例項：10w條資料的插入(批量插入)

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;


public class HomeWork02
{
    //預處理--注入資料
    public static void main(String[]args) throws Exception
    {
        //載入資料庫
        Class.forName("com.mysql.jdbc.Driver");

        //獲取連線物件
        String url = "jdbc:mysql://localhost:3306/db1?rewriteBatchedStatements=true&useUnicode=true&characterEncoding=UTF-8";
        Connection conn = DriverManager.getConnection(url, "username", "password");

        //連線操作資料庫
        String sql = "insert into homework VALUES (?,?,?) ";
        PreparedStatement pst = conn.prepareStatement(sql);
        for (int i = 1; i <= 100000 ; i++)
        {
            pst.setObject(1,i);
            pst.setObject(2,i+"號");
            pst.setObject(3,i*10+"￥");
            pst.addBatch();
        }

        //操作完成,提交
        pst.executeBatch();
      
        //釋放資源
        pst.close();
        conn.close();

    }
}