Dear All:
We just installed and configured hive 1.2.1 and Hadoop on Ubuntu,
Everything worked fine and we can query table from hive>
But when we tested jdbc from eclipse on windows client, there’re errors as
follows, any advice would be appreciated,
Thanks
Joe
java.lang.ClassNotFoundException: org.apache.hive.jdbc.HiveDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:188)
at MyHadoopProject.Hadoop_2_7_1.HiveJdbcClient.main(HiveJdbcClient.java:17)
Java source code:
package MyHadoopProject.Hadoop_2_7_1;
import java.sql.SQLException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.DriverManager;
public class HiveJdbcClient {
private static String driverName =
"org.apache.hive.jdbc.HiveDriver";
public static void main(String[] args)
throws SQLException {
try {
Class.forName(driverName);
} catch (ClassNotFoundException e) {
e.printStackTrace();
System.exit(1);
}
// 參數是thrift的host:port、mysql帳號與密碼
Connection con = DriverManager.getConnection(
"jdbc:hive2://192.168.112.172:10000/default",
"test", "test");
Statement stmt = con.createStatement();
String tableName = "TestJDBCTable";
// 刪掉已存在的table
stmt.execute("drop table if exists " + tableName);
// 建立TestJDBCTable table
stmt.execute("create table " + tableName +
" (key int, value string) row format
delimited fields terminated by '\t'");
System.out.println("Create table success!");
// show tables
String sql = "show tables '" + tableName + "'";
System.out.println("Running: " + sql);
ResultSet res = stmt.executeQuery(sql);
if (res.next()) {
System.out.println(res.getString(1));
}
// describe table
sql = "describe " + tableName;
System.out.println("Running: " + sql);
res = stmt.executeQuery(sql);
while (res.next()) {
System.out.println(res.getString(1) + "\t" + res.getString(2));
}
// 將StudentFile資料匯入TestJDBCTable
String filepath = "/home/csi/StudentFile.txt";
sql = "load data local inpath '" + filepath + "' into table " +
tableName;
System.out.println("Running: " + sql);
stmt.execute(sql);
sql = "select * from " + tableName;
res = stmt.executeQuery(sql);
while (res.next()) {
System.out.println(String.valueOf(res.getInt(1)) + "\t"
+ res.getString(2));
}
}
}
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