Class.forName("oracle.jdbc.driver.OracleDriver");

String url = "jdbc:oracle:thin:@你的主机ip :1521:orcl";// 设置连接字符串

String username = "你的用户名";

String password = "你的密码";

Connection con=java.sql.DriverManager.getConnection(url,user,password);

Statement stmt = con.createStatement();

StringBuffer sql = new StringBuffer("insert into user values （" + list.get(1).getId()+", "+list.get(1).getUserName()+", "+list.get(1).getPassword()+")");

for(int i = 2; i < list.size(); i++){

    sql.append(", ("+ list.get(i).getId()+", "+list.get(i).getUserName()+", "+list.get(i).getPassword()+")");//

}

sql.append(";");

  ResultSet rs = stmt.executeQuery(sql);

rs.close();

 stmt.close();

  con.close();