[](()2、引入 redis 起步依赖

• 通过上述的自动创建的工程 redis 的依赖已经自动添加好

[](()3、在测试方法当中默认连接本地的 redis 数据库

不需要配置如何信息

package cn.itbluebox.springbootredis;

import org.junit.jupiter.api.Test;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.boot.test.context.SpringBootTest;

import org.springframework.data.redis.core.BoundValueOperations;

import org.springframework.data.redis.core.RedisTemplate;

@SpringBootTest

class SpringbootRedisApplicationTests {

@Autowired

private RedisTemplate redisTemplate;

@Test

void testSet() {

//存入数据

redisTemplate.boundValueOps("name").set("张三");

}

@Test

void testGet() {

//获取数据

Object name = redisTemplate.boundValueOps("name").get();

System.out.println(name);

}

}

• 启动 redis

• 运行测试类（测试方法 testSet()存入数据）

• 运行测试类（测试方法 testGet()获取数据）

[](()4、配置 redis 相关属性

spring:

redis:

host: 127.0.0.1 #redis 的主机地址

port: 6379

• 运行测试

[](()三、SpringBoot 整合 MyBatis

[](()1、搭建 SpringBoot 工程

[](()2、引入 mybatis 起步依赖,添加 mysq|驱动

通过上述的工程搭建自动添加好了依赖

[](()3、定义表和实体类

• 创建数据库

CREATE DATABASE /!32312 IF NOT EXISTS/springboot /*!40100 DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci */;

USE springboot;

/*Table structure for table t_user */

DROP TABLE IF EXISTS t_user;

CREATE TABLE t_user (

id int(11) NOT NULL AUTO_INCREMENT,

username varchar(32) COLLATE utf8mb4_unicode_ci DEFAULT NULL,

password varchar(32) COLLATE utf8mb4_unicode_ci DEFAULT NULL,

PRIMARY KEY (id)

) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

/*Data for the table t_user */

insert into t_user(id,username,password) values (1,'zhangsan','123'),(2,'lisi','234');

• 创建实体类

package cn.tbluebox.springbootmybatis.domain;

public class User {

private int id;

private String username;

private String password;

public User() {

}

public User(int id, String username, String password) {

this.id = id;

this.username = username;

this.password = password;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getUsername() {

return username;

}

public void setUsername(String username) {

this.username = username;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

@Override

public String toString() {

return "User{" +

"id=" + id +

", username='" + username + ''' +

", password='" + password + ''' +

'}';

}

}

[](()4、编写 DataSource 和 MyBatis 相关配置

#datasource

spring:

datasource:

url: jdbc:mysql:///springboot

username: root

password: root

driver-class-name: com.mysql.jdbc.Driver

[](()5、编写 dao 和 mapper 文件/纯注解开发

package cn.tbluebox.springbootmybatis.mapper;

import cn.tbluebox.springbootmybatis.domain.User;

import org.apache.ibatis.annotations.Mapper;

import org.apache.ibatis.annotations.Select;

import java.util.List;

@Mapper

@Repository

public interface UserMapper {

@Select("select * from t_user")

public List<User> findAll();

}

[](()6、测试

package cn.tbluebox.springbootmybatis;

import cn.tbluebox.springbootmybatis.domain.User;

import cn.tbluebox.springbootmybatis.mapper.UserMapper;

import org.junit.jupiter.api.Test;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.boot.test.context.SpringBootTest;

import java.util.List;

@SpringBootTest

class SpringbootMybatisApplicationTests {

@Autowired

private UserMapper userMapper;

@Test

void findAllUser() {

List<User> all = userMapper.findAll();

System.out.println(all);

}

}

运行测试类

[](()7、编写 dao 和 mapper 文件/XML 开发

[](()（1）创建 UserXmlMapper 接口

package cn.tbluebox.springbootmybatis.mapper;

import cn.tbluebox.springbootmybatis.domain.User;

import org.apache.ibatis.annotations.Mapper;

import org.springframework.stereotype.Repository;

import java.util.List;

@Mapper

@Repository

public interface UserXmlMapper {

public List<User> findAll();

}

[](()（2） 编写配置文件


<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="cn.tbluebox.springbootmybatis.mapper.UserXmlMapper">

<select id="findAll" resultType="user">

select * from t_user

</select>

</mapper>

[](()（3） 配置配置文件

#datasource

spring:

datasource:

url: jdbc:mysql:///springboot

username: root

password: root

driver-class-name: com.mysql.jdbc.Driver

mybatis

mybatis:

mapper-locations: classpath:mapper/*Mapper.xml #mapper 映射文件的路径

type-aliases-package: cn.tbluebox.springbootmybatis.domain

config-location: #指定 mybatis 核心配置文件

[](()（4）完善测试类

package cn.tbluebox.springbootmybatis;

import cn.tbluebox.springbootmybatis.domain.User;

import cn.tbluebox.springbootmybatis.mapper.UserMapper;

import cn.tbluebox.springbootmybatis.mapper.UserXmlMapper;

import org.junit.jupiter.api.Test;

import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.boot.test.context.SpringBootTest;

import org.springframework.test.context.junit4.SpringRunner;