Create WebRowSet : WebRowSet « Database SQL JDBC « Java






Create WebRowSet


import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

import javax.sql.RowSetMetaData;
import javax.sql.rowset.WebRowSet;

import com.sun.rowset.WebRowSetImpl;

public class Main {
  public static void main(String[] args) throws Exception {
    Connection conn = getHSQLConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("create table survey (id int,name varchar);");
    st.executeUpdate("create view surveyView as (select * from survey);");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,'anotherValue')");

    String sqlQuery = "SELECT * FROM survey";
    WebRowSet webRS = new WebRowSetImpl();
    webRS.setCommand(sqlQuery);
    webRS.execute(conn);

    // create RowSetMetaData object
    RowSetMetaData rsMD = (RowSetMetaData) webRS.getMetaData();
    System.out.println("rsMD=" + rsMD);
    if (rsMD == null) {
      System.out.println("vendor does not support RowSetMetaData");
    } else {
      int columnCount = rsMD.getColumnCount();
      System.out.println("columnCount=" + columnCount);
    }
    conn.close();
  }

  private static Connection getHSQLConnection() throws Exception {
    Class.forName("org.hsqldb.jdbcDriver");
    System.out.println("Driver Loaded.");
    String url = "jdbc:hsqldb:data/tutorial";
    return DriverManager.getConnection(url, "sa", "");
  }

  public static Connection getMySqlConnection() throws Exception {
    String driver = "org.gjt.mm.mysql.Driver";
    String url = "jdbc:mysql://localhost/demo2s";
    String username = "oost";
    String password = "oost";

    Class.forName(driver);
    Connection conn = DriverManager.getConnection(url, username, password);
    return conn;
  }

  public static Connection getOracleConnection() throws Exception {
    String driver = "oracle.jdbc.driver.OracleDriver";
    String url = "jdbc:oracle:thin:@localhost:1521:caspian";
    String username = "mp";
    String password = "mp2";

    Class.forName(driver); // load Oracle driver
    Connection conn = DriverManager.getConnection(url, username, password);
    return conn;
  }
}

           
       








CreateWebRowSet.zip( 3,848 k)

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