【mybatis二级缓存】第二次从二级缓存中查询

代码部分

1、Dept.java

package com.qingruan.bean;

import java.io.Serializable;

public class Dept implements Serializable {
    private Integer dno;
    private String deptName;
    private String deptLoc;

    @Override
    public String toString() {
        return "Dept{" +
                "dno=" + dno +
                ", deptName='" + deptName + '\'' +
                ", deptLoc='" + deptLoc + '\'' +
                '}';
    }

    public Dept(Integer dno, String deptName, String deptLoc) {
        this.dno = dno;
        this.deptName = deptName;
        this.deptLoc = deptLoc;
    }

    public Dept() {
    }

    public Integer getDno() {
        return dno;
    }

    public void setDno(Integer dno) {
        this.dno = dno;
    }

    public String getDeptName() {
        return deptName;
    }

    public void setDeptName(String deptName) {
        this.deptName = deptName;
    }

    public String getDeptLoc() {
        return deptLoc;
    }

    public void setDeptLoc(String deptLoc) {
        this.deptLoc = deptLoc;
    }
}

2、mybatis-config.xml

<?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>


    <settings>
        <!--开启二级缓存-->
        <setting name="cacheEnabled" value="true"/>

        <!--    指定日志引用的是log4j-->
        <setting name="logImpl" value="LOG4J"/>

    </settings>
    <!--可以设置多个运行环境，满足不同需要，例如 开发、测试、生产环境上有不同一配置 -->
    <environments default="mysql">
        <environment id="mysql">
            <!--事务管理类型主要有jdbc和managed,前者依赖于数据源获得的连接，后者依赖于容器 -->
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <!-- 如果数据库设置为UTF-8,则URL参数