一.首先创建一个springboot项目（下图是创建的详细步骤）

1.file--->new----->Project

2.开始创建项目

3.

 4.相关的一些依赖如果是有定好的需求可以直接在此添加，如果是后续要加的组件可通过pom文件去添加相关的依赖

 5.创建完成

 二. 开始整合mybatis

1.首先在项目的pom文件中添加springboot以及mybatis的相关依赖  （代码如下：）

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <version>2.1.2.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <groupId>org.junit.vintage</groupId>
            <artifactId>junit-vintage-engine</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.3.2</version>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
</dependency>  
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-pool2</artifactId>
    <version>2.6.0</version>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.19</version>
</dependency>

三.创建如下的结构文件

1.编写实体类 com.zp.zpdemo.Bean.User

package com.zp.zpdemo.Bean;


import java.io.Serializable;

public class User implements Serializable {
    private int id;
    private String name;
    private String password;
    private String perm;

    public String getPerm() {
        return perm;
    }

    public void setPerm(String perm) {
        this.perm = perm;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", password='" + password + '\'' +
                ", perm='" + perm + '\'' +
                '}';
    }
}

2.编写mapper接口 com.zp.zpdemo.Mapper.UserMapper

注意：需要使用@Mapper注解，不然SpringBoot无法扫描

package com.zp.zpdemo.Mapper;

import com.zp.zpdemo.Bean.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;


@Mapper
public interface UserMapper {
    @Select("select name,password from user where id = 1")
    User select(String name, String password);


}

3.编写service接口 com.zp.zpdemo.service.UserService

注意：需要在接口实现类中使用@Service注解，才能被SpringBoot扫描，在Controller中使用@Resource注入

package com.zp.zpdemo.service;

import com.zp.zpdemo.Bean.User;
import com.zp.zpdemo.Mapper.UserMapper;

import org.springframework.stereotype.Service;

import javax.annotation.Resource;

@Service
public class UserService {

    @Resource
   private  UserMapper userMapper;
    public User select(String name,String password){
        return userMapper.select(name,password);
    }


}
 

4.编写控制层接口 com.zp.zpdemo.Controller.UserController

package com.zp.zpdemo.Controller;

import com.zp.zpdemo.Bean.User;

import com.zp.zpdemo.service.UserService;

import com.zp.zpdemo.utils.Redisutils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.annotation.Resource;


@Controller
public class UserController {
    @Resource
    private UserService userService;
    @Resource
    private Redisutils redisutils;


    @RequestMapping("/mybatis")
    public @ResponseBody User user(String name , String password){
       User user = userService.select(name,password);
        redisutils.set(user.getName(),user.getPassword());

        System.out.println(redisutils.get(user.getName())+"==========");
        return user;
    }
}

四. 配置文件application.properties

#访问根路径

#应用名称
spring.application.name=zpdemo

  #访问端口号
server.port=8083

  #编码格式
server.tomcat.uri-encoding=utf-8

  #数据库相关配置
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.0.180:3306/springbootdemo?useUnicode=true&characterEncoding=UTF8&useSSL=false&serverTimezone=UTC&transformedBitIsBoolean=true&allowMultiQueries=true
spring.datasource.username=root
spring.datasource.password=1234

五.数据库表设计（因为有涉及redis，shiro,kafka的内容后续再上相关内容）

六. 启动项目 在浏览器中输入 ：http://localhost:8083/mybatis即可访问

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