实现：

1. 　　自定义注解类
2. 　　自定义myabtis拦截器，拦截mybatis，主要涉及三个handler(StatementHandler，ParameterHandler，ResultSetHandler)
3. 　　自定义加解密工具类
4.        自定义业务处理Service(根据业务自行开发)
5. 　　自定义注解添加再实体类及需要加解密字段上进行简单增改查测试

• 1. 自定义注解类

import java.lang.annotation.*;

/**
 * =====================================
 * *******开发部
 * =====================================
 *
 * @author 开发者
 * @version 1.0-SNAPSHOT
 *
 * @date 2023/2/6
 */
@Target({ElementType.TYPE, ElementType.PARAMETER})
@Retention(RetentionPolicy.RUNTIME)
@Inherited
@Documented
public @interface SensitiveEntity {
}

import java.lang.annotation.*;

/**
 * =====================================
 * ***********开发部
 * =====================================
 *
 * @author 开发者
 * @version 1.0-SNAPSHOT
 * 
 * @date 2023/2/6
 */
@Target({ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
@Inherited
@Documented
public @interface SensitiveField {
}

• 2. 自定义拦截器

import ********.SensitiveEntity;
import ********.AesService;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.executor.parameter.ParameterHandler;
import org.apache.ibatis.executor.resultset.ResultSetHandler;
import org.apache.ibatis.executor.statement.StatementHandler;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Signature;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;

import javax.annotation.Resource;
import java.lang.reflect.Field;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Objects;
import java.util.Properties;

/**
 * =====================================
 * ***********开发部 
 * =====================================
 *
 * @version 1.0-SNAPSHOT
 * @description
 * @date 2023/2/10
 */
@Component
@Intercepts({
        @Signature(type = StatementHandler.class, method = "prepare", args = {Connection.class, Integer.class}),
        @Signature(type = ParameterHandler.class, method = "setParameters", args = PreparedStatement.class),
        @Signature(type = ResultSetHandler.class, method = "handleResultSets", args = {Statement.class})
})
@Slf4j
public class MyBatisInterceptor implements Interceptor {

    @Resource
    private AesService aesService;

    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        Object target = invocation.getTarget();
        //拦截sql结果处理器
        if (target instanceof ResultSetHandler) {
            return resultDecrypt(invocation);
        }
        //拦截sql参数处理器
        if (target instanceof ParameterHandler) {
            return parameterEncrypt(invocation);
        }
        //拦截sql语句处理器
        if (target instanceof StatementHandler) {
            return replaceSql(invocation);
        }
        return invocation.proceed();
    }

    /**
     * 对mybatis映射结果进行字段解密
     *
     * @param invocation 参数
     * @return 结果
     * @throws Throwable 异常
     */
    private Object resultDecrypt(Invocation invocation) throws Throwable {
        //取出查询的结果
        Object resultObject = invocation.proceed();
        if (Objects.isNull(resultObject)) {
            return null;
        }
        //基于selectList
        if (resultObject instanceof ArrayList) {