【mybatis二级缓存】第二次从二级缓存中查询

桃扇骨 2024-03-31 11:08 123阅读 0赞

## 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>
>             
>             <setting name="cacheEnabled" value="true"/>
>     
>             
>             <setting name="logImpl" value="LOG4J"/>
>     
>         </settings>
>         
>         <environments default="mysql">
>             <environment id="mysql">
>                 
>                 <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