Beiträge von nphs

init:
deps-jar:
Compiling 1 source file to C:\Dokumente und Einstellungen\advanced\JavaApplication5\build\classes
compile-single:
run-single:
java.sql.SQLException: Unknown initial character set index '48' received from server. Initial client character set can be forced via the 'characterEncoding' property.
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910)
        at com.mysql.jdbc.Connection.configureClientCharacterSet(Connection.java:2345)
        at com.mysql.jdbc.Connection.initializePropsFromServer(Connection.java:3913)
        at com.mysql.jdbc.Connection.createNewIO(Connection.java:2683)
        at com.mysql.jdbc.Connection.<init>(Connection.java:1531)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
        at java.sql.DriverManager.getConnection(DriverManager.java:525)
        at java.sql.DriverManager.getConnection(DriverManager.java:171)
        at Jdbc01.main(Jdbc01.java:25)
BUILD SUCCESSFUL (total time: 2 seconds)

import java.sql.*;


public class sql {

    public static void main (String[] args) {
    // JDBC
    Connection           connection = null;
    Statement            statement = null;

    // connecten
    System.out.println("connecting...");

    try {

        // Verbindung zu MySql

        // Treiber festlegen
        Class.forName("com.mysql.jdbc.Driver");

        // Verbindung aufbauen
        // DB-Name, Kennung, Password
        connection = DriverManager.getConnection
                ("jdbc:mysql://localhost/laender","root","mietz");
        // Statement für Sql-Befehle erzeugen
        statement = connection.createStatement();
    }

    catch (ClassNotFoundException err) {
        System.err.println("/nDB-Driver nicht gefunden");
        System.err.println(err);
    }

    catch (SQLException err) {
        System.err.println("\nConnect nicht moeglich");
        System.err.println(err);
    }

    }

}

init:
deps-jar:
Compiling 1 source file to C:\Dokumente und Einstellungen\db\mySql\build\classes
compile-single:
run-single:
connecting...


Connect nicht moeglich
java.sql.SQLException: Unknown initial character set index '48' received from server. Initial client character set can be forced via the 'characterEncoding' property.
BUILD SUCCESSFUL (total time: 0 seconds)

import java.sql.*;


public class Jdbc01 {
  public static void main(String args[]) {
    try {
      Statement stmt;
      ResultSet rs;


      //Register the JDBC driver
      Class.forName("com.mysql.jdbc.Driver");


      //Define URL of database server for database named
      // JunkDB by selecting one of the following
      // statements.  I believe that port 1114 is the
      // standard database server port, but I'm not
      // certain.  This value along with the user name and
      // some other information is specified in a file
      // named msql.conf in the Hughes directory which is
      // the installation directory for the mSQL database.
      String url = "jdbc:msql://localhost/laender";
      //String url = "jdbc:msql://localhost:1114/JunkDB";




      //Get a connection to the database
      Connection con = DriverManager.getConnection(url,
                                            "root", "mietz");
      //Display URL and connection information
      System.out.println("URL: " + url);
      System.out.println("Connection: " + con);


      //Get a Statement object
      stmt = con.createStatement();


      //As a precaution, delete myTable if it already
      // exists as residue from a previous run.  Otherwise,
      // if the table already exists and an attempt is made
      // to create it, an exception will be thrown.
      try{
        stmt.executeUpdate("DROP TABLE myTable");
      }catch(Exception e){
        System.out.print(e);
        System.out.println("No existing table to delete");
      }//end catch


      //Create a table in the database named myTable.
      stmt.executeUpdate("CREATE TABLE myTable ("
              + "test_id int,test_val char(15) not null)");


      //Insert some values into the table
      stmt.executeUpdate("INSERT INTO myTable ("
                   + "test_id, test_val) VALUES(1,'One')");
      stmt.executeUpdate("INSERT INTO myTable ("
                   + "test_id, test_val) VALUES(2,'Two')");
      stmt.executeUpdate("INSERT INTO myTable ("
                 + "test_id, test_val) VALUES(3,'Three')");
      stmt.executeUpdate("INSERT INTO myTable ("
                  + "test_id, test_val) VALUES(4,'Four')");
      stmt.executeUpdate("INSERT INTO myTable ("
                  + "test_id, test_val) VALUES(5,'Five')");


      //Get another statement object.  This version is
      // compatible with either JDK 1.1 or JDK 1.2, but
      // does not support the rs.absolute(2) statement used
      // later in the JDK 1.2 version.
      stmt = con.createStatement();




/*
      //Get another statement object initialized as shown.
      // This version is compatible with JDK 1.2 but is not
      // compatible with JDK 1.1.  This version is required
      // to support the rs.absolute(2) statement later.
      stmt = con.createStatement(ResultSet.
                               TYPE_SCROLL_INSENSITIVE,
                               ResultSet.CONCUR_READ_ONLY);
*/
      //Query the database, storing the result in an object
      // of type ResultSet
      rs = stmt.executeQuery(
               "SELECT * from myTable ORDER BY test_id");


      //Use the methods of class ResultSet in a loop
      // to display all of the data in the database.
      System.out.println("Display all results:");
      while(rs.next()) {
        int theInt= rs.getInt("test_id");
        String str = rs.getString("test_val");
        System.out.println("\ttest_id= " + theInt
                                       + "\tstr = " + str);
      }//end while loop


/*
      //This block of code only works under JDK 1.2.
      // The absolute() method is not supported by JDK 1.1.
      System.out.println("Display row number 2:");
      if( rs.absolute(2) ) {
        int theInt= rs.getInt("test_id");
        String str = rs.getString("test_val");
        System.out.println("\ttest_id= " + theInt
                                       + "\tstr = " + str);
      }//end if
      //End block supported only by JDK 1.2.
*/
      //Delete the table and close the connection to the
      // database
      stmt.executeUpdate("DROP TABLE myTable");
      con.close();
    }catch( Exception e ) {
      e.printStackTrace();
    }//end catch
  }//end main
}//end class Jdbc01