1.源代码
package mysqldatabase;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import com.mysql.jdbc.Connection;
import com.mysql.jdbc.Statement;
public class database {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("你好!");
try {
Class.forName("com.mysql.jdbc.Driver");
System.out.println("成功加载sql驱动");
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
System.out.println("找不到sql驱动");
e.printStackTrace();
}
String url="jdbc:mysql://localhost:3306/test";
Connection conn;
try {
/**
* "jdbc:mysql://我的ip地址/我要访问的数据库","用户名", "密码"
**/
conn = (Connection) DriverManager.getConnection(url, "root","0000");
//创建一个Statement对象
Statement stmt = (Statement) conn.createStatement(); //创建Statement对象
System.out.print("成功连接到数据库!");
System.out.println(conn);
ResultSet rs = stmt.executeQuery("select * from student");
//user 为你表的名称
System.out.println(rs.toString());
while (rs.next()) {
System.out.println(rs.getString("sname"));
}
stmt.close();
conn.close();
} catch (SQLException e){
System.out.println("fail to connect the database!");
e.printStackTrace();
}
}
}
2.mysql数据库配置