Hive 使用jndi方式已经在tomcat配置文件中配置好
**这个是异常信息
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:344)
at javax.naming.InitialContext.lookup(InitialContext.java:411)
at sunline.hive.utils.HiveJNDI.getConnection(HiveJNDI.java:29)
at sunline.hive.utils.HiveJNDI.main(HiveJNDI.java:37)
这个是java代码（我想在java代码中获取数据源）
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
public class HiveJNDI {
public static Connection getConnection()throws Exception{
/*Properties properties=new Properties();
properties.setProperty("java.naming.factroy.initial","org.jnp.interfaces.NamingContextFactory");
properties.setProperty("java.naming.provider.url", "localhost:8080");*/
InitialContext context = new InitialContext();
DataSource envCtx = (DataSource) context.lookup("java:comp/env/hive/datasource");
return envCtx.getConnection();
}
public static void main(String[] args) {
try {
Statement state = getConnection().createStatement();
String sql="select*from tmp_ods_web_vhlclm_ic";
ResultSet query = state.executeQuery(sql);
while(query.next()){
System.out.println(query.getString(1));
}
} catch (SQLException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
这个是tomcat 配置文件代码（这里因为我需要连接mysql数据源，与hive数据源，两个同时配置是否会有影响？name不同即可吗？）
driverClassName="org.apache.hive.jdbc.HiveDriver"
password="hive"
username="hive"
maxWait="10000"
maxIdle="30"
maxActive="100"
type="javax.sql.DataSource"
auth="Container"
name="hive/datasource"/>
