数据可视化第10篇：davinci扩展数据源支持

davinci默认的数据源驱动配置文件中，只配置了mysql和oracle。但是jar只有mysql的驱动jar包，所以默认davinci只支持连接mysql数据源。

一、修改数据源驱动配置文件

(1)进入davinci安装目录中的config文件夹

cd $DAVINCI3_HOME/config

(2)修改数据源驱动配置模板

mv datasource_driver.yml.example datasource_driver.yml

(3)编辑数据源驱动，并追加内容(支持kylin和impala数据源)

vi datasource_driver.yml

#kylin:

# name: kylin

# desc: kylin

# driver: org.apache.kylin.jdbc.Driver

# keyword_prefix: \"

# keyword_suffix: \"

# alias_prefix: \"

# alias_suffix: \"

#impala:

# name: impala

# desc: impala

# driver: com.cloudera.impala.jdbc41.Driver

# keyword_prefix: \"

# keyword_suffix: \"

# alias_prefix: \"

# alias_suffix: \"

二、上传对应的驱动jar包到 $DAVINCI3_HOME/lib 目录

oracle、kylin、impala的驱动jar包，我已上传到网盘中。网盘的地址，在本套文章的第1章结尾处。

三、重启davinci

sh $DAVINCI3_HOME/bin/stop-server.sh

sh $DAVINCI3_HOME/bin/start-server.sh

至此你的davinci就支持4种数据源了

四、在davinci中配置数据源的连接字符串

(1)mysql格式

jdbc:mysql://IP:端口/库名

(2)oracle格式

jdbc:oracle:thin:@IP:端口:实例名

(3)kylin格式

jdbc:kylin://IP:端口/project名称

(4)impala格式

jdbc:impala://IP:端口/库名

附：连接oracle时

错误1：

2020-01-19 18:04:05.865 WARN 28651 --- [http-nio-192.168.8.102-8080-exec-7] c.a.druid.pool.DruidAbstractDataSource : oracle.jdbc.driver.OracleDriver is deprecated.Having use oracle.jdbc.OracleDriver.

2020-01-19 18:04:05.933 INFO 28651 --- [http-nio-192.168.8.102-8080-exec-7] com.alibaba.druid.pool.DruidDataSource : {dataSource-7} inited

licationFilterChain.java:193)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at java.lang.Thread.run(Thread.java:748)

Caused by: java.lang.AbstractMethodError: oracle.jdbc.driver.T4CConnection.isValid(I)Z

at com.alibaba.druid.pool.DruidPooledConnection.isValid(DruidPooledConnection.java:1043)

at edp.core.utils.SourceUtils.getConnection(SourceUtils.java:96)

at edp.core.utils.SqlUtils.testConnection(SqlUtils.java:673)

at edp.davinci.service.impl.SourceServiceImpl.testSource(SourceServiceImpl.java:404)

解决办法：

驱动包版本的问题把ojdbc14换成ojdbc6即可

来源：oschina

链接：https://my.oschina.net/u/4362791/blog/4659296

标签

java

Oracle

impala

Apache Kylin