD);

    return dataSource;
}

@Bean
public SessionFactory getSessionFactory(DataSource dataSource) {
    LocalSessionFactoryBuilder builder = new LocalSessionFactoryBuilder(dataSource);

    builder.addProperties(getHibernateProperties());
    builder.scanPackages("com.train.shoponlinebackend.dto");

    return builder.buildSessionFactory();
}

private Properties getHibernateProperties() {
    // TODO Auto-generated method stub
    Properties properties = new Properties();
    properties.put("hibernate.dialect", DATABASE_DIALECT);
    properties.put("hibernate.show_sql", true);
    properties.put("hibernate.format_sql", true);

    return properties;
}

@Bean
public HibernateTransactionManager getTransactionManager(SessionFactory sessionFactory) {
    HibernateTransactionManager transactionManager = new HibernateTransactionManager(sessionFactory);

    return transactionManager;
}

}

我在 DAO IMPL 中的方法:

@Repository("categoryDAO")
public class CategoryDAOImpl implements CategoryDAO {

    @Autowired
    private SessionFactory sessionFactory;


    @Override
        @Transactional
        public boolean add(Category category) {
            try {
                // add category
                sessionFactory.getCurrentSession().persist(category);
                return true;

            } catch (Exception e) {
                e.printStackTrace();
                return false;
            }
        }
}

我的 JUNIT 测试

@Test
    public void testAdCategory(){
        category = new Category();
        category.setActive(true);
        category.setDescription("This is some description of TV");
        category.setImageURL("CAT_1.png");
        category.setName("Television");

        assertEquals("Success added category", true, categoryDAO.add(category));
    }

运行 junit 测试时出现错误:

org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
    at org.springframework.orm.hibernate5.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:542)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:447)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:277)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
    at com.sun.proxy.$Proxy28.add(Unknown Source)
    at com.train.shoponlinebackend.test.CategoryTestCase.testAdCategory(CategoryTestCase.java:36)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)
    at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:102)
    at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:129)
    at org.hibernate.internal.SessionImpl.connection(SessionImpl.java:514)
    at org.springframework.orm.hibernate5.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:448)
    ... 32 more
Caused by: java.sql.SQLException: Cannot create PoolableConnectionFactory (isValid() returned false)
    at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2294)
    at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2039)
    at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1533)
    at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
    at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35)
    at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:99)
    ... 35 more
Caused by: java.sql.SQLException: isValid() returned false
    at org.apache.commons.dbcp2.PoolableConnection.validate(PoolableConnection.java:284)
    at org.apache.commons.dbcp2.PoolableConnectionFactory.validateConnection(PoolableConnectionFactory.java:357)
    at org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:2307)
    at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2290)
    ... 40 more

Answer 1

检查 pom.xml 文件中 h2 的版本。

如果 h2 数据库引擎是 1.4.194，那么您通过 maven 或 gradle 添加的 h2 数据库驱动程序的依赖项也应该是 1.4.194。