java使用JDBC访问MYSQL数据库

1.首先，在eclipse中添加对mysql数据库驱动jar的引用, 项目上右键Properties-> Java Build Path ->Libraries-> Add External JARs，导航到下载到的mysql驱动jar确定即可。



2. 访问代码示例。

package demos;

import java.sql.*;

public class HelloMySQL {
public static void main(String[] args) throws Exception {

Class.forName("com.mysql.jdbc.Driver");

//connection string
String url = "jdbc:mysql://localhost:3306/test";
String username = "root";
String password = "root";

// try to connect mysql server
Connection con = DriverManager.getConnection(url, username, password);
Statement sql_statement = con.createStatement();

//execute query
String query = "select * from person";
ResultSet result = sql_statement.executeQuery(query);

System.out.println("Records in the person table:");
System.out.println("------------------------");
System.out.println("id" + " " + "name" + " " + "age ");
System.out.println("------------------------");

// browse the result set
while (result.next()) {
int id = result.getInt("id");
String name = result.getString("name");
int age = result.getInt("age");
System.out.println(" " + id + " " + name + " " + age);
}

// close connection
sql_statement.close();
con.close();

}

}