注解开发中如何开通和使用二级缓存

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!--引入外部配置文件-->
    <properties resource="jdbcConfig.properties"/>
    <!--开启二级缓存-->
    <settings>
        <setting name="cacheEnabled" value="true"/>
    </settings>
    <!--配置别名-->
    <typeAliases>
           <package name="com.hope.domain"/>
    </typeAliases>
    <!--配置环境-->
    <environments default="mysql">
        <environment id="mysql">
            <!--配置事务-->
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="${jdbc.driver}"/>
                <property name="url" value="${jdbc.url}"/>
                <property name="username" value="${jdbc.username}"/>
                <property name="password" value="${jdbc.password}"/>
            </dataSource>
        </environment>
    </environments>
    <!--指定带接口的dao文件所在的位置-->
    <mappers>
        <package name="com.hope.dao"/>
    </mappers>
</configuration>

package com.hope.dao;

import com.hope.domain.User;
import com.sun.xml.internal.bind.v2.model.core.ID;
import org.apache.ibatis.annotations.*;
import org.apache.ibatis.mapping.FetchType;

import java.util.List;

/**
 * @author newcityman
 * @date 2019/11/15 - 22:59
 * 使用二级缓存
 */
@CacheNamespace(blocking = true)
public interface IUserDao {
    /**
     * 查询所有用户的信息
     * @return
     */
    @Select(value = "select * from user")
    @Results(id = "userMap",value = {
            @Result(id = true,column ="id" ,property ="userId" ),
            @Result(column = "username" ,property = "userName"),
            @Result(column = "sex",property = "userSex"),
            @Result(column = "address",property = "userAddress"),
            @Result(column = "birthday",property = "userBirthday"),
            @Result(column = "id",property = "accounts",
            many =@Many(select = "com.hope.dao.IAccountDao.findAccountById"
            ,fetchType = FetchType.LAZY)),
    })
    public List<User> findAll();

    /**
     * 根据用户的id，查询用户
     * @param id
     * @return
     */
    @Select("select * from user where id=#{id}")
    @ResultMap(value ={"userMap"} )
    User findOne(Integer id);

    /**
     * 根据用户名模糊查询
     * @param username
     * @return
     */
    @Select("select * from user where username like #{username}")
    @ResultMap("userMap")
    List<User> findByName(String username);


}