我正在尝试连接到Hive2数据库但是我收到以下错误:
java.lang.NoSuchFieldError:HIVE_SERVER2_TRANSPORT_MODE
这是我正在尝试运行的代码。基本上,我只是尝试连接到hive2数据库并使用用户定义的查询结果填充jTable:
import java.sql.Connection;
import org.apache.hadoop.hive.jdbc.*;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.*;
import javax.swing.JTable;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.util.Vector;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import java.awt.Cursor;
import javax.swing.*;
import net.proteanit.sql.DbUtils;
import org.apache.hive.jdbc.*;
import org.apache.hive.jdbc.Utils;
import org.apache.hive.*;
import org.apache.hive.service.*;
import org.apache.http.*;
import org.apache.hive.service.CompositeService;
import org.apache.hive.service.cli.CLIService;
import org.apache.hive.service.cli.thrift.*;
import org.apache.hive.service.server.*;
import org.apache.hadoop.hive.conf.HiveConf;
public class SQLSelect extends javax.swing.JFrame {
/**
* Creates new form SQLSelect
*/
ResultSet r;
Statement s;
public SQLSelect() {
initComponents();
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
Cursor cursor = Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR);
setCursor(cursor);
try {
Class.forName("org.apache.hive.jdbc.HiveDriver");
//Class.forName("org.apache.hadoop.hive.jdbc.HiveDriver");
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.getMessage();
}
try {
String locationString = "jdbc:hive2://" + jTextField1.getText() + ":" + jTextField2.getText();
String userString = jTextField3.getText();
char password[] = jPasswordField1.getPassword();
String pString = new String(password);
System.out.println(locationString + userString + pString);
Connection conn = DriverManager.getConnection(locationString,userString,pString);
//Connection conn = DriverManager.getConnection("jdbc:hive://76.99.192.2:9999","user","password");
s = conn.createStatement();
r = s.executeQuery(jTextArea1.getText());
//System.out.println(r.getNString(1));
}
catch (Exception e)
{
setCursor(Cursor.DEFAULT_CURSOR);
JOptionPane.showMessageDialog(null, e.getMessage(), "SQL Error", JOptionPane.ERROR_MESSAGE);
jLabel9.setText(e.getMessage());
}
try {
MainPanel resultsPanel = new jdbctohive.MainPanel();
resultsPanel.jTable1.setModel(DbUtils.resultSetToTableModel(r));
resultsPanel.setTitle("Hive SQL Management Studio");
resultsPanel.setVisible(true);
setCursor(Cursor.DEFAULT_CURSOR);
this.setVisible(false);
}
catch (Exception e)
{
setCursor(Cursor.DEFAULT_CURSOR);
}
非常感谢任何帮助!
答案 0 :(得分:0)
我终于能够连接了。我之前的声明建议使用“; auth = noSasl”,结果证明这是错误的。经过多次尝试,这是最终有效的代码。当我在windows中工作时,我遇到了需要winutils.exe的Hadoop Win版本的问题。由于HortonWorks在其产品的1.3版本中有Win实现,因此我将其下载并从.MSI文件中提取文件。如果在linux中工作,你可能不需要这个。我找到的一个键是实现jdbc和hadoop日志记录,因为没有这些,我简单地被卡在getConnection上永远不会返回...但是,有一些潜在的错误,我只是假设word返回为stacktrace,但没有。祝好运。
帮助记录的文件:C:/temp/log.properties .LEVEL =严重
oracle.jdbc.level = INFO
oracle.jdbc.handlers = java.util.logging.ConsoleHandler
java.util.logging.ConsoleHandler.level = INFO
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
Logger logger = org.apache.log4j.Logger.getRootLogger();
logger.setLevel(Level.INFO);
try {
Class.forName("org.apache.hive.jdbc.HiveDriver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
System.exit(1);
} catch (Exception e){
e.printStackTrace();
}
try{
File propFile = new File("C:/temp/log.properties");
LogManager logManager = LogManager.getLogManager();
logManager.readConfiguration(new FileInputStream(propFile));
DriverManager.setLogWriter(new PrintWriter(System.err));
Logger l2 = Logger.getLogger("org.apache.hadoop.util.Shell");
Logger l3 = Logger.getLogger("java.sql.DriverManager");
Layout simple = new SimpleLayout();
Appender newAppender = new ConsoleAppender(simple);
logger.addAppender(newAppender);
logger.setLevel(Level.ALL);
l2.setLevel(Level.ALL);
l2.addAppender(newAppender);
l3.setLevel(Level.ALL);
l3.addAppender(newAppender);
System.setProperty("HADOOP_HOME", "C:\\Development\\hadoopCore\\hadoop-2.2.0");
logger.debug("Logging works");
Connection con = DriverManager.getConnection("jdbc:hive2://192.168.218.152:10000/default", "", "");//Hortonworks Hive ODBC Driver
if (con != null)
con.close();
System.out.println("got the connection");