這篇文章帶給大家的內容是關於springboot專案配置兩個資料來源的方法，有一定的參考價值，有需要的朋友可以參考一下，希望對你有幫助。
本文主要介紹如何在一個springboot專案中配置兩個資料來源（mysql和oracle）；
1、引進相關依賴
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!--oracle 驱动 -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.1.0.7.0</version>
</dependency>當ojdbc驅動套件版本過低，會報如下圖所示錯誤，即驅動jar與資料庫版本不相容：
#2、於applicationContext.yml中配置資料源連接參數：
Spring:
datasource:
base:
driver-class-name: com.mysql.jdbc.Driver
jdbc-url: ${base.db.url}
username: ${base.db.username}
password: ${base.db.password}
oa:
driver-class-name: oracle.jdbc.driver.OracleDriver
jdbc-url: ${oa.db.urL}
username: ${oa.db.username}
password: ${oa.db.password}
hikari:
max-lifetime: 60000
login-timeout: 5
validation-timeout: 3000
connection-timeout: 60000
idle-timeout: 600003、多資料來源設定文件，讀取對應連接參數
#Package com.**.config;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import javax.sql.DataSource;
public class MultiDataSourceConfig {
@Bean (name = "primaryDataSource")
@Qualifier("primaryDataSource")
@Primary //定义主数据源
@ConfigurationProperties (prefix = "spring.datasource.Base")
public DataSource primaryDataSource () { return DataSourceBuilder.create().build (); }
@Bean (name = "secondaryDataSource")
@Qualifier ("secondaryDataSource")
@ConfigurationProperties (prefix = "spring.datasource.oa")
public DataSource secondaryDataSource () { return DataSourceBuilder.create().build (); }
}3、主資料來源配置，指定掃描對應mapper檔案以及對應xml文件，在使用mapper套件下的mapper檔案時會自動使用對應sql會話
Package com.**.config;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqLSessionFactoryBean;
import org.mybatis.spring.SqLSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframeworkcore.io.support.PathMatchingResourcePatternResolver;
import org.spr ingframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import javax.sql.DataSource;
@Configuration
@MapperScan (basePackages = "com.**.mapper", sqlSessionTemplateRef = "primarySqlSessionTemplate")
public class SqlSessionTemplate1 {
@Bean (name = "primarySqlSessionFactory")
@Primary
public SqlSessionFactory primarySqlSessionFactory (@Qualifier("primaryDataSource") DataSource dataSource)
throws Exception{
SqLSessionFactoryBean bean = new SqlSessionFactoryBean ();
bean.setDataSource (dataSource);
bean.setMapperLocations (new PathMatchingResourcePatternResolver().getResources (locationPattern: "classpath: mybatis/mapper/*. XmL"));
return bean.getObject();
}
/**
* 配置声明式事务管理器
*/
@Bean (name = "primaryTransactionManager")
@Primary
public PlatformTransactionManager primaryTransactionManager (@Qualifier("primaryDataSource") DataSource dataSource) {
return new DataSourceTransactionManager (dataSource);
}
@Bean (name = "primarySqlSessionTemplate")
@Primary
public SqlSessionTemplatel primarySqlSessionTemplate(@Qualifier("primarySqlSesionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
return new SqlSessionTemplatel(sqlSessionFactory);
}
}4、第二個資料來源配置，指定掃描對應mapper檔案以及對應xml文件，在使用mapper套件下的mapper檔案時會自動使用對應sql會話
Package com.**.config;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqLSessionFactoryBean;
import org.mybatis.spring.SqLSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.secondary;
import org.springframeworkcore.io.support.PathMatchingResourcePatternResolver;
import org.spr ingframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import javax.sql.DataSource;
@Configuration
@MapperScan (basePackages = "com.**.oraclemapper", sqlSessionTemplateRef = "secondarySqlSessionTemplate")
public class SqlSessionTemplate2 {
@Bean (name = "secondarySqlSessionFactory")
public SqlSessionFactory secondarySqlSessionFactory (@Qualifier("secondaryDataSource") DataSource dataSource)
throws Exception{
SqLSessionFactoryBean bean = new SqlSessionFactoryBean ();
bean.setDataSource (dataSource);
bean.setMapperLocations (new PathMatchingResourcePatternResolver().getResources (locationPattern: "classpath: mybatis/oraclemapper/*. XmL"));
return bean.getObject();
}
/**
* 配置声明式事务管理器
*/
@Bean (name = "secondaryTransactionManager")
public PlatformTransactionManager secondaryTransactionManager (@Qualifier("secondaryDataSource") DataSource dataSource) {
return new DataSourceTransactionManager (dataSource);
}
@Bean (name = "secondarySqlSessionTemplate")
public SqlSessionTemplatel secondarySqlSessionTemplate(@Qualifier("secondarySqlSesionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
return new SqlSessionTemplatel(sqlSessionFactory);
}
}至此，在service層可以像單一資料來源一樣使用了。
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