SpringBoot 1.5.X 配置多數據源（MySQL+SQLServer）

時間 2019-11-17

標籤 springboot 1.5.x 配置數據 mysql+sqlserver mysql sqlserver 欄目 Spring 简体版

原文原文鏈接

SpringBoot 版本 1.5.13.RELEASE，如下maven依賴中包含jpa、web、mysql驅動、sqlserver驅動、測試模塊。（按需添加）java

<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.13.RELEASE</version>
		<relativePath/> <!-- lookup parent from dao -->
	</parent>

    <dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<scope>runtime</scope>
		</dependency>
		<dependency>
			<groupId>com.microsoft.sqlserver</groupId>
			<artifactId>mssql-jdbc</artifactId>
			<scope>runtime</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

同時鏈接兩個數據庫，主數據庫爲 MySQL 8.0，從數據庫爲 SQLServer 2017，application.properties 中鏈接配置以下（SpringBoot 2.0 之前默認使用的是 tomcat 鏈接池，因此超時配置的參數能夠查閱 tomcat 鏈接池的配置）mysql

#主數據庫
spring.datasource.primary.url=jdbc:mysql://127.0.0.1:3306/dcmserver?characterEncoding=utf-8
spring.datasource.primary.username=root
spring.datasource.primary.password=*****
spring.datasource.primary.driver-class-name=com.mysql.jdbc.Driver
#從數據庫
spring.datasource.secondary.url=jdbc:sqlserver://127.0.0.1:1433;database=QZY_PACS
spring.datasource.secondary.username=sa
spring.datasource.secondary.password=*****
spring.datasource.secondary.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver

spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true
spring.jpa.properties.hibernate.max_fetch_depth=1
spring.jpa.hibernate.ddl-auto=update


#MYSQL 8小時鏈接超時配置
#驗證鏈接的有效性
spring.datasource.primary.test-while-idle=true
#獲取鏈接時候驗證，會影響性能
spring.datasource.primary.test-on-borrow=true
spring.datasource.primary.validation-query=SELECT 1 
#空閒鏈接回收的時間間隔，與test-while-idle一塊兒使用，設置5分鐘
spring.datasource.primary.time-between-eviction-runs-millis=300000
#鏈接池空閒鏈接的有效時間 ，設置30分鐘
spring.datasource.primary.min-evictable-idle-time-millis=1800000

#SQLServer 鏈接超時配置
#驗證鏈接的有效性
spring.datasource.secondary.test-while-idle=true
#獲取鏈接時候驗證，會影響性能
spring.datasource.secondary.test-on-borrow=true
spring.datasource.secondary.validation-query=SELECT 1 
#空閒鏈接回收的時間間隔，與test-while-idle一塊兒使用，設置5分鐘
spring.datasource.secondary.time-between-eviction-runs-millis=300000
#鏈接池空閒鏈接的有效時間 ，設置30分鐘
spring.datasource.secondary.min-evictable-idle-time-millis=1800000

建立鏈接池 web

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

import javax.sql.DataSource;

@Configuration
public class DataSourceConfig {

    @Bean(name = "primaryDataSource")
    @Primary
    @ConfigurationProperties(prefix = "spring.datasource.primary")
    public DataSource primaryDataSource() {
        return DataSourceBuilder.create().build();
    }

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

配置主數據庫鏈接池spring

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.persistence.EntityManager;
import javax.sql.DataSource;
import java.util.Map;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef = "entityManagerFactoryPrimary",
        transactionManagerRef = "transactionManagerPrimary",
        basePackages = {"com.***.***.mysql.dao"}) //設置Repository所在位置
public class PrimaryConfig {

    @Autowired
    @Qualifier("primaryDataSource")
    private DataSource primaryDataSource;

    @Autowired
    private JpaProperties jpaProperties;

    @Primary
    @Bean(name = "entityManagerPrimary")
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactoryPrimary(builder).getObject().createEntityManager();
    }

    @Primary
    @Bean(name = "entityManagerFactoryPrimary")
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryPrimary(EntityManagerFactoryBuilder builder) {
        return builder
                .dataSource(primaryDataSource)
                .properties(getVendorProperties(primaryDataSource))
                .packages("com.***.***.mysql.model") //設置實體類所在位置
                .persistenceUnit("primaryPersistenceUnit")
                .build();
    }

    private Map<String, String> getVendorProperties(DataSource dataSource) {
        return jpaProperties.getHibernateProperties(dataSource);
    }

    @Primary
    @Bean(name = "transactionManagerPrimary")
    public PlatformTransactionManager transactionManagerPrimary(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactoryPrimary(builder).getObject());
    }
}

配置從數據庫鏈接池sql

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.persistence.EntityManager;
import javax.sql.DataSource;
import java.util.Map;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef = "entityManagerFactorySecondary",
        transactionManagerRef = "transactionManagerSecondary",
        basePackages = {"com.***.***.sqlserver.dao"}) //設置Repository所在位置
public class SecondaryConfig {

    @Autowired
    @Qualifier("secondaryDataSource")
    private DataSource secondaryDataSource;

    @Autowired
    private JpaProperties jpaProperties;

    @Bean(name = "entityManagerSecondary")
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactorySecondary(builder).getObject().createEntityManager();
    }

    @Bean(name = "entityManagerFactorySecondary")
    public LocalContainerEntityManagerFactoryBean entityManagerFactorySecondary(EntityManagerFactoryBuilder builder) {
        return builder
                .dataSource(secondaryDataSource)
                .properties(getVendorProperties(secondaryDataSource))
                .packages("com.***.***.sqlserver.model") //設置實體類所在位置
                .persistenceUnit("secondaryPersistenceUnit")
                .build();
    }

    private Map<String, String> getVendorProperties(DataSource dataSource) {
        return jpaProperties.getHibernateProperties(dataSource);
    }

    @Bean(name = "transactionManagerSecondary")
    PlatformTransactionManager transactionManagerSecondary(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactorySecondary(builder).getObject());
    }
}

至此多數據源配置完成，此方法也適用於其餘數據庫配置，只需修改application.properties中的數據源配置便可。數據庫