HA-JDBC 集成与 Spring 启动 JPA

Question

我正在尝试将 HA-JDBC 与 Spring 引导 JPA 集成。任何人都可以帮助将 Ha-Jdbc 与 spring 引导 JPA 集成，

import java.util.Arrays;

import javax.naming.NamingException;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import net.sf.hajdbc.SimpleDatabaseClusterConfigurationFactory;
import net.sf.hajdbc.cache.simple.SimpleDatabaseMetaDataCacheFactory;
import net.sf.hajdbc.dialect.oracle.OracleDialectFactory;
import net.sf.hajdbc.distributed.jgroups.JGroupsCommandDispatcherFactory;
import net.sf.hajdbc.sql.DataSource;
import net.sf.hajdbc.sql.DataSourceDatabase;
import net.sf.hajdbc.sql.DataSourceDatabaseClusterConfiguration;
import net.sf.hajdbc.state.simple.SimpleStateManagerFactory;

@Configuration
public class HAJdbcConfig
{
    @Bean
    public DataSourceDatabase db1()
    {
        DataSourceDatabase db1 = new DataSourceDatabase();
        db1.setId("db1");
        db1.setLocation("database url");
        db1.setUser("username");
        db1.setPassword("password");
        return db1;
    }

    @Bean
    public DataSourceDatabase db2()
    {
        DataSourceDatabase db1 = new DataSourceDatabase();
        db1.setId("db1");
        db1.setLocation("database url");
        db1.setUser("username");
        db1.setPassword("password");
        return db1;
    }


    @Bean
    public DataSourceDatabaseClusterConfiguration config() throws NamingException
    {
        DataSourceDatabaseClusterConfiguration config = new DataSourceDatabaseClusterConfiguration();
        config.setDatabases(Arrays.asList(db1(), db2()));
        config.setDialectFactory(new OracleDialectFactory());
        config.setDatabaseMetaDataCacheFactory(new SimpleDatabaseMetaDataCacheFactory());
        SimpleStateManagerFactory state = new SimpleStateManagerFactory();
        config.setStateManagerFactory(state);
        config.setDispatcherFactory(new JGroupsCommandDispatcherFactory());
        return config;
    }

    @Bean
    public javax.sql.DataSource primaryDataSource() throws NamingException
    {
        DataSource ds = new DataSource();
        ds.setCluster("mycluster");
        //ds.setConfig("ha-jdbc-mycluster.xml");
        ds.setConfigurationFactory(
                new SimpleDatabaseClusterConfigurationFactory<javax.sql.DataSource, DataSourceDatabase>(config()));

        return ds;

    }

}

Error retrieving database meta-data; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta-data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Failed to perform naming lookup of jdbc:oracle:thin:@//localhost:1521/orcl

Answer 1

我对 HA-JDBC 没有太多经验，但也许我可以让您了解情况。 您永远不会声明驱动程序，并且查找试图创建一个 Oracle URL 连接 ( dbc:oracle:thin:@//localhost:1521/orcl )。 我希望它能让你知道在哪里看。

Answer 2

我认为您的 jdbc url 有问题。

在您的情况下，格式为jdbc:oracle:<drivertype>:@<database>

jdbc:oracle:thin:@localhost:1521/orcl

在主机之前没有// 。

Answer 3

您可以使用数据库的服务名称吗？ 简单连接URL是jdbc:oracle:thin:@myhost:1521/myorcldbservicename。 此外，您还可以查看示例SpringBootApp作为示例。