【Insert】使用java对mysql数据库进行插入操作

//插入100条数据
package database;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class InsertMysql {
    public static void main(String[] args) {
        Connection conn = null;
        PreparedStatement stmt = null;
        try {//加载驱动
            Class.forName("com.mysql.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        try {//获取连接
             conn = DriverManager.getConnection("jdbc:mysql://localhost:3307/mydata","root","");
        } catch (SQLException e) {
            e.printStackTrace();
        }
        try {//根据连接获取一个预执行sql语句的对象
            stmt = conn.prepareStatement("insert into dept values(?,?,?)");
        } catch (SQLException e) {
            e.printStackTrace();
        }
        try {//执行sql语句
            for(int i = 0;i<100;i++){
                stmt.setInt(1, i);
                stmt.setString(2, i+"");
                stmt.setString(3, i+"");
                stmt.executeUpdate();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
        try {//关闭连接
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}