src/main/java/com/g9/g9backend/config/MybatisPlusConfig.java

package com.g9.g9backend.config;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.core.toolkit.AES;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment; // 正确导入 Spring 的 Environment
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@MapperScan({"com.g9.g9backend.mapper"})
public class MybatisPlusConfig {

    private final Environment environment;

    public MybatisPlusConfig(Environment environment) {
        this.environment = environment;
    }

    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        return interceptor;
    }

    // 生成 AES 密钥 (只需运行一次，生成后妥善保存)
    public static void main(String[] args) {
        String randomKey = AES.generateRandomKey();
        System.out.println("生成的 AES 密钥: " + randomKey);
        String encryptedPassword = AES.encrypt("", randomKey); // 对实际的数据库密码进行加密
        System.out.println("加密后的密码: " + encryptedPassword);
    }

    // 注册自定义密码解码器
    @Bean
    public PasswordDecoder passwordDecoder() {
        return new CustomPasswordDecoder(environment.getProperty("mybatis-plus.aes-key"));
    }

    // 自定义密码解码器接口
    public interface PasswordDecoder {
        String decode(String encodedPassword);
    }

    // 自定义密码解码器实现
    public static class CustomPasswordDecoder implements PasswordDecoder {

        private final String aesKey;

        public CustomPasswordDecoder(String aesKey) {
            this.aesKey = aesKey;
        }

        @Override
        public String decode(String encodedPassword) {
            try {
                return AES.decrypt(encodedPassword, aesKey);
            } catch (Exception e) {
                throw new RuntimeException("密码解密失败", e);
            }
        }
    }
}