个人项目实战1，搭建springboot+mybatis框架项目

Posted 2021-05-18 weixin_46401390

文章目录

• 前言
• 一，效果图
• 二，步骤
• • 1，idea创建项目
  • 2，编写application.yml配置
  • （1）设置端口
  • （2）设置数据库配置
  • （3）设置mybatis扫描路径
  • 3，编写服务启动入口
  • （1）设置组件扫描路径
  • （2）设置数据源为阿里数据源
  • 4，编写业务测试接口
  • （1）controller
  • （2）Service
  • （3）Dao
  • 5，启动并测试
• 总结

前言

由于之前有使用springMVC做了一个个人的项目，但是想重构成springboot+mybatis框架的项目，因此借此机会顺便记录下搭建一套简单的springboot+mybatis+mysql+阿里数据源的项目的步骤

一，效果图

搭建的是springboot+mybatis+阿里数据源+mysql的框架

二，步骤

1，idea创建项目

选择组件

然后一直下一步就ok了！

或者通过手动添加pom配置是一样的效果，我的pom配置文件：

<?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>2.4.5</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.zhangb</groupId>
	<artifactId>family</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>family</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
	</properties>
	<dependencies>
		<!--springboot组件-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<!--springboot整合mybatis-->
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>2.1.4</version>
		</dependency>
		<!--mysql驱动-->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<scope>runtime</scope>
		</dependency>
		<!-- alibaba的druid数据库连接池 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid-spring-boot-starter</artifactId>
			<version>1.1.22</version>
		</dependency>

		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<excludes>
						<exclude>
							<groupId>org.projectlombok</groupId>
							<artifactId>lombok</artifactId>
						</exclude>
					</excludes>
				</configuration>
			</plugin>
		</plugins>
	</build>

</project>

2，编写application.yml配置

（1）设置端口

（2）设置数据库配置

（3）设置mybatis扫描路径

server:
  port: 8086
spring:
    datasource:
        username: root
        password: 123456
        url: jdbc:mysql://localhost:3306/doctorreimbursement?useUnicode=true&characterEncoding=utf8
        driver-class-name: com.mysql.jdbc.Driver
        type: com.alibaba.druid.pool.DruidDataSource # 使用druid数据源
        filters: stat
        maxActive: 20
        initialSize: 1
        maxWait: 60000
        minIdle: 1
        timeBetweenEvictionRunsMillis: 60000
        minEvictableIdleTimeMillis: 300000
        validationQuery: select 'x'
        testWhileIdle: true
        testOnBorrow: false
        testOnReturn: false
        poolPreparedStatements: true
        maxOpenPreparedStatements: 20
mybatis:
  mapper-locations: classpath:mapper/**/*.xml  #注意：一定要对应mapper映射xml文件的所在路径
  type-aliases-package: com.zhangb.**.entity  # 注意：对应实体类的路径

3，编写服务启动入口

（1）设置组件扫描路径

（2）设置数据源为阿里数据源

package com.zhangb;

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;

import javax.sql.DataSource;

@SpringBootApplication
@ComponentScan("com.zhangb")
public class FamilyApplication {

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

	@Bean(destroyMethod = "close", initMethod = "init")
	@ConfigurationProperties(prefix = "spring.datasource")
	public DataSource druidDataSource() {
		DruidDataSource druidDataSource = new DruidDataSource();
		return druidDataSource;
	}
}

4，编写业务测试接口

（1）controller

package com.zhangb.family.doctor.controller;

import com.zhangb.family.common.module.ViewData;
import com.zhangb.family.doctor.service.ReimbYlCardService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * Created by z9104 on 2021/5/5.
 */
@RestController
@RequestMapping("/ylCard")
public class ReimbYlCardController {

    @Autowired
    private ReimbYlCardService reimbYlCardService;

    /**
     * http://localhost:8086/ylCard/getYlCardCount
     * @return
     */
    @RequestMapping("/getYlCardCount")
    public ViewData getYlCardCount(){
        ViewData viewData = new ViewData();
        viewData.setObj(reimbYlCardService.getYlCardCount());
        return viewData;
    }
}

（2）Service

package com.zhangb.family.doctor.service;

/**
 * Created by z9104 on 2021/5/5.
 */
public interface ReimbYlCardService {

    Integer getYlCardCount();

}

package com.zhangb.family.doctor.service.impl;

import com.zhangb.family.doctor.dao.ReimbYlCardDao;
import com.zhangb.family.doctor.service.ReimbYlCardService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * 医疗账户业务类
 */
@Service
public class ReimbYlCardServiceImpl  implements ReimbYlCardService {

    @Autowired
    private ReimbYlCardDao reimbYlCardDao;

    @Override
    public Integer getYlCardCount() {
        return reimbYlCardDao.getYlCardCount();
    }
}

（3）Dao

package com.zhangb.family.doctor.dao;

import org.apache.ibatis.annotations.Mapper;

/**
 * Created by z9104 on 2021/5/5.
 */
@Mapper
public interface ReimbYlCardDao {

    /**
     * 查询医疗账户数量
     * @return
     */
    Integer getYlCardCount();
}

<?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="com.zhangb.family.doctor.dao.ReimbYlCardDao">

    <resultMap id="baseMap" type="com.zhangb.family.doctor.entity.ReimbYlCard">
        <result column="oid" property="oid"/>
        <result column="yl_card" jdbcType="VARCHAR" property="ylCard"/>
        <result column="master_name" jdbcType="VARCHAR" property="masterName"/>
        <result column="created_date" property="createdDate"/>
    </resultMap>
    <!--查询医疗账号数量-->
    <!--select oid,yl_card,master_name,created_date from tool_yl_card_t-->
    <select id="getYlCardCount" resultType="integer" >
        select count(1) from tool_yl_card_t
    </select>

</mapper>

5，启动并测试

http://localhost:8086/ylCard/getYlCardCount

其中数据库表：

总结

重构第一步搭建框架已完成，总体来说很简单没遇到什么坑。
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