-5
運行以下代碼所需的設置和jar文件是什麼？我有jdk1.8.0_05，Hadoop 2.2.0和Hive 0.12.0。請幫忙。 我想在eclipse上運行這個代碼，但它不是編譯。我新增了約15個外部罐子，但沒有使用配置單元 - 運行Java代碼時的依賴關係
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.hadoop.hive.jdbc.HiveDriver";
public static void main(String[] args) throws SQLException {
try {
Class.forName(driverName);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.exit(1);
}
Connection con = DriverManager.getConnection("jdbc:hive://localhost:10000/default", "", "");
Statement stmt = con.createStatement();
String tableName = "testHiveDriverTable";
stmt.executeQuery("drop table " + tableName);
ResultSet res = stmt.executeQuery("create table " + tableName + " (key int, value string)");
// show tables
String sql = "show tables '" + tableName + "'";
System.out.println("Running: " + sql);
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));
}
// load data into table
// NOTE: filepath has to be local to the hive server
// NOTE: /tmp/a.txt is a ctrl-A separated file with two fields per line
String filepath = "/tmp/a.txt";
sql = "load data local inpath '" + filepath + "' into table " + tableName;
System.out.println("Running: " + sql);
res = stmt.executeQuery(sql);
// select * query
sql = "select * from " + tableName;
System.out.println("Running: " + sql);
res = stmt.executeQuery(sql);
while (res.next()) {
System.out.println(String.valueOf(res.getInt(1)) + "\t" + res.getString(2));
}
// regular hive query
sql = "select count(1) from " + tableName;
System.out.println("Running: " + sql);
res = stmt.executeQuery(sql);
while (res.next()) {
System.out.println(res.getString(1));
}
}
}
錯誤::
拋出java.lang.ClassNotFoundException：org.apache.hadoop.hive.jdbc.HiveDriver 1 java.net.URLClassLoader的$。在java.net.URLClassLoader上運行（URLClassLoader.java:372）在java.net.URLClassLoader.findClass上的java.security.AccessController.doPrivileged（本地方法）上的$ 1.run（URLClassLoader.java:361）（URLClassLoader.java:360 ）at java.lang.ClassLoader.loadClass（ClassLoader.java:357）at sun.misc.Launcher $ AppClassLoader.loadClass（Launcher.java:308）at java.lang.ClassLoader.loadClass（ClassLoader.java:357）at java .lang.Class.forName0（本地方法）位於HiveJdbcClient.main上的java.lang.Class.forName（Class.java:259）（HiveJd bcClient.java:15）
什麼是產生的錯誤？ – eliasah