addBatch+setAutoCommit+executeBatch的用法

1.建立链接   
  Connection connection =getConnection();
2.不自动 Commit
connection.setAutoCommit(false);  
3.预编译SQL语句,只编译一回哦,效率高啊
PreparedStatement statement = connection.prepareStatement("INSERT INTO TABLEX VALUES(?, ?)");  
//记录1
statement.setInt(1, 1);
statement.setString(2, "Cujo");
statement.addBatch();  
//记录2
statement.setInt(1, 2);
statement.setString(2, "Fred");
statement.addBatch();  
//记录3
statement.setInt(1, 3);
statement.setString(2, "Mark");
statement.addBatch();  
//批量执行上面3条语句.
int [] counts = statement.executeBatch();  
//Commit it  到(DB)里面

如果要插入数万条数据呢？
写个循环不就OK了?