Java JDBC - 如何连接到Derby数据库

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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class Main {
  public static void main(String[] args) throws Exception {
    Class.forName("org.apache.derby.jdbc.ClientDriver");
    Connection con = DriverManager.getConnection(
        "jdbc:derby://localhost:1527/testDb", "name", "pass");
    Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
        ResultSet.CONCUR_UPDATABLE);
    String insertEmp1 = "insert into emp values(10,'A','trainee')";
    String insertEmp2 = "insert into emp values(11,'B','trainee')";
    String insertEmp3 = "insert into emp values(12,'C','trainee')";
    con.setAutoCommit(false);
    stmt.addBatch(insertEmp1);
    stmt.addBatch(insertEmp2);
    stmt.addBatch(insertEmp3);
    ResultSet rs = stmt.executeQuery("select * from emp");
    rs.last();
    System.out.println("rows before batch execution= " + rs.getRow());
    stmt.executeBatch();
    con.commit();
    System.out.println("Batch executed");
    rs = stmt.executeQuery("select * from emp");
    rs.last();
    System.out.println("rows after batch execution= " + rs.getRow());
  }
}
 
 
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