springboot 整和 presto

参考原文：https://blog.csdn.net/Sunhighlight/article/details/89044374

依赖：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.16.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

   <dependency>
      <groupId>com.facebook.presto</groupId>
      <artifactId>presto-jdbc</artifactId>
      <version>0.203</version>
    </dependency>

配置application.yml文件

 datasource:
    presto:
      name: presto
      type: org.apache.tomcat.jdbc.pool.DataSource
      driver-class-name: com.facebook.presto.jdbc.PrestoDriver
      url: jdbc:presto://192.168.18.129:8881/test/sea
      username: root

注意：
(1)本项目其他数据源使用的是阿里巴巴druid数据库连接池，但是该连接池不支持PrestoDB，如果使用会爆出：java.lang.IllegalStateException: dbType not support错误，故我们用org.apache.tomcat.jdbc.pool.DataSource连接池

3.3创建数据源配置类

@Configuration
public class GlobalDataSourceConfiguration {

  private static Logger LOG = LoggerFactory.getLogger(GlobalDataSourceConfiguration.class);

  @Bean(name = "prestoDataSource")
  @ConfigurationProperties(prefix = "datasource.presto")
  public DataSource prestoDataSource() {
    LOG.info("-------------------- presto init ---------------------");
    return DataSourceBuilder.create().build();
  }

  @Bean(name = "prestoTemplate")
  public JdbcTemplate prestoJdbcTemplate(@Qualifier("prestoDataSource") DataSource dataSource) {
    return new JdbcTemplate(dataSource);
  }

}

4.3使用prestoDB直接执行SQL

   @Autowired
   @Qualifier("prestoTemplate")
    private JdbcTemplate prestoTemplate;

   List<Map<String, Object>> result =  prestoTemplate.queryForList("sql");