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ÔÚ java web ÖÐÅþÁ¬ navicat µÄ°ì·¨£ºÌí¼Ó mysql Çý¶¯Æ÷½¨ÉèÅþÁ¬ÊôÐÔÖ´ÐÐÅÌÎÊ

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ÔÚ Java ´úÂëÖÐ £¬½¨ÉèÒ»¸ö Connection ¹¤¾ß£º

DriverManager.getConnection("jdbc:mysql://localhost:3306/database_name", "username", "password");

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½«ÒÔÏÂÊôÐÔÌ滻ΪÄú×Ô¼ºµÄ MySQL Êý¾Ý¿âÐÅÏ¢£º

Á¬Ã¦Ñ§Ï°¡°JavaÃâ·ÑѧϰÌõ¼Ç£¨ÉîÈ룩¡±£»

localhost£ºÊý¾Ý¿âЧÀÍÆ÷Ö÷»úÃû»ò IP µØµã

3306£ºMySQL ĬÈ϶˿Ú

database_name£ºÒªÅþÁ¬µÄÊý¾Ý¿âÃû³Æ

username£ºMySQL Óû§Ãû

password£ºMySQL ÃÜÂë

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½¨ÉèÒ»¸ö Statement ¹¤¾ßÀ´Ö´ÐÐÅÌÎÊ£º

Statement statement = connection.createStatement();

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±àд²¢Ö´ÐÐ SQL ÅÌÎÊ£º

String query = "SELECT * FROM table_name";
ResultSet resultSet = statement.executeQuery(query);

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ÆÊÎö ResultSet ÒÔ»ñÈ¡ÅÌÎÊЧ¹û£º

while (resultSet.next()) {
    // »ñÈ¡ÁÐÖµ²¢´¦Àí
}

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ʾÀý´úÂë

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

public class Main {

    public static void main(String[] args) {
        try {
            // Ìí¼Ó MySQL Çý¶¯Æ÷
            Class.forName("com.mysql.cj.jdbc.Driver");

            // ½¨ÉèÅþÁ¬
            Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/database_name", "username", "password");

            // Ö´ÐÐÅÌÎÊ
            Statement statement = connection.createStatement();
            String query = "SELECT * FROM table_name";
            ResultSet resultSet = statement.executeQuery(query);

            // ÆÊÎöÅÌÎÊЧ¹û
            while (resultSet.next()) {
                System.out.println("ID: " + resultSet.getInt("id"));
            }

            // ¹Ø±Õ×ÊÔ´
            resultSet.close();
            statement.close();
            connection.close();
        } catch (SQLException | ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}

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