老师还是有乱码问题

package com.imooc.jdbc;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.SQLException;

import java.sql.Statement;

import org.junit.Test;

public class JDBCDemo2 {

@Test

public void demo() {

Connection conn = null;

Statement stat = null;

try {

//1.加载数据库

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

//2.获得连接

conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test1?userSSL=false&serverTimezone=UTC&useUnicode=true&CharacterEncoding=utf-8","root","123456");

stat = conn.createStatement();

String sql = "insert goods(name,price,desp) values('耳机','200','蓝牙耳机')";

int i = stat.executeUpdate(sql);

if(i>0) {

System.out.println("保存成功！");

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally {

if(conn != null) {

try {

conn.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

conn = null;

}

if(stat != null) {

try {

stat.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

stat = null;

}

}

}

}