java - JPA - EntityManagerFactory 指向本地主机

Question

我有以下代码。此代码负责从远程位置连接到 MySQL 数据库。但问题是，代码正在尝试连接到本地主机上的 MySQL。

实际收到的异常是:引起原因:java.sql.SQLException:用户“my_user”@“localhost_ip”访问被拒绝(使用密码:YES)

我在我的项目中使用 Spring、JPA 和 hibernate。

@Configuration("persistenceContext")
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactory",
                    transactionManagerRef = "jpaTransactionManager",
                    basePackages = {"my.repository"})
@EnableTransactionManagement
public class PersistenceContext {

@Autowired
private DataSourcePropertyConfig dataSourcePropertyConfig;

public BasicDataSource datasource() {   
    final BasicDataSource dataSource = new BasicDataSource();

    dataSource.setDriverClassName(dataSourcePropertyConfig.getMySqlDriverClassName());
    dataSource.setUsername(dataSourcePropertyConfig.getMySqlDBUsername());
    dataSource.setPassword(dataSourcePropertyConfig.getMySqlDBPassword());
    dataSource.setUrl("jdbc:mysql://<host>:<port>/<database>");

    dataSource.setMaxActive(10);
    dataSource.setMaxIdle(5);
    dataSource.setInitialSize(5);
    dataSource.setValidationQuery("SELECT 1");

    return dataSource;
}

public JpaVendorAdapter jpaVendorAdapter() {
    final HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
    hibernateJpaVendorAdapter.setShowSql(true);
    hibernateJpaVendorAdapter.setGenerateDdl(false);
    hibernateJpaVendorAdapter.setDatabase(Database.MYSQL);
    return hibernateJpaVendorAdapter;
}


@Bean(name = "entityManagerFactory")
public EntityManagerFactory entityManagerFactory() {
    final LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
    entityManagerFactoryBean.setDataSource(this.datasource());
    entityManagerFactoryBean.setJpaVendorAdapter(this.jpaVendorAdapter());
    entityManagerFactoryBean.setPackagesToScan("my.entity");
    entityManagerFactoryBean.afterPropertiesSet();
    return entityManagerFactoryBean.getObject();
}


@Bean(name = "jpaTransactionManager")
@Primary
public PlatformTransactionManager jpaTransactionManager() {
    return new JpaTransactionManager(entityManagerFactory());
}

问候阿努杰

Answer 1

错误信息

Access denied for user 'my_user'@'localhost_ip' (using password: YES)

并不表示您正在连接到本地主机 IP 地址上的数据库，而是表示您正在从本地主机的 IP 地址连接。

至于为什么您收到访问被拒绝错误:很可能您的数据库中没有与 'my_user'@'localhost_ip' 或 'my_user 匹配的用户记录'@'%'。