gta5电脑配置要求 java配置多个数据库

gta5电脑配置要求：

GTA5电脑配置要求如下：

最低配置：

操作系统：Windows 8.1 64 Bit, Windows 8 64 Bit, Windows 7 64 Bit Service Pack 1, Windows Vista 64 Bit Service Pack 2* (*支持的最低版本)

处理器：Intel Core 2 Quad CPU Q6600 @ 2.40GHz (4 CPUs) / AMD Phenom 9850 Quad-Core Processor (4 CPUs) @ 2.5GHz

内存：4 GB RAM

图形：NVIDIA 9800 GT 1GB / AMD HD 4870 1GB (DX 10, 10.1, 11)

存储空间：65 GB可用空间

附加说明：需要安装最新版本的DirectX，建议使用DirectX 11

推荐配置：

操作系统：Windows 8.1 64 Bit, Windows 8 64 Bit, Windows 7 64 Bit Service Pack 1

处理器：Intel Core i5 3470 @ 3.2GHZ (4 CPUs) / AMD X8 FX-8350 @ 4GHZ (8 CPUs)

内存：8 GB RAM

图形：NVIDIA GTX 660 2GB / AMD HD7870 2GB

存储空间：65 GB可用空间

附加说明：需要安装最新版本的DirectX，建议使用DirectX 11

java配置多个数据库：

。

1、首先，定义多个数据源，如：

```java @Configuration public class DataSourceConfig { @Bean @Primary @ConfigurationProperties(prefix = "spring.datasource.primary") public DataSource primaryDataSource(){ return DataSourceBuilder.create().build(); }

@Bean @ConfigurationProperties(prefix = "spring.datasource.secondary") public DataSource secondaryDataSource(){ return DataSourceBuilder.create().build(); }

@Bean @ConfigurationProperties(prefix = "spring.datasource.third") public DataSource thirdDataSource(){ return DataSourceBuilder.create().build(); } }

```

2、接着，为每个数据源定义SqlSessionFactory，如：

```java @Configuration public class MybatisConfig { @Bean @ConfigurationProperties(prefix = "mybatis.configuration") public org.apache.ibatis.session.Configuration globalConfiguration() { return new org.apache.ibatis.session.Configuration(); }

@Bean public SqlSessionFactory primarySqlSessionFactory(@Qualifier("primaryDataSource") DataSource dataSource, @Qualifier("globalConfiguration") org.apache.ibatis.session.Configuration configuration) throws Exception { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); bean.setConfiguration(configuration); return bean.getObject(); }

@Bean public SqlSessionFactory secondarySqlSessionFactory(@Qualifier("secondaryDataSource") DataSource dataSource, @Qualifier("globalConfiguration") org.apache.ibatis.session.Configuration configuration) throws Exception { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); bean.setConfiguration(configuration); return bean.getObject(); }

@Bean public SqlSessionFactory thirdSqlSessionFactory(@Qualifier("thirdDataSource") DataSource dataSource, @Qualifier("globalConfiguration") org.apache.ibatis.session.Configuration configuration) throws Exception { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); bean.setConfiguration(configuration); return bean.getObject(); } }

```

3、再定义MapperScannerConfigurer，如：

```java @Configuration public class MapperScannerConfig { @Bean public MapperScannerConfigurer primaryMapperScannerConfigurer() { MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer(); mapperScannerConfigurer.setSqlSessionFactoryBeanName("primarySqlSessionFactory"); mapperScannerConfigurer.setBasePackage("com.package.dao.primary"); return mapperScannerConfigurer; }

@Bean public MapperScannerConfigurer secondaryMapperScannerConfigurer() { MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer(); mapperScannerConfigurer.setSqlSessionFactoryBeanName("secondarySqlSessionFactory"); mapperScannerConfigurer.setBasePackage("com.package.dao.secondary"); return mapperScannerConfigurer; }

@Bean public MapperScannerConfigurer thirdMapperScannerConfigurer() { MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer(); mapperScannerConfigurer.setSqlSessionFactoryBeanName("thirdSqlSessionFactory"); mapperScannerConfigurer.setBasePackage("com.package.dao.third"); return mapperScannerConfigurer; } }

```

4、最后，在application.yml中配置各个数据源，如：

```yaml spring: datasource: primary: url: jdbc:mysql://localhost:3306/primary username: root password: root driver-class-name: com.mysql.jdbc.Driver secondary: url: jdbc:mysql://localhost:3306/secondary username: root password: root driver-class-name: com.mysql.jdbc.Driver third: url: jdbc:mysql://localhost:3306/third username: root password: root driver-class-name: com.mysql.jdbc.Driver ```

以上就是springboot中如何配置多个数据库的详细步骤。