spring boot 基础篇 -- 阿里多数据源
这块是比较基础的配置,阿里数据库配置还是比较好用的,并且可以用来监控数据源的情况。废话不多说,下面看代码。
基于maven项目,在pom.xml中添加引用:
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.11</version>
</dependency>
配置文件如下:
server.port=9090
logging.level.tk.mybatis=TRACE druid1.type=com.alibaba.druid.pool.DruidDataSource
druid1.url=jdbc:mysql://192.168.0.190:3306/bestPractices
druid1.driver-class=com.mysql.jdbc.Driver
druid1.username=root
druid1.password=youeDATA2016_
druid1.initial-size=1
druid1.min-idle=1
druid1.max-active=20
druid1.test-on-borrow=true
druid1.filters=stat,wall,log4j
druid1.poolPreparedStatements=true
druid1.datasource.maxPoolPreparedStatementPerConnectionSize=20
druid1.datasource.logAbandoned=true druid2.type=com.alibaba.druid.pool.DruidDataSource
druid2.url=jdbc:mysql://192.168.0.190:3306/bestPracticesTwo
druid2.driver-class=com.mysql.jdbc.Driver
druid2.username=root
druid2.password=youeDATA2016_
druid2.initial-size=1
druid2.min-idle=1
druid2.max-active=20
druid2.test-on-borrow=true
druid2.filters=stat,wall,log4j
druid2.poolPreparedStatements=true
druid2.datasource.maxPoolPreparedStatementPerConnectionSize=20
druid2.datasource.logAbandoned=true spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp
mybatis.type-aliases-package=bp.model
mybatis.mapper-locations=classpath:mybatis/mybatis-config.xml
mapper.mappers=bp.util.MyMapper
#mapper.not-empty=false
#mapper.identity=MYSQL
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.supportMethodsArguments=true
pagehelper.dialect=com.github.pagehelper.dialect.helper.MySqlDialect
pagehelper.params=count=countSql
pagehelper.autoDialect=true
pagehelper.closeConn=false
pagehelper.offsetAsPageNum=true spring.http.encoding.force=true
spring.redis.database= 0
spring.redis.host= 192.168.237.128
spring.redis.port= 6379
spring.redis.pool.max-active= 8
spring.redis.pool.max-idle= 8
spring.redis.pool.max-wait=-1
spring.redis.pool.min-idle=0
spring.redis.timeout= 1500
配置文件:数据源1
package bp.config; import java.sql.SQLException; import javax.sql.DataSource; 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.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager; import com.alibaba.druid.pool.DruidDataSource; /**
* 数据源1
*/
@Configuration
@EnableConfigurationProperties(DruidProperties1.class)
@AutoConfigureBefore(DataSourceAutoConfiguration.class)
@ConditionalOnClass(DruidDataSource.class)
@MapperScan(basePackages = "bp.mapper.mapper1", sqlSessionTemplateRef = "SqlSessionTemplate1")
public class DataSource1Config {
@Autowired
private DruidProperties1 properties; @Bean(name = "DataSource1")
@ConditionalOnProperty(prefix = "druid1", name = "url")
@Primary
public DataSource dataSource() throws SQLException {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(properties.getUrl());
dataSource.setUsername(properties.getUsername());
dataSource.setPassword(properties.getPassword());
dataSource.setFilters(properties.getFilters());
if (properties.getInitialSize() > 0) {
dataSource.setInitialSize(properties.getInitialSize());
}
if (properties.getMinIdle() > 0) {
dataSource.setMinIdle(properties.getMinIdle());
}
if (properties.getMaxActive() > 0) {
dataSource.setMaxActive(properties.getMaxActive());
}
dataSource.setTestOnBorrow(properties.isTestOnBorrow());
try {
dataSource.init();
} catch (SQLException e) {
throw new RuntimeException(e);
}
return dataSource;
} @Bean(name = "SqlSessionFactory1")
@Primary
public SqlSessionFactory test1SqlSessionFactory(@Qualifier("DataSource1") DataSource dataSource) throws Exception {
SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
bean.setDataSource(dataSource);
bean.setConfigLocation(resolver.getResource("classpath:mybatis/mybatis-config.xml"));
bean.setMapperLocations(resolver.getResources("bp/mapper/mapper1/*.xml"));
return bean.getObject();
} @Bean(name = "TransactionManager1")
@Primary
public DataSourceTransactionManager test1TransactionManager(@Qualifier("DataSource1") DataSource dataSource) {
return new DataSourceTransactionManager(dataSource);
} @Bean(name = "SqlSessionTemplate1")
@Primary
public SqlSessionTemplate test1SqlSessionTemplate(@Qualifier("SqlSessionFactory1") SqlSessionFactory sqlSessionFactory) throws Exception {
return new SqlSessionTemplate(sqlSessionFactory);
} }
数据源2:
package bp.config; import java.sql.SQLException; 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.aop.framework.autoproxy.BeanNameAutoProxyCreator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager; import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.alibaba.druid.support.spring.stat.DruidStatInterceptor; import javax.annotation.Resource;
import javax.sql.DataSource; /**
* 数据源2
*/
@Configuration
@EnableConfigurationProperties(DruidProperties2.class)
@AutoConfigureBefore(DataSourceAutoConfiguration.class)
@ConditionalOnClass(DruidDataSource.class)
@MapperScan(basePackages = "bp.mapper.mapper2", sqlSessionTemplateRef = "SqlSessionTemplate2")
public class DataSource2Config { @Autowired
private DruidProperties2 properties; @Bean(name = "DataSource2")
@ConditionalOnProperty(prefix = "druid2", name = "url")
public DataSource dataSource() throws SQLException {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(properties.getUrl());
dataSource.setUsername(properties.getUsername());
dataSource.setPassword(properties.getPassword());
dataSource.setFilters(properties.getFilters());
if (properties.getInitialSize() > 0) {
dataSource.setInitialSize(properties.getInitialSize());
}
if (properties.getMinIdle() > 0) {
dataSource.setMinIdle(properties.getMinIdle());
}
if (properties.getMaxActive() > 0) {
dataSource.setMaxActive(properties.getMaxActive());
}
dataSource.setTestOnBorrow(properties.isTestOnBorrow());
try {
dataSource.init();
} catch (SQLException e) {
throw new RuntimeException(e);
}
return dataSource;
} @Bean(name = "SqlSessionFactory2")
public SqlSessionFactory test2SqlSessionFactory(@Qualifier("DataSource2") DataSource dataSource) throws Exception {
SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
bean.setDataSource(dataSource);
bean.setConfigLocation(resolver.getResource("classpath:mybatis/mybatis-config.xml"));
bean.setMapperLocations(resolver.getResources("bp/mapper/mapper2/*.xml"));
return bean.getObject();
} @Bean(name = "TransactionManager2")
public DataSourceTransactionManager test2TransactionManager(@Qualifier("DataSource2") DataSource dataSource) {
return new DataSourceTransactionManager(dataSource);
} @Bean(name = "SqlSessionTemplate2")
public SqlSessionTemplate test2SqlSessionTemplate(@Qualifier("SqlSessionFactory2") SqlSessionFactory sqlSessionFactory) throws Exception {
return new SqlSessionTemplate(sqlSessionFactory);
} }
启动项目就发现是双数据源了
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