springboot整合HikariCP与通用mapper

依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--使用xml依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <!--禁止传递依赖-->
            <optional>true</optional>
        </dependency>
        <!--jdbc依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <!--mysql驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!--mybatis依赖-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.0.1</version>
        </dependency>
        <!--通用mapper-->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>2.1.5</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>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

实体类

package com.example.demo.entity;

import lombok.Data;
import tk.mybatis.mapper.annotation.KeySql;

import javax.persistence.Column;
import javax.persistence.Id;
import javax.persistence.Table;

/**
 * @Description TODO
 * @Author xsl
 * @Date 2020/7/8 21:37
 **/
 //lombok注解
@Data
//jpa相关注解
@Table(name = "user")
public class User {
    
    
    /**
     * 管理员编号
     */
    //主键
    @Id
    //主键回填
    @KeySql(useGeneratedKeys = true)
    private Integer customerId;
    /**
     * 管理员姓名
     */
     //只要表的列名与之对应即可不写该注解
     @Column
    private String customerName;
    /**
     * 身份证号码  ---->他拿来当密码
     */
    @Column
    private String pid;
    /**
     * 电话
     */
    @Column
    private String telephone;
    /**
     * 地址
     */
    @Column
    private String address;
}

编写UserMapper接口继承Mapper

package com.example.demo.mapper;


import com.example.demo.entity.User;
import tk.mybatis.mapper.common.Mapper;

/**
 * @Description TODO
 * @Author xsl
 * @Date 2020/7/8 21:56
 **/
public interface UserMapper extends Mapper<User> {
    
    
}

相应的测试控制器

package com.example.demo.controller;

import com.example.demo.entity.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;


/**
 * @Description TODO
 * @Author xsl
 * @Date 2020/7/8 21:38
 **/
@RestController
public class UserController {
    
    
    @Autowired
    private UserService userService;
    @RequestMapping("/user")
    public List<User> getUserList(){
    
    
        return userService.getUserList();
    }
}

测试类服务层

服务接口

package com.example.demo.service;

import com.example.demo.entity.User;

import java.util.List;

/**
 * @Description TODO
 * @Author xsl
 * @Date 2020/7/8 21:33
 **/

public interface UserService {
    
    
    /**
     * 获取用户
     * @return
     */
    List<User> getUserList();
}

服务实现

package com.example.demo.service.impl;

import com.example.demo.entity.User;
import com.example.demo.mapper.UserMapper;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @Description TODO
 * @Author xsl
 * @Date 2020/7/8 21:34
 **/
@Service
//事务注解
@Transactional(rollbackFor = Exception.class)
public class UserServiceImpl implements UserService {
    
    

    @Autowired
    private UserMapper userMapper;

    @Override
    public List<User> getUserList() {
    
    
    	//该方法为mapper生成
        return userMapper.selectAll();
    }
}

启动器

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import tk.mybatis.spring.annotation.MapperScan;

@SpringBootApplication
//该注解为tx注解
@MapperScan("com.example.demo.mapper")
public class DemoApplication {
    
    

    public static void main(String[] args) {
    
    
        SpringApplication.run(DemoApplication.class, args);
    }

}

配置文件

spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.25.134:3306/atm
    password: root
    username: root
mybatis:
  #实体类别名包映射文件别名
  type-aliases-package: com.example.demo.entity
#  mapper-locations: classpath:mappers/*.xml
  configuration:
  	#后台打印日志
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

执行