/*
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*/
package JDBCTest;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Liu Yuanyuan
*/
public class ConnDemo
{
public static void main(String[] args)
{
String driver = "org.postgresql.Driver";
String url = "jdbc:postgresql://" + "192.168.100.125" + ":" + "5432" + "/" + "postgres";
try
{
Class.forName(driver);
System.out.println("success find class");
try
{
Connection conn = DriverManager.getConnection(url, "pg93", "pg93");
System.out.println("success connect");
PreparedStatement stmt;
ResultSet rres;
try
{
String sql = "SELECT * FROM lyy";
stmt = conn.prepareStatement(sql);
rres = stmt.executeQuery();
ResultSetMetaData mdata = rres.getMetaData();
//得到表数据
while (rres.next())
{
for (int ii = 1; ii <= rres.getMetaData().getColumnCount(); ii++)
{
System.out.print(rres.getObject(ii) + " ");
}
System.out.println("");
}
}
catch (Exception ex)
{
System.out.println("Error: " + ex.getMessage());
ex.printStackTrace(System.out);
}
}
catch (Exception ex)
{
System.out.println("Error: " + ex.getMessage());
ex.printStackTrace(System.out);
}
}
catch (ClassNotFoundException ex)
{
Logger.getLogger(ConnDemo.class.getName()).log(Level.SEVERE, null, ex);
}
}
}