案例: springboot 同时集成hive和mysql
Posted 袁义锐
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1.配置maven( pom.xml文件 ):
1.1 集成hive:
<!-- hive -->
<dependency>
<groupId>org.apache.hive</groupId>
<artifactId>hive-jdbc</artifactId>
<version>1.1.0</version>
<exclusions>
<exclusion>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<exclusions>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</exclusion>
<exclusion>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</exclusion>
</exclusions>
<version>2.7.3</version>
</dependency>
1.2 集成mysql:
<!-- alibaba的druid数据库连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.46</version>
<!--<version>5.1.30</version>-->
</dependency>
2.配置数据源(.yml文件)
2.1 hive 数据源:
#hive数据库配置
hive:
datasource:
druid:
username: hive
password: hive
driverClassName: org.apache.hive.jdbc.HiveDriver
url: jdbc:hive2://IP:端口/default
initialSize: 10
maxActive: 50
removeAbandoned: true
removeAbandonedTimeout: 60
maxWait: 60000
2.2 mysql 数据源:
mysql:
datasource:
druid:
url: jdbc:mysql://IP:端口/数据库名称?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=UTC&useSSL=false
username: 用户名
password: 密码
driver-class-name: com.mysql.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
#配置初始化大小/最小/最大
initial-size: 1
min-idle: 1
max-active: 20
#获取连接等待超时时间
max-wait: 60000
#间隔多久进行一次检测,检测需要关闭的空闲连接
time-between-eviction-runs-millis: 60000
#一个连接在池中最小生存的时间
min-evictable-idle-time-millis: 300000
validation-query: SELECT 'x'
test-while-idle: true
test-on-borrow: false
test-on-return: false
pool-prepared-statements: false
max-pool-prepared-statement-per-connection-size: 20
3.编写多数据源代码:
3.1 hive 数据源连接代码:
@Configuration
public class HiveDataSourceConfig
@Bean(name = "hiveDataSource")
@ConfigurationProperties(prefix = "hive.datasource.druid")//和yml中的配置项,呼应
public DataSource dataSource()
return DruidDataSourceBuilder.create().build();
@Bean(name = "hiveJdbcTemplate")
public JdbcTemplate getJdbcTemplate(@Qualifier("hiveDataSource") DataSource dataSource)
return new JdbcTemplate(dataSource);
/**
* 获取hive连接
*/
public Connection getHiveConnection() throws SQLException
return this.dataSource().getConnection();
3.2 mysql 数据源连接代码:
@Configuration
@MapperScan(basePackages = "com.web.dao", sqlSessionTemplateRef = "mySqlSqlSessionTemplate" ,sqlSessionFactoryRef = "mySqlSqlSessionFactory")
public class MySqlDataSourceConfig
@Primary
@Bean(name = "mySqlDataSource")
@ConfigurationProperties(prefix = "mysql.datasource.druid")
public DataSource mySqlDataSource()
return DruidDataSourceBuilder.create().build();
@Primary
@Bean(name = "mySqlTransactionManager")
public DataSourceTransactionManager mySqlTransactionManager(@Qualifier("mySqlDataSource") DataSource dataSource)
return new DataSourceTransactionManager(dataSource);
@Bean
@ConfigurationProperties(prefix = "mybatis.configuration")//需要和yml中的mybatis配置对应
public org.apache.ibatis.session.Configuration configuration()
return new org.apache.ibatis.session.Configuration();
@Primary
@Bean(name = "mySqlSqlSessionFactory")
public SqlSessionFactory mySqlSqlSessionFactory(@Qualifier("mySqlDataSource") DataSource dataSource,org.apache.ibatis.session.Configuration configuration) throws Exception
SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
bean.setConfiguration(configuration);
bean.setDataSource(dataSource);
bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
return bean.getObject();
@Bean(name = "mySqlSqlSessionTemplate")
@Primary
public SqlSessionTemplate mySqlSqlSessionTemplate(@Qualifier("mySqlSqlSessionFactory") SqlSessionFactory sqlSessionFactory)
return new SqlSessionTemplate(sqlSessionFactory);
3.2中需要补充mybatis的扫描配置:
mybatis:
mapper-locations: classpath:mapper/*.xml
type-aliases-package: com.web.model
configuration:
log-impl: org.apache.ibatis.logging.log4j.Log4jImpl
map-underscore-to-camel-case: true
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