一、下载源码

https://github.com/alibaba/nacos/releases

二、引入依赖

<dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-security</artifactId>
</dependency>

三、参考源码

/
Copyright 1999-2018 Alibaba Group Holding Ltd.

Licensed under the Apache License, Version 2.0 (the “License”);
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an “AS IS” BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package com.alibaba.nacos.console.utils;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
/**
 * Password encoder tool
 *
 * @author nacos
 */
public class PasswordEncoderUtil {
    public static void main(String[] args) {
        System.out.println(new BCryptPasswordEncoder().encode("nacos"));
    }
}

四、修改数据库中的这两张表即可