我運行WAMP並創建了MySQL數據庫,但無法連接。誰能幫我?用Java連接到數據庫
package databasetest;
import java.sql.*;
/**
*
* @author kon_f
*/
public class DataBaseTest {
private static final String USERNAME = "root";
private static final String PASSWORD = "";
private static final String CONN_STRING = "jdbc:mysql://localhost:3306/databasetest";
public static void main(String[] args) throws ClassNotFoundException {
Connection conn = null;
try{
conn = DriverManager.getConnection(CONN_STRING,USERNAME,PASSWORD);
System.out.println("Connected!");
}catch (SQLException e){
System.err.println(e);
}
}
}
你忘了加載驅動程序。如果你使用Google。你會發現一些示例 – Jens
運行: 錯誤:無法找到或加載主類databasetest.DataBaseTest C:\ Users \ kon_f \ AppData \ Local \ NetBeans \ Cache \ 8.2 \ executor-snippets \ run.xml:53: Java返回:1 BUILD FAILED BUILDING FAILED(總時間:0秒) – MonkeyDkon
對此問題的第二個回答非常適合此:https://stackoverflow.com/questions/2839321/connect-java-to-a-mysql-database – Tacolibre