IDEA输出中文时乱码

我创建数据库时选了UTF-8 mb4

数据库连接语句也有UTF-8  为啥会乱码呢   下面是涉及到的所有代码

Stringurl="jdbc:mysql://localhost:3306/asduseSSL=false&useUnicode=true&characterEncoding=UTF-8&" +"serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true";

package command;
import com.mooc.h.DbUtils;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class truecommand implements command{
    @Override
    public void execute() {
        Connection conn=null;
        PreparedStatement pstmt=null;
        try {
            conn=DbUtils.getConnection();
            String sql="select * from goods";
            pstmt=conn.prepareStatement(sql);
            ResultSet rs=pstmt.executeQuery();
            while(rs.next()){
                Integer eno=rs.getInt(1);
                String ename=rs.getString(2);
                Float salary=rs.getFloat(3);
                String desp=rs.getString(4);
                System.out.println(eno+"-"+ename+"-"+salary+"-"+desp);
            }
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }finally {
            DbUtils.closeConnection(null,pstmt,conn);
        }
    }
}

package com.mooc.sample;
import command.*;
public class Test {
    public static void main(String[] args) {
        command one=new truecommand();
        one.execute();
    }
}

package com.mooc.h;

import java.sql.*;

public class DbUtils {
    /**
     * 创建新的数据库连接
     * @return 新的Connection对象
     * @throws ClassNotFoundException
     * @throws SQLException
     */
    public static Connection getConnection() throws ClassNotFoundException, SQLException {
        Class.forName("com.mysql.cj.jdbc.Driver");
        String url="jdbc:mysql://localhost:3306/asd?useSSL=false&useUnicode=true&characterEncoding=UTF-8&" +
                "serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true";
        Connection conn= DriverManager.getConnection(url,"root", "www1473040752");
        return conn;
    }

    /**
     * 关闭连接，释放资源
     * @param rs 结果集对象
     * @param stmt Statement对象
     * @param conn Connection对象
     */
    public static void closeConnection(ResultSet rs, Statement stmt, Connection conn){
        try {
            if(rs!=null){
                rs.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        try {
            if(stmt!=null){
                stmt.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        try {
            if((conn != null && conn.isClosed()) == false){
                conn.close();}
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

package command;

public interface command {
 public void execute();
}